The rear bulb warning message may be displayed even if the rear bulbs appear to be functioning correctly. This can be caused by a poor connection between the bulb housing and the socket. Our technicians recommend to "hard wire" the socket to the housing, eliminating the contacts as an issue.
The rear bulb warning message may be displayed on Mercedes-Benz ML320 BLUETEC
Average mileage: 80,000 (80,000–80,000)
1 model year affected: 2009
2 people reported this problem
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