A4 3.0 v6 tdi quottro .had crash in car rebuit front end rad pack bumper.car started run ok but after 10mins shut down wont start leave it lock it for 10 mins it runs again.when it cuts out it will not comuicate with computer but does once started. also stableation error comes up on dash.can any body help.to sort this out.

 

What are you scanning the car with? Ideally need VCDS to pulled logged errors. Is the coolant circulating? Any issue with overheating before car turns off? Also check battery voltage, ESC could be linked to failing battery.

No overheating.scan with snapon scanner runsgood untilit cuts out.

 

I'd get the battery checked ked first as that's often the cause for this. In failing that I hope you're not as unlucky as this guy: 

https://www.audi-sport.net/xf/threads/419622/ 

Coolant leak caused the ECU to get fried. 

Thanks for advise have sorted it.took battery off to it checked put +&-together for 3mins battery ok put it back car is running fine all errors gone had it running for two hours did not cut out no errors came up.