Audi A4 (2008–2015)
- September 2007: Audi A4 launched
- June 2008
- July 2008
- February 2009
- May 2009: Audi S4 unveiled
- July 2009
- August 2009
- October 2011: Revised A4 announced
- June 2013
- March 2014: Audi A4 TDI Ultra launched
Audi A4 launched
Opened for UK order from October 2007. First UK deliveries March 2008. 4,703mm long and 1,826mm wide. New sports chassis with repositioned front axle, all new steering and latest generation quattro system with 40:60 torque split.
Longest wheelbase in the class giving reduced overhangs for optimised weight distribution and exceptional interior space. Engines at launch (UK): 1.8 TFSI 160PS, 3.2 FSI 265PS, 2.0 TDI 143PS, 2.7 TDI 190PS, 3.0 TDI 240PS. Advanced features including Audi Drive Select enabling tailoring of throttle, steering and suspension characteristics to suit driver preferences.
FSI direct petrol injection and common rail piezo TDI engine range at launch in the UK includes 160PS 1.8 Turbo FSI four-cylinder, 265PS 3.2-litre V6 FSI, 143PS 2.0-litre TDI, 190PS 2.7-litre TDI and 240PS 3.0-litre TDI.
Depending on engine chosen, option of either the latest six-speed manual gearbox, an extensively revised, faster-shifting six-speed tiptronic automatic transmission or an updated, even smoother version of the ultra-efficient multitronic continuously variable automatic transmission (CVT) with hill descent control.
A4 1.8TFSI 160 SE 6-speed manual £22,590
A4 3.2FSI 265 SE quattro 6-speed manual £29,680
A4 2.0TDI 143 SE 6-speed manual £23,940
A4 2.7TDI V6 190 SE Multitronic CVT £28,440
A4 3.0TDI V6 240 SE 6-speed manual £30,290
New S line sports specification available from Feb 2008 for all versions of the A4 Saloon at a premium of £2,500 over the SE model in each case. Identifiable by LED strip daytime running lights, S line suspension including 30mm ride height reduction, 18-inch alloy wheels, body and interior upgrades. S line launch coincides with introduction of new lead-in 120PS 1.8 TFSI petrol engine available in conjunction with standard, SE and S line trim levels
Not to be confused with the 1.8-litre Turbo engine that has powered everything from the TT to the A6 in the past, the unit that had so far appeared in the A3 and new A4 in 160PS form is completely new. In its latest 120PS configuration it benefits from the same combination of turbo charging and FSI direct petrol injection for keen response and impressive overall efficiency, which is evidenced in the A4 1.8 TFSI (120PS) by a 0-60mph time of 10.2 seconds, a top speed of 130mph and 39.8mpg combined economy, delivered with a modest 169g/km CO2 output.
The new 120PS engine is available exclusively in conjunction with a six-speed manual gearbox, but for drivers who prefer the convenience of an automatic, the unique-in-class multitronic continuously variable transmission (CVT) has also just opened for order in the new A4 in conjunction with the 160PS version of the 1.8 TFSI engine.
Multitronic maintains the same 8.3-second 0-60mph time and 140mph top speed as the manual A4 1.8 TFSI (160PS). Unusually by automatic transmission standards, the 37.2 mpg combined consumption figure and 179g/km CO2 output it achieves also run the manual version impressively close (39.8mpg, 169g/km).
The A4 1.8 TFSI (120PS) is the first A4 model to be offered in standard specification. In addition to range-wide benefits normally associated with the executive class, such as a space-liberating electromechanical parking brake, intelligent key access and an auto-opening boot lid, it includes 16-inch alloy wheels, an 80-watt audio system with single CD drive and 6.5-inch display, electronic climate control, front and rear electric windows and a split/fold
Latest seven-speed S tronic twin-clutch transmission available with longitudinal engines from late 2008. Where existing six-speed S tronic was limited to the transversely mounted units in TT and A3, the latest transmission with 550Nm torque threshold can technically be fitted to new A4, A5, Q5 and more models in the future.
Range update announced offering lower emissions from petrol and diesel engines.
