Vehicle & Technical > Discovery
MOT question - Do I need a catalytic converter in my 95 300TDi for the MOT??
mentalmoshio sophs V8i:
cars up to august 95 can without cat but must be able to pass an emissions test. after then they must be on there. if u don't believe me check with the m.o.t guy at the garage
freeagent:
well we shall find out on Saturday at my MOT as mine is a june 1996 model, and i binned the CAT last week... after my MOT inspector suggested it.
stageonesimmo:
--- Quote from: mentalmoshio sophs V8i on January 06, 2008, 20:14:44 ---cars up to august 95 can without cat but must be able to pass an emissions test. after then they must be on there. if u don't believe me check with the m.o.t guy at the garage
--- End quote ---
I think you'll find that's petrols only.........
freeagent:
well, the definative answer is yes, your disco will pass its MOT with the CAT removed.
My 1996 300Tdi passed on saturday, it flew through the emissions test and received no comments from the tester.
Xtremeteam:
--- Quote from: stageonesimmo on January 04, 2008, 00:21:59 ---
--- Quote from: freeagent on January 03, 2008, 22:09:11 ---its not a CAT, its a particulate filter
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Sigh, what do I know eh?............
Look at the parts list or the manual and it'll tell you clear as day its a cat. Look on nay of the exhaust suppliers lists - again, its a cat. The main reason for the confusion is the lack of Lambda sensor - its not needed on a diesel as theres no method of altering the ignition map as a result of the feed-back from the sensor - hence the EGR as its the only way to clean things up effectively - its there to cut down on the particulates (and NOx) the the cat cant deal with as thats not its job - if it was a particulate filter there'd be no need for EGR........
But, like I said, what do I know, I've only been fixing the things for 20 years and Mot'ing them for 15............
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its not a cat, its a particulate filter,
having served my time working on them both as a paid job & also a hobby you can argue the point but its not a cat :police:
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