How to carry out replacement: Coolant Flange 2.5 TDI quattro Audi A6 C4 Avant
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Change Audi A6 C4 Avant 2.5 TDI quattro Coolant Flange yourself – manuals and video tutorials

How to change coolant flange on AUDI A6 Avant (4A5, C4) – replacement guide

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Important!
This replacement procedure can be used for:
AUDI A6 Avant (4A5, C4) 2.0, AUDI A6 Avant (4A5, C4) 2.0 … 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 A6 Avant (4A5, C4) and other AUDI models
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Coolant Flange for A6 C4 Avant (4A5) Petrol (100 hp)
Simple DIY car repair steps – Replacing Coolant Flange on A6 C4 Avant (4A5)
Coolant Flange for A6 C4 Avant (4A5) Petrol (115 hp)
Tools
Replacement: сoolant flange – AUDI A6 Avant (4A, C4). 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 – AUDI A6 Avant (4A, C4). 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 – AUDI A6 Avant (4A, C4). 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 Audi A6 C4 Avant 1994 - free PDF and video manuals
    Unscrew the coolant reservoir cap.
  2. Step 4
    How to replace AUDI A6 Avant (4A5, C4) 2.5 TDI quattro 1995 Coolant Flange - step-by-step manuals and video guides
    Prepare a container for fluids.
  3. Step 5
    Audi A6 C4 Avant 2.5 TDI 1996 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 AUDI A6 Avant (4A5, C4) 2.6 1997 by yourself
    Detach the coolant hose.
    Replacement: сoolant flange – AUDI A6 Avant (4A, C4). Professionals recommend:
    Caution! Coolant may come out from the water pump channels and body.
  5. Step 7
    How to remove AUDI A6 2.6 quattro 1994 Coolant Flange - online easy-to-follow instructions
    Drain the coolant from the engine.
    Replacement: сoolant flange – AUDI A6 Avant (4A, C4). 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 AUDI A6 Avant (4A5, C4) 1995: 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 Audi A6 C4 Avant 2.8 quattro 1996 - download illustrated guide
    Remove the thermostat housing.
    AUTODOC recommends:
    Replacement: сoolant flange – AUDI A6 Avant (4A, C4). 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 AUDI A6 1997? This free workshop manual will help you to do it yourself
    Remove the thermostat.
    Replacement: сoolant flange – AUDI A6 Avant (4A, C4). 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 Audi A6 C4 Avant 1994 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. AUDI A6 Avant (4A, C4)
  10. Step 12
    AUDI A6 2.5 TDI quattro Coolant Flange replacement: online guides and video tutorials
    Install a new thermostat housing.
  11. Step 13
    Replacing Coolant Flange on Audi A6 C4 Avant 1996 2.5 TDI quattro 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
    A6 Avant (4A5, C4) 2.6 quattro 1997 Coolant Flange DIY replacement workshop manual
    Attach the coolant hose.
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