Mercedes Benz S Class it doesn't want to change gear

Car: Mercedes Benz S Class
Variant: 320 cdi auto
Model Year: 2002
It won't change gear either auto or tiptronic . I'm hoping its electrical . Any advice please
Posted: Dec 28, 2015 (8 years ago)
Hi I would start with checking the auto transmission oil level.
Posted Dec 28, 2015 (8 years ago)
Also if the engine management light is on you will need to get it scanned for faults. But check the auto transmission oil first.
Posted Dec 28, 2015 (8 years ago)
You can get this fault with a low battery or alternator not charging correctly . Worth checking voltage with a meter as not enough power for the ECU control stops your auto trans shifting to any gear but the 1st gear .
Posted Dec 28, 2015 (8 years ago)

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