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REVISED ALFA ROMEO 147 IN UK

A revised 3 and 5-door Alfa Romeo 147 range has just gone on sale in the UK, featuring new Giugiaro styling, 150bhp M-Jet diesel engines, uprated interiors and revised chassis dynamics.

Priced from £13,660-£19,040 on-the-road, Alfa Romeo’s sporty mid-size hatchback continues to offer a distinctive alternative within the ‘Elite’ sub-C segment of the market, and with three and five-door versions, three petrol engines, two diesel engines, and Turismo and Lusso equipment options, the new model line-up suits a wide range of tastes and pockets.

Launched in the UK in February 2001, the original Alfa Romeo 147 has gone on to record nearly 360,000 sales worldwide. Its special blend of Italian design flair and advanced engineering, which translates into great handling and sparkling performance, has won Alfa’s prestige compact sports hatch no fewer than 27 awards, including European Car of the Year 2001.

The latest restyled 147 retains the original’s well-proportioned, muscular lines, but the bonnet, front wings and front bumper are all-new to give a cleaner, more dynamic front end. In particular, the distinctive shield-type grille is now larger and positioned lower and further forward, which, together with restyled headlights that sweep back to follow the lines of the V-shaped bonnet, conveys a greater sense of the car’s sporting prowess. The mesh covering to the lower air intakes adds extra dynamic appeal.

One of the strengths of the Alfa Romeo 147 range has been the breadth of its engine choice. Petrol engines in 105 and 120 bhp 1.6 litre, and 150 bhp 2.0 litre Twin Spark guise, and the 115 bhp 1.9 litre JTD common rail turbodiesel engine were joined in 2003 by the groundbreaking, 140 bhp 1.9 litre JTD MultiJet engine, marking the first appearance in the UK of second generation common rail technology. Its adoption of higher injection pressures and multiple, but smaller, injections delivers even greater performance and fuel efficiency, together with reduced carbon dioxide emissions.

Now, with the launch of the revised Alfa 147 range, this engine’s power output has been extended still further, thanks to a modified injection strategy which also benefits noise and vibration levels. Already available in the Alfa Romeo GT, the twin overhead cam, 16-valve unit, with variable geometry Garrett turbocharger, now delivers 150 bhp at 4000 rpm, while the remarkable maximum torque figure remains at 305 Nm (226 lb.ft) at 2000 rpm. The result is a smooth, reliable and quiet delivery of power, with remarkably low fuel consumption allied to sparkling performance and impressive flexibility.

The maximum torque figure is actually greater than that generated by the 250 bhp 3.2 litre petrol V6 of the 147 GTA, and the result is exceptional flexibility: 90% of maximum torque is available between 1750 and 3250 rpm. The 0-60 mph acceleration time drops from 9.1 to 8.8 seconds, while combined cycle fuel consumption remains at a frugal 47.9 mpg.

The MultiJet engine is mated to a six-speed manual transmission, while other versions in the 147 range are equipped with a five-speed manual ’box. Customers choosing the 2.0 litre TS engine can also opt for the innovative Selespeed robotised manual transmission, which dispenses with the clutch pedal to combine the convenience of an automatic with the operating speed and entertainment of a conventional manual. Gear changes are made using either a sequential lever, or paddle controls behind the steering wheel. The electrohydraulic system instantly disengages the clutch, reduces torque, and smoothly selects and engages the required gear. Selecting ‘City’ mode switches Selespeed to a relaxing automatic transmission that is ideal in town traffic.

Precision handling and great roadholding make the Alfa 147 a real driver’s car, one that enhances everyday driving satisfaction. Now, subtle changes to the damper characteristics and suspension design have brought higher standards of ride comfort to complement its dynamic ability. The proven and successful arrangement of double wishbones at the front and MacPherson struts at the rear continues to deliver exceptional lateral grip, swift cornering, great efficiency and crisp steering response.

The 147 range remains comprehensively equipped and a standard fitment on all models are six airbags – front, side and window bags, climate control, load limiters and pretensioners for the front seatbelts, a steering wheel adjustable for height and reach, a height adjustable driver’s seat, electric front windows and door mirrors, tinted windows, remote control central locking, ‘follow me home’ headlamps, 60:40 split folding rear seat and an Alfa code immobiliser and alarm system.

All models now also have an RDS radio/CD player with eight speakers (1.6 TS 105 bhp six speakers).

