How to carry out replacement: Coolant Flange 1.9 TDI Seat Leon 1m1
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Change Seat Leon 1m1 1.6 16 V Coolant Flange yourself – manuals and video tutorials

How to change coolant flange on SEAT Leon Hatchback (1M1) – replacement guide

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Download your free tutorial and fix SEAT Leon Hatchback (1M1) 1.9 TDI problems yourself Download for free 1.18 MB Coolant Flange for Seat Leon 1m1 Shop now
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Important!
This replacement procedure can be used for:
SEAT Leon Hatchback (1M1) 1.9 TDI, SEAT Leon Hatchback (1M1) 1.9 TDI Syncro … 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 – Coolant Flange for Leon Hatchback (1M1) and other SEAT models
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Coolant Flange for Leon I Hatchback (1M1) Diesel (150 hp)
Simple DIY car repair steps – Replacing Coolant Flange on Leon I Hatchback (1M1)
Coolant Flange for Leon I Hatchback (1M1) Diesel (150 hp)
Tools
Replacement: сoolant flange – SEAT LEON (1M1). Tools you might need:
Torque wrench
Drive socket # 7
Drive socket # 10
Drive socket # 13
Ratchet wrench
Fluid container
Funnel
Fender cover
Buy tools
Replacement: сoolant flange – SEAT LEON (1M1). Tip from AUTODOC:
  • Follow the terms, recommendations and requirements of the part operation provided by the manufacturer.
  • Check the coolant condition and replace it if necessary.
  • Inspect the thermostat. Replace it if necessary.
  • All work should be done with the engine stopped.
Replacement: сoolant flange – SEAT LEON (1M1). Use the following procedure:
  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 Coolant Flange on Seat Leon 1m1 1999 - free PDF and video manuals
    Unscrew the coolant reservoir cap.
  2. Step 4
    How to replace SEAT Leon Hatchback (1M1) 1.9 TDI 2000 Coolant Flange - step-by-step manuals and video guides
    Prepare a container for fluids.
  3. Step 5
    Seat Leon 1m1 1.6 16 V 2001 Coolant Flange replacement: free workshop manuals
    Loosen the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
  4. Step 6
    Changing Coolant Flange on SEAT Leon Hatchback (1M1) 1.9 TDI Syncro 2002 by yourself
    Detach the coolant hose.
    Replacement: сoolant flange – SEAT LEON (1M1). Professionals recommend:
    Caution! Coolant may come out from the water pump channels and body.
  5. Step 7
    How to remove SEAT LEON 1.8 T Cupra R 2003 Coolant Flange - online easy-to-follow instructions
    Drain the coolant from the engine.
    Replacement: сoolant flange – SEAT LEON (1M1). Tip from AUTODOC:
    Caution! The coolant can be very hot.Wear gloves to prevent contact with hot liquid.All work should be done with the engine stopped.Wait until the coolant has completely flowed out of the drain hole.
  6. Step 8
    How to replace Coolant Flange on SEAT Leon Hatchback (1M1) 2004: download PDF manuals and video instructions
    Unscrew the thermostat housing fasteners. Use a drive socket #13. Use a ratchet wrench.
  7. Step 9
    How hard is it to do yourself: Coolant Flange replacement on Seat Leon 1m1 1.4 16V 2005 - download illustrated guide
    Remove the thermostat housing.
    AUTODOC recommends:
    Replacement: сoolant flange – SEAT LEON (1M1). Do not use excessive force when removing the part as this may damage it.
  8. Step 10
    Need to know how to renew Coolant Flange on SEAT LEON 2006? This free workshop manual will help you to do it yourself
    Remove the thermostat.
    Replacement: сoolant flange – SEAT LEON (1M1). AUTODOC experts recommend:
    Do not apply excessive force when removing the part. Otherwise you may damage it.Caution! Coolant may leak out of the coolant lines and thermostat housing.
  9. Step 11
    Changing of Coolant Flange on Seat Leon 1m1 1999 won't be an issue if you follow this illustrated step-by-step guide
    Install the thermostat.
    AUTODOC recommends:
    Caution! Do not use excessive force during installation. This may damage the fasteners of the car. SEAT LEON (1M1)
  10. Step 12
    SEAT LEON 1.6 16 V Coolant Flange replacement: online guides and video tutorials
    Install a new thermostat housing.
  11. Step 13
    Replacing Coolant Flange on Seat Leon 1m1 2001 1.9 TDI by yourself
    Tighten the thermostat housing fasteners. Use a drive socket #10. Use a torque wrench. Tighten it to 13 nm torque.
  12. Step 14
    Leon Hatchback (1M1) 1.8 T Cupra R 2002 Coolant Flange DIY replacement workshop manual
    Attach the coolant hose.
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