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Battery drains overnight, they say it' not the battery. Anybody with any suggestions would be apprecated.
 

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What year model is your car and who is "they said"?
 

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It's 2006 VW jetta sedan 4door , The battery is Canadian tire , they checked it said there was nothing wrong with it.
 

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You don't really need a poll for this as the only options you've given are Unlimited, Single, Any meaning what?

Which radio do you have fitted?

Poll deleted.
 

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Some have reported problems with the Monsoon system amp, mine was the radio itself. Not saying this is your problem, but was mine. The best method would be use a DC amp clamp to verify draw. If you do not have one or know how to do it, pull the radio system fuse for a day or two and see if it comes back.
 

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Battery drains overnight, they say it' not the battery. Anybody with any suggestions would be apprecated.


Light on anywhere?

Batteries don't just decide to die (if tested good) one day. Has any prior work been done to it in last couple weeks?

Other reasons:

Bad battery
Wrong battery for TDI
Failed alternator/regulator
Failed relay
Bad ground
Broken ignition
Bad add-on (radio/amp/...)
 

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Discussion Starter #9
I have had Camshaft replaced in Jan. Had wiring harness replaced on pass. Door in February. and also front struts . The mech that did harness did a diagnose of battery was weak, found. O.700 amp draw initially which drops to less than 0.050 amps after doors are locked for 10 min. Said this normal. Recomended replacing battery with OEM or Interstate , the existing battery is CTC which is a little under 80amps. Which is not standard equipment for TDI. confused.
 

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I have had Camshaft replaced in Jan. Had wiring harness replaced on pass. Door in February. and also front struts . The mech that did harness did a diagnose of battery was weak, found. O.700 amp draw initially which drops to less than 0.050 amps after doors are locked for 10 min. Said this normal. Recomended replacing battery with OEM or Interstate , the existing battery is CTC which is a little under 80amps. Which is not standard equipment for TDI. confused.
A fresh normal battery will last a bit, but will show issues the older it gets. So you need to go get a battery made for your TDI.

As for the draw on unlocked car (TDI): Normal - It powers a bunch of stuff up, to get ready to start.

This is all assuming that your repaired door harness is not shorted anywhere. But I think a new battery would fix you right up (at least it will prevent future issues of that type).
 

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My draw was 0.68 amps after the computers shut down (or as you put it the doors locked and 10 mins.). With the sound system fuse pulled and time allowed for the computers to shut down again the draw went to 0.016 amps which is normal. To further isolate the component within the sound system, we re-installed the fuse took the time to first disconnect the Sirius box then the car amp each in order and found that the HU (radio) was the culprit. This process took some time as the same computer shut down wait was required with each step, but was effective. With the sound system now isolated and removed from the system (fuse removed) the battery drain has not come back after months, where-as before the car required a jump at minimum every other day, but usually daily. A standard load check can be done to your existing battery to determine it's health and if that is the cause, your done. It was not my problem. My point is these cars have known documented parasitic drain issues that need to be explored before you shot-gun a battery at it. Please see the attached TSB and we wish you luck.

http://pics.tdiclub.com/data/500/TSB_27_08_04_Matrix.pdf
 

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In the beginning it was stated the battery was good then the harness installer said otherwise and mention the battery was not standard for this application. Did a quick search for "CTC battery" which had some confusing results...so this does need to clarified.
 

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In the beginning it was stated the battery was good then the harness installer said otherwise and mention the battery was not standard for this application. Did a quick search for "CTC battery" which had some confusing results...so this does need to clarified.
Canadian Tire Corporation is a big-box store that does not have a retail presence in Texas.

They have their own brands like many other large retailers.

I'm sure Canadian Tire has a suitable battery for a TDI. I'm not sure the battery they sold him is the right battery for a TDI, which needs more cranking power because of higher compression.
 

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Agreed as I purchased and installed the correct battery...and so many others through the years. Thanks for clearing up the CTC thing. Didn't think he was using Lith.
 

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In the beginning it was stated the battery was good then the harness installer said otherwise and mention the battery was not standard for this application. Did a quick search for "CTC battery" which had some confusing results...so this does need to clarified.

A battery can be good, but wrong application!
 

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That has more to do with capability. You can put just about any 12 VDC battery in a car if it fits the whole and terminal configuration. Group 47, 48 or any other will work if the capacity matches or is better...Amp Hours (AH), cranking amps (CA), cold cranking amps (CCA) and reserve capacity (RC) We do not have this info on his installed battery. I think Blythe has things under control. ;)
 
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