bmw n62 vanos control issues
2166 Views 4 Replies Latest reply: 2017-09-27 20:37:56
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Level 3
(55) points
Hey folks, got an 04 545i with re-occuring vanos control issues for both exh and int cams, bank 1 (codes 2731, 27BB). The car does begin to run rough intermittantly and set these codes along (sometimes) with misfire codes on bank 1. I have eliminated the possibility of vanos control valves and misfires caused by plugs/coils. The data shows the vanos positions as follows:int position cyls 1-4 aprox 119degreesint position cyls 5-8 approx 100degreesexh position cyls 1-4 approx 119degreesexh position cyls 5-8 approx 119degreesvanos adaptation intake 1-4 69dergreesvanos adaptation intake 5-8 129degreesvanos adaptation exh 1-4 66degreesvanos adaptation exh 5-8 71degreesAny ideas from you fellow bmw guys? The 1-4 intake seems to be the one that gets out of whack.thanks -
Level 2
(38) points
Chech the cattalic converter i think its stuck. -
Level 1
(3) points
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Level 3
(55) points
Just to let others know (sorry for the delay) the vanos control problems were caused by the vanos units themselves. Did not find any issues visually with them, but new ones cured the problem.Kirk (Best results Car Care) -
Level 10
(7578) points
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