Audi A3 2.0 TDI 170 BHP year 2010
In hot sunny weather (say +25 degrees) the car will not start. It does one of 2 things. 1/ instrument cluster lights up and then goes dead (there is power everywhere else; ie; windows, lights, radio etc etc). 2/ starts and then cuts out within 3 minutes. The car will not start afterwards. When the temperature outside cools it starts and runs perfectly. It runs all winter perfectly and passes MOT’s with no advisories. Parts replaced so far; battery; ignition switch; starter motor; genuine Audi instrument cluster; still not resolved issue. Audi UK have had car twice (they replaced cluster) and nothing comes up on their computer. Anyone had this issue? I am able to do most things but dont know what to do next.
Many thanks; Adrian