C250 Mass air flow sensor

OP
G

Geelster

New Member
Joined
Oct 7, 2020
Messages
8
Reaction score
0
Your Mercedes
C250d
  • Thread Starter
  • Thread starter
  • #2
My C250 had an engine management light coming in. The mechanic said the fault code was the mass air Flow sensor so I had it Replaced.
The Light is still on. I noticed Another thread on this but no conclusion.
Any help greatly appreciated.
 

star

Forum Supporter
Authorised Forum Supporter
Joined
Oct 6, 2004
Messages
6,266
Reaction score
1,960
Location
Reading
Your Mercedes
Smart + others :)
Never had to replay one yet. Get a proper diagnosis on a star system.
 

mioba

Senior Member
Joined
Feb 19, 2006
Messages
8,263
Reaction score
4,977
Location
Nottingham and Köln
Your Mercedes
W124/E200, W220/S320CDI, W205/C200, W251/R350CDI 4Matic
Replace your mechanic.
did he reset the EML.
 
OP
G

Geelster

New Member
Joined
Oct 7, 2020
Messages
8
Reaction score
0
Your Mercedes
C250d
  • Thread Starter
  • Thread starter
  • #5
I don’t know, what’s the EML?
 

Blobcat

Moderator
Joined
Feb 8, 2006
Messages
40,168
Reaction score
29,818
Location
Grange Moor
Your Mercedes
R171 SLK280, Smart R451, Land Rover 110 County SW, 997 C2S, R1250 GSA TE 40th, CBR600FP
OP
G

Geelster

New Member
Joined
Oct 7, 2020
Messages
8
Reaction score
0
Your Mercedes
C250d
  • Thread Starter
  • Thread starter
  • #7
Of course! Blonde moment. I’ll check with the “new” mechanic, thanks
 
OP
G

Geelster

New Member
Joined
Oct 7, 2020
Messages
8
Reaction score
0
Your Mercedes
C250d
  • Thread Starter
  • Thread starter
  • #8
The issue was that the sensor needed calibrated. I guess they don’t come “set” and possibly differ for every engine management system (very slightly).
 


GAD was founded in 2009 where we developed bespoke ECU Remapping software for motorsport clients, moving forward, we have extended to road vehicles for both performance and economy,
contact GAD Tuninghttp://www.GADTuning.co.ukto discuss your requirements.
Top Bottom