A4 2.0 TDI 120PS offered in conjunction with Standard, SE and S line specification priced from £22,150 OTR to £26,550 OTR
A4 chain cam 2.0 TFSI 211PS available in front-wheel-drive and quattro four-wheel-drive forms and with SE or S line specification priced from £24,625 OTR to £29,700 OTR
A4 2.0 TDI 120PS @ 4,200rpm, 290Nm @ 1,750-2,500rpm - Saloon manual 0-62mph in 10.7 seconds, top speed 127mph, combined mpg 55.4, CO2 134g/km
A4 chain cam 2.0 TFSI 211PS @ 4,300-6,000rpm, 350Nm @ 1,500-4,200rpm - Saloon manual 0-62mph in 6.9 seconds, top speed 155mph, combined mpg 42.8, CO2 154g/km. 2.0 TFSI is all-new and based on latest generation 1.8 TFSI unit also used by A4, but adds Audi valvelift technology to further improve engine ‘breathing’.
2.0 TDI features advanced common rail injection technology including sophisticated piezo injectors for optimum efficiency 120PS @ 4,200rpm, 290Nm @ 1,750-2,500rpm.
New 170PS version of 2.0-litre piezo injected common rail TDI engine joins 120PS and 143PS versions in A4 Saloon and Avant models. Front-wheel-drive and quattro all-wheel-drive, and in conjunction with SE or S line specification priced from £24,600 OTR to £27,175 OTR
A4 2.0 TDI 170PS @ 4,200rpm, 350Nm @ 1,750-2,500rpm - Saloon manual 0-60mph in 8.0 seconds, top speed 143mph, combined mpg 53.3, CO2 140g/km 350Nm of torque delivered via a six-speed manual from 1,750rpm.
All-new S4 and S4 Avant models debut at 2008 Salon de l’Auto in Paris, 2-10-2008. Available to order in UK from late November priced from approximately £36,000 for first deliveries in April 2009. Supercharged V6 TFSI with 333PS and 440Nm from 2,500-4,850rpm replaces naturally aspirated V8. Six-speed manual or optional seven-speed S tronic twin-clutch transmission that actually further improves fuel economy. Evolution of quattro system with active sport differential capable of varying torque not only between front and rear axles but also between each rear wheel.
New S tronic twin-clutch transmission configured for longitudinal engine installations first used in Q5 SUV and S4 Saloon and Avant – now available in chain cam 2.0-litre TFSI quattro versions of the A4 and A5. Premium of £1,420 over manual transmission. A4 2.0 TFSI quattro S tronic £27,170 OTR, A4 Avant 2.0 TFSI quattro S tronic £28,295 OTR, A5 2.0 TFSI quattro S tronic £31,065 OTR.
S tronic twin-clutch transmission delivers exceptionally rapid gearchanges with no interruption to power flow, reducing acceleration time yet retaining fuel economy and CO2 at the level of manual equivalents
A4 chain cam 2.0 TFSI quattro S tronic 0-62mph in 6.5 seconds (manual 6.6), top speed 150mph (manual 153mph), combined mpg 38.2 (manual 38.2), CO2 172g/km (manual 172g/km)
A4 also now available with new Executive SE and Executive S line specification options
Audi S4 unveiled
Innovative new rear axle for quattro system transforms handling responses by enabling variable torque distribution not only between front and rear axles but also between the rear wheels. Sport differential to be offered initially for the S4 (Saloon £34,260 OTR, Avant £35,600 OTR) as an optional element of the Audi drive select system, but will be rolled out for further models.
With its new active sport differential, Audi elevates the road dynamics of the new S4 quattro. A unique electronic regulating system distributes torque from the engine in continuously variable proportions left and right between the rear wheels, the resulting controlled power flow enabling the car to take corners even more responsively, and to retain its directional stability for considerably longer. With its help the potential for adjustment of the cornering line is much increased and understeer effectively becomes a thing of the past.
Six advances combine to create Audi S4 dynamics. The longer wheelbase of the latest A4 range and its forward mounted axle are the first and second elements, and help to establish the well-balanced basis of the chassis layout. Thirdly, a more advanced 40:60(front/rear) power distribution via quattro contributes to handling poise. For the fourth stage Audi then adds its unique and advanced drive select system enabling the driver to select comfort-oriented or more dynamic settings influencing throttle, steering and suspension response to suit widely varying individual preferences. The most notable advance within drive select is the ability to increase effective steering rack speed.
