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Common Oil Leak Areas - Engine Bay - 99 A6


Hudson
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Quite a few odds and ends but usually near the back of the engine. The cam adjuster seals leak but usually only badly if the crankcase breather is blocked.

I would guess it is actually leaking from the oil cooler/filter assembly on the passenger side but the running across on the belly-pan and then dripping on the drivers side.

If it is the cooler seals they are easy to replace.

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Recently had mine serviced and I was complaining it was a bit oil hungry. Turned out nothing more than the oil filter was not on tight enough which cause a little leak on regular runs and also a few drops on the driveway after returning home each time.

One "problem" is I park another car there from time to time which is more likely to drop oil and so I didn't put two and two together. I put a new filter on (tightly) and both issues seem to have disappeared.... tongue.gif

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