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Old 04-17-2012, 06:56 PM   #34
Z4MC
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Join Date: Aug 2011
Location: ottawa
Posts: 347
It's not common. It's just that people post the problem on the forum in technical sections, so when you research the issue it looks like every s54 has a problem. I have seen numerous e46 m3's in the past years that have been abused and have high milage with no vanos issues. Just make sure to check valve clearances regularly and keep an eye on things. Don't let the local BMW dealership tell you a valve adjustment isn't necessary because the motor sounds fine lol
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