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Oil leak 318i M40
Posted: Tue Jun 24, 2008 10:27 pm
by chu346
My engine is loosing oil but i'm not sure where from
I can't see any real oil leaks on the engine, but i'm going from max-min on the dipstick in 3 weeks.
What are the usual places where these engines loose oil?
318i M40
Re: Oil leak 318i M40
Posted: Wed Jun 25, 2008 3:44 am
by dMh
well you could check the upper and lower part of your oil pan, you could also check the valve cover (however quite unlikely) or the head gasket (very unlikely as if the head gasket is damaged you'll get lost compression coupled with smoke from your exhaust). my best bet is the upper and lower oil pan.
Re: Oil leak 318i M40
Posted: Wed Jun 25, 2008 3:03 pm
by chu346
Oil pan and valve cover look good.
Re: Oil leak 318i M40
Posted: Thu Jun 26, 2008 3:50 am
by dMh
really? no oil leaking from the oil pan? no black stuff??
that's odd, does your exhaust gives out smoke? if it does try a compression check
oh, when you mean oil pan, was it the lower part or the upper part?
Re: Oil leak 318i M40
Posted: Tue Jul 01, 2008 3:08 pm
by chu346
Just noticed I got a puff of smoke on start up this morning from cold, but not again for the rest of the day when running or start up.
Oil pan all over is fine
Re: Oil leak 318i M40
Posted: Thu Jul 03, 2008 6:05 pm
by chu346
bump
Re: Oil leak 318i M40
Posted: Fri Jul 04, 2008 10:58 am
by dMh
in that case try checking the oil filter and replace o-ring afterwards.
also, is your gearbox sides seeping with oil? oil could leak from either the front or rear crank seals (if from rear crank, oil could seep on the gearbox), and also is your fan cover oily?
this is really odd...
oh yea! one vital question: do you see oil under the engine when you leave the car for a day or in the morning? if its not, i think its going somewhere else