For our son we bought an Audi A2 , 1.4 petrol EZ 2001. The oil level sensor was defective and the glass roof . Otherwise the approx. 300 km long overpass worked without any problems . After the purchase we made an appointment in an Audi workshop to exchange the oil level sensor . In the workshop the car was looked through . In the process the timing belts had to be changed and oil separator renewed . The glass roof had to be clamped. The first day after repair everything was great. n lighted engine control light even though lit up in the middle o.k. error readout resulted in 2 sporadic errors. Exhaust gas return throughput too small and data bus drive messages are missing – air conditioning control unit. Workshop has various options for repair when it does not stop after erasure. After about 50 quiet km it lights up again. In the workshop it was said that we might not get any Au and that is due in August. You probably already noticed that we are not Bastlers. The Vert They wanted to change an axe cuff, even though only one bell was broken. A friend of mine fixed it to us again. He also looked up the throttle flap. He said that it would not be worn out, but it did not clean it. Since the 17-year-old’s cash register is quite scarce, it would be nice if we knew where to start? Before the repair at Audi, the engine control didn’t glow. Does anyone know advice?