2015 e-Golf 12v Battery Drain vs J-1050 Module Replacement

[tcjonescsrp]

I have a 2015 e-Golf in which the 12v battery drains to nothing repeatedly; I've had to replace 4 batteries in less than a year. Now the 12v warning light comes on. Random buzzing sounds also from somewhere in the engine compartment. The dealer (only one in Houston with a tech capable of working on an e-Golf) has analyzed under the direction of VW HQ, and says the J-1050 high voltage battery charging control module needs replacement for $3115. Does this sound right? I thought the high and low voltage systems were independent of each other.

 

[f1geek]

I have a 2015 e-Golf in which the 12v battery drains to nothing repeatedly; I've had to replace 4 batteries in less than a year. Now the 12v warning light comes on. Random buzzing sounds also from somewhere in the engine compartment. The dealer (only one in Houston with a tech capable of working on an e-Golf) has analyzed under the direction of VW HQ, and says the J-1050 high voltage battery charging control module needs replacement for $3115. Does this sound right? I thought the high and low voltage systems were independent of each other.

There is. DC to DC converter that charges the 12 V battery. It sounds like this is part of the module you mentioned. If you look at the parts schematic and can not find a separate DC -DC converter, then it makes it would be part of J-1050.

 

[gitnewb]

I have a 2015 e-Golf in which the 12v battery drains to nothing repeatedly; I've had to replace 4 batteries in less than a year. Now the 12v warning light comes on. Random buzzing sounds also from somewhere in the engine compartment. The dealer (only one in Houston with a tech capable of working on an e-Golf) has analyzed under the direction of VW HQ, and says the J-1050 high voltage battery charging control module needs replacement for $3115. Does this sound right? I thought the high and low voltage systems were independent of each other.

The JX1 module is responsible for charging the 12V battery. Make sure this is what they are talking about changing. If yes, the price sounds about right for a dealer price. You can of course take it to an independent VW shop to get the work done too with a module from a used car.