Electrical System Related Problems of the 2009 Mercedes Benz E Class

Table 1 shows one common electrical system related problems of the 2009 Mercedes Benz E Class.

Table 1. Electrical System related problems of Mercedes Benz E Class

Problem Category	Number of Problems
Software problems	1

Software problem

I purchased a 2009 mercedes e320 bluetec vehicle on December 10, 2008 with 18 miles on the odometer. January, 2009 the check engine light stayed on and the dealer replaced an oxygen sensor. The car had approximately 2000 miles. At 5000 miles, the check engine light stays on. The dealer informs after another diagnosis that the problem is the software and a patch has not been developed for the 2009 models. At this time they can determined when a fix will be ready. They say the car is safe to drive.

Electrical System related problems in other Mercedes Benz E Class model year vehicles:

Underhood Wiring problems of the 1996 Mercedes Benz E Class
Underhood Wiring problems of the 2004 Mercedes Benz E Class
Trunk Wiring problems of the 1996 Mercedes Benz E Class
Wiring problems of the 1996 Mercedes Benz E Class
Wiring problems of the 1997 Mercedes Benz E Class
Starter Relay problems of the 1998 Mercedes Benz E Class
Ignition problems of the 1998 Mercedes Benz E Class

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☘ E Class Service Bulletins

⚑ E Class Safety Recalls

☤ E Class Defect Investigations