Important!
This replacement procedure can be used for:
MERCEDES-BENZ C-Class T-modell (S203) C 320 (203.264), MERCEDES-BENZ C-Class T-modell (S203) C 240 (203.261) View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

Tools
Replacement: mass air flow sensor – MERCEDES-BENZ C-CLASS T-Model (S203). Tools you need:
Electronic spray
Crow bar
Microfibre towel
Fender cover
Replacement: mass air flow sensor – MERCEDES-BENZ C-CLASS T-Model (S203). AUTODOC experts recommend:
  • Сlear the trouble codes from the electronic control unit if necessary.
  • Make sure that no dust or dirt gets into the air duct components and the throttle body.
  • All work should be done with the engine stopped.
Replacement: mass air flow sensor – MERCEDES-BENZ C-CLASS T-Model (S203). Take the following steps:
  1. Step 1
    Open the bonnet.
    Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
    How to change Mass Air Flow Sensor on Mercedes S203 2001 - free PDF and video manuals
    Remove the engine cover.
    AUTODOC recommends:
    Replacement: mass air flow sensor – MERCEDES-BENZ C-CLASS T-Model (S203). Do not use excessive force when removing the part as this may damage it.
  2. Step 4
    How to replace MERCEDES-BENZ C-Class T-modell (S203) C 220 CDI 2.2 (203.208) 2002 Mass Air Flow Sensor - step-by-step manuals and video guides
    Remove the air intake hoses.
  3. Step 5
    Mercedes S203 C 180 1.8 Kompressor (203.246) 2003 Mass Air Flow Sensor replacement: free workshop manuals
    Clean the air filter cover and housing.
  4. Step 6
    Changing Mass Air Flow Sensor on MERCEDES-BENZ C-Class T-modell (S203) C 200 CDI 2.2 (203.207) 2004 by yourself
    Remove the air filter housing.
    AUTODOC recommends:
    Replacement: mass air flow sensor – MERCEDES-BENZ C-CLASS T-Model (S203). Do not use excessive force when removing the part as this may damage it.
  5. Step 7
    How to remove MERCEDES-BENZ C-CLASS C 270 CDI 2.7 (203.216) 2005 Mass Air Flow Sensor - online easy-to-follow instructions
    Detach the mass air flow sensor connector.
  6. Step 8
    How to replace Mass Air Flow Sensor on MERCEDES-BENZ C-Class T-modell (S203) 2006: download PDF manuals and video instructions
    Release the mass air flow sensor retaining clips. Use a crowbar.
  7. Step 9
    How hard is it to do yourself: Mass Air Flow Sensor replacement on Mercedes S203 C 200 1.8 Kompressor (203.242) 2007 - download illustrated guide
    Cover the throttle body with a microfibre towel to prevent dust and dirt from getting into the system.
  8. Step 10
    Need to know how to renew Mass Air Flow Sensor on MERCEDES-BENZ C-CLASS 2001? This free workshop manual will help you to do it yourself
    Clean the mounting seat of the mass air flow sensor.
  9. Step 11
    Changing of Mass Air Flow Sensor on Mercedes S203 2002 won't be an issue if you follow this illustrated step-by-step guide
    Remove the microfibre towel from the throttle body.
  10. Step 12
    MERCEDES-BENZ C-CLASS C 200 2.0 Kompressor (203.245) Mass Air Flow Sensor replacement: online guides and video tutorials
    Release the mass air flow sensor retaining clips. Use a crowbar.
  11. Step 13
    Replacing Mass Air Flow Sensor on Mercedes S203 2004 C 220 CDI 2.2 (203.208) by yourself
    Remove the mass air flow sensor.
  12. Step 14
    C-Class T-modell (S203) C 270 CDI 2.7 (203.216) 2005 Mass Air Flow Sensor DIY replacement workshop manual
    Install a new mass air flow sensor. Make sure you hear a click indicating that it is locked in place.
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