guys i went under the car the other day, saw oil coming out ofthe sump nut and a few other places any ideas why this could be, the mechanic said it could be the crank shaft
is this a comman problem
oil leak
Moderator: martauto
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Brianmoooore
- E30 Zone Team Member

- Posts: 49360
- Joined: Mon Jan 10, 2005 11:00 pm
One thing I can tell you it won't be is the crankshaft, but apart from that, you haven't told us what engine or given any clues as to where the oil is coming from.
You need to clean everything up, and then watch to see the exact source of the leak.
You need to clean everything up, and then watch to see the exact source of the leak.
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pacerpete
- E30 Zone Team Member

- Posts: 18165
- Joined: Sun Jan 23, 2005 11:00 pm
- Location: Iver heath. South bucks.
Its a 325 M20. As Brian states, you need to get the oily areas cleaned and then look for fresh leaks.
Favourites on the M20 325 are sump gasket, oil filter housing, oil pressure switch and head gasket at the front . The pressure switch and filter housing are cheap simple repairs, the other two, less so
Favourites on the M20 325 are sump gasket, oil filter housing, oil pressure switch and head gasket at the front . The pressure switch and filter housing are cheap simple repairs, the other two, less so
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ameetgill1
- E30 Zone Regular

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- Joined: Mon Mar 26, 2012 11:00 pm
its a 3.25 cab. it appears to be more then one place. there is always resedue on the floor in the morning?
i think i slightly over filled it as wel
i think i slightly over filled it as wel
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Brianmoooore
- E30 Zone Team Member

- Posts: 49360
- Joined: Mon Jan 10, 2005 11:00 pm
The M20 engine is renowned for oil leaks - about a dozen common ones. You need to identify each one, find out what's involved in curing it, then decide whether each particular one is worth sorting or not.
