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29-08-20, 05:24 PM | #1 | |
Grown up member
Join Date: Jul 2015
Location: Brightons Falkirk
Posts: 20
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Will not start
Hello guys, hoping someone can point me in the right direction. Silver Audi 80 cabriolet 2.0E engine 1995 ABK. Was out in the car THursday, Friday morning car would not start. Battery is fully charged but when key is turned I can hear the fuel pump prime but the engine doesn't turn over. There's a sort of muted noise would'nt say it was a click when I turn the key. 12v is showing at the starter motor terminal and 12 v is showing at the solenoid terminal when ignition is on. I'm baffled. Could it be starter motor?? Mileage is 108K. If it is how the heck do you get it out of the car?? Hoping someone with humungous knowledge can help. Thanks in advance for any help.
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29-08-20, 06:51 PM | #2 |
Senior Member
Classic Audi Club Member
Join Date: Apr 2018
Location: Wales
Posts: 1,157
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Could be the starter solenoid. Give it a tap with a hammer.
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29-08-20, 08:14 PM | #3 |
4 ring whore!
Classic Audi Club Member
Join Date: Mar 2011
Location: Scottish Borders.
Posts: 7,520
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As above, the solenoid earths through the starter brushes. If the brushes are worn then the spring pressure acting on them decreases, the chap with a hammer can be enough to give them continuity.
Also check the braided cable between the solenoid and the starter, it can corrode and will crumble away between your fingers. Poor connection at solenoid from ignition switch is also possible as is the ignition switch burning out internally too. From your diagnosis with voltmeter, sounds like your thinking regards the starter is on the right lines. I've never had one out an ABK so can't comment on removal, sorry. |
29-08-20, 09:11 PM | #4 |
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Join Date: Feb 2019
Location: Near an MB ur Quattro
Posts: 1,171
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Low
Battery? I note it’s fully charged, but is it any good? Try a jump from another car.
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2006 A3 (daily drive) 1987 MB ur Last edited by BackintheFold; 29-08-20 at 09:13 PM. |
29-08-20, 10:57 PM | #5 |
4 ring whore!
Classic Audi Club Member
Join Date: Nov 2007
Location: Polmont
Posts: 2,617
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This can also be caused by a bad earth cable / connection. Your car will not turn over without a good earth.
Although 12v is good, if the battery can't take the load, it won't turn over. Starter is underneath the exhaust manifold. Looks like you're not far from me
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1991 90 quattro 20v sport 1991 90 quattro |
30-08-20, 08:33 AM | #6 |
Grown up member
Join Date: Jul 2015
Location: Brightons Falkirk
Posts: 20
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Thanks guys for all your advice. Ive taken the earth lead of and cleaned it up and I tried a jump start from another battery but nothing. Ill try giving the solenoid a tap and see if I can bash some life into it. Im not looking forward to trying to get it off looks like access is very limited.Ill get back to you all later today.
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30-08-20, 09:46 AM | #7 |
4 ring whore!
Classic Audi Club Member
Join Date: Mar 2008
Location: Stockport
Posts: 2,348
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I'd focus on the ignition switch first, they are a common failure on the B4 due to poor quality. This is a B4 switch that failed on mine. Notice how the contacts don't line up and the springyness goes away with age and they can no longer handle the current: https://s629.photobucket.com/user/be...F8570.jpg.html
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1992 80 quattro 20vt Last edited by Ben; 30-08-20 at 09:55 AM. |
17-09-20, 05:03 PM | #8 |
Grown up member
Join Date: Jul 2015
Location: Brightons Falkirk
Posts: 20
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Well the plot thickens. I thought that it was the starter motor, however i ran a wire from the solenoid and flashed the negative post on the battery and the starter turned over. The car did start but only ran for a few seconds. When i turn on the ignition the pump primes and all the lights come on the dash. Anyway following the advice hgere i will change the ignition switch. Hoever does anyone have step by step details of how I do change the ignition switch? 1995 cabriolet 2.0 B4 engine. Again thanks in advance.
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17-09-20, 08:29 PM | #9 |
4 ring whore!
Classic Audi Club Member
Join Date: Nov 2007
Location: Polmont
Posts: 2,617
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It's not too difficult. You can either remove the instrument cluster to do it from the top or the lower shelf below the steering wheel if working below.
Disconnect the wiring plug first. There's 2 small grub screws that you'll need to remove. They're usually covered in paint and sometimes tape as well. Once undone, it should just pull out.
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1991 90 quattro 20v sport 1991 90 quattro |
17-09-20, 08:33 PM | #10 |
Grown up member
Join Date: Jul 2015
Location: Brightons Falkirk
Posts: 20
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Mikes2 many thanks for your information and help. I'll give it a try over the next few weeks. Btw we must almost be neighbors!!
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