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      12-09-2012, 09:19 AM   #21

Drives: '15 X3 28d
Join Date: Oct 2012
Location: Kitchener, Ontario, Canada

iTrader: (1)

Originally Posted by GreekboyD View Post
I wouldn't doubt it man. Lots of people felt my air intake manifold didn't have to be replaced and could have easily just been cleaned out. The dealer insisted.

I wasn't going to
I have a buddy that's a BMW master tech and him and I discussed this exact thing the other day. I was worried about my car and the carbon build up and asked him whether I could clean my intake manifold as preventative maintenance. I guess they attempted this repair at one point but he indicated that the manifold is complicated enough with the runners and passages that they struggled trying to figure out a way to get it completely clean. They ended up getting it cleaned in a large ultrasonic cleaning tank and said that worked. That said, BMW must not endorse this method as they have been covering replacements of them since.