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Audi
A4 Quattro
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Engine Oil Leaks on Audi A4 Quattro

Problem Description and Possible Solution

Engine oil leaks are common from the valve cover gaskets and camshaft chain tensioner gasket.

Problem Data
RepairPal Verified
Average mileage: 113,153 (56,000–206,000)
Engines affected: 1.8L 4 Cylinder Turbo, 2.0L 4 Cylinder Turbo, 2.8L V6, 3.0L V6
11 model years affected: 1997, 1998, 1999, 2000, more2001, 2002, 2003, 2004, 2005, 2006, 2007
33 people reported this problem
Comments
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Valve cover & oil filler cap gaskets are rubber, and deteriorate badly after about 120k miles. Replace when leaking, or oil will drip onto exhaust manifolds and smoke. Also replace the inlet elbow to throttle body gasket (also rubber) as it hardens and wears, causing inlet vacuum leak. This may cause a false MAF sensor code.