CALLING RS5 OWNERS: Catalytic Converters Failing

Didn't Dartmin have this issue with his falling apart? i believe he had to by new ones?

already spoke to ben about it

oh i see lol I've only just seen when this was posted did you get it resolved in the end mate? you've had your rs5 for ages now you not getting bored of it yet?

Both were replaced between Audi and the warranty company ! - the other side was showing signs of failing as well !

Not bored yet - plus not sure what I would replace it with !

Oh really i thought you had to pay for them well thats a result then i take it you haven't had any issues with mot's then? yeah thats the predicament i was in.. the new generation of the a5 should be available soon I'm guessing it a hard choice.. you have done well... they are brilliant tho.. just was no longer practical for me with a growing child...cant believe horus had sold his as his was really nice I'm shocked he's gone to jaguar. do you think you'll stick with audi?

What is the quickest way to get this diagnosed and fixed under warranty? I don't have any bits coming out, but the same smells and rattles as my first RS5

MOT emissions test

Cool thanks. I am obliged to sort that immediately if it fails? MOT not due till January.

Nope

dartmin said:

MOT emissions test

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Hi,
I got the engine light, shows P0420 code, took code off, went to MOT garage the emmisions is fine. But 100 miles later again the engine light came on. What you guys think ?
Thanks

AKB said:

Hi,
I got the engine light, shows P0420 code, took code off, went to MOT garage the emmisions is fine. But 100 miles later again the engine light came on. What you guys think ?
Thanks

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Check for debris coming out of the exhaust, especially after reviewing the car at a stand still. You will be looking for white sand like stuff along with chorky chunks and cotton like flakes.
Check out my video where one catexploded on me, later on I went on to gutting the other one, by removing the firewall in the engine and removing the lambda sensors and poking rods and hard wire cables to smash up the remaining cat on the other back, and revving the sh##*out of te car to get it all out after refitting everything.

this is the video:

Obviously get the cars ecu tuned to run without cats, it will boost you’re cruising mpg as a bonus.

I have a b8 RS5 and the cats rattled out/failed , did u pass MOT with no cats? Thanks paul

Paul I dont think so mate no cos you will be emitting too much CO. But to be sure take your car to an MOT tester and get the gases checked, could be ok. Good luck!!!!

Hi, it didnt pass with no cats, hydrocarbons/unburnt fuel was fine, lambda was fine, CO was 5 times the limit! I put 200 cell sports cats in on the down pipes with v bands so easily swap in and out for straight pipe, it passed the mot with the sports cats but did have to get them fairly hot too pass! All good in the end though