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Start-Up / Cranking

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Old 08-28-2014, 01:19 PM
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Default Start-Up / Cranking

I am trying to learn the quirks of the 2007 S8 that I recently purchased. I noticed that when I start it up, it generally takes 2-3 seconds after turning the ignition for the cranking to catch. I'm curious if this type of moderate delay is typical of the vehicle, or if may be an issue with my car.

Thank you.
Old 08-28-2014, 01:42 PM
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mcs
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Originally Posted by MonacoGP1984
I am trying to learn the quirks of the 2007 S8 that I recently purchased. I noticed that when I start it up, it generally takes 2-3 seconds after turning the ignition for the cranking to catch. I'm curious if this type of moderate delay is typical of the vehicle, or if may be an issue with my car.

Thank you.
It could be your crank angle sensor. This happened to me. It will take longer to fire and then wont at all.

The sensor is cheap, I bought it online genuine for around $100US.

Mike
Old 08-28-2014, 02:52 PM
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Search the forum as there are several examples of the failure modes of the rpm/crankshaft sensor.
Having the vcds diagnostic cable and pc with the software is almost mandatory with these cars.
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