When to replace the Thermostat on your PEUGEOT 308
Recommended replacement interval for the part category Thermostat : 50000 km
Important!
This replacement procedure can be used for:
PEUGEOT 308 I Hatchback (4A_, 4C_) 1.4 16V, PEUGEOT 308 I Hatchback (4A_, 4C_) 1.6 16V, PEUGEOT 308 I Hatchback (4A_, 4C_) 1.4 16V, PEUGEOT 308 I Hatchback (4A_, 4C_) 1.6 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 – PEUGEOT 308 (4A_, 4C_). Tools you'll need:
Electronic spray
All-purpose cleaning spray
Torque wrench
Combination spanner #7
Combination spanner #8
Drive socket # E5
Drive socket # 7
Drive socket # 8
Drive socket # 10
Ratchet wrench
Seal scraper
Round-nose pliers
Clic-R collar pliers
Flat Screwdriver
Funnel
Fluid container
Fender cover
Wheel chock
Replacement: engine thermostat – PEUGEOT 308 (4A_, 4C_). Tip from AUTODOC:
  • Check the condition of the coolant every time you replace the thermostat. Change the coolant if necessary.
  • All work should be done with the engine stopped.
Replacement: engine thermostat – PEUGEOT 308 (4A_, 4C_). Take the following steps:
  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
    How to change Thermostat on Peugeot 308 Mk1 2007 - free PDF and video manuals
    Disconnect the air intake pipe fastening. Use a drive socket #10. Use a ratchet wrench.
  2. Step 4
    How to replace PEUGEOT 308 I Hatchback (4A_, 4C_) 1.6 HDi 2008 Thermostat - step-by-step manuals and video guides
    Remove the air intake pipe.
  3. Step 5
    Peugeot 308 Mk1 1.6 16V 2009 Thermostat replacement: free workshop manuals
    Remove the battery cover.
  4. Step 6
    Changing Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 1.4 16V 2010 by yourself
    Unscrew the fasteners of the car battery terminals. Use a combination spanner #8.
  5. Step 7
    How to remove PEUGEOT 308 1.6 HDi 2011 Thermostat - online easy-to-follow instructions
    Remove the battery terminals.
  6. Step 8
    How to replace Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 2012: download PDF manuals and video instructions
    Press the battery retainers to release them.
  7. Step 9
    How hard is it to do yourself: Thermostat replacement on Peugeot 308 Mk1 2.0 HDi 2013 - download illustrated guide
    Remove the battery.
  8. Step 10
    Need to know how to renew Thermostat on PEUGEOT 308 2014? This free workshop manual will help you to do it yourself
    Remove the electronic control unit.
  9. Step 11
    Changing of Thermostat on Peugeot 308 Mk1 2015 won't be an issue if you follow this illustrated step-by-step guide
    Remove the engine wiring harness cover.
  10. Step 12
    PEUGEOT 308 1.6 HDi Thermostat replacement: online guides and video tutorials
    Detach the engine wiring harness connectors. Use a flat screwdriver.
  11. Step 13
    Replacing Thermostat on Peugeot 308 Mk1 2007 1.6 HDi by yourself
    Unscrew the coolant reservoir cap.
  12. Step 14
    Secure the wheels with chocks.
    Step 15
    Lift the car using a jack or place it over an inspection pit.
    Step 16
    308 I Hatchback (4A_, 4C_) 1.6 HDi 2008 Thermostat DIY replacement workshop manual
    Prepare a container for fluids.
  13. Step 17
    How to change Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 2009 - tips and tricks
    Detach the clamp of the lower coolant pipe. Use a combination spanner #7.
  14. Step 18
    Step-by-step recommendations for DIY replacement Peugeot 308 Mk1 2010 1.6 HDi Thermostat
    Detach the lower coolant pipe.
  15. Step 19
    DIY replacement of Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 2.0 HDi 2011 is not an issue anymore with our step-by-step tutorial
    Drain the coolant from the engine.
    AUTODOC recommends:
    Caution! The coolant can be very hot.Wear gloves to prevent contact with hot liquid.All work should be done with the engine stopped.
  16. Step 20
    How to change Thermostat on Peugeot 308 Mk1 2007 - free PDF and video manuals
    Clean the lower coolant pipe mounting seat. Use all-purpose cleaning spray.
  17. Step 21
    How to replace PEUGEOT 308 I Hatchback (4A_, 4C_) 1.6 HDi 2008 Thermostat - step-by-step manuals and video guides
    Attach the lower coolant pipe.
  18. Step 22
    Peugeot 308 Mk1 1.6 16V 2009 Thermostat replacement: free workshop manuals
    Attach the clamp of the lower coolant pipe. Use a combination spanner #7.
  19. Step 23
    Changing Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 1.4 16V 2010 by yourself
    Clean the coolant hose. Use all-purpose cleaning spray.
  20. Step 24
    Lower the car.
    Step 25
    Remove the jacks and chocks.
    Step 26
    How to remove PEUGEOT 308 1.6 HDi 2011 Thermostat - online easy-to-follow instructions
    Loosen the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
  21. Step 27
    How to replace Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 2012: download PDF manuals and video instructions
    Detach the coolant hose.
    Replacement: engine thermostat – PEUGEOT 308 (4A_, 4C_). AUTODOC recommends:
    Caution! Coolant may leak out of the coolant lines and thermostat housing.
  22. Step 28
    How hard is it to do yourself: Thermostat replacement on Peugeot 308 Mk1 2.0 HDi 2013 - download illustrated guide
    Loosen the coolant hose clamp. Use clic-R collar pliers.
    Replacement: engine thermostat – PEUGEOT 308 (4A_, 4C_). Tip:
    Caution! Coolant may leak out of the coolant lines and thermostat housing.
  23. Step 29
    Need to know how to renew Thermostat on PEUGEOT 308 2014? This free workshop manual will help you to do it yourself
    Loosen the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
  24. Step 30
    Changing of Thermostat on Peugeot 308 Mk1 2015 won't be an issue if you follow this illustrated step-by-step guide
    Detach the coolant hose.
    AUTODOC recommends:
    Caution! Coolant may leak out of the coolant lines and thermostat housing.
  25. Step 31
    PEUGEOT 308 1.6 HDi Thermostat replacement: online guides and video tutorials
    Loosen the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
  26. Step 32
    Replacing Thermostat on Peugeot 308 Mk1 2007 1.6 HDi by yourself
    Detach the coolant hose.
    Replacement: engine thermostat – PEUGEOT 308 (4A_, 4C_). Professionals recommend:
    Caution! Coolant may leak out of the coolant lines and thermostat housing.
  27. Step 33
    308 I Hatchback (4A_, 4C_) 1.6 HDi 2008 Thermostat DIY replacement workshop manual
    Unscrew the thermostat housing fasteners. Use a drive socket #8. Use a drive socket #10. Use a ratchet wrench.
  28. Step 34
    How to change Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 2009 - tips and tricks
    Unscrew the thermostat housing mounting stud. Use a drive socket #E5. Use a ratchet wrench.
  29. Step 35
    Step-by-step recommendations for DIY replacement Peugeot 308 Mk1 2010 1.6 HDi Thermostat
    Detach the clip of the upper coolant hose. Use round-nose pliers.
  30. Step 36
    DIY replacement of Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 2.0 HDi 2011 is not an issue anymore with our step-by-step tutorial
    Remove the thermostat housing.
  31. Step 37
    How to change Thermostat on Peugeot 308 Mk1 2007 - free PDF and video manuals
    Clean the thermostat housing mounting seat. Use a seal scraper. Use all-purpose cleaning spray.
  32. Step 38
    How to replace PEUGEOT 308 I Hatchback (4A_, 4C_) 1.6 HDi 2008 Thermostat - step-by-step manuals and video guides
    Install the new thermostat housing.
  33. Step 39
    Peugeot 308 Mk1 1.6 16V 2009 Thermostat replacement: free workshop manuals
    Attach the coolant hose.
  34. Step 40
    Changing Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 1.4 16V 2010 by yourself
    Attach the clip of the upper coolant hose.
  35. Step 41
    How to remove PEUGEOT 308 1.6 HDi 2011 Thermostat - online easy-to-follow instructions
    Tighten the thermostat housing fasteners. Use a drive socket #8. Use a drive socket #10. Use a torque wrench. Tighten it to 13 nm torque.
  36. Step 42
    How to replace Thermostat on PEUGEOT 308 I Hatchback (4A_, 4C_) 2012: download PDF manuals and video instructions
    Tighten the thermostat housing mounting stud. Use a drive socket #E5. Use a torque wrench. Tighten it to 11 nm torque.
Was this manual helpful?
Please rate this manual on a scale from 1 to 5. If you have any questions, feel free to ask us.
Users voted – 1
Searching for the right tyres?

