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Old 11-14-2012, 01:53 AM
autoque autoque is offline
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Location: Canada, etc
Join Date: Jul 2008
Posts: 181
Mein Auto: BMW
Originally Posted by Doktor Bert View Post
Not a VANOS expert, but I did have a colleague with an E36 that forgot to install the drive helix on the VANOS and when the engine was started it would bend the exhaust valves in #1, #2, & #3 cylinders only. That took a bit of study to find the culprit!!! I am sorry to say it took two sets of exhaust valves for him to find the problem....:-(

I know that VANOS seals can cause cold idle roughness.....
Woudn't the car store fault codes for something like this?
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