Starting Issues 2014 E300H


New Member
Oct 22, 2020
Morning Everyone,
I am new to this forum and I hope someone can help.
I have a 2014 E300h for around 2 years with no issues 87000 miles and serviced by a local Merc specialist.
Recently I have developed an issue whereby when going from battery to the main engine it's as if the car bump-starts instead of starting with help of the starter.
After this happens the car runs fine but the battery light will stay yellow and not go green.
Also sometimes a malfunction notice comes up and it will only stop on electric.
If I start and go into S mode the starter starts the car runs fine all day no issues.
I am thinking as is my mechanic starter motor but to be honest I think it is something else as well.
Can anyone help?
My mechanic plugged it in and no faults showing at all?

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