Mercedes C350E - issues with 12V Battery Module and switching to E-mode

MCINERJ

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Joined
Jul 7, 2020
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10
Location
London
Car
C350E
Have had a few issues recently with my car, not being able to switch into E-mode and hybrid not switching into electric either, took it to an independent who plugged it in to diagnostics, came up that the High Voltage Battery Module needed replacing.

car is 3 and half years old, and has 27,100 miles on the clock

Took it into dealership and they are saying that there is an issue with the 12V battery module, been given a nice bill of 750 pounds, explanation says : Hybrid fault : 12V battery replace, software update and retest.

any thoughts? has anyone had anything similar?
 

greenmanslk

MB Enthusiast
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Sep 23, 2019
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UK
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SLK
I thought these cars had something larger than a 12v battery
 

wongl

MB Enthusiast
Joined
May 29, 2005
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1,164
Location
Surrey and Hong Kong
Car
A180CDI, B200d, C300h, SLK250
Have had a few issues recently with my car, not being able to switch into E-mode and hybrid not switching into electric either, took it to an independent who plugged it in to diagnostics, came up that the High Voltage Battery Module needed replacing.

car is 3 and half years old, and has 27,100 miles on the clock

Took it into dealership and they are saying that there is an issue with the 12V battery module, been given a nice bill of 750 pounds, explanation says : Hybrid fault : 12V battery replace, software update and retest.

any thoughts? has anyone had anything similar?
Did the dealership fix your fault for £750? If so what is the problem or resolution you are after?
 

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