The 7-speed double clutch S tronic gearbox configured especially for longitudinal or ‘north - south’ application is the fifth key ingredient. This rapid acting, highly-efficient transmission is equipped with shift paddles and reacts responsively in its close interaction with the engine. Downshifts for example generate an automatic ‘blip’ of the throttle.
Finally, the sixth advance is the integration of the sport rear axle for the quattro permanent four-wheel-drive system. Taken to extremes normally reserved for the race circuit it readily allows the driver to create over steer in a controlled way, but its influence over agility and adjustability can be felt throughout the speed range, with the help of the car’s ESP stability control system which has been reconfigured to intervene later to allow maximum exploitation.
With the new sport differential influencing drive to the rear wheels, the S4 exhibits exceptional traction and stability. Close to the car’s handling limits, it acts like ESP, but with the principle reversed: corrective movements are not initiated solely by altering the engine settings or applying the brakes, but also by controlled redistribution of tractive force. As a result the car’s progress is distinctly smoother and more free-flowing, since ESP comes into action much less frequently.
Since its reaction time is extremely short – less than 100 milliseconds – the sport differential takes effect even more rapidly than ESP. Furthermore, ESP can only react to a discrepancy between the car’s steering angle and its actual body rotation (yaw), whereas the sport differential influences the car’s dynamic behaviour before any such discrepancies occur.
Depending on steering angle, lateral acceleration, yaw angle, road speed and other signals, the car’s control unit calculates the most suitable distribution of torque to the wheels for every driving situation. When the steering wheel is turned, for example, or the car accelerated in a corner, power is redirected in a controlled manner to the outer rear wheel. This has the effect of “forcing” the car into the corner so that the angle of the front wheels is followed accurately. The difference in tractive force between the left and right rear wheels also exerts a steering effect, so that the usual steering corrections by the driver are no longer needed. As a result understeer, or the tendency for the car to run wide at the front, is to all intents and purposes eliminated.
Buttons on the centre console enable drivers to vary the operating parameters of the sport differential as part of the Audi drive select adaptive dynamics system in three stages. In the ‘comfort’ mode, driving safety and the car’s stability have absolute priority, with optimal damping of load reversals. In the ‘auto’ mode the program calculates the best possible balance between all the functions. Finally, the ‘dynamic’ mode emphasises the functions contributing to maximum agility, so that the action of the sport differential is most easily felt. In this case, response to load reversals is both agile and easily controllable.
The drive select system also enables the driver to determine the engine’s throttle response characteristics, the feel of the servotronic speed-dependent power steering and the shift points selected by the S tronic transmission, where fitted.
Audi drive select with the sport differential can also be combined with electronic damping control. The gas-filled hydraulic shock absorbers have an additional valve with a continuous opening action. At a cycle frequency of 1000 per second, the control unit computes the optimal damping force. The electromagnetically controlled valve selects a damping characteristic to match the current driving situation at any given moment. Higher damping force may be needed to resist body movement when cornering rapidly or braking, whereas a lower damping force will be appropriate on potholed roads and a moderate setting on poor country roads.
The dynamic steering system uses a superimposed zero-play transmission to vary the effective steering ratio according to road speed. The extremely light, compact and torsionally rigid axial transmission is integrated into the steering column and combined with an electric motor. It operates without any play and is therefore extremely precise, varying its ratio by almost 100 per cent depending on road speed and the drive select mode chosen. When the car is being parked, the steering is extremely direct, whereas when driving in a straight line at high motorway speeds a more indirect steering ratio and reduced power assistance help to optimise the car’s directional stability.
S4's 3.0-litre, V6 power unit produces 333PS thanks to a supercharger generating a "seamless flow of power" from 440Nm of torque. This new V6 replaced the V8 engine of the previous S4 and delivers a 26 per cent cut in fuel consumption and CO2 without any penalty in performance. 0-60mph in 5.1 seconds. Advanced fuelling system uses FSI direct injection combined with Audi valve lift technology to create one of the most efficient high performance engines of its kind.