Turismo models add a leather-trimmed steering wheel and gear knob, while the Lusso specification comes with steering wheel mounted audio controls, cruise control, alloy wheels, front foglamps and an adjustable front armrest with recess. The five-door model also has electric rear windows.

The sense of security provided by the 147’s acclaimed chassis is backed up by some sophisticated driver-aid systems. All models are equipped with anti-lock braking (ABS) and Electronic Brakeforce Distribution (EBD), while 1.6 TS Turismo and Lusso and 1.9 JTD Turismo and Lusso models are equipped with anti-slip regulation (ASR) and the engine torque control system known as Motor Schleppmoment Regelung (MSR). The Vehicle Dynamic Control (VDC) stability system - optional on 1.6 TS Lusso and 1.9 JTD Lusso - comes as standard on Alfa 147 2.0 TS, 2.0 Selespeed Lusso and 1.9 JTD 16V MultiJet Turismo and Lusso.

The 147’s cabin receives fresh new instrument graphics, further two-tone dashboard combinations, additional Alfatex fabrics and, in most models, new rear headrests which allow better visibility.

Additional optional equipment items include parking sensors housed in the rear bumper and a six-position sliding and reclining electrically operated sunroof.

Available as an option on Turismo and Lusso versions is an audio system incorporating an MP3 player for perfect reproduction of digitised sound, while Lusso models can alternatively be equipped with a Bose sound system that has been custom-designed for the 147’s interior to provide concert-quality audio for all occupants.

Finally, the 147 is now available with the advanced telematics system, CONNECT Nav, which includes an RDS radio with CD-ROM reader; trip computer; dual band GSM phone with hands-free operation; GPS module and either a pictogram navigation system (CONNECT Nav) or an active matrix 5″ colour display (CONNECT Nav+).

Its unique green CONNECT key will instantly link the driver to one of the 750 operators at the Arese contact centre, which is operational 365 days a year. Motorists will be connected to an operator who speaks their language and can help find the correct route, give traffic and weather information, and even reserve hotels and restaurants, or purchase plane tickets.

The 147 range offers a choice of 13 colours, five of them new: Radicofani Red, Pergusa Orange, Giannutri Green, Dijon Blue and Navona Grey metallics.

THE ALFA ROMEO 147 IN DETAIL

New, sporty styling

Such is the strength of the original 147 design that it still retains its fresh and visually arresting appearance. The design teams at Alfa Centro Stile and Giugiaro therefore reasoned that the car would benefit little from radical change, instead restricting changes to restyled front and rear aspects.

So the new 147, in both 3 and 5 door versions, retains the same muscular, coupe- like profile, the same strong tension line running from front to rear through the aluminium front door handle; the same tapering roof shape and the traditional V-shaped bonnet flowing from A-pillars to radiator grille.

However, to project a more overt statement of the vitality of both the brand and the car, the Alfa Romeo 147 now has a new bonnet, front bumper and wings.

The more purposeful, more dynamic face is provided by a larger grille which is also positioned lower in relation to the bonnet. The new headlight units with their elongated styling enhance the effect, mirroring the sweep of the bonnet. Headlight units have been made more stylish by their clear covers and three projector style light elements.

The shield-type grille continues to evoke classic Alfa Romeos of the past, plunging downwards to break the bumper line, flanked on either side by revised, mesh covered air intakes. These intakes are bisected at either end by vertical elements which form the housing for the foglamps when fitted.

The final result is a front end that evokes sporting prowess and timeless style. The new bumper adds to the front overhang so that the new 147 is around 5cm longer than its predecessor.

The new face is complemented by subtle design changes at the rear, where the designers have reworked the tailgate and extended the tail-lights in towards the centre line of the car, to create a more triangular outline which mirrors the lower edge of the
rear tailgate glass. The tailgate continues to be hinged 10 cm forward from the trailing edge of the roof to make loading easier. The shape is uncluttered by any handle, the tailgate being released from inside the car or via the central locking remote, when it is automatically released from the body to ensure it can be conveniently raised.

INTERIOR

The new 147 offers a welcoming, airy environment, providing great comfort in terms of space available to driver and passengers. The passenger compartment is roomy, seats are multi-adjustable, and the steering wheel, pedals and gearbox are arranged to allow an instinctive drive. Numerous secondary controls are rationally grouped on the central console. A steering wheel adjustable for reach and rake, together with a height-adjustable driver’s seat, enable drivers of all sizes to find their optimum seating position.

