2015 eGolf whining sound during charge

[emptylorax]

Greetings all, I just purchased a used 2015 eGolf and am charging it for the first time on 110 VAC at my home. I am hearing a whining sound coming from the motor compartment some time after I start charging. Is this typical or should I be concerned? Thanks.

 

[JoulesThief]

Greetings all, I just purchased a used 2015 eGolf and am charging it for the first time on 110 VAC at my home. I am hearing a whining sound coming from the motor compartment some time after I start charging. Is this typical or should I be concerned? Thanks.

Typical. It's water pump ciruclating coolant past the charge controller/transformer for the battery, it gets hot during the recharging process. It will sometimes run even after battery is completely recharged.

 

[f1geek]

Without hearing the noise, it is hard to say what is normal and what is not normal. While the e-Golf does not have a liquid cooled battery pack, it does have a liquid cooled electric motor, power electronics, and charger (the thing that converts AC to DC power to charge the battery). I don't routinely listen to my car when it is charging, but I would imagine the coolant pump runs, if necessary, to cool the charger while the car is charging. This will probably make some noise.

 

[emptylorax]

Thanks for the quick responses. Some kind of coolant loop would make sense. I can often hear a water pump running after my wife's Prius is turned off. I'll poke around and see if I can pin point it to be sure. Nice to have some reassurance from you all though.

 

[Sparklebeard]

I hear a very very soft hum/‘whine’ from both our e-Golves while they charge but everything in the garage has to be off and silent to be able to hear it. I’m not sure if this is what you’re hearing?