Problem with my A140

[Mark weaver]

Hi Guys


I have a A140 as the title lol

I keep getting engine management light up all the time and when i reset it, it comes up again soon as i start up.

Done a diagnostics test on it and it keeps coming up with the code P0100 which is "MAF or VAF A Circuit Malfunction".

I don't know what this could be but i was just wondering if anybody has had this or could shed some light on this.


Thanks

Mark

 

[colechelle]

Ah yes, that my man is the air mass sensor, built into the engine ecu, shed loads to replace, company's around who can repair them, somebody will prob tell you who soon!!!!

 

[Mark weaver]

Thanks for that

More money as usual.

 

[jibcl500]

http://www.carclinicmagazine.com/mercedes_common_ecu_failures.html

Dont be tempted to buy a used MAF as they are coded to the chassis of your car so thye wont work.

jib

 

[Mark weaver]

I have been reading about that.

I just found that site, that seems to be the best one so far

 

[dustcap]

re management light

you may just have a air leak in the intake system, as the maf detects any difference in pressure could trigger the light to come on.
ps how did you reset the management light ?