Vanos Issues after Oil Housing Replacement-FIXED

Boland01 · 05-20-2017, 09:18 AM

My son's 2008 335i E92 oil filter housing starting leaking at 52K miles. So we went ahead and changed the gaskets, did an oil change and walnut blasted the valves since we had to remove the intake.

All went well until he went to start the car. When he did he got multiple cylinder misfires as well as vanos codes. Resetting the codes and trying again didn't help.

We ended up pulling both vanos solenoids, cleaning them and reversing them. After that the car now runs and idles better than ever.

I just wanted to post this in case anyone runs into the same issue. I wish I knew what the root cause was chance or what we did but at least the fix was simple.

335e92tx · 05-20-2017, 11:53 AM

good deal.

N54POWR · 05-23-2017, 01:56 AM

Same exact thing happened to me. Same fix.

!LEFTCOAST! · 05-23-2017, 02:28 AM

had the same thing happen as well.

Boland01 · 05-23-2017, 08:13 AM

Thanks all. Sounds fairly common. Wish I knew why.

05-20-2017, 09:18 AM	#1
Boland01 Lieutenant 152 Rep 460 Posts Drives: 2010 535ix, 2008, 2007 335i Join Date: Sep 2013 Location: Magnolia, TX iTrader: (0)	Vanos Issues after Oil Housing Replacement-FIXED My son's 2008 335i E92 oil filter housing starting leaking at 52K miles. So we went ahead and changed the gaskets, did an oil change and walnut blasted the valves since we had to remove the intake. All went well until he went to start the car. When he did he got multiple cylinder misfires as well as vanos codes. Resetting the codes and trying again didn't help. We ended up pulling both vanos solenoids, cleaning them and reversing them. After that the car now runs and idles better than ever. I just wanted to post this in case anyone runs into the same issue. I wish I knew what the root cause was chance or what we did but at least the fix was simple.
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05-20-2017, 11:53 AM	#2
335e92tx ahat 1082 Rep 2,594 Posts Drives: Was '07-335e92 - Now '13-335IS Join Date: Mar 2008 Location: Texas iTrader: (6)	good deal. __________________ '13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos. https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
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05-23-2017, 01:56 AM	#3
N54POWR Private First Class 52 Rep 165 Posts Drives: 2011 335is Join Date: Jun 2013 Location: Malibu, California iTrader: (0) Garage List 2011 335is [8.66]	Same exact thing happened to me. Same fix.
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05-23-2017, 02:28 AM	#4
!LEFTCOAST! Captain 187 Rep 884 Posts Drives: E92-SG-335i Join Date: Jan 2012 Location: SO.CAL 91750 iTrader: (21)	had the same thing happen as well.
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05-23-2017, 08:13 AM	#5
Boland01 Lieutenant 152 Rep 460 Posts Drives: 2010 535ix, 2008, 2007 335i Join Date: Sep 2013 Location: Magnolia, TX iTrader: (0)	Thanks all. Sounds fairly common. Wish I knew why.
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