Cat buzzing & car out of warranty

[ak_uk]

Well, thats the situation. Im aware that the cat is about £800 - based upon people paying £200ish @ a 20% contribution.... What should I do? A de-cat would be the cheapest option but there is the problem of the "post" lambda sensor - isnt there? Ive also got the twin cat exhaust.... Spoke to Nick @ HP earlier in the year but I dont think he had one off the shelf.....K-tec racing dont say if theirs is mk2 compatible....there is also the question of the noise increase - if there is. Its already quite vocal with the Powerflow....

The current buzzing bugs me and I dont think Ill be able to get the dealer to do anything about it. What pisses me off is the fact Renault CS told me I had another 17 months warranty after I quoted the chassis # this time last year. Called up this year "just to check" and was told it ran out 29/11 last year...AARRGGHH.......if only I had known....even found the post I made when I got the "good" news last year.

 

[chris172]

The major problem arises when its M.O.T. time if you decat it.

Dont think the extra noise will be that noticable tho if you do decat it.

 

[Ben H]

There is no law saying that you need to have a cat fitted. BUT, there is a law saying that your car must pass a certain emmissions test at MOT time and a cat most often helps to get the emmissions below the requied level. A small number of cars actually pass the emmissions test without a cat fitted.

Going on my experience, yes you will notice the noise difference with a de-cat pipe!

Have you checked the gaskets between the cat and the downpipe/rest of the exhaust? That might be causing the buzzing.

 

[ak_uk]

Ben H: No, I had Kwik Fit stand underneath the car while I tokk it near the limiter...Im pretty sure its the 172 4k buzzing problem. I had it replaced about 2 months after having the car - it came back!

Not too concerned about the MOT as I have another 22 months before that - its more to do wih the fact that Im concerned how the ECU will beahave without its sensor(s).......

Now its out of warranty, I cant afford to make a mistake.

 

[Robby]

so if youve got 22 months till you mot the car must be 14 months old? if this is the case your warranty should still be valid as its for 3 years.

i had my cat replaced under warranty this week, car registered 11/01

 

[ak_uk]

Robby: Mines an import registered in the UK, 12/01/02 - registered with the dealer, 29/11/01 - apparently.......their (Renault CS) stance is that as it was a pre 01/01/02 car it only comes with 1 years warranty as opposed to 01/01/02 onwards which have at least a 2 year pan-european warranty....

My only hope is that they just do it if I book it in.....