How to carry out replacement: Spark Plug 312 D 2.9 (903.471, 903.472, 903.473) Mercedes Sprinter 3t
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Change Mercedes Sprinter 3t 316 CDI 4x4 (903.672, 903.673) Spark Plug yourself – manuals and video tutorials

How to change spark plugs on MERCEDES-BENZ SPRINTER 3-t Bus (903) – replacement guide

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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 4x4 (903.672, 903.673), MERCEDES-BENZ SPRINTER 3-t Bus (903) 314 (903.071, 903.072, 903.073, 903.671, 903.672,... … 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 – Spark Plug for SPRINTER 3-t Bus (903) and other MERCEDES-BENZ models
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How to change Spark plug on Mercedes Sprinter 3t 312 D 2.9 (903.471, 903.472, 903.473) – step-by-step instructions for straightforward car repair Spark plug
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
Buy tools
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
    How to change Spark Plug on Mercedes Sprinter 3t 1995 - free PDF and video manuals
    Detach the connector from the ignition coil.
  2. Step 4
    How to replace MERCEDES-BENZ SPRINTER 3-t Bus (903) 312 D 2.9 (903.471, 903.472, 903.473) 1996 Spark Plug - step-by-step manuals and video guides
    Unscrew the ignition coil bracket. Use a drive socket #E11. Use a ratchet wrench.
  3. Step 5
    Mercedes Sprinter 3t 316 CDI (903.671, 903.672, 903.673) 1997 Spark Plug replacement: free workshop manuals
    Take out the ignition coil from the spark plug well.
  4. Step 6
    Changing Spark Plug on MERCEDES-BENZ SPRINTER 3-t Bus (903) 311 CDI (903.671, 903.672) 1998 by yourself
    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  5. Step 7
    How to remove MERCEDES-BENZ SPRINTER 308 CDI (903.671, 903.672, 903.673) 1999 Spark Plug - online easy-to-follow instructions
    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
    How hard is it to do yourself: Spark Plug replacement on Mercedes Sprinter 3t 313 CDI 4x4 (903.672, 903.673) 2001 - download illustrated guide
    Install the new spark plugs into their mounting seats.
  8. Step 10
    Need to know how to renew Spark Plug on MERCEDES-BENZ SPRINTER 2002? This free workshop manual will help you to do it yourself
    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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