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VW MKIII-A3/B4 TDIs This is a discussion about MKIII-A3/MkIII Jetta/Golf (<99.5) and B4 Passats (96,97) TDI's. Non TDI related postings will be moved or removed.

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Old May 15th, 2006, 18:56   #1
tverhoeven
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Default Car not starting....HELP!!!

My car had been running fine for weeks now but tonight I could not start it. I turned the key and it was like the battery had died. I hear what I think is a relay clicking madly. I turn the key off and pull it out but the relay continues to click. I had to disconnect the battery to get it to stop. Had the car towed home and it is sitting in the driveway.

This is the first time I have ever experienced this. For those of you thinking relay 109, I pulled it out and the clicking continued.

Please help..
thanks
tony
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Old May 15th, 2006, 21:05   #2
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Old May 15th, 2006, 21:09   #3
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J, I was checking the Bentley and there is a starting interlock relay, but I don't know what it does. I'm struggling with the wiring diagrams in this thing. Do you know anything about it? It looks like it is the last thing before the starter, so it may be what's clicking.

But it could be low voltage at the battery or a bad ground somewheres.
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Old May 15th, 2006, 21:10   #4
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Yes it could be that. Good call. Charge the battery and check all the grounds.
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Old May 15th, 2006, 21:15   #5
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Hmmm we don't know much about this relay sound. I assumed it was a relay under the dash, but it may be the starter solenoid clicking madly like when the battery is low.
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Old May 15th, 2006, 21:18   #6
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Like I said. Charge the battery and start there.
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Old May 16th, 2006, 04:46   #7
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I will try that tonight. I had it hooked up to a buddy's car but that did not help and it almost stalled his car. When I put the jumper cables on though, the clicking stopped.

Where is the solenoid you are talking about?
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Old May 16th, 2006, 06:36   #8
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The starter solenoid right on the starter.
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Old May 16th, 2006, 07:46   #9
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I have been reading thru some older posts. Seems I am not the only one that has gone thru this. People are talking about bad batteries and cleaning the grounds underneath the battery.

Anywhere else I should be looking for a ground to check?
thanks
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Old May 16th, 2006, 08:10   #10
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There is one connected to the engine on top of the transmission. Replace the battery. Tell your buddy to replace his too.
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Old May 16th, 2006, 08:14   #11
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hahah....thanks Jason....I will do that.
Now the battery, I was reminded is about 2 years old but it was put thru hell during the whole IP replacement and timing issues that I have suffered over the past few months. That in itself may be the problem.
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Old May 16th, 2006, 08:21   #12
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Yep. Replace it.
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Old May 16th, 2006, 09:02   #13
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I will take care of that tonight. As well, I will check the grounds.

What specs should I look for in a battery???
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Old May 16th, 2006, 09:46   #14
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Don't "check" the grounds - clean them. This happened twice to my Passat - turn the key, no turning, just buzzing from the instrument cluster. The buzzing stopped when I turned the key, but I couldn't get the car to start without first disconnecting the battery, and reconnecting it. It would start for a while, and at the second failure, I cleaned all of the grounds. It hasn't happened again - 15 months? since that failure.

Next to (almost under) the battery is a bunch of the - don't forget to clean the main ground on the trannie (iirc) - that one that the fat wire goes to. Also, while you're at it, clean the positive lead to the starter motor. Odd, but I think that one may have been my problem.

Good luck.
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Old May 16th, 2006, 10:21   #15
tverhoeven
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UPdate: A buddy went over to my house to have a look. He says the battery is measuring 12V+ and should be fine. He cleaned the contacts on the battery and was able to get the instrument panel to light up but still not turning over and still hearing the clicking/buzzing sound. The clicking sound seems to go away when he hits the brake though. He is guessing that there is enough of a power draw from the brake lights to quiet whatever relay is causing the problem.

Are these grounds obvious? Will I know them when I see them?
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Last edited by tverhoeven; May 16th, 2006 at 11:43.
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