I write here for a good friend. He drives an S80 MY99 6 cylinder Automatic 150KW MKB: B6304S3 Now to his problem: the moose runs quite normal, suddenly the Lambda lamp comes out and at the same time ABS and ESP fails. When was read out by VIDA he unfortunately did not have to print the protocol. Can now only reflect what was told him. Lambda probes defective, ABS sensor defective, cat defective, or control part defective. Now one part after another should geta The connection between Kat and the ABS or ESP unit can only be explained to me that the cat is really over and the moose switches into the emergency program and switches things like ESP and ABS off. With my guess I might have been right there? Was there ever such a case and how was there the solution ?? Thanks already for your help. Greeting Patrick