1 year ago I had an oil leak ("from the top of the engine"). They changed the manifold gasket and it was ok. Recently, after an oil change, my engine is again leaking oil (with a bad smell). What other gaskets may need replacement? My local mechanic says the oil is coming from the top of the engine. Thank you, Enrique
Oil leak on 2003 Audi A6 Quattro
by Visitor in Lake Worth, FL on April 02, 2010
ANSWER by M_Kast on April 03, 2010
If the oil is coming from the top of the engine then you most likely have a leak in the seals around the valve covers. This is not a serious condition in VERY small amounts; otherwise you must replace the valve cover gasket.
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Engine oil leaks are common from the valve cover gaskets and camshaft chain tensioner gasket.
An External oil leak may develop from the valley pan gasket (under the intake manifold) and/or the head gasket.