All Things Mk5 > How to Guides / Troubleshooting

Battery drain still happening... Completely stumped :( **UPDATE**

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Craigh1983:

--- Quote from: ryanpp on April 08, 2014, 04:26:10 pm ---Hey,

I've had this issue too, and decided yesterday to pay VW £300 odd to do it. Just signed up to answer this :)

There were several reasons as to the drain:

- Alarm horn fault
- Aftermarket stereo - This was coded out of the ECU today, as when no VW stereo is present, the ECU CONSTANTLY searches for one.
- Auxiliary heater - This is the issue they are currently fixing, they believe there was a resistance to ground across something on the heater, hence the drain.

I'll update if I hear any more.

--- End quote ---

Cheers mate keep me posted!

Craigh1983:
Did it cost u £300 for all the work and labour?

Thanks

Craigh1983:
Right guys,

I have a multimeter and im testing the fuses now to see if there is any drain

I want to make sure I am using it right so do I choose the V side or the A side? On the A side do I choose 20m or 200m? If its the V side then there is 2000m and 200m?

By the looks of it there is a drain on a lot of fuses. Its been nearly an hour now and they haven't gone to sleep! will try again later but help with the settings would be much appreciated :)

Thanks
Craigh

OSB:
Switch to 10A for safety - it will be much less than this. Don't forget to plug the red lead into the hole next to the 10A

jamma:
I had same problem , battery was fine but after three days was completely dead . VW took a look and it was my after market stereo draining the battery . All fixed now .

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