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
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