Unfortunately that time has come when my original cat has started to show the signs of failure and so I wanted to canvas others opinions on OEM replacements and patent Cats.

MB have quoted 1400UKP which is ok should you wish to keep the car for another 15 years and is probably reasonable value, however I can't plan that far in advance so I'm looking for a quality replacement at an economic price.

It's firstly a single box three way unit (thankfully) and the gas analysis shows a perfect lambda (1.000, fluctuating +/- 0.002) so I assume that the lambda sensor and control system is fine. However CO is around 0.2 to 0.5 fluctuating (even after giving the car a pounding) and here in the UK the limit has just been reduced from 0.3 to 0.2!

Has anyone experience of OEM (who is the OEM?) or patent (third party manufacturer's) replacements?

Although this is a cross post from the SL forum I feel it's slightly justified as Cats are really quite general.


Any thoughts chaps?
Lea

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'93 R129 500SL-32
'89 190E 2.6 - sold in 2002

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