When to replace the Thermostat on your VW TRANSPORTER
Recommended replacement interval for the part category Engine thermostat : 50000 km
Important!
This replacement procedure can be used for:
VW Transporter IV Van (70A, 70H, 7DA, 7DH) 2.0, VW Transporter IV Van (70A, 70H, 7DA, 7DH) 1.9 D, VW Transporter IV Van (70A, 70H, 7DA, 7DH) 1.9 TD, VW Transporter IV Van (70A, 70H, 7DA, 7DH) 1.9 D 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: engine thermostat – VW TRANSPORTER IV Box (70XA). Tools you might need:
Torque wrench
Drive socket # 7
Drive socket # 10
Drive socket # 13
Ratchet wrench
Fluid container
Funnel
Fender cover
Replacement: engine thermostat – VW TRANSPORTER IV Box (70XA). Tip from AUTODOC:
  • Check the condition of the coolant every time you replace the thermostat. Change the coolant if necessary.
  • Please note: all work on the car – VW TRANSPORTER IV Box (70XA) – should be done with the engine switched off.
Carry out replacement in the following order:
  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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    Unscrew the coolant reservoir cap.
  2. Step 4
    How to replace VW Transporter IV Van (70A, 70H, 7DA, 7DH) 2.5 TDI 1991 Thermostat - step-by-step manuals and video guides
    Prepare a container for fluids.
  3. Step 5
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    Loosen the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
  4. Step 6
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    Detach the coolant hose.
  5. Step 7
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    Drain the coolant from the engine.
    Replacement: engine thermostat – VW TRANSPORTER IV Box (70XA). Tip:
    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 Thermostat on VW Transporter IV Van (70A, 70H, 7DA, 7DH) 1995: download PDF manuals and video instructions
    Unscrew the thermostat housing fasteners. Use a drive socket #13. Use a ratchet wrench.
  7. Step 9
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    Remove the thermostat housing.
    AUTODOC recommends:
    Replacement: engine thermostat – VW TRANSPORTER IV Box (70XA). Do not use excessive force when removing the part as this may damage it.
  8. Step 10
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    Remove the thermostat.
    AUTODOC recommends:
    Replacement: engine thermostat – VW TRANSPORTER IV Box (70XA). Do not use excessive force when removing the part as this may damage it.Caution! Coolant may leak out of the coolant lines and thermostat housing.
  9. Step 11
    Changing of Thermostat on VW T4 1998 won't be an issue if you follow this illustrated step-by-step guide
    Install a new thermostat.
    Replacement: engine thermostat – VW TRANSPORTER IV Box (70XA). Tip:
    When installing, do not use excessive force to avoid damage to the part.
  10. Step 12
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    Install the thermostat housing.
  11. Step 13
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    Tighten the thermostat housing fasteners. Use a drive socket #10. Use a torque wrench. Tighten it to 13 nm torque.
  12. Step 14
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    Attach the coolant hose.
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DIY VW Transporter IV Van (70A, 70H, 7DA, 7DH) Thermostat replacement - online guide
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