New A4 2.0 TDIe combines 61.4mpg and 120g CO2 output with strong performance from 136PS common rail diesel. Start-stop and energy recuperation systems. Priced from £23,340 OTR. A4 2.0 TDIe six-speed manual - 136PS @ 4,200rpm, 320Nm @ 1,750-2,500rpm, 0-62mph in 9.5 seconds, top speed 143mph. Supplements 2.0-litre TDI range that already includes 120PS, 143PS and 170PS options.
Audi A4 3.0 TDI clean diesel quattro. The A4 3.0 TDI clean diesel quattro already complies with the emission limits of the EU's Euro 6 standard, expected to become law in 2014. It is also very fuel-efficient, with the potential to cover up to 42.1mpg (Avant: 41.5mpg). And this TDI engine is indeed a powerful performer, needing only 6.2 seconds (Avant: 6.3 seconds) to go from zero to 62mph. Top speed is electronically governed to 155mph. In conjunction with a six-speed tiptronic and quattro permanent all-wheel drive, this vehicle guarantees a high degree of comfort and superior traction.
Revised A4 announced
The new look accentuates the horizontal lines at the front end. The engine hood is more arched, the upper corners of the single frame grille are tapered, and the cross ribs and the Audi rings are highlighted three-dimensionally. The grille is painted grey, with high-gloss black on the six-cylinder models or in combination with the S line exterior package. The redesigned bumpers have angular air inlets, revised grilles and flat front fog lights. The A4 allroad quattro has horizontal chrome applications to the grille and round fog lights.
The headlights now have a slight wave at the bottom edges, and a re-arranged interior. Xenon plus headlights are available as optional equipment or standard on S line models. The LED daytime running lights form a narrow, optically continuous band that remains open in the vicinity of the xenon lens. The adaptive light, together with dynamic and static cornering lights, are available as an option.
The tail lights reflect the shape of the headlights, and in combination with Xenon plus have strips of LEDs. The bumper with its diffuser insert has been redesigned, with the exhaust system always terminating in two tailpipes.
The Saloon and the Avant offer the S line exterior package, while the Avant also includes a roof spoiler.
The A4 Saloon and the Avant each have a length of 4.70 metres(15.42 ft), while the A4 allroad quattro and the S4 are 4.72 metres(15.49 ft)long. The wheelbases for all models are 2.81 metres(9.22 ft), and the width is 1.83 and 1.84 metres, respectively(6.0 and 6.04 ft). The height varies between 1.41 and 1.50 metres(4.63 and 4.92 ft)depending on the body version.
Interiors have also been refined. New steering wheels with chrome and high-gloss inlays, with the leather sport steering wheel also featuring a flattened lower rim. The steering arm and the ignition key have been modified. High-gloss applications and the slender chrome trim at the controls add elegance to the interior.
The MMI navigation plus system now features four instead of eight buttons, with a shift function integrated in the volume control dial. Other improvements concern operation of the automatic transmission, the efficient air conditioning systems, Audi drive select and the multifunction steering wheel. The seat heating and air conditioning are now directly operated at the respective buttons.
All interior colours – except black – have been re-coordinated. The upholstery range has also been revised, with Fine Nappa leather replacing Valcona leather. The new, single-part cluster trim has been adapted in colour to the interior, while the inlays are available in Aluminium Trigon, walnut dark brown and fine grain ash natural. Especially eye-catching is the Beaufort oak plywood inlay.
The interior of the S line sport package comes in black. 18-inch wheels or the optional 19-inch wheels and Sport suspension that lowers the body by 20 millimetres complete the package. S line sport suspension, which lowers the body by a further 10 millimetres, is also available as a no-cost option on S line models. Audi exclusive and Audi exclusive line offer further individualised options.
The A4 Saloon’s luggage compartment retains is 480-litre capacity – 962 litres with the rear seats folded down. The A4 Avant and the A4 allroad quattro have 490 and 1,430 litres, respectively, with Audi offering an optional electrically-operated tailgate for both models.
Fuel consumption levels have dropped by 11 percent on average, despite increased power and torque of many of the engines. In the UK, Audi will offer a choice of five diesel and four petrol engines for both the Saloon and the Avant. All engines are supercharged direct-injection systems; the start-stop system and the recuperation system are standard throughout.
