View Single Post
Old 03-07-2003, 12:15 PM
suginami suginami is offline
Join Date: Dec 2001
Location: Southern California, U.S.A.
Posts: 8,508
Yes, I would disconnect the tube both at the EGR valve and at the intake manifold. As Stevebfl has stated, the build-up is always at the opening of the intake manifold.

I cleaned mine out and replaced the egr valve. There was a TSB regarding the old valves sticking, and the part # changed.

My CE light still came on, so I actually replaced the metal tube.

Donnie (Benzmac) has also posted that he no longer reams these pipes out. It takes too much time, I guess, and it is more cost effective to just replace the tube.

BTW, I've always wondered where all that carbon goes if the pipe isn't removed. I guess it just gets sucked into the intake manifold...
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
Reply With Quote