How to carry out replacement: Thermostat 3.0 TDI quattro Audi A6 C6 Allroad
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Change Audi A6 C6 Allroad 4.2 FSI quattro Thermostat yourself – manuals and video tutorials

How to change engine thermostat on AUDI A6 Allroad (4FH, C6) – replacement guide

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When to replace the Thermostat on your AUDI A6
Recommended replacement interval for the part category Engine thermostat : 50000 km
Important!
This replacement procedure can be used for:
AUDI A6 Allroad (4FH, C6) 4.2 FSI quattro … 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 A6 Allroad (4FH, C6) and other AUDI models
How to change Engine thermostat on Audi A6 C6 Allroad 3.0 TDI quattro – step-by-step instructions for straightforward car repair Engine thermostat
How to change Engine thermostat on A6 C6 Allroad (4FH) – tips for proper car maintenance
Engine thermostat for A6 C6 Allroad (4FH) Petrol (350 hp)
Tools
Replacement: engine thermostat – AUDI A6 Allroad (4FH, C6). 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: engine thermostat – AUDI A6 Allroad (4FH, C6). 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 – AUDI A6 Allroad (4FH, C6) – 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
    How to change Thermostat on Audi A6 C6 Allroad 2006 - free PDF and video manuals
    Unscrew the coolant reservoir cap.
  2. Step 4
    How to replace AUDI A6 Allroad (4FH, C6) 3.0 TDI quattro 2007 Thermostat - step-by-step manuals and video guides
    Prepare a container for fluids.
  3. Step 5
    Audi A6 C6 Allroad 2.7 TDI quattro 2008 Thermostat replacement: free workshop manuals
    Loosen the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
  4. Step 6
    Changing Thermostat on AUDI A6 Allroad (4FH, C6) 4.2 FSI quattro 2009 by yourself
    Detach the coolant hose.
  5. Step 7
    How to remove AUDI A6 3.0 TFSI quattro 2010 Thermostat - online easy-to-follow instructions
    Drain the coolant from the engine.
    Replacement: engine thermostat – AUDI A6 Allroad (4FH, C6). 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 AUDI A6 Allroad (4FH, C6) 2011: 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: Thermostat replacement on Audi A6 C6 Allroad 2.7 TDI quattro 2006 - download illustrated guide
    Remove the thermostat housing.
    AUTODOC recommends:
    Replacement: engine thermostat – AUDI A6 Allroad (4FH, C6). Do not use excessive force when removing the part as this may damage it.
  8. Step 10
    Need to know how to renew Thermostat on AUDI A6 2007? This free workshop manual will help you to do it yourself
    Remove the thermostat.
    AUTODOC recommends:
    Replacement: engine thermostat – AUDI A6 Allroad (4FH, C6). 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 Audi A6 C6 Allroad 2008 won't be an issue if you follow this illustrated step-by-step guide
    Install a new thermostat.
    Replacement: engine thermostat – AUDI A6 Allroad (4FH, C6). Tip:
    When installing, do not use excessive force to avoid damage to the part.
  10. Step 12
    AUDI A6 4.2 FSI quattro Thermostat replacement: online guides and video tutorials
    Install the thermostat housing.
  11. Step 13
    Replacing Thermostat on Audi A6 C6 Allroad 2010 3.0 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 Allroad (4FH, C6) 3.0 TFSI quattro 2011 Thermostat DIY replacement workshop manual
    Attach the coolant hose.
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