Hello… I was in the workshop the day before yesterday (at audi) with my 80 b4 2.3 l. actually I wanted to have my error memory read out. (Did you advise me because he doesn’t hold up and runs bad) the type of audio did not say we do a problem.. 5min later when he connected everything and the computer did not show anything he noticed that my car bj 09/92 has no memory.. did he really not have a ?? now everything well so he wanted to try something else why he runs so bad.. he sprayed brakes cleaner into the slit (see picture) and the car immediately turned up… and the guy has talked about a seal from the nozzles.. HÄÄ can explain this to me more precisely ? he said the bender must go down and it costed probably 200-300 euros … maybe someone can explain that to me only train station thanks micha