Quote:
Originally Posted by bornleo369
@Sophisticated Redneck
Thanks for your advice.
Right now I will tell the technician to change coils and change the Vanos bolts and see if the check engine light and that ENGINE REDUCED POWER goes away.
As I mentioned before, i am just assuming it may be those bolts.
Please see the thread for vanos bolt shearing.
http://www.carproblemzoo.com/bmw/x5/...e-problems.php |
Quote:
Originally Posted by bornleo369
@Sophisticated Redneck
Thanks for your advice.
Right now I will tell the technician to change coils and change the Vanos bolts and see if the check engine light and that ENGINE REDUCED POWER goes away.
As I mentioned before, i am just assuming it may be those bolts.
Please see the thread for vanos bolt shearing.
http://www.carproblemzoo.com/bmw/x5/...e-problems.php |
Ty for the link, so the Vanos bolt recall issues is actually on the N55 engine (X5 35i models. You have the N63 and it doesn't have that issue. If the bolt did sheer, it would usually cause major engine damage and would not run at all.
What you might have the tech check though is the Cam timing as it is possible the adjuster is off and adjuster itself, I have mine torn down at the moment (well for almost a month now thanks to work/life) so I went out and checked out the Vanos system actually works. Below are some pics.. You can see how in the head where the solenoids go there is a central oil feed port and then two side ports that run up to the camshaft bearing journal, here you can see how the cam has oil seal rings and internal passageways that direct the oil flow to the central hub in the cam where the cam adjusters are. I cant see how metal shavings from the chain could every reach the solenoids as it would get filtered first, I can see how metal shavings from a failed cam adjuster could possibly work its way back to the solenoid.
As far as I know there is a internal test the BMW tech can run on the Vanos system. I would be highly suspect of the cam timing/ cam adjuster itself.