considering purchasing'00 323, noticed sell of oil after car has been driven on 2000 BMW 323i

car doesn't leak oil. can't smell oil while car is idling. only smell oil after driving and stopping at street light. dealer said it was a leaking oil pressure sending unit that leaks a little oil onto engine once pressure increases. any help on the validity of his answer?

Asked by for the 2000 BMW 323i
Hard to say with out being able to drive the car or inspect to see if oil is getting on the exhaust. Are you buying the car from that dealer or from a private party. Have a pre-purchase inspection done by a garage knowledgeable in BMW, it will be money well spent, what they find may divert you from buying a "bad car" and or what they find (lack of maintenance or repairs needed) can be used to negotiate price.
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Valve cover gasket is the big problem with this car.Had mine replaced twice.I have 295,000 miles on it and runs great.Great car!!!!