When to replace the Spark Plug on your MERCEDES-BENZ S-CLASS
Recommended replacement interval for the part category Spark plug : 18 month / 30000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ S-Class Saloon (W220) S 320 (220.065, 220.165), MERCEDES-BENZ S-Class Saloon (W220) S 280 (220.063, 220.163), MERCEDES-BENZ S-Class Saloon (W220) S 350 (220.067, 220.167), MERCEDES-BENZ S-Class Saloon (W220) S 350 4-matic (220.087, 220.187) 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: spark plugs – MERCEDES-BENZ S-CLASS (W220) V6. Tools you might need:
Electronic spray
High-temperature anti-seize lubricant
Torque wrench
Torx bit T30
Spark plug socket # 16
Ratchet wrench
Long round nose pliers
Microfibre towel
Fender cover
Replacement: spark plugs – MERCEDES-BENZ S-CLASS (W220) V6. Professionals recommend:
  • The replacement procedure is the same for all spark plugs.
  • All work should be done with the engine stopped.
Replacement: spark plugs – MERCEDES-BENZ S-CLASS (W220) V6. Take the following steps:
  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 Mercedes W220 1998 - free PDF and video manuals
    Remove the engine cover.
    AUTODOC recommends:
    Replacement: spark plugs – MERCEDES-BENZ S-CLASS (W220) V6. Do not use excessive force when removing the part as this may damage it.
  2. Step 4
    How to replace MERCEDES-BENZ S-Class Saloon (W220) S 320 CDI 3.2 (220.026, 220.126) 1999 Spark Plug - step-by-step manuals and video guides
    Remove the air intake hoses.
  3. Step 5
    Mercedes W220 S 320 3.2 (220.065, 220.165) 2000 Spark Plug replacement: free workshop manuals
    Clean the air filter cover and housing.
    Replacement: spark plugs – MERCEDES-BENZ S-CLASS (W220) V6. Tip:
    Before cleaning the air filter cover and housing, cover the air duct parts, mass airflow sensor (if available), throttle valve with a clean cloth.
  4. Step 6
    Changing Spark Plug on MERCEDES-BENZ S-Class Saloon (W220) S 500 5.0 (220.075, 220.175, 220.875) 2001 by yourself
    Remove the air filter housing.
    AUTODOC recommends:
    Do not apply excessive force when removing the part. Otherwise you may damage it.
  5. Step 7
    How to remove MERCEDES-BENZ S-CLASS S 400 CDI 4.0 (220.028, 220.128) 2002 Spark Plug - online easy-to-follow instructions
    Cover the throttle body with a microfibre towel to prevent dust and dirt from getting into the system.
  6. Step 8
    How to replace Spark Plug on MERCEDES-BENZ S-Class Saloon (W220) 2003: download PDF manuals and video instructions
    Unplug the connectors from the ignition coils.
  7. Step 9
    How hard is it to do yourself: Spark Plug replacement on Mercedes W220 S 350 3.7 (220.067, 220.167) 2004 - download illustrated guide
    Remove the spark plug wire connectors from the spark plug wells. Use long round nose pliers.
    Replacement: spark plugs – MERCEDES-BENZ S-CLASS (W220) V6. Tip from AUTODOC:
    Be careful to avoid damaging spark plug wires.Remember the sequence of the spark plug wires connectors.
  8. Step 10
    Need to know how to renew Spark Plug on MERCEDES-BENZ S-CLASS 2005? This free workshop manual will help you to do it yourself
    Unscrew the fasteners of the ignition coils. Use Torx T30. Use a ratchet wrench.
  9. Step 11
    Changing of Spark Plug on Mercedes W220 1998 won't be an issue if you follow this illustrated step-by-step guide
    Take out the ignition coil from the spark plug well.
    Replacement: spark plugs – MERCEDES-BENZ S-CLASS (W220) V6. AUTODOC experts recommend:
    Remember the sequence of steps for ignition coil demounting.
  10. Step 12
    MERCEDES-BENZ S-CLASS S 55 AMG 5.4 (220.073, 220.173) Spark Plug replacement: online guides and video tutorials
    Clean dirt, dust and debris from inside the spark plug wells.
  11. Step 13
    Replacing Spark Plug on Mercedes W220 2000 S 320 CDI 3.2 (220.026, 220.126) by yourself
    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  12. Step 14
    S-Class Saloon (W220) S 400 CDI 4.0 (220.028, 220.128) 2001 Spark Plug DIY replacement workshop manual
    Take out the spark plugs.
  13. Step 15
    How to change Spark Plug on MERCEDES-BENZ S-Class Saloon (W220) 2002 - 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 16
    Step-by-step recommendations for DIY replacement Mercedes W220 2003 S 400 CDI 4.0 (220.028, 220.128) Spark Plug
    Install the new spark plugs into their mounting seats.
  15. Step 17
    DIY replacement of Spark Plug on MERCEDES-BENZ S-Class Saloon (W220) S 320 CDI 3.2 (220.025, 220.125) 2004 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 27 nm torque.
    Replacement: spark plugs – MERCEDES-BENZ S-CLASS (W220) V6. Professionals recommend:
    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.
Was this manual helpful?
Please rate this manual on a scale from 1 to 5. If you have any questions, feel free to ask us.
Users voted – 0
Searching for the right tyres?

Find out which tyre and wheel sizes are compatible with the MERCEDES-BENZ S-Class Saloon (W220) model.

Your profile is your personal assistant.

It can track car expenses, keep a car log and replacement schedule, and save favourite materials, notes and documents

Install the AUTODOC CLUB app!
Your personal car expenses manager, maintenance tips, reminders about upcoming appointments and service intervals, DIY repair instructions – all this on your phone.
MERCEDES-BENZ S-Class Saloon (W220) Spark Plug replace by yourself - Scan QR-code and download AUTODOC CLUB app
Scan

To download the app:

  • - scan the QR code
  • - download from App Store
  • - download from Google Play
Autodoc CLUB App icon
DIY MERCEDES-BENZ S-Class Saloon (W220) Spark Plug replacement - online guide
Tips & tricks for your MERCEDES-BENZ S-Class Saloon (W220)
View more
  • How to change Engine spark plug on MERCEDES-BENZ S-Class Saloon (W220) S 320 CDI 3.2 (220.025, 220.125) - replacement tricks
    How to restore a damaged thread | AUTODOC tips
  • Changing Spark plug Mercedes W220 S 320 CDI 3.2 (220.026, 220.126) - Replacement Tips
    Top 5 tips to prevent car rust | AUTODOC tips
  • Maintenance Hacks - MERCEDES-BENZ S-Class Saloon (W220) S 320 3.2 (220.065, 220.165) Engine spark plugs replacement guide
    How to reduce fuel consumption | AUTODOC
  • Replace Spark plug set on Mercedes W220 - free video tips
    5 tools that make car repair incredibly simple | AUTODOC tips