When to replace the Spark Plug on your MERCEDES-BENZ SPRINTER
Recommended replacement interval for the part category Spark plug : 45000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ SPRINTER 3-t Bus (903) 314 (903.071, 903.072, 903.073, 903.671, 903.672,..., MERCEDES-BENZ SPRINTER 3-t Bus (903) 314 4x4 (903.672, 903.673) 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 SPRINTER 3-t Bus (903). Tools you need:
High-temperature anti-seize lubricant
Drive socket # E11
Drive socket # 16
Ratchet wrench
Torque wrench
Fender cover
Replacement: spark plugs – MERCEDES-BENZ SPRINTER 3-t Bus (903). 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-BENZ SPRINTER 3-t Bus (903). Recommended sequence of 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
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    Detach the connector from the ignition coil.
  2. Step 4
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    Unscrew the ignition coil bracket. Use a drive socket #E11. Use a ratchet wrench.
  3. Step 5
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    Take out the ignition coil from the spark plug well.
  4. Step 6
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    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  5. Step 7
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    Take out the spark plugs.
  6. Step 8
    How to replace Spark Plug on MERCEDES-BENZ SPRINTER 3-t Bus (903) 2000: download PDF manuals and video instructions
    Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
  7. Step 9
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    Install the new spark plugs into their mounting seats.
  8. Step 10
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    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-BENZ SPRINTER 3-t Bus (903). 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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