2013 Audi A4 Quattro Repair and Maintenance Costs
A guide to repairs, service, and maintenance costs for your 2013 Audi A4 Quattro
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2013 Audi A4 Quattro ProblemsDecreased Power and Fuel Economy from Carbon Buildup
The 2006-2016 Audi A4 Quattro uses FSI and TFSI 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, since the A4 Quattro uses direct injection, 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.
2013 Audi A4 Quattro QuestionsSome leak when it was parked then at evening I check no leaks What could it be (1 answer)
Leak when it was parked then later that evening I checked leak stopped
What caused it