Code P7997

Asked by Apr 19, 2017 at 04:39 AM about the 2006 Mercedes-Benz M-Class

Question type: Maintenance & Repair

We have a gearbox problem on a 2006 ml350 and the scanner tool reads
P7997. And says. "Selector gear position V engaged at speed78 km/h.".  Can
any one tell me what we should be resetting?.
Regards. Richard.

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