The Audi A4 (B8 8K) 1.8 TFSI with the Multitronic transmission represents a significant iteration in the lineage of Audi’s popular executive sedan. Produced from January 2008 to 2011, this variant occupied a key position in the B8 A4 range, offering a balance between performance, fuel efficiency, and affordability. It was positioned as a step up from the base 1.6-liter models available in some European markets, while remaining more accessible than the higher-performance 2.0 TFSI and 3.2 FSI options, as well as the diesel-powered TDI variants. The B8 generation A4, built on the Volkswagen Group’s PL46 platform (also known as the A4/A5/Q5 platform), aimed to improve upon its predecessor with enhanced refinement, technology, and driving dynamics.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 (B8 8K) |
| Type (Engine) | 1.8 TFSI (120 Hp) Multitronic |
| Start of production | January, 2008 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 9.6 l/100 km (24.5 US mpg, 29.4 UK mpg, 10.4 km/l) |
| Fuel consumption (economy) – extra urban | 6.3 l/100 km (37.3 US mpg, 44.8 UK mpg, 15.9 km/l) |
| Fuel consumption (economy) – combined | 7.5 l/100 km (31.4 US mpg, 37.7 UK mpg, 13.3 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 10.8 sec |
| Acceleration 0 – 62 mph | 10.8 sec |
| Acceleration 0 – 60 mph | 10.3 sec |
| Maximum speed | 191 km/h (118.68 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 12.1 kg/Hp, 82.5 Hp/tonne |
| Weight-to-torque ratio | 6.3 kg/Nm, 158.1 Nm/tonne |
| Power | 120 Hp @ 3650-6200 rpm |
| Power per litre | 66.7 Hp/l |
| Torque | 230 Nm @ 1500-3650 rpm (169.64 lb.-ft. @ 1500-3650 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EA888 / CDHA |
| 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 |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4.6 l (4.86 US qt | 4.05 UK qt) |
| Kerb Weight | 1455 kg (3207.73 lbs.) |
| Max. weight | 2055 kg (4530.5 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 962 l (33.97 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Length | 4703 mm (185.16 in.) |
| Width | 1826 mm (71.89 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.) |
| Drag coefficient (Cd) | 0.273 |
| Minimum turning circle | 11.4 m (37.4 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 | automatic transmission Multitronic |
| 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 | 225/55 R16: 225/50 R17 |
| Wheel rims size | 7.5J x 16: 7.5J x 17 |
Powertrain & Engine Architecture
At the heart of the A4 1.8 TFSI Multitronic lies the EA888 engine, specifically the CDHA variant. This 1.8-liter, inline-four cylinder engine utilizes direct fuel injection (FSI) and a single turbocharger with an intercooler to deliver a respectable 120 horsepower and 169.64 lb-ft of torque. The engine’s design emphasizes efficiency and responsiveness, with the turbocharger providing a boost in power across a broad RPM range. The EA888 engine family is known for its robust construction and relatively straightforward maintenance. The Multitronic transmission, a continuously variable transmission (CVT), was Audi’s proprietary solution offering smooth, stepless gear changes. Unlike traditional automatic transmissions with fixed gear ratios, the Multitronic uses a chain-driven system to provide an infinite number of ratios within its operating range, optimizing engine efficiency and responsiveness.
Driving Characteristics
The 1.8 TFSI Multitronic A4 offered a comfortable and refined driving experience. While not overtly sporty, the engine provided adequate power for everyday driving situations. Acceleration from 0-60 mph took around 10.3 seconds, and top speed was limited to 118.68 mph. The Multitronic transmission contributed to smooth acceleration and minimized shift shock. Compared to the six-speed manual transmission available on other A4 variants, the Multitronic prioritized comfort and ease of use over outright performance. The manual transmission offered a more engaging driving experience, while the 2.0 TFSI models provided significantly more power and quicker acceleration. The Multitronic’s programming often favored fuel economy, sometimes resulting in a slight delay in response when requesting sudden bursts of acceleration.
Equipment & Trim Levels
The A4 1.8 TFSI Multitronic typically came standard with features such as air conditioning, power windows, power locks, and a basic audio system. Higher trim levels, such as the Attraction and Ambition packages, added features like alloy wheels, upgraded audio systems, parking sensors, and leather upholstery. Optional extras included a sunroof, navigation system, and advanced driver-assistance systems. Interior upholstery was typically cloth, with leather options available as an upgrade. The dashboard layout was clean and functional, with a focus on ergonomics and ease of use.
Chassis & Braking
The B8 A4 featured a fully independent suspension system, with multi-link setups at both the front and rear. This provided a comfortable ride and good handling characteristics. The 1.8 TFSI models typically came equipped with ventilated front disc brakes and solid rear disc brakes. Anti-lock braking system (ABS) was standard. The suspension was tuned to prioritize comfort, but still offered a reasonable level of control in corners. Stabilizer bars were included at both ends to reduce body roll.
Market Reception & Comparison
The Audi A4 1.8 TFSI Multitronic was generally well-received by automotive critics. It was praised for its comfortable ride, refined interior, and fuel efficiency. However, some critics noted that the engine lacked the punch of the 2.0 TFSI models. Fuel economy was a strong point, with combined figures around 31.4 US mpg. Compared to the 2.0 TFSI, the 1.8 TFSI offered a lower purchase price and slightly better fuel economy, but at the expense of performance. The 1.8 TFSI was often seen as a sensible choice for buyers who prioritized comfort and efficiency over outright speed.
Legacy
The EA888 1.8 TFSI engine and Multitronic transmission have proven to be relatively reliable powertrains, although the Multitronic transmission requires regular maintenance, including fluid changes, to ensure longevity. The Multitronic, while smooth, is known to be more expensive to repair than traditional automatic transmissions. Today, used examples of the A4 1.8 TFSI Multitronic are readily available and represent a relatively affordable entry point into the Audi brand. These vehicles continue to offer a comfortable and refined driving experience, making them a popular choice for buyers seeking a well-rounded executive sedan.
