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S6 won't start occasionally / Randomly

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Old 08-31-2011, 11:49 AM
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Default S6 won't start occasionally / Randomly

Hey everyone - With seemingly no rhyme or reason, occasionally my '02 S6 Avant won't fire. I'll crank the key for as long as I feel comfortable doing so and it won't start. If I sit and try to start it over and over again, it eventually starts and runs just fine. I've checked fuses, disconnected and re-connected the battery and nothing. Any idea of what this could be? Any info is much appreciated.
Thanks
Tim
Old 08-31-2011, 11:55 AM
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What codes are you seeing?
Old 09-01-2011, 04:45 AM
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Very possibly ignition switch. Sometimes impossible to diagnose and must be replaced. BTDT several times on my old C4. Acts almost like a disabler....

That switch is (in) famous
Old 09-01-2011, 08:03 AM
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Originally Posted by TimZ
Hey everyone - With seemingly no rhyme or reason, occasionally my '02 S6 Avant won't fire. I'll crank the key for as long as I feel comfortable doing so and it won't start. If I sit and try to start it over and over again, it eventually starts and runs just fine. I've checked fuses, disconnected and re-connected the battery and nothing. Any idea of what this could be? Any info is much appreciated.
Thanks
Tim
In my case it was the Temp sensor, similar symptoms. $20 15 minute fix
Old 09-06-2011, 06:57 AM
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Default Speed Sensor

The dealer says the code they're pulling indicates the speed sensor is the issue. About $450 installed. Does this sound right?
Thanks
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