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  #1  
Old 10-03-2017, 10:19 PM
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Wrong polarity jump GLK 2013

Dear All,
A friend of mine wrongly jumped a GLK2013 the only thing that now functions is the radio and a massage that the car is in neutral. Please help where do I start looking to get it going . Thank you.
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  #2  
Old 10-03-2017, 10:25 PM
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Did you try dc the battery?
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Old 10-03-2017, 10:35 PM
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I'd suspect that the pre-fuse box is toast. Start there.
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  #4  
Old 10-06-2017, 12:27 AM
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Quote:
Originally Posted by wabenze View Post
Dear All,
A friend of mine wrongly jumped a GLK2013 the only thing that now functions is the radio and a massage that the car is in neutral. Please help where do I start looking to get it going . Thank you.
I would start looking at your friend, sounds like he owes you a repair. There are so many electronics in a modern MB, and they aren't cheap, so you don't want to guess at it. After replacing the battery and checking all the fuses, the dealer diagnostic computer is your next stop.
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Old 10-06-2017, 11:08 AM
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Be aware that wires themselves can be a"fuse". Called a "fusible link". They make it so a wire will melt internally for a major short circuit.

So in addition to replacing the battery and checking EVERY single fuse. Also check that all major wires still have continuity.

(This is why I don't allow anyone to jump start from my vehicles.)
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Old 10-06-2017, 03:36 PM
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a related story: AAA comes out to jump start a Benz with a dead battery. The owner witnessed the tow truck driver hook the jumpers up with a splash of sparks and he said something Like Oh my the wrong polarity!
When the jumpers were reversed to the proper polarity the car would not start. It had to be towed.
It was later discovered multiple electronics modules were fried. When the bill was presented to AAA for the cost to repair it exceeded $1000 and they balked but finally agreed to pay EXCEPT for the clock, AAA said their experience was that due to the age of the car clocks wear out or something to that effect.

The owner took a survery on the Forum for comments and it was overwhelming that AAA was only chiseling the owner because many folks had clocks 25+ years old that still kept perfect time. When that was presented to AAA they finally agreed to include a new clock.
I hope your case is different...
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