I would appreciate you all referring me to your favorite thermostat replacement instructions and any pictures/diagrams that could be of use (I have the one from RealOEM of the waterpump-thermostat). I saw what seems to be a very detailed set written by everycredit here
post #11. I'm hoping to have my friend who is a non-BMW tech do the work and was hoping to give him as much info to do the job as possible. As you might guess, I got an estimate from the dealer and it came in at $818 including parts and labor!!
I came into the dealer with a solidly lit SES on my '02 M5 (89K miles). They read the codes and found it to be a failed thermostat.
Here are my "symptoms":
-Solidly lit SES (stayed on for about 10 start cycles then went off, now back on)
-Temp gauge does not budge beyond the left white dot
-Hesitation upon acceleration (computer making a/f adjustments due to failed thermostat?)
-Code found by dealer--sorry don't have it!
Recommended replacement parts:
-BM11-53-1-312-287 Seal Ring
and of course
The dealer has been good to me in other ways but this price seems really high!! I did check with an alternative shop and I think they wanted in the mid 600's to do it. The friend I want to do it works on track cars so he should have a field day working on an M5
Thanks so much!
(Hey I have to tell you all that it's very embarrassing to have your 16 yr old drive your M5 and tell you it accelerates worse then his car. So yeah I really need to get this fixed!