2004 C320 EGR problem code fault P0400 - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 08-22-2012, 11:59 AM Thread Starter
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Date registered: Aug 2012
Vehicle: 2004 C320 Silver
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Unhappy 2004 C320 EGR problem code fault P0400

hello there,
First, i would like to thank benzworld for allowing me to be added to its satisfied members who are searching for answers and giving solutions to problems with our benzs. I own a 2004 C320 sedan/2005 C240 4matic and recently had CEL with fault code P0400 diagnosed from Autozone. Before the CEL appeared I have noticed the engine started to vibrate after coming to a stop. I thought my wife refilled the wrong gas because its almost to a point where the engine is choking(no CEL came on). the symptoms just went away for several months now, then last week after replacing air filter and oil change the CEL came on. I need to know if there is a solution before replacing the EGR valve. Anyone pls send pics or pdf file that you have for a fellow member. Again thank you in advance.
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post #2 of 2 (permalink) Old 08-23-2012, 01:36 AM
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