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Discussion Starter · #1 ·
Hi all

Can someone tell me exactly what the rear battery does? I have one there and one under the seat,

I have just and the LPG conversion on my 3.2V6 not too long ago and has been running without it, not sure if it is going to do any harm.

Would be nice if you can give me a peace of mind. :)

Thanks
 

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Where are you in the world?

It is very unusual for a 3.2 V6 petrol to have a rear battery - presumably in the boot/trunk under the spare wheel?

It was a factory option for cars sold into some very cold climates such as Scandinavia but it's pretty rare.

Some people installed a second battery themselves if they were keen caravanners or campers for example.

The only Touareg to have two batteries as standard was the mighty V10.

In simple terms, the rear battery looked after starting the car whilst the front battery looked after the ancillaries and helped out with the starting process.

The front battery could start the car on its own if the rear battery was duff or flat.
 

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Discussion Starter · #3 ·
Hi

Long shot but the car was all factory fitted with no aftermarket mod. And was an official release in Hong Kong, so could not have been a cold region at all

I do notice, not sure if that was me tho, a slight lack of power (even running on petrol again) compare with before. So not sure if removing one battery has anything to do with it.
 

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Well you live and learn!

I still can't think why you have two batteries: has your car got 4 zone aircon?
 
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