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      01-11-2026, 10:53 AM   #19
jbash87
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Drives: 2006 M5, 2012 X5d, Prelude 4WS
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Quote:
Originally Posted by Bengineer330 View Post
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.
Glad someone with some actual experience on this issue can pipe in. I'm just shooting from the hip generally towards where SlowX6M is pointing
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