How to carry out replacement: Spark Plug 250 D 2.5 (124.185) Mercedes S124 (W124)
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Change Mercedes S124 (W124) 250 D 2.5 (124.185) Spark Plug yourself – manuals and video tutorials

How to change spark plugs on MERCEDES-BENZ W124 Estate (S124) – replacement guide

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Download your free tutorial and fix MERCEDES-BENZ W124 Estate (S124) 200 TE 2.0 (124.081) problems yourself Download for free 890.88 KB Spark Plug for Mercedes S124 (W124) Shop now
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When to replace the Spark Plug on your MERCEDES-BENZ 123 SERIES
Recommended replacement interval for the part category Spark plug : 2 year / 20000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ W124 Estate (S124) 200 TE (124.079), MERCEDES-BENZ W124 Estate (S124) 220 TE (124.082) … 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 W124 Estate (S124) and other MERCEDES-BENZ models
Alternative products
How to change Spark plug on Mercedes S124 (W124) 250 D 2.5 (124.185) – step-by-step instructions for straightforward car repair Spark plug
Tools
Replacement: spark plugs – MERCEDES-BENZ KOMBI Estate (S124). 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 KOMBI Estate (S124). 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 KOMBI Estate (S124). 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 S124 (W124) 1985 - free PDF and video manuals
    Detach the connector from the ignition coil.
  2. Step 4
    How to replace MERCEDES-BENZ W124 Estate (S124) 250 D 2.5 (124.185) 1986 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 S124 (W124) 300 3.0 Turbo Diesel (124.193) 1987 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 W124 Estate (S124) 300 D 3.0 (124.190) 1988 by yourself
    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  5. Step 7
    How to remove MERCEDES-BENZ 123 SERIES 230 TE 2.3 (124.083) 1989 Spark Plug - online easy-to-follow instructions
    Take out the spark plugs.
  6. Step 8
    How to replace Spark Plug on MERCEDES-BENZ W124 Estate (S124) 1990: 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 S124 (W124) 230 TE Cat (124.083) 1991 - 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 123 SERIES 1992? 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 KOMBI Estate (S124). 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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