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How to change spark plugs on Mercedes W203 – replacement guide
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Recommended replacement interval for the part category Spark plug : 18 month / 30000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ C-Class Saloon (W203) C 180 (203.035) … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ C-Class Saloon (W203) C 180 (203.035) … View more
The steps may slightly vary depending on the car design.
How to change spark plug on MERCEDES-BENZ С W203 [TUTORIAL AUTODOC]
All the parts you need to replace – Spark Plug for C-Class Saloon (W203) and other MERCEDES-BENZ models
Spark plug
Alternative products
Spark plug
Electronic spray
HEX bit No.HW5.
Drive socket # E8
Spark plug socket # 16
Ratchet wrench
Torque wrench
High-temperature anti-seize lubricant
Fender cover
Replacement: spark plugs – Mercedes W203. Professionals recommend:
- The replacement procedure is the same for all spark plugs.
- Warning! Shut down the engine before starting any work – Mercedes W203.
Carry out replacement in the following order:
- Step 1
Open the hood. - Step 2
Use a fender protection cover to prevent damaging paintwork and plastic parts of the car. - Step 3
Undo the engine cover screws (3 pieces). Use HEX No.HW5. - Step 4
Remove the engine cover. - Step 5
Unscrew the fasteners of the ignition coils. Use a drive socket #E8. - Step 6
Take out the ignition coils from the spark plug wells.Replacement: spark plugs – Mercedes W203. Tip from AUTODOC:Remember the sequence of steps for ignition coil demounting. - Step 7
Clean dirt, dust and debris from inside the spark plug wells. - Step 8
Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench. - Step 9
Take out the spark plugs. - Step 10
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 electronic spray. - Step 11
Install the new spark plugs into their mounting seats.
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