When to replace the Spark Plug on your BMW 3 SERIES
Recommended replacement interval for the part category Spark plug : 18 month / 30000 km
Important!
This replacement procedure can be used for:
BMW 3 Convertible (E46) 318 Ci, BMW 3 Convertible (E46) 318 Ci View more

The steps may slightly vary depending on the car design.

How to change spark plug on BMW 3 (E46) [TUTORIAL AUTODOC]

video
All the parts you need to replace – Spark Plug for 3 Convertible (E46) and other BMW models
Tools
Replacement: spark plugs – BMW E46 convertible. Tools you might need:
Electronic spray
High-temperature anti-seize lubricant
Torx bit T20
Spark plug socket # 16
Ratchet wrench
Torque wrench
Telescoping magnet
Crow bar
Fender cover
Replacement: spark plugs – BMW E46 convertible. Professionals recommend:
  • The replacement procedure is the same for all spark plugs.
  • Warning! Shut down the engine before starting any work – BMW E46 convertible.
Carry out replacement in the following order:
  1. Step 1
    How to change Spark Plug on BMW 3 Convertible (E46) 2000 - free PDF and video manuals
    Open the hood.
  2. Step 2
    How to replace BMW 3 Convertible (E46) 330 Ci 2001 Spark Plug - 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 Convertible (E46) 320Ci 2.2 2002 Spark Plug replacement: free workshop manuals
    Unscrew the fasteners of the cabin filter housing cover.
  4. Step 4.1
    Changing Spark Plug on BMW 3 Convertible (E46) 318Ci 2.0 2003 by yourself
    Raise a little the cabin filter housing cover.
    Step 4.2
    How to remove BMW 3 SERIES 323Ci 2.5 2004 Spark Plug - online easy-to-follow instructions
    Remove the cabin filter.
    Replacement: spark plugs – BMW E46 convertible. AUTODOC experts recommend:
    To avoid damaging the cabin filter cover, do not remove it before removing the filtering element.
  5. Step 5
    How to replace Spark Plug on BMW 3 Convertible (E46) 2005: download PDF manuals and video instructions
    Remove the rubber strip.
  6. Step 6
    How hard is it to do yourself: Spark Plug replacement on BMW 3 Convertible (E46) 320Cd 2.0 2006 - download illustrated guide
    Remove the cabin filter housing cover.
  7. Step 7
    Need to know how to renew Spark Plug on BMW 3 SERIES 2007? This free workshop manual will help you to do it yourself
    Disconnect the wiring harness from the cabin filter housing.
  8. Step 8
    Changing of Spark Plug on BMW 3 Convertible (E46) 2000 won't be an issue if you follow this illustrated step-by-step guide
    Unscrew the filter housing fastening bolts. Use Torx T20. Use a ratchet wrench.
  9. Step 9
    BMW 3 SERIES 330Cd 3.0 Spark Plug replacement: online guides and video tutorials
    Remove the cabin air filter housing.
  10. Step 10
    Replacing Spark Plug on BMW 3 Convertible (E46) 2002 330 Ci by yourself
    Unscrew the oil filler plug.
  11. Step 11
    3 Convertible (E46) 323Ci 2.5 2003 Spark Plug DIY replacement workshop manual
    Remove the engine cover.
  12. Step 12
    How to change Spark Plug on BMW 3 Convertible (E46) 2004 - tips and tricks
    Tighten the oil filler cap.
  13. Step 13
    Step-by-step recommendations for DIY replacement BMW 3 Convertible (E46) 2005 323Ci 2.5 Spark Plug
    Unplug the connectors from the ignition coils.
  14. Step 14
    DIY replacement of Spark Plug on BMW 3 Convertible (E46) 325 Ci 2006 is not an issue anymore with our step-by-step tutorial
    Take out the ignition coil from the spark plug well. Use a crowbar.
    Replacement: spark plugs – BMW E46 convertible. Tip:
    Remember the sequence of steps for ignition coil demounting.
  15. Step 15
    How to change Spark Plug on BMW 3 Convertible (E46) 2000 - free PDF and video manuals
    Clean dirt, dust and debris from inside the spark plug wells.
  16. Step 16
    How to replace BMW 3 Convertible (E46) 330 Ci 2001 Spark Plug - step-by-step manuals and video guides
    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  17. Step 17
    BMW 3 Convertible (E46) 320Ci 2.2 2002 Spark Plug replacement: free workshop manuals
    Take out the spark plugs. Use a telescoping magnet.
  18. Step 18
    Changing Spark Plug on BMW 3 Convertible (E46) 318Ci 2.0 2003 by yourself
    Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs. Treat the surface of the terminals of the new spark plugs. Use high-temperature grease.
  19. Step 19
    How to remove BMW 3 SERIES 323Ci 2.5 2004 Spark Plug - online easy-to-follow instructions
    Install the new spark plugs into their mounting seats.
  20. Step 20
    How to replace Spark Plug on BMW 3 Convertible (E46) 2005: download PDF manuals and video instructions
    Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 27 nm torque.
    Replacement: spark plugs – BMW E46 convertible. Tip from AUTODOC experts:
    Don't tighten the plugs with excessive force. Exceeding tightening torque can damage the thread connection. Be careful when working with a spark plug wrench. Its skewing can cause damage to the threaded connection.
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DIY BMW 3 Convertible (E46) Spark Plug replacement - online guide
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