Originally Posted by Lowlander
Hello - do you have experience of Cat failures at low mileage?
My 2004 coupe has done 22,000 miles and has 3 mths warranty left. UK Dealer says both cats need replaced (under warranty) and that they recently had the same issue on another Crossfire.
I do use the Crossfire as often as possible because it's such good fun, but maybe I should use the other car for short journeys around town if this is an issue. Could there be another cause of the failure rather than just short journeys - maybe have the dealer check out the sensors?
Cheers,
Lowlander
I has been known on other 320 engined MB cars in the past but I don't think it is common. There are actually 4 cats, which ones have 'gone' and how have they determined that? Has it failed an MOT or has the MIL just lit up and thrown a code based on the rear O2 sensors detecting a loss of cat efficiency? I'm curious because mine is of similar vintage. At least it is still under warranty.