The Audi A4 (B8 8K) facelift, produced from 2011 to 2015, represented a significant mid-cycle update to the highly successful B8 generation of Audi’s compact executive car. Within this range, the 2.0 TDI ultra model, generating 163 horsepower, occupied a key position as a fuel-efficient and practical option. Introduced in 2014, this variant aimed to balance performance with economy, appealing to drivers prioritizing lower running costs without sacrificing the A4’s renowned refinement. The “ultra” designation signified Audi’s efforts to reduce weight and optimize aerodynamics, further enhancing fuel efficiency. This model was primarily sold in the European market, where diesel engines held a dominant share of the executive car segment.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 (B8 8K, facelift 2011) |
| Type (Engine) | 2.0 TDI ultra (163 Hp) |
| Start of production | 2014 year |
| End of production | 2015 year |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 5 l/100 km (47 US mpg, 56.5 UK mpg, 20 km/l) |
| Fuel consumption (economy) – extra urban | 3.8 l/100 km (61.9 US mpg, 74.3 UK mpg, 26.3 km/l) |
| Fuel consumption (economy) – combined | 4.2 l/100 km (56 US mpg, 67.3 UK mpg, 23.8 km/l) |
| CO2 emissions | 109 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.3 sec |
| Acceleration 0 – 62 mph | 8.3 sec |
| Acceleration 0 – 60 mph | 7.9 sec |
| Maximum speed | 225 km/h (139.81 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 9.4 kg/Hp, 105.8 Hp/tonne |
| Weight-to-torque ratio | 4.1 kg/Nm, 246.8 Nm/tonne |
| Power | 163 Hp @ 3000-4200 rpm |
| Power per litre | 82.8 Hp/l |
| Torque | 380 Nm @ 1750-2750 rpm (280.27 lb.-ft. @ 1750-2750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CNHC |
| 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 | 4.7 l (4.97 US qt | 4.14 UK qt) |
| Kerb Weight | 1540 kg (3395.12 lbs.) |
| Max. weight | 2090 kg (4607.66 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 | 63 l (16.64 US gal | 13.86 UK gal) |
| Max. roof load | 90 kg (198.42 lbs.) |
| Permitted trailer load with brakes (8%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load with brakes (12%) | 1300 kg (2866.01 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 80 kg (176.37 lbs.) |
| Length | 4701 mm (185.08 in.) |
| Width | 1826 mm (71.89 in.) |
| Width including mirrors | 2040 mm (80.31 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.) |
| Front overhang | 862 mm (33.94 in.) |
| Rear overhang | 1031 mm (40.59 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle (turning diameter) | 11.5 m (37.73 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 | 6 gears, manual transmission |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent on trapezoidal lever |
| 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 |
| Wheel rims size | 7.5J x 16 |
Powertrain & Engine Architecture
The heart of the A4 2.0 TDI ultra is the CNHC engine, a 2.0-liter inline-four cylinder diesel engine. This engine utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. The engine features a single turbocharger with an intercooler, boosting power and torque. The DOHC (Double Overhead Camshaft) valvetrain, with four valves per cylinder, contributes to efficient gas exchange. A key element of the “ultra” designation was a reduction in internal engine friction and optimized thermal management. The engine’s output of 163 horsepower at 3000-4200 rpm and 380 Nm (280 lb-ft) of torque between 1750-2750 rpm provided a good balance of performance and fuel economy. The engine was paired with a six-speed manual transmission, which was the standard offering for this variant. While an S tronic dual-clutch transmission was available on other A4 models, it wasn’t offered with this specific engine and trim combination.
Driving Characteristics
The 2.0 TDI ultra with the manual transmission offered a comfortable and refined driving experience. While not overtly sporty, the engine provided sufficient power for everyday driving and overtaking maneuvers. The six-speed gearbox was well-matched to the engine’s torque curve, allowing for smooth and efficient gear changes. Compared to the more powerful 184 hp TDI variant, the 163 hp version felt slightly less responsive, particularly at higher speeds. However, the difference was not dramatic, and the fuel economy benefits were significant. The gear ratios were optimized for fuel efficiency, resulting in a slightly higher cruising RPM compared to the more performance-oriented models. The front-wheel-drive configuration provided predictable handling, although it lacked the all-weather capability of the quattro all-wheel-drive system available on other A4 variants.
Equipment & Trim Levels
The A4 2.0 TDI ultra typically came equipped with a respectable level of standard features. These included Audi’s Multi Media Interface (MMI) infotainment system with a color display, air conditioning, alloy wheels, and a leather-wrapped steering wheel. Safety features such as ABS, electronic stability control, and multiple airbags were standard. Interior upholstery was typically cloth, although leather options were available as an upgrade. Optional extras included features like a sunroof, navigation system, parking sensors, and upgraded sound system. The “ultra” trim generally focused on efficiency, so some luxury features found on higher-spec A4 models were omitted to reduce weight and cost.
Chassis & Braking
The A4 B8 8K featured a fully independent suspension system, with a multi-link setup at the front and a trapezoidal link arrangement at the rear. This provided a comfortable ride and good handling characteristics. The 2.0 TDI ultra variant typically used ventilated front disc brakes and solid rear discs. ABS (Anti-lock Braking System) was standard, enhancing braking performance and stability. The suspension was tuned to prioritize comfort and efficiency, rather than outright sportiness. Stabilizer bars were fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The Audi A4 2.0 TDI ultra was generally well-received by automotive critics for its impressive fuel economy and refined driving experience. It was seen as a practical and sensible choice for drivers covering long distances or prioritizing low running costs. Compared to the more powerful TDI variants, the 163 hp model offered a noticeable improvement in fuel efficiency, although at the expense of some performance. Against competitors like the BMW 320d EfficientDynamics and Mercedes-Benz C220 CDI, the A4 2.0 TDI ultra held its own in terms of fuel economy and refinement. However, some critics noted that the interior materials and design were starting to feel dated compared to newer rivals.
Legacy
The 2.0 TDI CNHC engine proved to be a reliable and durable powertrain when properly maintained. Common issues included diesel particulate filter (DPF) clogging, particularly on vehicles used primarily for short journeys. Regular oil changes and the use of high-quality diesel fuel were essential for ensuring long-term reliability. In the used car market, the A4 2.0 TDI ultra remains a popular choice due to its fuel efficiency and relatively low running costs. However, potential buyers should be aware of the potential for DPF issues and ensure that the vehicle has been well-maintained. The “ultra” models demonstrated Audi’s commitment to improving fuel efficiency and reducing emissions, paving the way for future generations of more environmentally friendly vehicles.



