Important!
This replacement procedure can be used for:
BMW 3 Touring (E46) 320 d, BMW 3 Touring (E46) 330 d, BMW 3 Touring (E46) 330 xd, BMW 3 Touring (E46) 320 d, BMW 3 Touring (E46) 318 d, BMW 3 Touring (E46) 318 d View more

The steps may slightly vary depending on the car design.

How to change mass air flow sensor on BMW E46 Touring [TUTORIAL AUTODOC]

video
All the parts you need to replace – Mass Air Flow Sensor for 3 Touring (E46) and other BMW models
How to change Mass air flow sensor on BMW 3 Touring (E46) 320d 2.0 – step-by-step instructions for straightforward car repair Mass air flow sensor
How to change MAF sensor on BMW 3 Touring (E46) 320d 2.0 – step-by-step instructions for straightforward car repair MAF sensor
Tools
Replacement: mass air flow sensor – BMW E46 Touring. List of the tools you'll need:
Electronic spray
Torque wrench
Drive socket # 12
HEX bit No.H5
Torx bit T25
Torx bit T30
Ratchet wrench
Microfibre towel
Fender cover
Replacement: mass air flow sensor – BMW E46 Touring. 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.
  • Please note: all work on the car – BMW E46 Touring – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    How to change Mass Air Flow Sensor on BMW 3 Touring (E46) 1999 - free PDF and video manuals
    Open the bonnet.
  2. Step 2
    How to replace BMW 3 Touring (E46) 320d 2.0 2000 Mass Air Flow Sensor - step-by-step manuals and video guides
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
  3. Step 3
    BMW 3 Touring (E46) 320i 2.2 2001 Mass Air Flow Sensor replacement: free workshop manuals
    Unscrew the engine cover fastener. Use HEX No.H5. Use a ratchet wrench.
  4. Step 4
    Changing Mass Air Flow Sensor on BMW 3 Touring (E46) 318 i 2002 by yourself
    Remove the engine cover.
    AUTODOC recommends:
    Replacement: mass air flow sensor – BMW E46 Touring. Do not use excessive force when removing the part as this may damage it.
  5. Step 5
    How to remove BMW 3 SERIES 330d 3.0 2003 Mass Air Flow Sensor - online easy-to-follow instructions
    Unscrew the fasteners of the air distribution housing assembly. Use a drive socket #12. Use a ratchet wrench.
  6. Step 6
    How to replace Mass Air Flow Sensor on BMW 3 Touring (E46) 2004: download PDF manuals and video instructions
    Remove the air distribution housing assembly.
  7. Step 7
    How hard is it to do yourself: Mass Air Flow Sensor replacement on BMW 3 Touring (E46) 330xd 2.9 2005 - download illustrated guide
    Release the cabin filter cover clips.
  8. Step 8
    Need to know how to renew Mass Air Flow Sensor on BMW 3 SERIES 1999? This free workshop manual will help you to do it yourself
    Remove the cabin filter cover.
  9. Step 9
    Changing of Mass Air Flow Sensor on BMW 3 Touring (E46) 2000 won't be an issue if you follow this illustrated step-by-step guide
    Remove the cabin filter.
    Replacement: mass air flow sensor – BMW E46 Touring. Tip from AUTODOC:
    Do not attempt to clean and reuse the filter - it will affect the quality of air cleaning inside the car.
  10. Step 10
    BMW 3 SERIES 330xi 3.0 Mass Air Flow Sensor replacement: online guides and video tutorials
    Unscrew the fasteners of the cabin filter housing. Use Torx T30. Use a ratchet wrench.
  11. Step 11
    Replacing Mass Air Flow Sensor on BMW 3 Touring (E46) 2002 320d 2.0 by yourself
    Remove the cabin filter housing.
  12. Step 12
    3 Touring (E46) 330d 3.0 2003 Mass Air Flow Sensor DIY replacement workshop manual
    Unscrew the engine cover fastener. Use HEX No.H5. Use a ratchet wrench.
  13. Step 13
    How to change Mass Air Flow Sensor on BMW 3 Touring (E46) 2004 - tips and tricks
    Remove the engine cover.
    AUTODOC recommends:
    Replacement: mass air flow sensor – BMW E46 Touring. To avoid damaging the part when removing it, do not use excessive force.
  14. Step 14
    Remove the air distribution housing assembly.
    Step 15
    Step-by-step recommendations for DIY replacement BMW 3 Touring (E46) 2005 330d 3.0 Mass Air Flow Sensor
    Remove the filter element from the filter housing.
  15. Step 16
    DIY replacement of Mass Air Flow Sensor on BMW 3 Touring (E46) 330d 2.9 1999 is not an issue anymore with our step-by-step tutorial
    Unscrew the fasteners that connect the air duct to the MAF sensor. Use HEX No.H5. Use a ratchet wrench.
  16. Step 17
    How to change Mass Air Flow Sensor on BMW 3 Touring (E46) 1999 - free PDF and video manuals
    Remove the air duct.
  17. Step 18
    How to replace BMW 3 Touring (E46) 320d 2.0 2000 Mass Air Flow Sensor - step-by-step manuals and video guides
    Cover the air intake hose with a microfibre towel to prevent dust and dirt from getting into the system.
  18. Step 19
    BMW 3 Touring (E46) 320i 2.2 2001 Mass Air Flow Sensor replacement: free workshop manuals
    Detach the mass air flow sensor connector.
  19. Step 20
    Changing Mass Air Flow Sensor on BMW 3 Touring (E46) 318 i 2002 by yourself
    Unscrew the MAF sensor fasteners. Use Torx T25. Use a ratchet wrench.
  20. Step 21
    How to remove BMW 3 SERIES 330d 3.0 2003 Mass Air Flow Sensor - online easy-to-follow instructions
    Remove the mass air flow sensor.
  21. Step 22
    How to replace Mass Air Flow Sensor on BMW 3 Touring (E46) 2004: download PDF manuals and video instructions
    Install a new mass air flow sensor.
  22. Step 23
    How hard is it to do yourself: Mass Air Flow Sensor replacement on BMW 3 Touring (E46) 330xd 2.9 2005 - download illustrated guide
    Tighten the MAF sensor fasteners. Use Torx T25. Use a torque wrench. Tighten it to 8 Nm torque.
  23. Step 24
    Remove the microfibre towel from the air intake hose.
    Step 25
    Need to know how to renew Mass Air Flow Sensor on BMW 3 SERIES 1999? This free workshop manual will help you to do it yourself
    Install the air duct.
  24. Step 26
    Changing of Mass Air Flow Sensor on BMW 3 Touring (E46) 2000 won't be an issue if you follow this illustrated step-by-step guide
    Tighten the fasteners that connect the air duct to the MAF sensor. Use HEX No.H5. Use a torque wrench. Tighten it to 5 Nm torque.
  25. Step 27
    BMW 3 SERIES 330xi 3.0 Mass Air Flow Sensor replacement: online guides and video tutorials
    Treat the mass air flow sensor connector. Use dielectric grease.
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DIY BMW 3 Touring (E46) Mass Air Flow Sensor replacement - online guide
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