2007 Mercedes-Benz ML320 CDI Q&A

2007 Mercedes-Benz ML320 CDI Question: trans will not gear down at a incline..no rpm increase no increase of speed

I will stop the motor wait and then restart and all is fine till it happen sometime a month or maybe in a few days no check engine lite no warning atall.. -
Answer 1
sounds like fail safe mode,have it ck'd at aamco for free then shop prices -