Hi Guys.

I have some strange mistakes on my car. When I bought it at a dealer, I put a tester on and it said I had a permanent error on my AUC sensor, and the ekstra waterpump. The dealer replaced thoose to, and everything schould be perfect.

But today I had a tester on again, and it said I still have errors on theese to, but not permanent. Only sometimes there is an error.

I have checked that the parts are new, they are, and the wirring seems to be good.
Is there a way to test thoose to manually? (Long way to the dealer)

Also, there schould be a electric heater element somewhere to heat up the air fast, in the cold month, can I test that as well?

Best regards from Denmark.