Mercedes Benz E63 owners have reported 1 engine and engine cooling related problems since 1996. Table 1 shows the 1 most common engine and engine cooling problems. The number one most common problem is related to the vehicle's engine shut off without warning (1 problem). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Engine Shut Off Without Warning problems |
The electronic keyless-go system intermittently does not recognize that the key is present. The issue was first noticed in 2008 and brought to the dealers attention within months of purchase when the rear tailgate would not close. Repeated trips to the dealer to address this issue did not correct the issue. The latches, the switches, and the batteries in the keys have all been replaced but the problem persists. In March 2013 the keyless-go system started indicating "no key was detected" when the car was in motion. On March 5, 2013 the dash warning system indicated the "no key detected" (although the key was in the car) in freeway stop and go traffic. When the car came to a full stop due to traffic, the car shut down the engine and electrical system, with the transmission in drive, in traffic lanes. The car would not start again until the key was retrieved from my pocket, and put into the keyhole. The car was taken back to the dealer, and they replaced the antena booster (after 4 days of diagnostics). One week after the most recent repair, the car (with the new keyless-go antenna booster) again indicated no key present while driving on freeway speeds.