Excessive Oil Consumption (EA888 Gen 2)
SeriousEngineFaulty piston rings on early EA888 engines (CDNB, CDNC codes) cause severe oil burning as carbon blocks the thin oil control rings.
Est. Repair Cost: £3,000–£5,000
Reliability GuideCommon Problems with the
Common Problems with the
2008 Audi A4 Mk4 (B8)
The launch year brought a modern, refined B8 to market. Pre-2012 2.0 TFSI cars are the ones to avoid unless proof of the Stage 2 piston-ring fix exists — this is the single most expensive issue on any B8.
What changed for 2008
- •Launch with 1.8 TFSI, 2.0 TFSI, and 2.0 TDI engines
- •New MLB platform with improved rigidity
- •Updated MMI system
- •Multitronic CVT and S tronic gearbox options
Common MOT watch-outs
- !EA888 Gen 2 excessive oil consumption on 2.0 TFSI
- !Timing chain tensioner failure on pre-2013 cars
- !Water pump and thermostat housing leaks
- !Multitronic CVT failures on FWD cars
5
Known Issues
3
Serious
2
Moderate
0
Minor
All Known Issues
Multitronic CVT Failure
SeriousGearbox & TransmissionFront-wheel-drive automatics use the Multitronic CVT which can judder, flare or lose drive if fluid changes were skipped or the control unit fails.
Est. Repair Cost: £1,000–£2,500
Timing Chain Tensioner Failure
SeriousEnginePre-2013 EA888 Gen 1 and Gen 2 engines have a plastic timing chain tensioner that can fail, causing chain slack and potential engine destruction.
Est. Repair Cost: £900–£1,800
Water Pump / Thermostat Housing Leak
ModerateCooling SystemThe plastic water pump and thermostat housing warp and leak coolant, a well-known weakness across the EA888 range. Some cars fail twice before 100k miles.
Est. Repair Cost: £350–£750
Electric Steering Lock Failure
ModerateElectrics & ElectronicsThe electronic steering column lock (ELV) module can fail, preventing the car from starting or unlocking the steering. A known weak point on B8 cars.
Est. Repair Cost: £300–£800
Buying Tips for 2008 Audi A4 Mk4 (B8)
- ✓CRITICAL: Demand proof of Stage 2 piston-ring work on any pre-2012 2.0 TFSI
- ✓Insist on a stone-cold start to check for timing chain rattle
- ✓Avoid FWD Multitronic cars unless service history is impeccable