Hi guys, I bought this M5 5 months ago,
And it was driving fine, then like two months ago i got SES light, thermostat.
Last Wednesday I replaced my thermostat with new one from FCP with all related O-rings (7)
, it started leaking next day, took it back apart and found one o-ring got mushed and snapped in half, not a big deal, replaced it with new one, I ordered extra since I new it is common, but this time I took intake plenum and everything under and went and replaced O-rings on heat exchanger too,
Sure I got coolant down to the crank so I changed oil as well, now (I don't have any milkshake under oil filling cap) yesterday, next morning after I put everything back I started it up, it was sitting in a garage with engine running for 10 minutes, and then I went to work, as soon as I pulled out of my driveway I noticed very heavy cloud behind me, it was damn heavy, well .
Came to work, opened up hood and noticed that there is oil dripping from MAFs (between MAF and filter) took plenum back apart since I thought I might forgot something,
Everything was fine, put it back together and it was fine that evening (yesterday)
This morning it did the same thing and it died twice on cross lights until oil temp reached 1/3
What the hell is going on?
It never had smoke in 2000 miles I drove in it since I bought it