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Discussion Starter · #1 · (Edited)
I'm an apprentice car mechanic and was working on the HV system of my 2014 Fortwo Coupe(replacing a wire where a mouse had chewed through it after the car has been standing for 6 months). and I was taking all the precautions! (HV disconnect, gloves, rubber boots, etcetera ) and when I plugged the HV Disconnect back in I get the message: HV System Workshop : so I took a bosch EsiTronicII and checked all the fault codes and went over it and they are all good and deleted. but I still have that dumb ass message in my dash. is there any way to get rid of the message without going to an MB dealer and having them use their pricey Star system?
 

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2017 453 Passion ED/EQ
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" after the car has been standing for 6 months"... Not a good sign.... Hopefully the SOC of the pack was 80% charged during that time and also the 12v battery did not die. See elsewhere in forum on Bricking problems and how they occur.
 

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MY08 cabrio MY09 Brabus MY21 Bolt
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Our MY15 smart showed “HV System Workshop” and the dash lit up like a Christmas tree! HV would not take charge, dash would not clear.

Ceramic heater failure R&R, new 12V, clear codes under warranty and all is well!
 
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