Smelly Cat? E55 owners

[nickjonesn4]

Morning All - hope good weekends have been had all round.

Car has developed a nasty sulphury smell in the cabin at low speed. In anyone's experience... is this going to be down to an issue with the secondary cats? Primary cats were removed when headers done but problem has just materialised.

Any help much apprecio

 

[Allan AMG]

Sorry :bannana:

 

[nickjonesn4]

Sorry :bannana:

Ha. Was about the only funny bit of all 150,000 episodes of Friends!

 

[John]

My suspicion is you have a leak somewhere before your secondaries.

Leaded petrol cars stink without CATs.

 

[John]

Unleaded

The reason I think the above is because without secondaries, at slow speed, it never stinks in the cabin...

 

[nickjonesn4]

So - all good now I'm glad to report. Had it all checked out at Garage | Klasse Series Automotive and the smell appears to have gone. They reckon it was some unburnt fuel had got into the Cat most likely from too much throttle being applies before the engine was warm. The smell was this burning off which it appears to have successfully done as smell is gone.

I'm blaming Mrs Jones.