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 Coupe (E46) 323 Ci, BMW 3 Coupe (E46) 328 Ci, BMW 3 Coupe (E46) 320 Ci, BMW 3 Coupe (E46) 318 Ci, BMW 3 Coupe (E46) 330 xi, BMW 3 Coupe (E46) 320 Ci, BMW 3 Coupe (E46) 325 Ci, BMW 3 Coupe (E46) 316 Ci, BMW 3 Coupe (E46) 318 Ci, BMW 3 Coupe (E46) 316 Ci, BMW 3 Coupe (E46) 330 Ci, BMW 3 Coupe (E46) 320 Ci, BMW 3 Coupe (E46) 318 Ci, BMW 3 Coupe (E46) 318 Ci, BMW 3 Coupe (E46) 323 Ci 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

All the parts you need to replace – Spark Plug for 3 Coupe (E46) and other BMW models
Tools
Replacement: spark plugs – BMW 3 Coupe (E46). Tools you might need:
Electronic spray
High-temperature anti-seize lubricant
Torque wrench
Drive socket # 10
Spark plug socket # 16
Ratchet wrench
Flat screwdriver
Crow bar
Fender cover
Replacement: spark plugs – BMW 3 Coupe (E46). AUTODOC experts recommend:
  • The replacement procedure is the same for all spark plugs.
  • Please note: all work on the car – BMW 3 Coupe (E46) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Open the hood.
    Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
    How to change Spark Plug on BMW E46 Coupe 1999 - free PDF and video manuals
    Unscrew the engine cover fastener. Use a drive socket #10. Use a ratchet wrench.
  2. Step 4
    How to replace BMW 3 Coupe (E46) 330 Ci 2000 Spark Plug - step-by-step manuals and video guides
    Remove the engine cover.
    AUTODOC recommends:
    Replacement: spark plugs – BMW 3 Coupe (E46). To avoid damaging the part when removing it, do not use excessive force.
  3. Step 5
    BMW E46 Coupe 320Ci 2.2 2001 Spark Plug replacement: free workshop manuals
    Unscrew the engine cover fastener. Use a drive socket #10. Use a ratchet wrench. Use a flat screwdriver.
  4. Step 6
    Unscrew the oil filler plug.
    Step 7
    Changing Spark Plug on BMW 3 Coupe (E46) 323Ci 2.5 2002 by yourself
    Remove the oil filler cap.
  5. Step 8
    How to remove BMW 3 SERIES 325 Ci 2003 Spark Plug - online easy-to-follow instructions
    Remove the engine cover.
    AUTODOC recommends:
    Replacement: spark plugs – BMW 3 Coupe (E46). Do not use excessive force when removing the part as this may damage it.
  6. Step 9
    Install the oil filler cap.
    Step 10
    How to replace Spark Plug on BMW 3 Coupe (E46) 2004: download PDF manuals and video instructions
    Tighten the oil filler cap.
  7. Step 11
    How hard is it to do yourself: Spark Plug replacement on BMW E46 Coupe 328 Ci 2005 - download illustrated guide
    Unplug the connectors from the ignition coils. Use a crowbar.
  8. Step 12
    Need to know how to renew Spark Plug on BMW 3 SERIES 2006? This free workshop manual will help you to do it yourself
    Unscrew the fasteners of the ignition coils. Use a drive socket #10. Use a ratchet wrench.
  9. Step 13
    Changing of Spark Plug on BMW E46 Coupe 1999 won't be an issue if you follow this illustrated step-by-step guide
    Take out the ignition coils from the spark plug wells.
    Replacement: spark plugs – BMW 3 Coupe (E46). Tip from AUTODOC experts:
    Remember the sequence of steps for ignition coil demounting.
  10. Step 14
    BMW 3 SERIES M3 Spark Plug replacement: online guides and video tutorials
    Clean dirt, dust and debris from inside the spark plug wells.
  11. Step 15
    Replacing Spark Plug on BMW E46 Coupe 2001 330 Ci by yourself
    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  12. Step 16
    3 Coupe (E46) 325 Ci 2002 Spark Plug DIY replacement workshop manual
    Take out the spark plugs.
  13. Step 17
    How to change Spark Plug on BMW 3 Coupe (E46) 2003 - tips and tricks
    Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
  14. Step 18
    Step-by-step recommendations for DIY replacement BMW E46 Coupe 2004 325 Ci Spark Plug
    Install the new spark plugs into their mounting seats. Use the spark plug socket #16.
  15. Step 19
    DIY replacement of Spark Plug on BMW 3 Coupe (E46) 330Cd 3.0 2005 is not an issue anymore with our step-by-step tutorial
    Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 24 nm torque.
    Replacement: spark plugs – BMW 3 Coupe (E46). AUTODOC recommends:
    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.
  16. Step 20
    How to change Spark Plug on BMW E46 Coupe 1999 - free PDF and video manuals
    Install the ignition coils to the spark plug wells. Make sure you hear a click indicating that it is locked in place.
    Replacement: spark plugs – BMW 3 Coupe (E46). AUTODOC experts recommend:
    Follow the installation sequence.
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DIY BMW 3 Coupe (E46) Spark Plug replacement - online guide
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