Among the revisions to the latest models is an addition to the range of two tone dashboard finishes – grey on grey – which joins the existing classic combinations of black on black, black on grey and black on beige, the latter enhanced with a more sophisticated embossed pattern. Customers can select from an extensive array of upholstery: the entry level 1.6 TS model features a black fabric trim, Turismo models a flocked cloth in a variety of colours, and Lusso models receive Alfatex as standard. Lusso models may also be specified with optional black sports cloth or leather upholstery.

The curved dashboard now houses a single binnacle display containing the main instruments, which utilise Italian nomenclature such as ‘giri’ (RPM) and ‘acqua’ (WATER). The latest models feature new instrument and control graphics, on a silver or black background, designed for clarity and legibility. At night, the instruments are lit with adjustable intensity red light. This colour allows the eyes to focus more rapidly during the transition from a dark road to a bright dashboard. The fascia itself is now manufactured from upgraded plastics, as used in the GT.

With the exception of the entry level model, the 147 features a multifunctional display that gives access to a clock, the date, a programmable speed warning buzzer, displays for the radio, phone, check control and so on.

A trip computer supplies a set of data relating to the most recent or current journey: fuel consumption (instantaneous and average), average speed, remaining range, journey time (since the trip started) and trip mileage.

The display also lets the driver know when the car reaches a pre-set speed limit. The screen also repeats radio and phone function information: the screen displays the station currently tuned in (and lets the driver know if RDS is active) and indicates whether a CD is being played. Keys on the steering wheel can be used to adjust radio functions on Lusso versions.

The latest 147 models (with the exception of 1.6 TS 105 bhp) feature a new design of rear head-restraint which can be lowered for better visibility.

The roomy luggage compartment measures 292 litres with the rear seats in place, extending to 1042 litres (VDA) with the rear seat backs lowered. It is also extremely practical and can be equipped with a luggage retaining net adjustable to different positions, while its base can be reversed to form a waterproof, washable tray for wet clothes, ski boots etc.

EQUIPMENT

Even the entry level 1.6 TS model comes with a wide range of standard equipment, including

Six airbags – front, side and window bags
ABS anti-lock braking with electronic brake force distribution (EBD)
Climate control system
Load limiters and pretensioners for the front seatbelts
Inertia reel seatbelts on the two rear seats
Steering wheel adjustable for height and reach
Height adjustable driver’s seat
Electric front windows
Heated electric door mirrors
Tinted windows
Remote control central locking
‘Follow me home’ headlamps
60:40 split folding rear seat
RDS radio/CD player with eight speakers (105 bhp 1.6 TS has six)
Alfa code immobiliser and alarm system
Front seats on three-door models are also equipped with a memory function which returns them to their original position after having been moved to allow rear seat access.

Turismo and Lusso models have a leather-trimmed steering wheel and gear knob.

Lusso specification models also add cruise control, front foglamps and an adjustable front armrest with recess. The five-door model has electric rear windows.

The new 147 offers a range of sophisticated driver-aid systems. 1.6 TS Turismo and Lusso and 1.9 JTD Turismo and Lusso models are equipped with anti-slip regulation (ASR) and the engine torque control system, Motor Schleppmoment Regelung (MSR), while Vehicle Dynamic Control (VDC) - optional on 1.6 TS Lusso and 1.9 JTD Lusso - comes as standard on the 2.0 TS, 2.0 Selespeed Lusso and 1.9 JTD 16V M-Jet Turismo and Lusso.

Some options are available in three ‘packs’ of compatible items: for all models there is a Comfort Pack which consists of a third rear central head-restraint, rear armrest, luggage retaining net, and driver’s lumbar adjustment. Available on Lusso models, the Winter Pack includes heated front seats, heated windscreen washer jets and headlight washers, while the Climate Pack includes rain sensor windscreen wipers, and condensation and pollution sensors.

Other options, depending on the version, include a height adjustable passenger seat, xenon headlamps with headlight washers, an auto dipping rear view mirror, rear parking sensors, a 10 disc CD autochanger in the luggage compartment, and a six-position sliding and reclining electric sunroof.

The timed interior lights are equipped with a gradual activation and deactivation system, making it much easier to get into or out of the car at night or in conditions of poor visibility. It is easy to get in and out of the 147, even at night and in poorly lit areas, as there are puddle lights beneath the front doors which illuminate when they are opened.

The standard ‘follow-me-home headlight’ function keeps the dipped beams switched on for a few minutes to give the driver time to walk to the front door after locking the car. The function is activated via the light flasher stalk within two minutes of switching off the engine. Each time the stalk is operated, light activation is extended by 30 seconds, up to a maximum of 3½ minutes.

