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Old 10-04-2012, 06:01 PM
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fun2drive fun2drive is offline
BMWCCA 149159
Location: Panhandle of Florida
 
Join Date: Nov 2005
Posts: 2,621
Mein Auto: 335 vert//M3/4/ 13Outback
54K miles mine is a 3/2007 and ZERO issues.
I do however know that this is a DI engine and will coke the valves eventually. However there is a better PVC valve that is sold
http://www.n54tech.com/forums/showpo...&postcount=190
which is reported to not allow oil fumes to bleed through vs a catch can.
So I will do a DIY and do the valves and new PVC when needed and most likely not have much of an issue.
When you run the holey crap out of this engine then back off you put oil fumes into the engine which can bleed through and end up carboning the intake valves.
I have read some about an added injector for the purpose of keeping the intake valves clean.
GM does not have intake valve issues because they have a solution.
However Audi, VW and others to include BMW do have this issue.

I will keep my BMW most likely 12 years or so and have no issue with this car being 1 1/2 years out of warranty...
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