The Audi A5 Sportback (8TA) 2.0 TDI quattro, produced between 2009 and 2011, represents a compelling blend of practicality, performance, and Audi’s signature refinement. Positioned within the A5 Sportback range – a five-door coupe based on the B8 Audi A4 platform – this variant offered all-wheel drive capability and a diesel engine, catering to European markets prioritizing fuel efficiency and year-round usability. It occupied a mid-range position in the A5 Sportback lineup, offering a step up in performance from the lower-powered TDI options while remaining more accessible than the higher-output petrol variants like the 2.0 TFSI.
Technical Specifications
| Brand | Audi |
| Model | A5 |
| Generation | A5 Sportback (8TA) |
| Type (Engine) | 2.0 TDI (170 Hp) quattro |
| Start of production | 2009 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Fastback |
| Seats | 4 |
| Doors | 5 |
| Fuel consumption (urban) | 7.3 l/100 km (32.2 US mpg, 38.7 UK mpg, 13.7 km/l) |
| Fuel consumption (extra urban) | 5 l/100 km (47 US mpg, 56.5 UK mpg, 20 km/l) |
| Fuel consumption (combined) | 5.8 l/100 km (40.6 US mpg, 48.7 UK mpg, 17.2 km/l) |
| CO2 emissions | 152 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.6 sec |
| Acceleration 0 – 62 mph | 8.6 sec |
| Acceleration 0 – 60 mph | 8.2 sec |
| Maximum speed | 223 km/h (138.57 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.4 kg/Hp, 106.3 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 218.8 Nm/tonne |
| Power | 170 Hp @ 4200 rpm |
| Power per litre | 86.4 Hp/l |
| Torque | 350 Nm @ 1750-2500 rpm (258.15 lb.-ft. @ 1750-2500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CAHA |
| 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) |
| Kerb Weight | 1600 kg (3527.4 lbs.) |
| Max. weight | 2130 kg (4695.85 lbs.) |
| Max load | 530 kg (1168.45 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 980 l (34.61 cu. ft.) |
| Fuel tank capacity | 64 l (16.91 US gal | 14.08 UK gal) |
| Max. roof load | 90 kg (198.42 lbs.) |
| Permitted trailer load with brakes (8%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load with brakes (12%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 80 kg (176.37 lbs.) |
| Length | 4711 mm (185.47 in.) |
| Width | 1854 mm (72.99 in.) |
| Height | 1391 mm (54.76 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1590 mm (62.6 in.) |
| Rear (Back) track | 1575 mm (62.01 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.5 m (37.73 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| 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 | 225/50 R17 |
| Wheel rims size | 7.5J x 17 |
Powertrain & Engine Architecture
At the heart of the A5 Sportback 2.0 TDI quattro lies the CAHA engine code, a 2.0-liter inline-four cylinder diesel engine. This engine is a member of the Volkswagen Group’s modular engine family, known for its robust construction and efficiency. The CAHA utilizes a common rail direct injection system, delivering fuel directly into the combustion chamber at extremely high pressure for optimized combustion. A turbocharger with an intercooler is employed to boost power output, providing 170 horsepower at 4200 rpm and a substantial 350 Nm (258 lb-ft) of torque between 1750 and 2500 rpm. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, enhancing breathing and contributing to its power delivery. The 6-speed manual transmission was standard, providing a balance between fuel economy and driver engagement.
Driving Characteristics
The 2.0 TDI quattro offered a refined driving experience, prioritizing comfort and efficiency over outright performance. While not as quick as the petrol-powered A5 variants, the 170 hp diesel provided ample power for everyday driving and confident overtaking. The quattro all-wheel-drive system ensured excellent traction in all weather conditions, enhancing stability and control. The manual transmission, while offering a more engaging experience than an automatic, had gear ratios tuned for fuel economy rather than aggressive acceleration. The engine’s peak torque, available from relatively low revs, meant that strong pulling power was readily accessible, making it a capable cruiser and a practical choice for long journeys.
Equipment & Trim Levels
The A5 Sportback 2.0 TDI quattro typically came well-equipped, reflecting Audi’s premium positioning. Standard features included alloy wheels, automatic climate control, a multi-function steering wheel, and an Audi Concert audio system. Interior upholstery was typically cloth, with leather options available as an upgrade. Optional extras included a navigation system, parking sensors, heated seats, and a panoramic sunroof. Trim levels varied slightly depending on the market, but generally offered progressive enhancements in terms of interior materials, exterior styling, and technology features.
Chassis & Braking
The A5 Sportback’s chassis featured independent multi-link suspension at both the front and rear, providing a comfortable ride and precise handling. The front suspension utilized coil springs and shock absorbers, while the rear suspension incorporated a stabilizer bar to reduce body roll. Braking duties were handled by ventilated discs at the front and solid discs at the rear, coupled with an Anti-lock Braking System (ABS) for enhanced safety. The steering system was a rack-and-pinion setup with electric power assistance, offering a responsive and precise feel.
Market Reception & Comparison
The Audi A5 Sportback 2.0 TDI quattro was generally well-received by automotive critics. It was praised for its stylish design, refined interior, and efficient diesel engine. Compared to other trims in the A5 Sportback lineup, the 2.0 TDI quattro offered a compelling balance of performance, fuel economy, and price. While the 2.0 TFSI petrol variants provided more exhilarating performance, they were also more expensive and less fuel-efficient. The lower-powered TDI models offered even better fuel economy but lacked the performance of the 170 hp version.
Legacy
The CAHA engine, found in the A5 Sportback 2.0 TDI quattro, has proven to be a relatively reliable powertrain when properly maintained. Common issues include turbocharger wear and potential problems with the diesel particulate filter (DPF), particularly on vehicles primarily used for short journeys. However, with regular servicing and preventative maintenance, these engines can provide many years of reliable service. Today, the A5 Sportback 2.0 TDI quattro remains a popular choice in the used car market, offering a stylish and practical alternative to more conventional estate cars or saloons.