Climate control

Since in-cabin temperature and humidity are key factors in determining driver and passenger comfort and alertness, the 147 is fitted as standard across the range with a climate control system. Lusso models have a dual-zone, automatic system which controls temperature, air flow, air distribution, compressor activation and recirculation via a central control unit. The dual-zone aspect means that it is possible to maintain two different temperatures simultaneously: one setting on the right side of the passenger compartment, another on the left.

An Air Quality Sensor allows Alfa 147 occupants to breathe clean air at all times, even when travelling around town, in traffic jams and in tunnels. This sensor controls the recirculation function, which is activated automatically to prevent outside air from being ingested by the car when it is being driven in an environment with high levels of pollution.

A two-layer filter also helps improve the quality of air flowing into the car. The first layer traps particles with a diameter greater than 0.5 microns, together with pollen. The second, activated carbon layer traps pollutants and absorbs unpleasant smells.

A sensor located at the base of the windscreen detects solar radiation and the angle at which the rays strike the passenger compartment. Its role is to predict excessive temperature inside the car and inform the climate control system.

All these parameters are monitored continually and used to update the distribution, ventilation and mixing systems automatically. The result is a constant climate, even if outdoor conditions vary significantly.

Passenger compartment temperature can be adjusted by half-a-degree at a time to achieve outstanding climatic comfort. The system allows a variation of 16°C, with a maximum temperature deviation between left and right sides of 7°C.

Manual selections always take priority over automatic settings. Whenever the car is started, the system works on the basis of numbers stored when the engine was last switched off, except for the ‘MAX DEF’ function which has to be re-set. It is possible to turn the system off manually by completely deactivating the air conditioning system.

All 147 versions are equipped with two-speed windscreen wipers which offer four intermittent speeds. The same applies to the rear window, which comes with a continuous operation and intermittent function.

The vehicle is also fitted with ‘active’ electric windows. This means that once the engine has been switched off, the windows can be operated for a further two minutes even if the key is no longer in the ignition. So if the vehicle is parked and the windows left open, they can be closed without switching the ignition back on. For safety reasons, the function may be used only if the doors have not been opened.

Bose® audio system

The option of an MP3-compatible audio system is available on all models except the entry level 1.6 TS. All Lusso models can also be specified with a Bose sound system with amplifier and sub-woofer. The system has been carefully tailored to the 147’s interior by Bose engineers to ensure all passengers enjoy impeccable reproduction under all driving conditions.

Its built-in signal processor automatically adjusts bass notes to ensure they are always faithfully reproduced, and the result ensures natural, high quality sound reproduction at all times.

An active equalisation circuit also ensures electronic output balance at all frequencies, together with clarity of tone throughout the radio range. The sound is made even clearer by active compressor circuits that ensure the system does not suffer from distortion, even at higher volumes.

CONNECT Nav

The new Alfa 147 range is also available with CONNECT Nav (except 1.6 TS 105 bhp), and CONNECT NAV+ (an option on all Lusso models), the most advanced, comprehensive infotelematic package on the market. The system includes an RDS radio with CD-ROM reader; trip computer; dual band GSM phone with hands-free operation; GPS module and either a pictogram navigation system (CONNECT Nav) or an active matrix 5″ colour display (CONNECT Nav+).

Its unique feature is that pressing the green CONNECT key instantly links the driver to one of the 750 operators at the Arese contact centre, which is operational 365 days a year. Motorists will be connected to an operator who speaks their language and can help find the correct route, give traffic and weather information, and even reserve hotels and restaurants, or purchase plane tickets.

Wheels and tyres

Alfa Romeo engineers chose substantially rated tyres for the 105 bhp 1.6 TS and all Turismo models to ensure low drift angles in corners combined with good absorption performance. These 185/65 R 15 tyres are combined with a spoked-design, high-strength steel wheel with a 6″ rim.

Wider, 195/60 tyres and 15″ Elegant alloy wheels with 6.5″ rims are available as an option on these models and are standard on 1.6 TS Lusso and 1.9 JTD Lusso.

2.0 TS and 1.9 JTD 16V M-Jet Lusso models have new 16 inch Spoked alloy wheels, while the Selespeed has 16 inch Sport alloys as standard, all shod with 205/55 tyres.

Finally, 2.0 TS, Selespeed and 1.9 JTD 16V M-Jet Lusso customers can also choose between two types of optional 17 inch alloys.

All models are equipped with a space-saver spare wheel.