The EA189TDI engines are replaced by the EA288. These engines combine pulling power with pioneering efficiency, with the four-cylinder versions presenting extensive modifications. A new centrifugal pendulum-type absorber (in the 2.0 TDI with 136PS, 163PS or 177PS with quattro drive) in the dual-mass flywheel makes engine running even more refined and quieter at low revs, for even earlier upshifting and better fuel efficiency.
The most economical variant in the model family is the Audi A4 2.0 TDI with 136PS. In the Saloon, this engine helps the car achieve 67.3mpg on the combined cycle – a CO 2 equivalent of just 112 grams per km. The new A4 2.0 TDI with 163PS, also optimised for maximum efficiency, achieves 64.2mpg. This equates to 115 grams CO 2 per km. Both engines are available for the Saloon and the Avant.
In addition, two other four-cylinder diesel engines are available – with 143PS and 177PS. They can also be ordered for the allroad quattro, apart from the entry-level version. Three V6 TDI units complete the line. The 3.0 TDI with 204PS (not for the allroad quattro) is the most efficient six-cylinder engine in its class worldwide; in the A4 Saloon it helps the car achieve 57.6mpg on the combined cycle. The second variant, the 3.0 TDI, generates 245PS.
The A4 series also presents the latest state of the art in petrol engine technology. A new highlight of the TFSI family is the new 1.8-litre engine, available for the Saloon and the Avant. The four-cylinder engine delivers sporty thrust, with a power output of 170PS and 320 Nm (236.02 lb-ft)of torque, and impressive economy figures of 50.4mpg and 134 grams CO 2 per km. That is an efficiency improvement of 19 percent compared with the predecessor engine.
The new 1.8 TFSI engine features many innovations: in the control of its valves and their lift, in the novel thermal management system, in the fuel injection system, in the turbocharger and in the integration of the exhaust manifold in the cylinder head. The engine weighs 3.5 kilograms less and its internal friction has sharply decreased.
The entry-level petrol engine is the 1.8 TFSI with 120PS. The 2.0 TFSI – as the only spark-ignition engine also available in the A4 allroad quattro – delivers 211PS. At the top of the line is the 3.0 TFSI in the sporty S4, which develops an impressive 333PS.
The wide range of drivetrains is typical of Audi. A six-speed manual transmission is standard on the Saloon and Avant models with front-wheel drive; most variants offer continuously variable multitronic as an option. The quattro versions have either the manual transmission or the seven-speed S tronic on board. The A4 allroad quattro employs a manual transmission or S tronic with all engine versions.
A thermal management system shortens the warm-up phase of the manual transmission, among other things, and thereby reduces friction loss. All transmissions are distinguished by convenient and precise operation, high efficiency and a wide spread of gear ratios – the long ratios in the higher gears reduces fuel consumption, while the short ratios in the lower gears benefit the dynamics.
Quattro permanent all-wheel drive is standard on the A4 allroad quattro, and available in the Saloon and Avant from the 2.0 TDI with 177PS. The A4 family uses the self-locking centre differential here. In regular driving operation it primarily transmits the engine torque to the rear wheels in the ratio of 40 to 60. If necessary, redistribution occurs within the shortest possible time. The torque vectoring function supplements the work of the centre differential with finely incremented brake applications, to make handling even more precise and safer.
In the V6 quattro Audi offers the sport differential as a supplement, lending maximum precision and high traction to the A4 when cornering at the handling limits. The high-end component actively distributes the power between the rear wheels as required.
The chassis of the A4 offers sporty precision, high ride comfort and superior safety. The mounts of the rear suspension control arms and the characteristics of the shock absorbers have been even more finely tuned. Most of the components of the five-link front suspension and the trapezoidal-link rear suspension are made of aluminium.
Electromechanical power steering is new. The direct gear ratios convey precise road contact; slight brake applications counteract pulling to the side on unevenly slippery surfaces. The power steering requires no energy for straight-ahead motion, thereby reducing fuel consumption. This is equivalent to a reduction inemissions of up to 7 g/km.
