Thread: Service
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      02-14-2012, 09:41 PM   #5
druheezy
Peon and General Shoveabout
 
Drives: 2008 E90 M3
Join Date: May 2011
Location: San Francisco, CA

Posts: 80
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Plugs should be covered by Maintenance Plan 4/50. However, Plugs are only every 30-35K. If you have the loud banging noise when the Diff is cold, there's a chance that Diff fluid was not changed at 1200 mile service, so a Diff fluid renew wouldnt be the worst thing in the world and it should be covered by Warranty, in fact. There's a bulletin on another post about the Diff fluid issue.
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