Hey I'm new to the forum. Great to be here, lots of smart folks on this site. Anyway I have a 2k 740il and it is burning oil like krazy.. I just don't get it. Any suggestions? I need help. I only have
97, 000 miles on her. Any idea's? Please help.
If you are unsure of service history get Insp2 service done by who ever you trust. Get them to give special attention to breathers and CCV devices. If still burning oil do compression check..
- How to test the crankcase ventilation (aka CCV, CVV, PCV, CPV, & OSV) pressure regulating valve system (1) & a video of oil separator quacking chubacca noise (1) & vacuum leaks due to holes in one or more of the five CCV hoses (1) (2) (3) or frozen or torn diaphragms (1) & a clogged CCV (1) causing pressure in the crankcase and smoke in the exhaust necessitating CCV system overhaul (BavAuto M54, M54,M54,M54,M54, & M54 observations) (M52,M52) (M52TU) (M62,M62) ('99 528i) ('98 528i); usually replaced with the insulated CCV upgrade (1) & sorely needed clarification on how the M54 CCV vacuum port works on the M52 CCV valve connection to the fuel pressure regulator connection (1) & how to do a CCV delete (1)
Pull you dip stick out with the car running. Do you hear a lot of slurping sound? Do the same with oil cap and see if sound/idle changes. Id say the CCV myself. Take a good look a Bluebees links. There always a good source of info.
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