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Kez



Member Since: 11 Apr 2011
Location: UK
Posts: 271
Isle Of Man 
MOT - wot no cat?
Looking at the paperwork that came with my new landie, I see it had its centre box and catalytic converter removed by first owner Shocked I only know because main dealer put a note saying it 'may void warrantee' on the service receipt. Yet it passed its next MOT the following year fine, which puzzles me as I assumed you had to have a cat in order to meet emissions - anyone else have experiance of catfree MOT's
Post #67646 17th Apr 2011 7:58am
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nosnibod



Member Since: 15 Aug 2007
Location: West Midlands
Posts: 370
United Kingdom 1998 Defender 110 300 Tdi SW Bronze Green
The MOT test for diesels in the UK only checks for smoke density, not emissions as such. The catalytic converter does nothing for smoke density so it can be removed with no problems at all.

For petrols it's rather different and the MOT does measure nasty gases that the catalytic converter reduces. Dave
Green Goddess - 1998 Defender 110 300tdi
Post #67647 17th Apr 2011 8:59am
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Dave-H



Member Since: 08 Feb 2011
Location: Surrey
Posts: 1507
England 2007 Defender 90 Puma 2.4 HT Tonga Green
As above Smile
A cat served no useful purpose on a diesel system and it isnt a requirement to have one fitted.
Most diesels run better with the cat removed as it free's up the gas flow from engine Guns and Landrovers .... anything else is irrelevant.
Post #67653 17th Apr 2011 9:39am
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Kez



Member Since: 11 Apr 2011
Location: UK
Posts: 271
Isle Of Man 
Thank both, was having a minor panic for a while there - pheww Thumbs Up
Post #67657 17th Apr 2011 11:06am
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