When to replace the Spark Plug on your MERCEDES-BENZ A-CLASS
Recommended replacement interval for the part category Spark plug : 18 month / 30000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ A-Class (W168) A 140 (168.031, 168.131), MERCEDES-BENZ A-Class (W168) A 190 (168.032, 168.132), MERCEDES-BENZ A-Class (W168) A 140 (168.031, 168.131), MERCEDES-BENZ A-Class (W168) A 210 (168.035, 168.135) View more

The steps may slightly vary depending on the car design.

How to change spark plug on MERCEDES-BENZ A160 (W168) [TUTORIAL AUTODOC]

video
Tools
Replacement: spark plugs – Mercedes W168. Tools you need:
High-temperature anti-seize lubricant
Drive socket # E11
Drive socket # 16
Ratchet wrench
Torque wrench
Fender cover
Replacement: spark plugs – Mercedes W168. AUTODOC experts recommend:
  • The replacement procedure is the same for all spark plugs.
  • All work should be done with the engine stopped.
Replacement: spark plugs – Mercedes W168. Recommended sequence of steps:
  1. Step 1
    How to change Spark Plug on Mercedes W168 1997 - free PDF and video manuals
    Open the hood.
  2. Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
    How to replace MERCEDES-BENZ A-Class (W168) A 140 1.4 (168.031, 168.131) 1998 Spark Plug - step-by-step manuals and video guides
    Detach the connector from the ignition coil.
  3. Step 4
    Mercedes W168 A 170 CDI 1.7 (168.009, 168.109) 1999 Spark Plug replacement: free workshop manuals
    Unscrew the ignition coil bracket. Use a drive socket #E11. Use a ratchet wrench.
  4. Step 5
    Changing Spark Plug on MERCEDES-BENZ A-Class (W168) A 170 CDI 1.7 (168.008) 2000 by yourself
    Take out the ignition coil from the spark plug well.
  5. Step 6
    How to remove MERCEDES-BENZ A-CLASS A 190 1.9 (168.032, 168.132) 2001 Spark Plug - online easy-to-follow instructions
    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  6. Step 7
    How to replace Spark Plug on MERCEDES-BENZ A-Class (W168) 2002: download PDF manuals and video instructions
    Take out the spark plugs.
  7. Step 8
    How hard is it to do yourself: Spark Plug replacement on Mercedes W168 A 160 CDI 1.7 (168.006) 2003 - download illustrated guide
    Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
  8. Step 9
    Need to know how to renew Spark Plug on MERCEDES-BENZ A-CLASS 2004? This free workshop manual will help you to do it yourself
    Install the new spark plugs into their mounting seats.
  9. Step 10
    Changing of Spark Plug on Mercedes W168 1997 won't be an issue if you follow this illustrated step-by-step guide
    Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 25 nm torque.
    Replacement: spark plugs – Mercedes W168. 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.
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DIY MERCEDES-BENZ A-Class (W168) Spark Plug replacement - online guide
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