the engine light is on on my ML350 it has been to the mechanic and they say firstly the catalitic converter was blocked then it needs a new cam belt the vehicle has done approximately 50,000 mile


Asked by Sep 10, 2015 at 08:12 AM about the 2007 Mercedes-Benz M-Class

Question type: Maintenance & Repair

ML350 ha the engine light on taken to a mechanic first was that the catalitic converter was blocked then now it needs to have the cam belt replaced does this make sense on a vehicle that has 50,000 miles and was purchased brand new?

8 Answers


Do you know what the code came up on the car???? sounds strange to me as well...



No I do not in fact I had a major service done and subsequently the light came on . The first time I went back they said that the fuel mixture was too rich and then the second time that air filter needed tightening and then the 3 rd time it needed a new cam belt which costs about USD 5,0k


seems like a lot of work for a car that only has 50k on it, I would ask what code came up and you can look it up to see what it is...

1 out of 1 people think this is helpful.

Apologies just before the cam belt need replacement they told me that the catalytic converter was blocked


Is this a dealer?

Tom Harmon

I'm not sure but I think there is a separate warranty for emission related items ~~~ so don't assume because your car is 8 years old that's not covered. Geez, what happened to Mercedes-Benz mechanics? If it were my car ... I would contact a regional office and tell them I intend to put what happened to me on every free web site ,, from Craigslist to the free Ebay classified .~ Mercedes-Benz lifeblood is in their quality and a car needing those repairs with only 50k is a disgrace. I suspect your mechanic was either a trainee or incompetent. ~ Good Luck

1 out of 1 people think this is helpful.

I did go to an agent in fact I reside in South Africa so I am not sure whether I am being fleeced so I will take this to another Mercedes agency for a second opinion.Many thanks

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