2008 Audi S8 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 Audi S8
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2008 Audi S8 ProblemsDecreased Power and Fuel Economy from Carbon Buildup
The 2007-2016 Audi S8 4.0TFSI and 5.2FSI is subject to carbon buildup inside the engine causing power loss, check engine light, and a rough idle. In normal vehicles, the engine is cleaned by the gasoline flowing through, however, these cars use direct injection so gasoline is rerouted away from 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 S8 RecallsSunroof Glass Is Not Secured To The Sunroof Frame
The sunroof glass may not be secured properly to the sunroof frame. Dealers will install additional adhesive between the sunroof glass and frame free of charge to resolve the concern.