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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Engine malfunction 3100/2A87



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      06-18-2013, 01:20 PM   #1
Chrisred
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Engine malfunction 3100/2A87

Keep randomly getting engine malfunction/limp mode even if im not pressuring the engine.

Codes: 3100 and 2A87 (outlet-Vanos variable cam control test, mechanic ).

Any thoughts?
Vanos solenoids need replacing??
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      06-18-2013, 01:25 PM   #2
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many threads about that code .
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      06-18-2013, 09:51 PM   #3
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Yes replace your exhaust vanos solenoid. Part's $100 and takes 20 min.

DIY here: http://www.e90post.com/forums/showth...ighlight=Vanos
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      06-19-2013, 08:39 AM   #4
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Should I just replace both solenoids?? Is it common that they both go??
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      06-19-2013, 08:40 AM   #5
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Quote:
Originally Posted by Chrisred View Post
Should I just replace both solenoids?? Is it common that they both go??
yes, I would do them both at once...might as well while you're in there. It's the exact same part for both, FYI
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      06-19-2013, 08:45 AM   #6
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Thx !!
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      06-19-2013, 11:38 AM   #7
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Quote:
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Thx !!
Or u can just take them out and clean them to save some money
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      06-19-2013, 11:46 AM   #8
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2006 330i  [2.83]
Yeah clean them first and see if code goes away. Even though I did not have any codes I cleaned mine about a year ago and swapped them out from top to bottom, my car has smoother idle ever since...
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      06-19-2013, 12:27 PM   #9
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How do I clean them
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      06-19-2013, 01:56 PM   #10
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Quote:
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How do I clean them
use compressed air. right in that DIY I posted. How many miles are on your car? I've heard that some people buy some time by cleaning them but honestly for a relatively cheap part that is easy to replace in your driveway I'd rather the peace of mind of knowing they're fresh.
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      06-19-2013, 06:57 PM   #11
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55k miles. I ended up just buying two new ones.
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      06-19-2013, 09:49 PM   #12
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