'92 525i Oil Problem...Where's it going? [Archive] - Bimmerfest - BMW Forums

: '92 525i Oil Problem...Where's it going?

09-06-2008, 12:13 PM
I need some help here. My 525i is constantly needing between 1/2 and 3/4 of a quart of oil ever couple days. I have checked everything I can think of. There's no indication of a blown head gasket or leaks! I pulled the spark plugs and they where oil fouled but not too bad. However there was little pools of oil in each plug seat.

Any suggestions?

09-06-2008, 01:32 PM
the pooling in the spark plug well is due to the valve cover gasket going bad (there are 3 gaskets, the big outer one and two (1 for every 3 plugs)for the spark plug well) but I would not think that would cause 1/2 quart of oil every few day unless it's a hugh pooling going on. Is there smoke coming out of the exhaust? if so then you burning oil (may be thru worn rings?) I'm assuming there is no oil puddle on the ground.
You should eventually replace these seal as oil on the spark plug boot if large enough pool is a bad thing as it will eventually go between the plug and coil and you will short out.

09-06-2008, 10:51 PM
time for a complete tune up?