D3 Parasitic battery drain

[Oli18]

Hi,

Thanks for all the advice so far and sorry for the late reply...been a crazy 2 weeks leading up to Xmas at work.

Good to know i'm not alone in this. I used OBDEleven for my last scan and have since fired up an old PC with VCDS to do a new scan.

I thought i'd follow the advice and start with getting a new battery. I've had the car 3 years and thought it would be good to eliminate that as a factor first.

This was my old battery [part number 4E0 915 105 A]:



I bought an OEM battery from TPS for £150 [part number 4E0 915 105 DL]:



I used this video to code the battery in VCDS:

https://www.youtube.com/watch?v=IJAScg6JrYI

And it was accepted first go:

Originally Posted by Delboy

There's many faults in there. I'd suspect quite a few of them are old and related to low battery but the one that jumps out to me is the over temp of the air compressor.

That tells me you quite possibly have a leak in the suspension somewhere. If there is a leak then the suspension will be trying to level it's self periodically while your away from the car.

I do think know however if it will run the compressor or just use what's in the accumulator.

The other thing that jumps out is the instrument cluster fault. It's vague but I have seen on two occasions now where a faulty cluster keeps the can bus awake while the car is locked and that flattens the battery.

You can easily tell if the can bus is awake by looking to see if the lights around the gear shift are lit up at night when the car has been locked for more than 10 mins

Thanks Delboy. I'll take a look and let you know!

I will post another VCDS scan tomorrow and will keep you posted on progress. I'm off to Holland next week for Xmas so would love to have this sorted.

Oli