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      01-10-2026, 01:11 PM   #17
Bengineer330
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Drives: Le Mans Blue 2011 E92 M3
Join Date: Oct 2014
Location: Genesee, WI

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You can absolutely diy the lower CCV hoses. Passenger side is easiest. Drivers side to make it easier I would suggest finding someone with gorilla strength midget hands. Lol. But in all seriousness loosen the coolant reservoir and you can shove your hand down there and get it.

I also had the same exact experience. Replaced everything: plugs, coils, CCV hoses, pre and post O2 sensors. Still had the fault. As terrible as it sounds mine eventually went away after about 500miles after replacing the O2 sensors.
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