View Single Post
  #13  
Old 12-20-2013, 01:08 PM
Jeremy5848's Avatar
Jeremy5848 Jeremy5848 is offline
Registered Biodiesel User
 
Join Date: Mar 2006
Location: Sonoma Wine Country
Posts: 8,408
Testing EGR

Quote:
Originally Posted by VW1300 View Post
Thanks. Two more quick questions - where does the solid gasket go? The EGR still opens to let fresh air in thru the breather filter, right? Otherwise the check engine will come on. Also - does the EGR tube come off by prying up the little "ears" at the bottom which hold it into the exhaust? Just checking.
The '96 E300D (W210, OM606NA) is not "smart" enough to know that EGR has been blocked for testing purposes only. It will (mine will) not set a code unless the electrical connection at the top of the EGR valve (plug w/3 wires) is removed. Caveat: I have a very early '96 (s/n about 5000); it's possible that later in the 1996 production year Mercedes added more electronics. YMMV.

I blocked both the intake and the outlet of the EGR valve and left everything else alone. It looks perfectly stock but does nothing so the air intake pipes now stay clean.

BTW, with EGR temporarily blocked for testing purposes only, the "throttle" flap just in front of the EGR valve can also be removed. Its purpose is only to help suck more dirty exhaust through the EGR valve into the engine. Remove two screws and the flap can be pulled out.

Jeremy

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
Reply With Quote