Engine management c220cdi

[Salah]

Hi I need some advise on my Mercedes model 2015, engine management light come on after filling up with AD BLUE. Got it checked out local garage and they seem to think it’s the nox sensor. can anyone advise what it can be and also costs to replace. Also today showing only able to drive for certain days before enjine won’t start.
Will Mercedes cover this the cost as it’s seems like 4 year old car should not be going these issues.

 

[Petrol Pete]

Hello and welcome. How many miles on the car ? Does it have a 100% MB main dealer service history ? If yes the answer to your question is still probably No. If it has a Non full MB history the answer to you question is almost defiantly NO.

I would like to be proved wrong. Let us know how you get on with MB.

 

[Salah]

Hello and welcome. How many miles on the car ? Does it have a 100% MB main dealer service history ? If yes the answer to your question is still probably No. If it has a Non full MB history the answer to you question is almost defiantly NO.

I would like to be proved wrong. Let us know how you get on with MB.

Thanks for this the mileage just done over 70K. It has full service history. Would you know how much the nox sensor costs?