Diesel catalysts

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davewithington
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Diesel catalysts

Post by davewithington »

I'm confused. When I was underneath today, I noticed corrosion on my exhaust box - not enough to need replacement, but it got me thinking about replacement costs.

Looking on the net, most suppliers list the Xantia TD as having a catalyst, but I wouldn't have expected my 1993 car to have one, and I can't see one on the pipe.

Not fitted to diesels are they?
wright
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Post by wright »

eu reg since 1992 that petrol cars had to have a cat, not sure about diesels
02 C5 2.0 hdi 110
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Xaccers
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Post by Xaccers »

Later diesels including the Xantia were fitted with cats.
Cassy had one when I first got her.
When it came time to replace that pipe, I just picked a cat less one from an earlier model.
Was something like £35 plus postage, from online automotive.

It's not a legal requirement for diesels, so definitely get the catless pipe.
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davewithington
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Post by davewithington »

That's what I thought Xac.
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Post by Dommo »

My '97 1.9TD has one straight pipe with no cat or box from the turbo right up to the back box.. Nice and cheap should it need replacing!
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Post by davewithington »

I've been looking at prices - definitely cheap, not much more than an exhaust for the 2CV
citronut
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Post by citronut »

not only cheap but if your car has a cat and you de/cat it, you will be amazed at the diference in get up and go,


i too have de/catted my R reg 1.9TD,


regards malcolm
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Gregg1100
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Diesel catalysts

Post by Gregg1100 »

Got my straight through cat less pipe from GSF. Car is far better and more economical too.

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cat

Post by allanmc »

I have a wee question about whether you need a cat or not, my son has a 2005 Puegeot 406 110 hdi which needed an exhaust system and the garage told him that it had to have a cat, I have a 2000 Xantia 110 hdi and have been told that I dont need one can someone clarify this for me please.
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Post by RichardW »

No MOT requirement (yet) for diesels to retain their catalysts. If the 406 is fitted with a FAP however, then removing it is a bit more involved then just chopping the cat out a la earlier cars.... Possible though that there is no de-cat pipe for a 406, but a few minutes with angle grinder and MIG should see to that if you can get a straight pipe of the right diameter :lol:
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Post by citroenxm »

DERVs - certainly earlyer ones, in the 8v HDi houses do NOT need a Cat, My 1999 V reg HDi is De-cat-ed.. and the emmisions - well - smoke test was stunningly low...

Mines had the "Mig and straight pipe" job done to it also... you can tell, the "Added" pipe has rusted much quicker then the rest of the pipe... :lol:


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citronut
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Post by citronut »

i think it depends realy how much the electronics rely on the in/output readings of the cat and asociated sensors,

basicly i belive the newer diesels require it just to keep them running happy,

regards malcolm
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cat

Post by allanmc »

Thanks for getting back so quickly when mine needs an exhaust I wont be paying for a cat
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Post by citronut »

have a look here

http://www.catalogue.bosal.com/pages/ex ... del=Xantia


scroll down and you will see the straight through pipe


regards malcolm
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Post by bxzx16v »

Had a non-cat front pipe fitted to my 1.9td Xantia a few years ago and it ran like a dream , recently had a stainless system fitted to a 1.9jtd fiat doblo van and that was awesome , the jtd is a fantastically good engine to start but with the decat it was very nippy

Mark
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