The Audi A3 Sedan (8V) 1.4 TFSI COD ultra, produced from 2014 to 2016, represented a key offering in Audi’s compact executive car lineup. Positioned as a fuel-efficient variant within the 8V A3 Sedan range, it aimed to deliver a balance of performance and economy. This model utilized Audi’s Cylinder On Demand (COD) technology, a feature designed to enhance fuel efficiency by deactivating two cylinders under light load conditions. It was a significant model for Audi as it showcased their commitment to innovative engine technology within the popular A3 platform, which shared its underpinnings with the Volkswagen Golf, SEAT Leon, and Skoda Octavia (the A3/Golf family, known internally as the PQ25 or A3 platform).
Technical Specifications
| Brand | Audi |
| Model | A3 |
| Generation | A3 Sedan (8V) |
| Type (Engine) | 1.4 TFSI COD ultra (150 Hp) S-tronic |
| Start of production | 2014 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 5.8 l/100 km (40.6 US mpg, 48.7 UK mpg, 17.2 km/l) |
| Fuel consumption (extra urban) | 4.1 l/100 km (57.4 US mpg, 68.9 UK mpg, 24.4 km/l) |
| Fuel consumption (combined) | 4.7 l/100 km (50 US mpg, 60.1 UK mpg, 21.3 km/l) |
| CO2 emissions | 109 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.2 sec |
| Acceleration 0 – 62 mph | 8.2 sec |
| Acceleration 0 – 60 mph | 7.8 sec |
| Maximum speed | 224 km/h (139.19 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.3 kg/Hp, 120 Hp/tonne |
| Weight-to-torque ratio | 5 kg/Nm, 200 Nm/tonne |
| Power | 150 Hp @ 5000-6000 rpm |
| Power per litre | 107.5 Hp/l |
| Torque | 250 Nm @ 1500-3500 rpm (184.39 lb.-ft. @ 1500-3500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | CZDA, CZEA |
| Engine displacement | 1395 cm3 (85.13 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 74.5 mm (2.93 in.) |
| Piston Stroke | 80 mm (3.15 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4 l (4.23 US qt | 3.52 UK qt) |
| Kerb Weight | 1250 kg (2755.78 lbs.) |
| Max. weight | 1800 kg (3968.32 lbs.) |
| Max load | 550 kg (1212.54 lbs.) |
| Trunk (boot) space – minimum | 425 l (15.01 cu. ft.) |
| Trunk (boot) space – maximum | 880 l (31.08 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (8%) | 1700 kg (3747.86 lbs.) |
| Permitted trailer load with brakes (12%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load without brakes | 660 kg (1455.05 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4456 mm (175.43 in.) |
| Width | 1796 mm (70.71 in.) |
| Width including mirrors | 1960 mm (77.17 in.) |
| Height | 1416 mm (55.75 in.) |
| Wheelbase | 2637 mm (103.82 in.) |
| Front track | 1555 mm (61.22 in.) |
| Rear (Back) track | 1526 mm (60.08 in.) |
| Front overhang | 869 mm (34.21 in.) |
| Rear overhang | 950 mm (37.4 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.0 m (36.09 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 | 7 gears, automatic transmission S-tronic |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| 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 | 205/55 R16 |
| Wheel rims size | 7.0J x 16 |
Powertrain & Engine Architecture
The heart of the A3 Sedan 1.4 TFSI COD ultra is the CZDA or CZEA engine code, a 1.4-liter inline-four cylinder gasoline engine. This engine features direct fuel injection and a turbocharger with an intercooler, enabling it to produce 150 horsepower and 250 Nm (184 lb-ft) of torque. The key innovation is the Cylinder On Demand (COD) system. Under partial load conditions, the system shuts down cylinders two and three, effectively turning the engine into a two-cylinder unit to reduce fuel consumption. This switch is virtually imperceptible to the driver. The engine utilizes a dual-mass flywheel to mitigate vibrations during cylinder deactivation. The S-tronic 7-speed dual-clutch transmission (DCT) was standard, offering quick and smooth gear changes. This transmission is known for its efficiency and responsiveness, contributing to the overall fuel economy of the vehicle.
Driving Characteristics
The 1.4 TFSI COD ultra with the S-tronic transmission delivers a comfortable and refined driving experience. Acceleration from 0 to 60 mph takes approximately 7.8 seconds, and the car reaches a top speed of 139 mph. While not a performance-oriented variant, it provides adequate power for everyday driving situations. The S-tronic transmission’s quick shifts enhance responsiveness, but the power delivery isn’t as immediate as in higher-output A3 models like the 2.0 TFSI. The gear ratios are tuned for fuel efficiency, meaning the engine may feel slightly strained during aggressive acceleration or when climbing hills. The COD system operates seamlessly, and most drivers won’t notice the transition between four and two cylinders.
Equipment & Trim Levels
The 1.4 TFSI COD ultra typically came equipped with a respectable level of standard features. These included Audi’s Multi Media Interface (MMI) infotainment system with a 5.8-inch display, Bluetooth connectivity, air conditioning, and alloy wheels. Interior upholstery was typically cloth, with options for leather upgrades. Common optional extras included a sunroof, navigation system, parking sensors, and upgraded sound systems. The trim level generally sat in the mid-range of the A3 Sedan lineup, offering a good balance of features and affordability.
Chassis & Braking
The A3 Sedan 1.4 TFSI COD ultra utilizes a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable ride and good handling characteristics. The front brakes are ventilated discs, while the rear brakes are solid discs. ABS (Anti-lock Braking System) is standard. The suspension is tuned for comfort rather than outright sportiness, but it still provides a stable and controlled driving experience. Stabilizer bars are present on both axles to reduce body roll during cornering.
Market Reception & Comparison
The A3 Sedan 1.4 TFSI COD ultra was generally well-received by automotive critics for its fuel efficiency and comfortable ride. It was often praised for its innovative COD technology and the smooth operation of the S-tronic transmission. Compared to the higher-output 2.0 TFSI models, the 1.4 TFSI offered significantly better fuel economy but lacked the same level of performance. The 1.8 TFSI models offered a middle ground, providing more power than the 1.4 TFSI but with slightly lower fuel economy. The 1.4 TFSI COD ultra was aimed at buyers who prioritized fuel efficiency and comfort over outright performance.
Legacy
The 1.4 TFSI COD ultra powertrain has proven to be relatively reliable, although some owners have reported issues with the turbocharger and the dual-mass flywheel. Regular maintenance, including oil changes and timely replacement of wear items, is crucial for ensuring long-term reliability. In the used car market, these models are often sought after by buyers looking for a fuel-efficient and well-equipped compact sedan. The COD technology, while innovative, adds complexity to the engine, so potential buyers should be aware of the potential for increased maintenance costs compared to simpler engines. Overall, the A3 Sedan 1.4 TFSI COD ultra remains a viable option for those seeking a practical and economical premium compact car.
