Question about 1985 Audi 5000 S

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1985 Audi 5000 won't start.

We just bought a 1985 Audi 5000 and we can't seem to get it to start. The starter for some reason won't turn over. We think it might be a problem in the neutral safety switch (its an automatic.) but we don't really know anything about that. We turn the key on and crossed the terminals on the starter selinoid and the starter turns but won't turn over the engine. I've heard that Audi's won't start unless it has a fully charged battery so that may be the problem, but it is charged enough to make all the lights in the dash light up and radio work so I'm not sure if thats true or not. I've never had an Audi so I'm kind of lost, we collect VW's so I thought it would be similar. So what could be going on here? Any ideas would be appreciated.

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  • Anonymous Mar 12, 2009

    Check for cracks in the vacuum hose. Probably a starter problem though.

  • fortbayou6 Mar 14, 2009

    could it be a timing issue? though itnever ran hot

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  • 57 Answers

Replace the starter. The starter drive which is called a Bendix on the end of the starter is broken.

Posted on May 14, 2008

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Posted on Jan 02, 2017

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Audi 5000 1985- starting problems


In order to start an engine needs a decent cranking speed, compression, timing, the right amount of fuel and a good spark at the plugs.

When an engine doesn't start, one or more of those things are missing and it is necessary to check each until the culprit is found.

If the engine has a distributor with a vacuum unit it is worth checking the vacuum unit diaphragm for punctures and if it is take a close look at the inside of the distributor cap. Sometimes they develop an invisible conductive coating.

The hall effect module can also cause some problems and the connections can also become oxidised.

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This solution is 6 months after, so you've probably fixed the car, but here goes anyway.
The fuel system at engine must be free from vacuum leaks, to work.
Replace the hose. You won't hear the pump until the engine turns over....and then there's too much noise to hear it! No gas to motor is usually the fuel pump relay. Pumps don't fail very often.

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1987 Audi 5000s won't turn over


Do you have headlights if you turn them on. Sometimes if a battery is clear dead and you jump it and it will depend on the gauge of wire in the jumpers whether it will start right off or not. Another scenario is the battery you bought is not good or fully charged. If you have a battery with less than 11 volts it probably won't energize the starter.

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