Protection against theft

The new 147 is protected against theft attempts by an Alfa CODE II electronic immobiliser that alters its access code every time the car is started. It prevents the engine being started if the car’s original key is not used. The remote control central locking/ignition key unit contains a transponder, i.e. a transmitter with an electronic code that authorises start-up by emitting a secret code when prompted by the electronic control unit.

The code changes for each start-up. It is also transmitted in encrypted form by means of a secret algorithm. The code is read by the control unit via a coaxial aerial housed around the ignition.

The system offers a high degree of security. The secret code is never seen in uncoded form by any operator within the factory or at the key suppliers. The decrypting algorithm is not located in any of the components installed on the car (and cannot therefore be copied). If the system malfunctions, it can still be operated using an emergency procedure known only to the owner.

Car alarm

In addition to an Alfa CODE II immobiliser, the car is also fitted with a volumetric and anti-lift car alarm to deter the theft of objects from inside the passenger luggage compartments and prevent the theft of wheels, or the car itself, by lifting.

The system includes an electronic control unit with an alarm siren located in the engine bay. It is activated by a radio-operated remote control unit housed in the ignition key.

Other simple yet effective anti-theft solutions have also been adopted to deter thieves. These include shields to protect door, boot and bonnet locks.

ENGINES

At the heart of every Alfa Romeo is an exhilarating, responsive engine and 147 customers continue to be offered a comprehensive line-up to suit all tastes: three Twin Spark petrol engines together with the spirited 115 bhp 1.9 JTD diesel engine which complements the new high performance 150 bhp M-Jet diesel unit.

All three Twin Spark engines feature 16 valves and twin overhead camshafts and offer great flexibility and seamless power delivery, with plenty of torque even at low engine speeds. Output for the entry level 1.6 litre unit is 105 bhp, with 0-60 mph acceleration in 11.3 seconds, a top speed of 115 mph, and Combined cycle consumption of just 34.9 mpg.

Both the 120 bhp 1.6 litre TS and 150 bhp 2.0 litre TS engines feature variable valve timing, while the 2.0 litre also uses a variable geometry intake system for strong performance allied to good fuel economy. 60 mph is reached from standstill in 10.6 and 9.3 seconds respectively, while Combined cycle consumption figures are 34.4 mpg and 31.7 mpg respectively. Twin counter-rotating balancer shafts enhance further the refinement of the 2.0 litre TS.

Those customers wanting greater frugality can choose the 115 bhp JTD common rail diesel engine which returns 48.7 mpg (Combined) yet still offers customers a top speed of 119 mph and 0-60 mph acceleration in 9.9 seconds.

The new 1.9 JTD MultiJet engine

The introduction of the 140 bhp MultiJet diesel engine to the 147 range in July 2003 not only extended the diesel ‘reach’ of the range but also marked the first appearance in the UK of groundbreaking, second generation common rail direct injection technology.

Alfa Romeo had already been first to the market with a JTD common rail direct injection (UniJet) diesel engine when the Alfa 156 was launched in 1997, and the 147’s 16-valve Multijet engine maintained that advantage. The exceptionally reliable, 1.9 litre 4-cylinder common rail turbodiesel delivered even greater performance and fuel efficiency, together with reduced carbon dioxide emissions.

Now, with the launch of the revised Alfa 147 range, that power output has been extended further, thanks to a revised injection strategy which also benefits noise and vibration levels. Already available in the stylish Alfa GT, the twin overhead cam, 16-valve unit with variable geometry Garrett turbocharger, delivers 150 bhp at 4000 rpm, while the already substantial maximum torque remains at 305 Nm (226 lb.ft) at 2000 rpm. The result is a smooth, reliable and quiet delivery of power, with remarkably low fuel consumption allied to sparkling performance.

The engine`s maximum torque figure is actually greater than that generated by the 250 bhp 3.2 litre petrol V6 of the 147 GTA, and that translates into exceptional flexibility: 90% of maximum torque is available between 1750 and 3250 rpm. 0-60 mph acceleration drops from 9.1 to 8.8 seconds, while fuel consumption remains at a frugal 47.9 mpg in the Combined cycle.

In order to exploit the engine’s greater output, revised sixth gear and final drive ratios have been introduced to provide refined and relaxed high speed cruising.

