All Things Mk5 > How to Guides / Troubleshooting
Battery drain still happening... Completely stumped :( **UPDATE**
rich83:
remind me/us.... aftermarket head unit? or rns510?
Eddie-NL:
RCD510 is the stereo
If the car doesn't go to sleep then the radio won't
When I did some testing there were about 5 circuits that didn't go to sleep straight away (after about 20 - 30 mins), then the relay in the engine fuse box clicked and power was cut on those.
Craigh1983:
--- Quote from: Eddie-NL on April 09, 2014, 10:37:20 am ---RCD510 is the stereo
If the car doesn't go to sleep then the radio won't
When I did some testing there were about 5 circuits that didn't go to sleep straight away (after about 20 - 30 mins), then the relay in the engine fuse box clicked and power was cut on those.
--- End quote ---
To be honest Ed I think it was the exact same fuses that you looked at before that are now not switching off. There are about 6 of them... I remember them cutting out after 15 - 20 mins. But last night I pressed the bonnet latch down. armed the alarm and the little red light was flashing. I left it like that and checked after 20 minutes. then an hour and then 2 hours and the same fuses were all still active. Sods law I will try it again tonight and it will be a different story. But that obviously means that sometimes its going to sleep and sometimes its not.
These are the fuses in the engine bay that are staying active.
Fuse 3
Fuse16
Fuse 17
Fuse 18
Fuse 19
Fuse 24
eltel:
Hi
I had the same issue fuse 19 draining ,everything pointed to the rns 510 and I had quite a few people look at it, in the end I had no choice and took it to vw Chelmsford they charged £132.00 +vat per hour it took him 3 hrs to find the drain , it turned out to be the climate panel and that was £300 but I had to wait 8 days for it to come.
So all im saying is sometimes you just have to bite the bullet and take it to vw its not cheap but if you want it sorted that's what I had to do.
Good luck :happy2:
Craigh1983:
--- Quote from: eltel on April 09, 2014, 05:58:55 pm ---Hi
I had the same issue fuse 19 draining ,everything pointed to the rns 510 and I had quite a few people look at it, in the end I had no choice and took it to vw Chelmsford they charged £132.00 +vat per hour it took him 3 hrs to find the drain , it turned out to be the climate panel and that was £300 but I had to wait 8 days for it to come.
So all im saying is sometimes you just have to bite the bullet and take it to vw its not cheap but if you want it sorted that's what I had to do.
Good luck :happy2:
--- End quote ---
Thanks for that info mate that's really interesting! And yea I may have to resort to take it to VW but like u said if I want it sorted for good then I may have to.
But first.... Here are the results from my battery drain test this evening.... They are absolutely terrible!!!!
Hi mate,
So with car all locked... left for 2 hours...
Fuse 3 is using 91ma
Fuse 16 is using 66ma
Fuse 17 is usage 33ma
Fuse 18 is using 123ma
Fuse 19 is using 747ma
Fuse 24 is using 73ma
No wonder my car is draining so fast!!
I took a battery voltage reading at the start of the test which was 11.9V (due to it being drained slightly yesterday) and in just an hour and half this dropped to 11.7V.
For some strange reason my computer is not shutting these circuits down!!!
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