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How to change fuel filter on MERCEDES-BENZ C-Class T-modell (S203) – replacement guide
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Recommended replacement interval for the part category Fuel filter : 4 year / 80000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ C-Class T-modell (S203) C 220 CDI (203.208), MERCEDES-BENZ C-Class T-modell (S203) C 200 CDI (203.204), MERCEDES-BENZ C-Class T-modell (S203) C 220 CDI (203.206, 203.208), MERCEDES-BENZ C-Class T-modell (S203) C 200 CDI (203.207), MERCEDES-BENZ C-Class T-modell (S203) C 220 CDI (203.208), MERCEDES-BENZ C-Class T-modell (S203) C 320 CDI (203.220), MERCEDES-BENZ C-Class T-modell (S203) C 200 CDI (203.204) … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ C-Class T-modell (S203) C 220 CDI (203.208), MERCEDES-BENZ C-Class T-modell (S203) C 200 CDI (203.204), MERCEDES-BENZ C-Class T-modell (S203) C 220 CDI (203.206, 203.208), MERCEDES-BENZ C-Class T-modell (S203) C 200 CDI (203.207), MERCEDES-BENZ C-Class T-modell (S203) C 220 CDI (203.208), MERCEDES-BENZ C-Class T-modell (S203) C 320 CDI (203.220), MERCEDES-BENZ C-Class T-modell (S203) C 200 CDI (203.204) … 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 – Fuel Filter for C-Class T-modell (S203) and other MERCEDES-BENZ models
Fuel filter
Alternative products

All-purpose cleaning spray
Torx bit T25
Drive socket # 5.5
Drive socket # 7
Drive socket # 10
HEX bit No.H5
Ratchet wrench
Round-nose pliers
Bulb hand fuel pump
Fender cover
Replacement: fuel filter – MERCEDES-BENZ C-CLASS T-Model (S203). AUTODOC experts recommend:
- Ensure adequate ventilation of the workplace. Fuel vapors are poisonous.
- Please note: all work on the car – MERCEDES-BENZ C-CLASS T-Model (S203) – should be done with the engine switched off.
Carry out replacement in the following order:
- Step 1Open the hood.Step 2Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.Step 3Unscrew the engine cover fastener. Use Torx T25. Use a ratchet wrench.Step 4Unscrew the fasteners of the back section of the engine cover. Use a drive socket #10. Use a ratchet wrench.
- Step 5Remove the back section of the engine cover.AUTODOC recommends:Replacement: fuel filter – MERCEDES-BENZ C-CLASS T-Model (S203). Do not use excessive force when removing the part as this may damage it.
- Step 6Remove the engine cover.AUTODOC recommends:Replacement: fuel filter – MERCEDES-BENZ C-CLASS T-Model (S203). To avoid damaging the part when removing it, do not use excessive force.Step 7Clean the fuel filter housing and the cover. Use all-purpose cleaning spray.
- Step 8Loosen the fuel filter mounting. Use HEX No.H5. Use a ratchet wrench.
- Step 9Loosen the fastening clamps of the fuel filter pipes. Use a drive socket #5.5. Use a drive socket #7. Use a ratchet wrench.
- Step 10Detach the tubes from the fuel filter. Use round-nose pliers.Replacement: fuel filter – MERCEDES-BENZ C-CLASS T-Model (S203). Tip:Be careful! Fuel may leak from the filter housing and hoses.
- Step 11Remove the fuel filter.
- Step 12Install a new fuel filter.Replacement: fuel filter – MERCEDES-BENZ C-CLASS T-Model (S203). Tip from AUTODOC:Make sure that the fuel filter is positioned correctly. Consider the fuel flow direction mark.During installation, take care to prevent dust and dirt from getting into the fuel filter housing.MERCEDES-BENZ C-CLASS T-Model (S203) – It's important to only use high-quality filters.
- Step 13Clean the fuel filter housing and the cover. Use all-purpose cleaning spray.
- Step 14Attach the pipe to the fuel filter.
- Step 15Tighten the fastening clamp of the fuel filter pipe. Use a drive socket #5.5. Use a ratchet wrench.
- Step 16Press the fuel primer pump several times until it gets hard. Use a bulb hand fuel pump.
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