The Audi A4 (B8 8K) 2.0 TDI 143 hp Multitronic, produced from May 2007 to 2011, represented a significant offering in Audi’s compact executive car lineup. Positioned as a mid-range option within the B8 generation, it aimed to balance fuel efficiency with acceptable performance, appealing to buyers prioritizing economy and comfort over outright speed. This variant was particularly popular in European markets where diesel engines held a dominant share, offering a refined driving experience and lower running costs compared to gasoline alternatives. The B8 A4, built on the Volkswagen Group’s B8 platform (shared with models like the Volkswagen Passat and Škoda Superb), aimed to improve upon its predecessor with enhanced interior quality, improved handling, and updated technology.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 (B8 8K) |
| Type (Engine) | 2.0 TDI (143 Hp) Multitronic |
| Start of production | May, 2007 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 7.8 l/100 km (30.2 US mpg, 36.2 UK mpg, 12.8 km/l) |
| Fuel consumption (extra urban) | 4.7 l/100 km (50 US mpg, 60.1 UK mpg, 21.3 km/l) |
| Fuel consumption (combined) | 5.8 l/100 km (40.6 US mpg, 48.7 UK mpg, 17.2 km/l) |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9.4 sec |
| Acceleration 0 – 62 mph | 9.4 sec |
| Acceleration 0 – 60 mph | 8.9 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 10.5 kg/Hp, 95.7 Hp/tonne |
| Weight-to-torque ratio | 4.7 kg/Nm, 214 Nm/tonne |
| Power | 143 Hp @ 4200 rpm |
| Power per litre | 72.7 Hp/l |
| Torque | 320 Nm @ 1750-2500 rpm (236.02 lb.-ft. @ 1750-2500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EA189 / CAGA |
| Engine displacement | 1968 cm3 (120.09 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 81 mm (3.19 in.) |
| Piston Stroke | 95.5 mm (3.76 in.) |
| Compression ratio | 16.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Kerb Weight | 1495 kg (3295.91 lbs.) |
| Max. weight | 2045 kg (4508.45 lbs.) |
| Max load | 550 kg (1212.54 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 962 l (33.97 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Permitted trailer load with brakes (8%) | 1900 kg (4188.78 lbs.) |
| Permitted trailer load with brakes (12%) | 1700 kg (3747.86 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4703 mm (185.16 in.) |
| Width | 1826 mm (71.89 in.) |
| Height | 1427 mm (56.18 in.) |
| Wheelbase | 2808 mm (110.55 in.) |
| Front track | 1564 mm (61.57 in.) |
| Rear (Back) track | 1551 mm (61.06 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle (turning diameter) | 11.4 m (37.4 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | automatic transmission Multitronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/55 R16; 225/50 R17 |
| Wheel rims size | 7.5J x 16; 7.5J x 17 |
Powertrain & Engine Architecture
At the heart of the A4 2.0 TDI Multitronic lies the EA189 series 2.0-liter inline-four diesel engine, specifically the CAGA engine code. This engine utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. The turbocharger, coupled with an intercooler, forces more air into the cylinders, boosting power output. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, enhancing breathing and efficiency. The Multitronic transmission is a continuously variable transmission (CVT) offering smooth, stepless gear changes. Unlike traditional automatic transmissions with fixed gear ratios, the Multitronic uses a chain-driven system to provide an infinite number of ratios within its operating range. This allows the engine to operate at its most efficient point, improving fuel economy and reducing emissions.
Driving Characteristics
The 143 hp output, combined with the Multitronic transmission, provided adequate, though not exhilarating, performance. Acceleration from 0-60 mph took approximately 8.9 seconds, and top speed was limited to 130.49 mph. The Multitronic transmission prioritized smooth operation and fuel efficiency over sporty responsiveness. While it offered quick acceleration in many situations, it lacked the direct feel and immediate response of a traditional manual gearbox or a dual-clutch transmission. The engine delivered its peak torque of 320 Nm (236 lb-ft) between 1750 and 2500 rpm, providing good mid-range punch for everyday driving and overtaking maneuvers. Compared to the more powerful 170 hp TDI variant, the 143 hp model felt noticeably less responsive, particularly at higher speeds. However, it offered a more relaxed driving experience and better fuel economy.
Equipment & Trim Levels
The 2.0 TDI 143 hp Multitronic typically came equipped with a respectable level of standard features. These included air conditioning, power windows, power mirrors, a multi-function steering wheel, and an Audi Concert audio system. Higher trim levels, such as the SE or S-Line, added features like alloy wheels, upgraded interior trim, parking sensors, and a more advanced audio system. Optional extras included leather upholstery, a sunroof, navigation system, and xenon headlights. The interior design was typically functional and well-built, reflecting Audi’s reputation for quality. Upholstery options ranged from cloth to leather, and dashboard trim could be specified in various materials, including wood or aluminum.
Chassis & Braking
The B8 A4 featured a fully independent suspension system, with multi-link setups at both the front and rear. This provided a comfortable ride and good handling characteristics. The front suspension utilized coil springs and shock absorbers, while the rear suspension also incorporated a stabilizer bar to reduce body roll. Braking duties were handled by ventilated discs at the front and solid discs at the rear. Anti-lock Braking System (ABS) was standard, enhancing safety and control during emergency braking. The steering was a rack-and-pinion system with electric power assistance, providing precise and responsive steering feel.
Market Reception & Comparison
The Audi A4 2.0 TDI 143 hp Multitronic was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. However, some critics found the Multitronic transmission to be less engaging than a manual gearbox. Compared to the more powerful TDI variants, the 143 hp model offered a more affordable entry point into the A4 range, but at the expense of performance. Its fuel economy was competitive with other diesel-powered cars in its class, and its reliability was generally considered to be good, although the Multitronic transmission did have a reputation for requiring more frequent servicing than traditional automatics.
Legacy
The EA189 engine, while generally reliable, has been subject to recalls due to potential issues with the fuel injector seals. The Multitronic transmission, while offering smooth operation, can be expensive to repair if problems arise. Today, the A4 2.0 TDI 143 hp Multitronic can be found on the used car market at relatively affordable prices. It remains a popular choice for buyers seeking a comfortable, fuel-efficient, and well-equipped compact executive car. However, potential buyers should be aware of the potential maintenance costs associated with the Multitronic transmission and the EA189 engine, and ensure that any vehicle they consider has been properly maintained.
