How to carry out replacement: Thermostat 300 CE-24 3.0 (124.061) Mercedes A124 Convertible
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Change Mercedes A124 Convertible 300 CE-24 3.0 (124.061) Thermostat yourself – manuals and video tutorials

How to change engine thermostat on MERCEDES-BENZ W124 Convertible (A124) – replacement guide

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When to replace the Thermostat on your MERCEDES-BENZ 123 SERIES
Recommended replacement interval for the part category Thermostat : 50000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ W124 Convertible (A124) 300 CE-24 (124.061) … 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 – Thermostat for W124 Convertible (A124) and other MERCEDES-BENZ models
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How to change Thermostat on Mercedes A124 Convertible 300 CE-24 3.0 (124.061) – step-by-step instructions for straightforward car repair Thermostat
Tools
Replacement: engine thermostat – MERCEDES-BENZ CABRIOLET (A124). Tools you might need:
Wire brush
All-purpose cleaning spray
Torque wrench
Combination spanner #10
Drive socket # 7
Drive socket # 8
Drive socket # 10
Ratchet wrench
Long nose pliers
Funnel
Fluid container
Fender cover
Buy tools
Replacement: engine thermostat – MERCEDES-BENZ CABRIOLET (A124). AUTODOC recommends:
  • Check the condition of the coolant every time you replace the thermostat. Change the coolant if necessary.
  • Please note: all work on the car – MERCEDES-BENZ CABRIOLET (A124) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Open the bonnet.
    Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
    Unscrew the coolant reservoir cap.
    Step 4
    Lift the car using a jack or place it over an inspection pit.
    Step 5
    Prepare a container for fluids.
    Step 6
    How to change Thermostat on Mercedes A124 Convertible 1991 - free PDF and video manuals
    Open the coolant drain tap.
  2. Step 7
    How to replace MERCEDES-BENZ W124 Convertible (A124) 300 CE-24 3.0 (124.061) 1992 Thermostat - step-by-step manuals and video guides
    Drain the coolant from the engine.
    Replacement: engine thermostat – MERCEDES-BENZ CABRIOLET (A124). AUTODOC experts recommend:
    All work should be done with the engine stopped.Wait until the coolant has completely flowed out of the drain hole.
  3. Step 8
    Close the coolant drain tap.
    Step 9
    Mercedes A124 Convertible 320 CE (124.066) 1993 Thermostat replacement: free workshop manuals
    Loosen the clamp of the expansion tank hose. Use a drive socket #7. Use a ratchet wrench.
  4. Step 10
    Changing Thermostat on MERCEDES-BENZ W124 Convertible (A124) 320 CE (124.066) 1991 by yourself
    Detach the expansion tank hose from the thermostat housing.
  5. Step 11
    How to remove MERCEDES-BENZ 123 SERIES 300 CE-24 3.0 (124.061) 1992 Thermostat - online easy-to-follow instructions
    Detach the coolant hose.
  6. Step 12
    How to replace Thermostat on MERCEDES-BENZ W124 Convertible (A124) 1993: download PDF manuals and video instructions
    Unscrew the thermostat housing fasteners. Use a drive socket #10. Use a ratchet wrench.
  7. Step 13
    How hard is it to do yourself: Thermostat replacement on Mercedes A124 Convertible 300 CE-24 3.0 (124.061) 1991 - download illustrated guide
    Remove the fastening bolts.
  8. Step 14
    Need to know how to renew Thermostat on MERCEDES-BENZ 123 SERIES 1992? This free workshop manual will help you to do it yourself
    Remove the thermostat together with the housing.
    Replacement: engine thermostat – MERCEDES-BENZ CABRIOLET (A124). Professionals recommend:
    Caution! Coolant may leak out of the coolant lines and thermostat housing.
  9. Step 15
    Changing of Thermostat on Mercedes A124 Convertible 1993 won't be an issue if you follow this illustrated step-by-step guide
    Clean the thermostat housing mounting seat. Use all-purpose cleaning spray.
  10. Step 16
    Clean the thermostat mounting seat. Use a wire brush. Use all-purpose cleaning spray.
    Step 17
    MERCEDES-BENZ 123 SERIES 300 CE-24 3.0 (124.061) Thermostat replacement: online guides and video tutorials
    Install a new thermostat.
  11. Step 18
    Replacing Thermostat on Mercedes A124 Convertible 1992 300 CE-24 3.0 (124.061) by yourself
    Install the thermostat housing.
    Replacement: engine thermostat – MERCEDES-BENZ CABRIOLET (A124). Tip from AUTODOC experts:
    Be sure to use a new O-ring when installing the sensor.
  12. Step 19
    W124 Convertible (A124) 300 CE-24 3.0 (124.061) 1993 Thermostat DIY replacement workshop manual
    Install the fastening bolts.
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