The Audi A5 Coupe (8T3) 2.0 TDI quattro, produced between 2008 and 2011, represented a compelling blend of performance, efficiency, and Audi’s signature quattro all-wheel drive system. Positioned as a mid-range offering within the A5 lineup, it catered to buyers seeking a sporty coupe experience with the added benefit of diesel economy and all-weather capability. This variant occupied a space between the more affordable 1.8 TFSI models and the higher-performance 3.0 TDI and S5 variants. It was a key model in Audi’s strategy to offer a diverse range of A5 options to appeal to a broad customer base, particularly in European markets where diesel engines were – and continue to be – highly popular.
Technical Specifications
| Brand | Audi |
| Model | A5 |
| Generation | A5 Coupe (8T3) |
| Type (Engine) | 2.0 TDI (170 Hp) quattro |
| Start of production | 2008 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 7.1 l/100 km (33.1 US mpg, 39.8 UK mpg, 14.1 km/l) |
| Fuel consumption (extra urban) | 4.9 l/100 km (48 US mpg, 57.6 UK mpg, 20.4 km/l) |
| Fuel consumption (combined) | 5.7 l/100 km (41.3 US mpg, 49.6 UK mpg, 17.5 km/l) |
| CO2 emissions | 149 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.2 sec |
| Acceleration 0 – 62 mph | 8.2 sec |
| Acceleration 0 – 60 mph | 7.8 sec |
| Maximum speed | 228 km/h (141.67 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.1 kg/Hp, 110.4 Hp/tonne |
| Weight-to-torque ratio | 4.4 kg/Nm, 227.3 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 | 18:1 |
| 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 | 1540 kg (3395.12 lbs.) |
| Max. weight | 2040 kg (4497.43 lbs.) |
| Max load | 500 kg (1102.31 lbs.) |
| Trunk (boot) space – minimum | 455 l (16.07 cu. ft.) |
| Trunk (boot) space – maximum | 829 l (29.28 cu. ft.) |
| Fuel tank capacity | 64 l (16.91 US gal | 14.08 UK gal) |
| Max. roof load | 75 kg (165.35 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 | 4625 mm (182.09 in.) |
| Width | 1854 mm (72.99 in.) |
| Height | 1372 mm (54.02 in.) |
| Wheelbase | 2751 mm (108.31 in.) |
| Front track | 1590 mm (62.6 in.) |
| Rear (Back) track | 1577 mm (62.09 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 11.4 m (37.4 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 Coupe 2.0 TDI quattro lies the Volkswagen Group’s common rail diesel engine, specifically the CAHA engine code. This 1968cc inline-four cylinder engine utilizes a turbocharger with an intercooler to boost power and efficiency. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing gas flow for improved performance. The common rail direct injection system, operating at a high pressure of 1800 bar, ensures precise fuel delivery and contributes to the engine’s relatively clean emissions, meeting Euro 5 standards. The engine produces 170 horsepower at 4200 rpm and a substantial 350 Nm (258 lb-ft) of torque between 1750 and 2500 rpm. This broad torque curve is a hallmark of diesel engines, providing strong pulling power across a wide range of engine speeds. The engine also incorporates a diesel particulate filter (DPF) to further reduce emissions.
Driving Characteristics
The 2.0 TDI quattro offered a distinctly different driving experience compared to the higher-output variants. While lacking the outright acceleration of the 3.0 TDI or S5, the 2.0 TDI provided a smooth and refined driving experience, particularly well-suited for long-distance cruising. The quattro all-wheel drive system provided excellent traction in all weather conditions, enhancing stability and confidence. The six-speed manual transmission, standard on this model, offered precise shifts and allowed drivers to fully utilize the engine’s torque. Acceleration from 0-60 mph took approximately 7.8 seconds, respectable for a coupe of this size and weight. The emphasis was on usability and efficiency rather than outright performance, making it a practical choice for daily driving.
Equipment & Trim Levels
The A5 Coupe 2.0 TDI quattro typically came equipped with a generous level of standard features. These included automatic climate control, a multi-function steering wheel, power windows and mirrors, and an Audi Concert audio system. Upholstery was typically cloth, although leather options were available. Optional extras included a sunroof, navigation system, upgraded audio systems (such as Bang & Olufsen), and parking sensors. Trim levels varied slightly depending on the market, but generally offered packages that added features like heated seats, upgraded interior trim, and larger alloy wheels.
Chassis & Braking
The A5 Coupe featured a sophisticated chassis design. Front suspension utilized an independent multi-link setup, providing excellent ride comfort and handling precision. The rear suspension also employed an independent multi-link configuration, further enhancing ride quality and stability. Brakes consisted of ventilated discs at the front and solid discs at the rear, providing ample stopping power. Anti-lock braking system (ABS) was standard, enhancing safety and control during emergency braking situations. The car’s weight distribution, aided by the longitudinal engine layout and quattro system, contributed to its balanced handling characteristics.
Market Reception & Comparison
The Audi A5 Coupe 2.0 TDI quattro was generally well-received by automotive critics. It was praised for its stylish design, comfortable interior, and efficient engine. The quattro all-wheel drive system was a significant selling point, particularly in regions with inclement weather. Compared to the 1.8 TFSI models, the 2.0 TDI offered superior torque and fuel economy, making it a more practical choice for drivers covering long distances. However, it lacked the outright performance of the more expensive 3.0 TDI and S5 variants. Fuel economy was a key strength, averaging around 41.3 US mpg in combined driving, making it a cost-effective option for everyday use.
Legacy
The 2.0 TDI engine, in various iterations, proved to be a reliable and durable powertrain. The CAHA engine, while not without its potential issues (such as DPF clogging and turbocharger wear), generally offered good longevity with proper maintenance. Today, the A5 Coupe 2.0 TDI quattro represents a relatively affordable entry point into the Audi coupe world. Well-maintained examples are still sought after by enthusiasts who appreciate their blend of style, efficiency, and all-weather capability. The car’s enduring appeal is a testament to Audi’s engineering prowess and the enduring popularity of the A5 platform.
