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Author Topic: Rattling catalyst - is it MOT failure or merely advisory?  (Read 983 times)

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terry paget

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Rattling catalyst - is it MOT failure or merely advisory?
« on: 15 February 2017, 13:25:28 »
2.5 petrol maniual estate

s
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terry paget

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Re: Rattling catalyst - is it MOT failure or merely advisory?
« Reply #1 on: 15 February 2017, 13:32:03 »
2.5 petrol manual estate.

Checking V828 prior to MOT, I notice a rattling from n/s catalytic converter. If it passes the emission test, will it pass its MOT in this condition?.






























vrr.28 My   
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Doctor Gollum

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Re: Rattling catalyst - is it MOT failure or merely advisory?
« Reply #2 on: 15 February 2017, 13:50:43 »
If it's leak free and meets the emission requirements, then it should be a clean pass ;)
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Kevin Wood

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Re: Rattling catalyst - is it MOT failure or merely advisory?
« Reply #3 on: 15 February 2017, 15:10:04 »
Would be worth checking if the rattle is from the inside of the cat or the heatshields, which do start to come loose eventually. Sometimes a jubilee clip round them, or similar, will quieten them.

But yes, MOT criteria are that it's free of leaks, securely mounted and passes the emissions checks.
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