smokes from cold??!! 325i

Post Wed May 25, 2005 5:59 pm

it only occurres when it is started from cold like when i leave work it really pisses me off as i get the piss taken outta me at work!! but when its up to temp it seems fine it idles a bit shit when u first start it?? Any suggestions??

Post Wed May 25, 2005 6:03 pm

Most likley valve stem oil seals.

Post Wed May 25, 2005 6:05 pm

is that an expensive job??

Post Wed May 25, 2005 6:20 pm

Can't say what the cost is, but if this is the problem then more than likley the head has to come off to do the job. Havn't done these on a six cylinder yet but most other engines require the head to come off, the valves to be removed, the seals renewed, the valves refitted and lapped in, and the head refitted with new head gasket and usually a new timing belt if the old one has a few miles on it. Maybe someone else on here has had the job done and can give an accurate price. Living in southern Ireland the garages around here use a complicated priceing structure for labour, think of a figure and double it !

Post Wed May 25, 2005 6:30 pm

I would guestimate a job would cost you about Ãƒ”šÃ‚£250+

Post Wed May 25, 2005 6:43 pm

most m20's smoke from cold. so long as its white and NOT blue or black/brown then you should ok. not sure if changing the stem seals would make that much difference, if so it may still not stop it totally.

stem seals often give off smoke on overrun. accelerate hard (when warm) upto about 6000RPM and then back right off tghe throttle, ask someone to follow you when you do this and see if there is any smoke comes out then. if not then there might not be anything wrong with the stem seals.

hope that helps a bit.