2008 Audi A4 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 Audi A4
Verified by mechanics, reported by drivers like you
2008 Audi A4 ProblemsEngine Oil LeaksDecreased Power and Fuel Economy from Carbon Buildup
The 2006-2017 Audi A4 uses the 2.0FSI, 2.0TFSI, and 3.2FSI direct injection engines. These engines are subject to carbon buildup in the intake system which can cause power loss, OBD codes and a check engine light, and a rough idle. In normal engines, the engine is cleaned by the gasoline flowing through the injectors and into the intake system, however, the A4 uses direct injection so gasoline does not flow through common carbon buildup areas.
The solution is to remove the intake manifold and professionally clean the intake manifold, intake ports on the cylinder head, and the intake valves. This may need to be done in as few as 20,000 miles.
Premature wear in various multi-link suspension components can cause noises that are difficult to diagnose. Worn suspension parts can also cause uneven tire wear and create steering alignment problems.
2008 Audi A4 QuestionsHow do I reset my slip indicator dashboard light? (1 answer)
It came on yesterday, when I was driving on a heavily cendered road, but it did not go off after I got back on good pavement.
when to change engine coolant
2008 Audi A4 RecallsPassenger Frontal Air Bag Inflator Ruptures On Deployment
The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.
The air bag control unit may corrode and fail. Dealers will replace the air bag control unit free of charge to resolve the concern.
The driver's frontal air bag inflator may deploy the air bag with excessive pressure, resulting in the inflator rupturing and causing metal debris to be sprayed onto vehicle occupants. Dealers will replace the driver's frontal air bag inflator free of charge to resolve the concern.