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  1. DIY: Do It Yourself
    Ok so I'm looking to hear if anyone has any info. The M56 SULEV engine has a hydrocarbon filter built into the air box as a part of the emissions system. This to me says "restriction" removing it would be simple enough however would mean you can not replace it in the future if needed. The one in...
  2. E46 General
    I (evidently along with many others) had the coolant expansion tank crack badly. I removed the air cleaner to see the problem but decided to let a local mechanic install the parts I obtained. I drove the car into the street to let AAA tow it, as I didn't want to drive it with a serious water...
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