1996 C-280 EGR Valve
 

Dear Friends:

I have a 1996 C-280 with intermittant drivability problems. I suspect that the EGR valve is sticking. Where is this valve located, how do I get to it, and how hard is it to replace.

Thank you,

Chuck

If the EGR system malfunctions you will get a "check engine" lamp the next time the engine is started.
What type of running problem is the engine having??

EGR PROBLEM??
 

Dear MB Doc:

The check engine light is on. The car performs fine at speed, but will not idle well. This is intermittant, but seems to be more frequent when I have been pushing it harder.

I can correct the problem by shutting the engine off for even just a second. Then it idles fine.

Where is the EGR valve located? How do I get to it?

Your assistance is much appreciated,

Chuck

Chassis 202.028 has a TSB up-grade for the EGR valve due to sticking.

They also have a flow blockage problem that you can find in the Archieves. [ DIY article by S.B ]

The blockage is more apt to bring up the CE lamp as it is a constant failure , whereas the sticking egr will sometimes not CE indicate cuz of it's intermittent condition. [ thus not having successive faults needed for ECU recognition]