New engine battery

[simplybikes]

Hi folks...I'm getting a new engine compartment battery and just wondering what will need to be reset after the battery is disconnected and replaced. The radio / nav unit will need to have the code inserted to work but I don't know what else. Anybody do this recently?

 

[Rich20]

If you are just changing the battery over in one hit everything will be as it was. You should not need to enter codes etc. the only thing I found was that the one shot operation of the front windows stopped working but there is a reset function for this in your handbook.

 

[simplybikes]

Thanks for that Rich20, much appreciated.

 

[WelshGas]

I think the factory supplied Radio or SatNav is coded to the ECU. An aftermarket unit might well need the Code entered.

 

[California124]

Just keep power to the battery leads via another battery and jump leads and everything will stay the same

 

[simplybikes]

Thanks California124 that sounds like a good idea

 

[AlanC]

Provided all the equipment is original VW, the computer looks after the codes so nothing will need to be reset.

I have had to disconnect the engine battery recently while fitting the correct trailer wiring with no ill effect.

Alan

 

[simplybikes]

Thanks for reply AlanC

 

[Alan Andrews]

But if you have a newer Cali with the smart generator, then if you change the battery to a different brand/type then you will need to use something like VCDS to update the settings. The settings also ask for the Serial number to be updated - I guess because the serial number will provide verification to the settings.