SE Technik specification has became more comprehensive, and more cost effective. At the same time, a number of the most popular engines in the A4 range that can be paired with it have also made valuable power and efficiency gains.
Available for all A4 Saloon and Avant models equipped with a four-cylinder engine, the SE Technik specification takes the more familiar SE trim level as its foundation. To this, it has until now added Milano leather upholstery, hard disk-based MMI navigation plus, Audi Music Interface (AMI) iPod connection and the Audi parking system plus with front and rear visual and acoustic guidance. Now, it also brings an exterior upgrade to 18-inch, ten-spoke ‘exclusive design’ alloy wheels (from 17-inch five-spoke wheels), and includes metallic paint.
The newly enhanced option carries a revised premium of £1,000 – a reduction of £350 from the original price, despite the increase in equipment. As a result, the SE Technik option represents a customer saving of £3,025 compared with the cost of specifying the various items individually.
The underlying SE specification for the A4 is far from minimalist as well. It includes three-zone climate control, cruise control, a Bluetooth phone interface, the Audi Concert audio system incorporating digital radio reception linked to a 6.5-inch colour display, sensors for headlights, wipers and reverse parking and split/folding rear seats. Avant models also feature powered tailgate operation.
It is possible to combine SE Technik specification with a choice of three turbo charged petrol units and three TDI diesels in the A4 Saloon and Avant range. The petrol line-up includes 120PS and 170PS versions of the 1.8-litre TFSI, and the 2.0-litre TFSI, which has just received a power boost from 211PS to 225PS. Like the 1.8-litre TFSI 170PS, this unit has benefited from revisions which enable it to comply with forthcoming 2014 EU6 emissions limits.
The A4 2.0 TFSI quattro S tronic which uses the upgraded 2.0-litre engine has a slightly reduced 0-62mph acceleration time of 6.4 seconds, down from 6.5, and a top speed increase from 152mph to an electronically limited 155mph. And despite the upturn, its CO2 output falls from 159g/km to 155g/km and its combined fuel economy is boosted from 40.4mpg to 42.2mpg.
Three versions of the perennially popular 2.0-litre TDI engine are available for diesel devotees Â– the 143PS unit has just been boosted to 150PS, and is topped and tailed by 136PS and 177PS options, the former powering the acutely economy focused A4 2.0 TDIe. To avoid impacting on this versionÂ’s optimal efficiency, SE Technik models equipped with this particular engine will feature 17-inch alloy wheels with low rolling resistance tyres.
SE Technik specification includes (in addition to SE):
- Milano leather upholstery
- HDD navigation
- Audi Music Interface
- Audi Parking Plus
- 18-inch 10-spoke design alloy wheels (new for 2014 MY, but excluding 2.0-litre TDIe engine)
- Metallic paint (new for 2014 MY)
Audi A4 TDI Ultra launched
Although it shares its 163PS output with the more powerful of the two TDIe engines, the unit powering the latest ultra models is a completely new development engineered for even leaner burning with no impact on performance.
Peak power arrives 1,200rpm earlier at 3,000rpm in the new ultra engine, and maximum torque increases from 380Nm to 400Nm and is available over a wider spread from 1,750rpm to 2,750rpm. Acceleration from rest to 62mph in the exclusively six-speed manual-equipped A4 TDI Ultra is very slightly improved at 8.3 seconds and top speed holds firm at 140mph.
Up to 56.5mpg is possible according to the combined cycle test, delivered with CO2emissions of just 109g/km. Ultra badging at the rear discreetly marks out the A4 Ultra and it can be upgraded to SE Technik specification. A4 SE equipment includes 17-inch alloy wheels, an Audi Concert CD audio system incorporating DAB digital radio and linked to a 6.5-inch colour monitor, light and rain sensors, rear parking sensors and electronic climate control. A5 SE models also feature Milano leather upholstery.
SE Technik specification for the A4 adds Milano leather upholstery, along with additional features such as hard disk-based MMI Navigation plus, Audi Music Interface (AMI) iPod connection and the Audi Parking System Plus with front and rear sensors.
All A4 ultra models are equipped as standard with lowered sports suspension to reduce drag and maximise economy, and for the same reason the 18-inch alloy wheels normally included as part of the SE Technik upgrade for A4 models are omitted.