MultiJet versus UniJet

MultiJet technology is based on the same common rail principles as those employed in UniJet engines, represented in the 147 by the 115 bhp 1.9 JTD unit. Within a UniJet engine, a pilot injection raises temperature and pressure inside the cylinder to improve combustion at the time of the main power stroke. The MultiJet divides the main injection into a number of smaller injections, affording a fuller, more gradual combustion, while the amount of diesel burnt at each stroke remains the same; smoother, quieter combustion, reduced emissions and increased performance are the result.

To facilitate multi-injection, the injectors reduce the time lag between injections from 1500 to just 150 microseconds, and reduce the minimum quantity of fuel injected from 2 to less than 1 cu mm. The control unit constantly monitors engine rpm, torque required at any given time by the driver, and coolant temperatures, and adjusts the injection strategy accordingly.

Thus, when coolant temperature is less than 60 degrees and torque requirement low, two small and one large injection are performed. As torque demand increases, the number of injections drops to two; one small and one large. Under conditions of high rpm and high torque demand, only one injection is required whilst, with coolant temperature at over 60 degrees, emissions are minimised with one small, one large, then one small injection in the sequence.

Hence, start-up times and exhaust smoke are reduced, noise levels and vibration are lowered to ensure a quieter drive and improved passenger comfort, fuel consumption is reduced by a further 10% and emission control reduction amounts to 50%.

Transmissions

All three petrol engines together with the 115 bhp 1.9 JTD turbodiesel are mated to a five speed manual transmission, while the 150 bhp 1.9 JTD MultiJet is allied to a six-speed manual which fully exploits the supreme flexibility of this engine.

Selespeed gearbox

For those customers looking for an alternative to a conventional manual gearbox, the 147 range continues to offer the choice of a 2.0 TS model equipped with the Selespeed robotised manual gearbox. Dispensing with the clutch pedal, this innovative five-speed transmission combines the convenience of an automatic with the operating speed and entertainment of a conventional manual.

The driver changes gear either via a simple forwards or backwards push on the sequential lever on the transmission tunnel, or by paddle controls behind the steering wheel. The electrohydraulic system instantly disengages the clutch, reduces torque regardless of the extent to which the accelerator is depressed, and smoothly and progressively selects and engages the required gear. There is no risk of the driver missing gearchanges or stalling the engine.

By selecting ‘City’ mode, Selespeed converts to a relaxing automatic transmission that is ideal in town traffic.

How it works

To start the car, the driver depresses the brake pedal and engages an initial gear: first, second or reverse. The sequential lever on the central console must be used to carry out this operation because the steering wheel controls are inactive when the car sets off.

Once over 6 mph, however, the driver can choose between changing gears by using the steering wheel paddles or the sequential lever. The lever takes priority if both controls are operated simultaneously.

Selespeed recognises deceleration, automatically changes down through the gears and disengages the clutch to prevent the engine stalling, selecting the best gear ratio to set off again without bringing the car to a complete halt. The system automatically engages first gear when the car is stationary.

Selespeed also recognises a downhill gradient: in this case, the system automatically engages the clutch once a pre-established speed has been reached, to allow the car to benefit from the effect of engine braking. The driver takes command as soon as the accelerator is pressed.

To ensure complete safety, a gear change is accepted only if it is compatible with upper and lower engine rpm thresholds, and may be interrupted by another request at any time.

The actuator controls are also governed by a time-out system that allows the action to be repeated if it is unsuccessful the first time. Selespeed first re-attempts to engage the gear required, and - if unsuccessful - automatically shifts to the next gear up, so that the car is not left in neutral.

The same gearshift procedures also apply when the ‘City’ function is engaged. The gear to be engaged is selected on a ‘map’ that correlates accelerator pedal position with speed and optimal ratio. When the accelerator is released, Selespeed acts in the same way as with its semi-automatic operation: it engages the clutch to ensure that engine braking occurs if the car is slowing down.

When the car is at a standstill, pressing the brake and pushing the gear lever to the right will engage neutral. If the accelerator and brake pedals are not operated for one minute, the gearbox automatically returns to neutral. For safety reasons, engagement of neutral is prevented at speeds over 25mph.

A gear must be engaged before the engine can be switched off and the ignition key taken out. A buzzer sounds if the ignition key is switched off with the gearbox in neutral.

Selespeed automatically sets itself to neutral upon re-starting.

CHASSIS

The proven and successful arrangement of double wishbones at the front and MacPherson struts at the rear continues, but a series of revisions mean the new Alfa 147’s ride comfort has been enhanced without any adverse effects on its renowned handling characteristics.

The front shock absorber pistons are now longer and housed in Teflon guides, and this has been introduced in conjunction with subtle changes to suspension design, both front and rear.

