The Audi A6 Sedan (4G, C7 facelift) 1.8 TFSI ultra S tronic represents a significant iteration within the C7 generation of Audi’s flagship executive sedan, produced from 2014 to 2016. Positioned as a mid-range offering, this variant aimed to balance performance, fuel efficiency, and affordability within the A6 lineup. It was designed to appeal to buyers seeking a comfortable and technologically advanced vehicle without the higher price tag of the more powerful engine options. The “ultra” designation signified Audi’s efforts to reduce weight and improve fuel economy through various engineering refinements.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Sedan (4G, C7 facelift 2014) |
| Type (Engine) | 1.8 TFSI ultra (190 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) | 7.1-7.2 l/100 km (33.1 – 32.7 US mpg, 39.8 – 39.2 UK mpg, 14.1 – 13.9 km/l) |
| Fuel consumption (extra urban) | 5-5.2 l/100 km (47 – 45.2 US mpg, 56.5 – 54.3 UK mpg, 20 – 19.2 km/l) |
| Fuel consumption (combined) | 5.7-5.9 l/100 km (41.3 – 39.9 US mpg, 49.6 – 47.9 UK mpg, 17.5 – 16.9 km/l) |
| CO2 emissions | 133-138 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.9 sec |
| Acceleration 0 – 62 mph | 7.9 sec |
| Acceleration 0 – 60 mph | 7.5 sec |
| Maximum speed | 233 km/h (144.78 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.3 kg/Hp, 121 Hp/tonne |
| Weight-to-torque ratio | 4.9 kg/Nm, 203.8 Nm/tonne |
| Power | 190 Hp @ 4200-6200 rpm |
| Power per litre | 105.7 Hp/l |
| Torque | 320 Nm @ 1400-4100 rpm (236.02 lb.-ft. @ 1400-4100 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EA888 / CYGA |
| Engine displacement | 1798 cm3 (109.72 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82.5 mm (3.25 in.) |
| Piston Stroke | 84.1 mm (3.31 in.) |
| Compression ratio | 9.6:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection and Multi-port manifold injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4.7 l (4.97 US qt | 4.14 UK qt) |
| Coolant | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1570 kg (3461.26 lbs.) |
| Max. weight | 2150 kg (4739.94 lbs.) |
| Max load | 580 kg (1278.68 lbs.) |
| Trunk (boot) space – minimum | 530 l (18.72 cu. ft.) |
| Trunk (boot) space – maximum | 995 l (35.14 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Max. roof load | 100 kg (220.46 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 | 85 kg (187.39 lbs.) |
| Length | 4933 mm (194.21 in.) |
| Width | 1874 mm (73.78 in.) |
| Width including mirrors | 2086 mm (82.13 in.) |
| Height | 1455 mm (57.28 in.) |
| Wheelbase | 2912 mm (114.65 in.) |
| Front track | 1627 mm (64.06 in.) |
| Rear (Back) track | 1618 mm (63.7 in.) |
| Front overhang | 930 mm (36.61 in.) |
| Rear overhang | 1091 mm (42.95 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle (turning diameter) | 11.9 m (39.04 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 multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent on trapezoidal lever, Transverse 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 R17 |
| Wheel rims size | 8J x 17 |
Powertrain & Engine Architecture
The heart of the A6 1.8 TFSI ultra S tronic is the EA888 engine, specifically the CYGA code variant. This 1.8-liter inline-four cylinder engine utilizes direct fuel injection combined with multi-point manifold injection, optimizing both power delivery and fuel efficiency. A single turbocharger with an intercooler provides forced induction, boosting output to 190 horsepower and 320 Nm (236 lb-ft) of torque. The engine features a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to its responsive nature. The S tronic transmission is a seven-speed dual-clutch transmission (DCT) known for its quick and smooth gear changes. This transmission allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles or the gear selector.
Driving Characteristics
The 1.8 TFSI ultra S tronic offered a refined driving experience. While not as overtly sporty as the higher-powered A6 variants, it provided ample power for everyday driving and highway cruising. The S tronic transmission contributed to brisk acceleration, with a 0-60 mph time of around 7.5 seconds. The gear ratios were tuned for a balance between fuel economy and responsiveness. Compared to the manual transmission versions of the same engine, the S tronic offered smoother shifts and reduced driver fatigue. However, some enthusiasts found the S tronic less engaging than a traditional manual gearbox. The “ultra” designation meant weight reduction measures were implemented, which subtly improved handling and agility.
Equipment & Trim Levels
The 1.8 TFSI ultra S tronic typically came standard with a generous array of features, including Audi’s Multi Media Interface (MMI) infotainment system, leather upholstery, tri-zone automatic climate control, and a suite of safety features like ABS, electronic stability control, and multiple airbags. Optional extras included features like a navigation system, premium sound system, parking assistance, and various driver-assistance technologies. Interior trim levels varied, with options for different wood or aluminum inlays. The standard seats provided good support and comfort, with optional sport seats available for a more bolstered feel.
Chassis & Braking
The A6 1.8 TFSI ultra S tronic utilized an independent multi-link suspension at the front and an independent trapezoidal lever suspension at the rear, providing a comfortable and controlled ride. A transverse stabilizer bar was fitted to both axles to reduce body roll during cornering. The braking system consisted of ventilated discs at the front and solid discs at the rear, providing adequate stopping power for the vehicle’s weight and performance. ABS (Anti-lock Braking System) was standard, enhancing safety in emergency braking situations.
Market Reception & Comparison
The A6 1.8 TFSI ultra S tronic was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. However, some reviewers noted that the engine lacked the outright performance of the larger displacement engines in the A6 lineup. Compared to the 2.0 TFSI and 3.0 TDI variants, the 1.8 TFSI offered a more affordable entry point into the A6 range, but at the expense of some performance. Fuel economy was a key selling point, with the 1.8 TFSI ultra achieving combined fuel consumption figures of around 40 mpg (US).
Legacy
The EA888 1.8 TFSI engine, in general, has proven to be a relatively reliable powertrain when properly maintained. The S tronic transmission, while sophisticated, can require more frequent servicing than a traditional automatic transmission. Common issues include occasional mechatronic unit failures and the need for fluid changes at recommended intervals. In the used car market, the A6 1.8 TFSI ultra S tronic represents a good value proposition for buyers seeking a comfortable, well-equipped, and relatively fuel-efficient executive sedan. Its blend of practicality and refinement continues to make it a popular choice among used car buyers.
