System updates

[Lance Evans]

AA came out today and told me the engine temp sensor which has been fitted is possibly in correct that’s why it is calling for a system upgrade and also pdf filter light came on but not blocked and the coil light flashing because sensor not recognised can somebody shed some light car is an A3 2litre TDI S cabriolet 

[Steve Q]

I'd speak to Audi if it needs a software update.