As far as customers are concerned, the result is a forgiving and drivable chassis that offers safety and control together with the precision and response that one would expect from an Alfa Romeo; yet great comfort is assured under all conditions. The
147 offers exceptional lateral grip, swift cornering, great efficiency and crisp steering response, making it a real driver’s car.

Front suspension

Structurally, the double wishbone system consists of a cast iron bottom wishbone, a steel upright and a light alloy top wishbone. The co-axial spring-shock absorber unit is connected to the body via a flexible top mount, and to the bottom wishbone by a light alloy fork that fits over the driveshaft. For reasons of size and structural rigidity, the top wishbone is mounted on an aluminium shell that doubles as the top spring-damper flexible mount housing, and is bolted rigidly to the shell.

This configuration offers many benefits over more conventional strut front suspensions and gives:

Optimum tyre grip; in a corner the unequal wishbone lengths compensate for body roll by recovering camber
The wishbone geometry allows the steering axle to tilt towards the front of the car – a high caster angle – which reduces yaw under braking
Improved traction, especially in low grip conditions
A self-aligning effect proportional to lateral acceleration in corners
Greater steering precision and sensitivity, even with the high steering angles needed for tight bends on twisting roads
Slight toe-out in the transient phase to compensate for the driver’s steering action on entering a corner
Promotion of anti-dive; the wishbone bases are angled so that the braking force at the point of contact with the road ‘stretches’ the suspension
Inhibition of nose lifting during acceleration; the pulling force transmitted via the pair of half-shafts is applied to the wheel centres, which ‘compresses’ the suspension
No lateral loading on the shock absorber body to cause stiction in the damper
Alfa Romeo engineers reduced friction in the suspension by fitting fluidodynamic bushes to hinge the top wishbone, thus ensuring better absorption of road irregularities. The wishbone hinge and steering arm bushes have been optimised to give:

Increased grip; the wheel is angled less in relation to the road in corners
Optimum stress absorption capacity and thus comfort due to increased longitudinal suspension flexibility
Excellent directional stability; the wheel moves back without affecting the steering when it meets an obstacle
Effective absorption of vertical impact due to optimisation of the upper unit attaching the damper to the bodyshell
Reduction of steering wheel vibration; the steering arms incorporate a flexible element on their centre line
Good stabilising action; the steering arms cause the outside wheel to diverge during the ‘transient release’ stage of corners
Rear suspension

A MacPherson system with advanced geometry, and an anti-roll bar, is fitted at the rear. The rear anti-roll bar is connected to the dampers with spherical bearings to enhance wheel control. The choice of this arrangement ensures stability during high speed manoeuvres, together with agility over mixed surfaces.

Careful selection of the body mounting points and bushing types ensures:

Greater ability to absorb obstacles; the wheel moves backwards without the driver experiencing any negative steering effect
Maximum directional stability
A prompt yet graduated steering response
Excellent car realignment capacity, even in extreme conditions; achieved by consistent rear wheel steering under lateral load
Great driving stability
Steering

The steering system ensures safety and precision at high speed, good ‘feel’ characteristics at all speeds and low effort during parking manoeuvres and at low speed.

The standard equipment power steering comes with special settings tailored to specific 147 versions. It is very quiet because high pressure hydraulic fluid pulses have been minimised by fitting baffles in the pipes (which are also optimised for length and form), the use of fuel cooling coils, and an aluminium pump.

The steering gear has a substantial rack and links (diameters are 28 and 14 mm respectively) to prevent any flexing in the steering system and ensure a more precise response. The final result is extremely durable and it is able to absorb considerable impacts and stress.

All Alfa Romeo cars typically feature very direct steering: the Alfa 147 has 2.2 turns lock to lock, and the turning circle is 11.5 metres.

Brakes

Ventilated 284 x 22 mm front discs and solid rear discs (251 x 10 mm) are standard across the range. They are of the floating type with automatic calliper adjustment to ensure efficiency, fade resistance, reduced pad wear and smooth operation.

The 147 is fitted as standard with a Bosch ABS 5.7 anti-lock braking system, featuring four active sensors, four channels and a 12-solenoid hydraulic control unit. This advanced system is complemented by an electronic brake force distributor (EBD), which ensures that the maximum braking force available on each wheel can be applied up to the point of wheel lock, given the amount of grip available.

