p200a p2029

[hotdogs]

Hi guys, I'm hoping anybody can help me please?

I have a 2003 c200 kompressor automatic that is currently running a bit 'lumpy' when it is stationary. No problems driving, just at stop lights etc.

The diagnostic test gave back the following codes,
P200A? - something to do with hot film mass air flow sensor?
P2029? - format self adaptation?

Can anybody advise what course of action to take?

Thanks

 

[rpe2]

Welcome!

On the basis of what you have said, it sounds like the Air Mass sensor is suspect.

Try Eurocarparts for a replacement, or a dealer. Don't try a cheapie ebay one.

 

[hotdogs]

Would this be what I'm looking for?

http://www.eurocarparts.com/ecp/c/M...c7e05502e9ac34e783880d8d7dd1f878078e05&000009

 

[rpe2]

That's it.

Just check with a MB dealer first in case they are cheaper.

In some cases you can prove the point by unplugging the sensor to get the engine to run onto a default map.

 

[hotdogs]

Sorry to drag this thread up, I've been away for 5 weeks.
Going to replace this air mass meter next week, just wanted to know what is the difference other than the huge gap in price between this?

http://www.ebay.co.uk/itm/Air-flow-...-C-class-5WK9638-/370297111159#ht_6759wt_1110

And the one from euro car parts? Is this option too good to be true?

 

[Cole@MBS]

Going on that fault code, i would guess the pipe above and or the pipe and valve under the supercharger has spilt......

 

[hotdogs]

Going on that fault code, i would guess the pipe above and or the pipe and valve under the supercharger has spilt......

What does this mean to an engine novice like myself? :/

 

[Cole@MBS]

Get it to someone who knows the engine, changed a set of pipes the other day after another garage had the car for a week and charged the owner shed loads without fixing it.......

 

[hotdogs]

Do you agree I should change the air mass meter still?
And if yes, do you know anything about the one i posted from ebay?

Thanks for the advice!

 

[Cole@MBS]

This engine is one of the less lumps which needs a airmass sensor, get the said pipes checked first, cost you less money!!!

Never buy a airmass of ebay......

 

[hotdogs]

Is eurocar parts the only place to get the air mass filter from then?

Have I mentioned the engine management light on the dash is on also?

 

[Cole@MBS]

Nope, we never use them for reasons i am not gonna post on here, we only use a bosch outlet.......

I dout if you need a airmass on that engine you have......

 

[hotdogs]

I'm trying to learn as much as I can myself so I can become a more competent DIY mechanic!

I've done a lot of reading and everything points to the MAF sensor, some people recommend cleaning it?
What are the pipes you mentioned before? Is there anywhere I can find a diagram of what to look for?
Also, are you allowed to mention the bosch outlet you use n here or is that against forum rules?

Thanks for the help!

 

[Cole@MBS]

The pipe in question which i no is your fault, is under the air cleaner box, sorry but not a job for the DIY guy, most garages miss this simple pipe/s.....

Just do a web search for a bosch outlet on line.......

 

[hotdogs]

The pipe in question which i no is your fault,

The pipe is 'my' fault? What do you mean?

 

[drdre78]

pipe probley got a hole in it.wouldnt waste money on air mess sensor until check the rubber pipes under air box.if get torch and shine it under air box might see it.but will need to take off air box to change them.Get it check other wise it lead to bigger problems

 

[Cole@MBS]

pipe probley got a hole in it.wouldnt waste money on air mess sensor until check the rubber pipes under air box.if get torch and shine it under air box might see it.but will need to take off air box to change them.Get it check other wise it lead to bigger problems

Been saying that all night!!!!!!!

 

[Steve@Avantgarde]

There is a distinct difference between hearing and listening though Cole........

 

[rpe2]

The pipe is 'my' fault? What do you mean?

Colin is contending that the pipe [sic] under the air filter box is causing the symptoms that you are experiencing on your car.

He doubts very much indeed whether it is that MAF that is at fault.

Hope that is clear. :-|

 

[hotdogs]

FML, I understand now. I didn't read the previous comments correctly.

Thanks for the help