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Author Topic: Battery drain still happening... Completely stumped :( **UPDATE**  (Read 47707 times)

Offline doylebros

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Re: Battery drain still happening... Completely stumped :(
« Reply #75 on: April 10, 2014, 10:32:45 pm »
I think the common item is that relay marked 167 as they all tie back to terminal 30A  may be Ed or SI will confirm if there reading this unless anyone else knows?

Offline Eddie-NL

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Re: Battery drain still happening... Completely stumped :(
« Reply #76 on: April 10, 2014, 10:34:19 pm »
they are all on Terminal 30
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Offline doylebros

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Re: Battery drain still happening... Completely stumped :(
« Reply #77 on: April 10, 2014, 10:37:12 pm »
Is that relay duplicated anywhere on the car Ed - just wondering if that's sticking?

Offline Craigh1983

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Re: Battery drain still happening... Completely stumped :(
« Reply #78 on: April 10, 2014, 10:46:45 pm »
Just confirm your year build - eng AXX or BWA  and gear box code or if it's manual or Auto. As there's a few different types!

F3:- I think is convenience system, but need above confirmed prove it!

My engine is the AXX and it's a manual. Not too sure of the gear box code.

Offline doylebros

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Re: Battery drain still happening... Completely stumped :(
« Reply #79 on: April 10, 2014, 10:48:00 pm »
Just confirm your year build - eng AXX or BWA  and gear box code or if it's manual or Auto. As there's a few different types!

F3:- I think is convenience system, but need above confirmed prove it!

My engine is the AXX and it's a manual. Not too sure of the gear box code.

Still need the year though!

Offline Craigh1983

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Re: Battery drain still happening... Completely stumped :(
« Reply #80 on: April 10, 2014, 10:51:12 pm »
Mines a 2005 plate.

Offline Teutonic_Tamer

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Re: Battery drain still happening... Completely stumped :(
« Reply #81 on: April 10, 2014, 10:55:24 pm »
Mines a 2005 plate.

What model year - you find that from the 10th digit of your VIN.

And the gearbox code will be found on tthe data sticker - one of which is inside the front cover of your service book, the other is to the left of the spare wheel underneath the boot carpet.
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Offline Eddie-NL

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Re: Battery drain still happening... Completely stumped :(
« Reply #82 on: April 10, 2014, 10:57:32 pm »
code is AXX and is a manual gearbox
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Offline Craigh1983

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Re: Battery drain still happening... Completely stumped :(
« Reply #83 on: April 10, 2014, 11:08:44 pm »
Mines a 2005 plate.

What model year - you find that from the 10th digit of your VIN.

And the gearbox code will be found on tthe data sticker - one of which is inside the front cover of your service book, the other is to the left of the spare wheel underneath the boot carpet.

The 10th digit from the vin number is a 6 so I'm assuming that's 2006.

On the sticker inside service book it says...
147kw
6F
AXX
GVT
LY3D
RZ

I hope that makes sense to you guys! Lol
« Last Edit: April 10, 2014, 11:15:37 pm by Craigh1983 »

Offline doylebros

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Re: Battery drain still happening... Completely stumped :(
« Reply #84 on: April 10, 2014, 11:12:40 pm »
code is AXX and is a manual gearbox

I'm checking and that fuse 18 comes up as - special vehicle unit - anyone know what that's used for?

Offline ryanpp

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Re: Battery drain still happening... Completely stumped :(
« Reply #85 on: April 11, 2014, 09:23:38 am »
Hi there,

Just got my car back from VW and well, it's not great news.

Basically they charged me £227 and said to me, "we couldn't find the battery drain, but when we put a donor battery on the drain disappeared and we could not recreate it".

So they gave me a car back with a flat battery that is still discharging, claiming that the battery is "Self-discharging", but what really gets me is that they could not recode my steering rack, as they "could not find the battery issue".

Sounds like they just don't know what is wrong with it, so I'll be speaking to a manager for a refund. Disappointing.

I will be working on the car today, and will be doing continuity tests on all circuits, to check for cable degradation, I will be doing current tests on all fuses, and I will also be checking the starter motor and alternator relays , as these are unfused.

Will keep you updated.

Offline ryanpp

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Re: Battery drain still happening... Completely stumped :(
« Reply #86 on: April 11, 2014, 09:27:48 am »
Quick update, with a resistance test across the terminals immediately after disconnecting, there is a resistance that starts at 0.3kOhm and falls down to 0.01kOhm (much like an exponential). Does anyone know if this transient is usual when disconnecting the battery and measuring resistance? I would be inclined to believe that the resistance across the the terminals should be infinite when disconnected, and at the very least a lot higher than 0.3kOhm on initial disconnect.

Offline ryanpp

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Re: Battery drain still happening... Completely stumped :(
« Reply #87 on: April 11, 2014, 09:55:15 am »
Reading initial current draw of 2.4 amps, dropping down to 1.6A once settled - Still too high and would discharge battery overnight.
Will keep updates posted

Offline Craigh1983

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Re: Battery drain still happening... Completely stumped :(
« Reply #88 on: April 11, 2014, 10:06:08 am »
Reading initial current draw of 2.4 amps, dropping down to 1.6A once settled - Still too high and would discharge battery overnight.
Will keep updates posted

Sorry to hear that mate that's terrible!! I'm glad I have resisted on taking it to vw then!

Mine luckily is doing the drain every night now so it should be a lot easier to find fault now.
Just waiting to hear back from someone what fuse 18 (special vehicle unit) is used for?


Offline SI-R32

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Re: Battery drain still happening... Completely stumped :(
« Reply #89 on: April 11, 2014, 11:37:40 am »
fuse 18 for 2005 car, fuse box high or low is indeed for special vehicle thing (possibly for emergency services? or for an amplifier

do you have the OEM amp under either of your front seats for the speakers
Loads of extra's and retro fits.