VDC

Standard on 2.0 T.Spark, Selespeed and 1.9 JTD M-Jet models is Alfa Romeo’s electronic stability system, VDC (Vehicle Dynamic Control), which intervenes to bring the car back under control when extreme conditions threaten stability. As befits a true Alfa, VDC permits outstanding roadholding while allowing the driver the full satisfaction of controlling the car, cutting in only when the situation reaches a critical condition.

Permanently engaged, it works by continually monitoring tyre grip in both longitudinal and lateral directions. The system’s sensors detect rotation of the car body about its vertical axis (yaw speed), lateral acceleration and the steering wheel angle and compares this data with pre-programmed parameters to establish whether the car is cornering within its grip limits or if the front or rear is about to slide (understeer or oversteer, respectively).

To restore the correct trajectory, it then generates a yawing movement in the opposite direction to the movement that gave rise to the instability, by braking the appropriate wheel (interior or exterior) individually and reducing engine power via the throttle.

The braking is modulated to ensure the action is as smooth as possible, while engine power reduction is contained to ensure outstanding performance and great driving satisfaction at all times.

The VDC communication system includes:

A body computer that constantly exchanges information with the ABS, engine management unit and automatic transmission unit
An electronic throttle (that communicates with the ABS in turn)
A control panel (active warning lights)
The steering wheel and steering column (via the steering sensor)
A gyroscopic sensor installed on the passenger compartment floor to record car yaw and lateral acceleration
ASR (Anti Slip Regulation) and MSR (Motor Schleppmoment Regelung) form an integral part of the VDC package and these individual elements are also standard fitment on 1.6 TS Turismo and Lusso models and 1.9 JTD Turismo and Lusso.

ASR optimises traction at any speed with the aid of the brakes and engine control. The system computes degree of slip on the basis of wheel rpm calculated by the ABS sensors, and activates two different control systems to restore grip: when an excessive power demand causes both driven wheels to slip (e.g. in the case of aquaplaning or when accelerating over an unsurfaced, snowy or icy road), it reduces engine torque by reducing the throttle opening angle and thus air flow; if only one wheel slips (e.g. the inside wheel following acceleration or dynamic load changes), this is automatically braked without the driver touching the brake pedal. The resulting effect is similar to that of a self-locking differential.

The ASR is activated automatically whenever the engine is started. However there is a cut-out switch on the centre console enabling the use of snow chains when the wheel must be able to slip by tiny amounts to pile up the snow so that force can be transmitted to the ground.

MSR cuts in during abrupt downshifts under conditions of low grip, and restores torque to the engine to prevent wheelspin as a result of lock.

SAFETY

The Alfa 147 provides a complete range of passive safety features including six airbags, front seatbelts with pre-tensioners and load limiters, and front and rear seats with an anti-submarining design. The front passenger airbag may be deactivated manually by turning a switch at the far right hand side of the facia with the ignition key, so that a rearward facing baby seat can be transported (the pre-tensioner remains active).

Window bags drop down from the roof lining to protect occupants’ heads in the case of side impact and run along the entire length of the windows.

Torsional rigidity

Torsional rigidity is an essential requirement for safety and comfort and the 147 achieves a notable result on this score: 110,000 kgm/rad for the 3-door version and 95,000 for the 5-door.

The chassis rails are designed to absorb impact energy progressively, while side impact bars in the doors and reinforcements on the central pillar and sills offer substantial protection against side impact.

The reinforced front-hinged body pillars are also able to withstand crushing effects appropriately. The connections between suspension, dashboard and the windscreen pillars have also been strengthened to give the passenger compartment greater transverse rigidity and secure it to the sides at waist height.

Fire Prevention System

The Fire Prevention System (FPS) is a state-of-the-art passive safety system designed to protect the vehicle against fire.

One of the main system components is an inertia switch that immediately cuts off the electric fuel pump in the event of a serious impact. The switch brings about a pressure drop in the fuel supply and prevents fuel emerging. A fuel cut-off valve is also fitted downstream of the tank to prevent fuel flowing out in the case of impact, roll-over or pipe damage.

The plastic fuel tank is resistant to mechanical stress and fire. It is located in a protected position in front of the rear axle.

The 147 range is fitted with a Multiplex electrical system employing maxi-fuses. Thus, the electrical supply is cut when the recorded temperature is too high. The leads connected to the starter motor and alternator are sheathed with an abrasion-resistant coating and are located in protected areas.

Particular care has been devoted to the arrangement of components and auxiliaries that could be damaged by a fault or an accident. The interior trim is fire-resistant and meets tough US flame retardant regulations.