Hi i have a 2006 750li with 97000 kms it blows blue smoke when idling and initial accelleration but once over 20 kms an hour no more blue smoke does anyone no what could be the main cause of this
http://www.bimmerforums.com/forum/sh...Where-To-Start
http://www.bobistheoilguy.com/forums...Number=3137771
http://www.bimmerfest.com/forums/sho...=686871&page=3
http://www.bimmerfest.com/forums/sho...d.php?t=626725
I would start with crankcase breather valves https://www.youtube.com/watch?v=qTptfhPJBOs
http://www.fixya.com/cars/t13522294-...ite_smoke_when
Shogun tricks and tips for the E32 series are HERE!
Valve stem seals. Guaranteed
ASE and BMW Master Certified Technician
In case of my M70 V12 the problem was solved by replacing the crankcase breather valves. Here explained http://bmwe32.masscom.net/sean750/vc.../VCVvalves.htm
Shogun tricks and tips for the E32 series are HERE!
The v12 is a completely different animal. It doesn't suffer the same fate of leaking valve stem seals.
ASE and BMW Master Certified Technician
Valve Stem Seals 100% ... VERY common problem on these engines.
1995 BMW M3 5 Speed Coupe, 3.0 S50B30, Cosmos Black/Hellgrau Vader, Shrick Camshafts, New Vanos
Dinan Cold Air Intake, Ireland Engineering Front and Rear Strut Bar, Turner Motorsport Chip, EWS Delete
BBS RC 303 Genuine, 24 lb Injectors, Tuned for 93 Octane, StopTech Rotors, Bilstein Shocks, H&R Race Springs
Continental DWS 06, Eibach Front and Rear Sway Bars, Turner Motorsport Rear Camber Arms, TM RTABs.
2006 750Li 80k miles. first post. Been reading all posts I could find on topic.Smokes heavily after extended idle. Does not smoke while driving. Very little oil consumption since I never let it idle.ccv's , OSV, cyclone, Valve guides seals ? How do you tell?CCVs look intact, I removed the hose from the CCV's, plugged the intake and ran it. Smoke from passenger side only at CCV. After 5 minute idle = heavy smoke from tailpipe.Drive it 1/4 mile and smoke is gone. Doesn't misfireNo CELRuns perfect. Runs strong.Is there a way to positively diagnose this or is it best guess?I don't want to but will have no issue replacing VGS"s. Went to UTI and ASE cert tech most of my life. Not very familiar with troubleshooting this one. Please help. MikeThanks for you're time and advice.Mike LintzDavenport Fire Dept
Last edited by fireman614; 07-16-2018 at 10:17 PM.
What parts are needed to change out the valve stem seals ???
Check pcv valves on valve covers then change your oil to 10w60.
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