Find out which tyre and wheel sizes are compatible with the PEUGEOT 308 I Hatchback (4A, 4C) model.

Your profile is your personal assistant.

It can track car expenses, keep a car log and replacement schedule, and save favourite materials, notes and documents

Install the AUTODOC CLUB app!
Your personal car expenses manager, maintenance tips, reminders about upcoming appointments and service intervals, DIY repair instructions – all this on your phone.
PEUGEOT 308 I Hatchback (4A_, 4C_) Thermostat replace by yourself - Scan QR-code and download AUTODOC CLUB app
Scan

To download the app:

  • - scan the QR code
  • - download from App Store
  • - download from Google Play
Autodoc CLUB App icon
DIY PEUGEOT 308 I Hatchback (4A_, 4C_) Thermostat replacement - online guide
Tips & tricks for your PEUGEOT 308 I Hatchback (4A_, 4C_)
View more
  • How to change Thermostat housing on PEUGEOT 308 I Hatchback (4A_, 4C_) 2.0 HDi - replacement tricks
    What to do if your car’s bonnet won’t open | AUTODOC tips
  • Changing Thermostat valve Peugeot 308 Mk1 1.6 HDi - Replacement Tips
    What to do if the belt squeals | AUTODOC tips
  • Maintenance Hacks - PEUGEOT 308 I Hatchback (4A_, 4C_) 1.6 16V Coolant thermostat replacement guide
    Deep interior cleaning | Car transformation by detailing
  • Replace Engine coolant thermostat on Peugeot 308 Mk1 - free video tips
    5 causes of turbocharger failure and how to avoid them | AUTODOC tips