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Old 11-13-2012, 04:35 PM
Doktor Bert's Avatar
Doktor Bert Doktor Bert is offline
Der Sturm Uberdoktor
Location: Palm Springs
 
Join Date: Oct 2012
Posts: 872
Mein Auto: BMW 525i
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.....
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Last edited by Doktor Bert; 11-13-2012 at 04:38 PM.
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