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Robert, UK Qualified Car Technician
Category: Car
Satisfied Customers: 4638
Experience:  Fully qualified / self employed garage technician in the UK
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my catalytic converter light is on my 2005 c180 coupe at 45000

Resolved Question:

my catalytic converter light is on my 2005 c180 coupe at 45000 klms ? would a cleaning agent sort it ?
Submitted: 3 years ago.
Category: Car
Expert:  Robert replied 3 years ago.


Hopefully i can help..

Normally cleaning agents wont work - depending on the nature of the fault in regards ***** ***** cat converter or emissions fault - taking it off and cleaning has mixed results and normally ends up having it replaced anyway..what has to be done is a full diagnostic test/live testing as well as a exhaust gas machine on the car to see if this cat converter problem isnt a knock on effect from another fault like a missfire/injector fault or problems with the lambda sensors on the exhaust system that monitor the gases or even a leak in the exhaust system itself around the cat as above thats about the next step from here,proper testing before condeming the cat converter and buying a new one..I do hope this helps

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Customer: replied 3 years ago.

sorted out


thank you