W212 e220cdi MAF sensor location?

[Murff]

Hi all,

Can someone tell me where the MAF sensor is located on a W212 220 cdi bluetec is?
Had the engine management light come with lack of ability to drop down gears with pedal as normal- seems something I can check and clean to see if it resolves the issue

Thanks

 

[alecmascot]

I would advise you not to throw parts at this problem.Take the car to an independent Mercedes-Benz specialist who can diagnose the fault properly . It will be cheaper in the long run.

 

[OneForTheRoad]

Hi all,

Can someone tell me where the MAF sensor is located on a W212 220 cdi bluetec is?
Had the engine management light come with lack of ability to drop down gears with pedal as normal- seems something I can check and clean to see if it resolves the issue

Thanks

In the main air pipes to the air filter .

 

[Murff]

In the main air pipes to the air filter .

Thanks, presume easy to remove and clean?

 

[Murff]

I would advise you not to throw parts at this problem.Take the car to an independent Mercedes-Benz specialist who can diagnose the fault properly . It will be cheaper in the long run.

Thanks, I’m just looking for things I can potentially resolve cheaply by myself first, my indie isn’t that much cheaper than the dealer!

 

[OneForTheRoad]

Thanks, presume easy to remove and clean?

If it doesn't come off , remove the complete housing and spray maf cleaner from the inside.

 

[alexanderfoti]

Yes, as above, however, they rarely give issues on these engines.

Even if its with an Icarsoft etc, much better to read the codes and take it from there.

 

[Murff]

If it doesn't come off , remove the complete housing and spray maf cleaner from the inside. View attachment 140150

Thank you so much, appreciate your help

 

[Murff]

Yes, as above, however, they rarely give issues on these engines.

Even if its with an Icarsoft etc, much better to read the codes and take it from there.

Thanks, I’ve ordered a code reader and like you said see what it says, funnily enough the fault resolved itself today but would still like to get to bottom of it