Audi A8 This full sized Audi A8 sedan offers interior luxury and spaciousness comparable to any car in the full sized luxury sedan class

A8 Won's Start When Hot

Old 05-23-2018, 03:58 PM
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Join Date: May 2018
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Default A8 Won's Start When Hot

I have an 04 A8 that will start the 1st time in the morning or when it has been sitting. When I run errands and have to get in and out is when I am having problems. When it's hot I can put the key in, turn it, and nothing. No sounds, no starter, no anything, no errors or lights either. The radio and A/C will turn on and I have power. If I let the car sit for a little it starts right up no issues. This only happens when the vehicle has been running and it is hot outside. It was fine all winter with no issues.

This morning it started right up and I drove the kids to school. Got out and walked them in to class and it started no problem when I left. Then I went to get fuel and when I turned the key there was a 5 second delay before it started and then the EPC light came on.

Last edited by cryorayne; 05-24-2018 at 12:22 PM. Reason: Additional Info
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