Join Date: Dec 2005
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Could be the misfire has killed the cat......
I suspect there are one or more faulty
causing unburnt fuel to go down the exhaust which will end the cats life prematurely!.
Welcome to the forum,by the way.
I'd rather push my Alfa than drive a BMW....
Currently in Lagdti's garage:
2004 Saab 9-5 HOT Aero and a 2001 Audi A3 1.8 Turbo