How to change engine thermostat on PEUGEOT 3008 I (0U_) – replacement guide
This guide provides step-by-step instructions for replacing the engine thermostat on a PEUGEOT 3008 I (0U_) with a 1.6 VTi engine. The procedure is based on a similar car part replacement for a PEUGEOT 207 Hatchback 1.6 16V VTi, and steps may vary slightly depending on the car's design.
Important Notes 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.
- Caution! Coolant can be very hot. Wear gloves to prevent contact with hot liquid.
- When installing, do not use excessive force to avoid damage to the part.
- Only use the coolant recommended by the manufacturer.
- The coolant level should be at the MAX mark.
- Wait until the air goes out of the system.
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 Procedure
- Open the bonnet.
- Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
- Disconnect the air intake pipe fastening. Use a drive socket #10. Use a ratchet wrench.
Image shows a hand using a drive socket and ratchet wrench on an air intake pipe fastening.
- Remove the air intake pipe.
Image shows a hand pulling the air intake pipe away from the engine.
- Remove the battery cover.
Image shows a hand lifting a plastic cover from the car battery area.
- Unscrew the fasteners of the car battery terminals. Use a combination spanner #8.
Image shows a hand using a combination spanner #8 to loosen a battery terminal fastener.
- Remove the battery terminals.
Image shows a hand pulling a battery terminal off the battery post.
- Press the battery retainers to release them.
Image shows a hand pressing down on a battery retainer clip.
- Remove the battery.
Image shows a hand lifting the car battery out of its tray.
- Remove the electronic control unit.
Image shows a hand disconnecting an electronic control unit from its mounting.
- Remove the engine wiring harness cover.
Image shows a hand pulling off a plastic cover from the engine wiring harness.
- Detach the engine wiring harness connectors. Use a flat screwdriver.
Image shows a hand using a flat screwdriver to disconnect an engine wiring harness connector.
- Unscrew the coolant reservoir cap.
Image shows a hand unscrewing the cap from the coolant reservoir.
- Secure the wheels with chocks.
Image shows wheel chocks placed under the car's wheels.
- Lift the car using a jack or place it over an inspection pit.
Image shows a car being lifted by a jack.
- Prepare a container for fluids.
Image shows a person placing a container under a car component to catch fluids.
- Detach the clamp of the lower coolant pipe. Use a combination spanner #7.
Image shows a hand using a combination spanner #7 to loosen a clamp on a coolant pipe.
- Detach the lower coolant pipe.
Image shows a hand pulling a coolant pipe away from its connection point.
- Drain the coolant from the engine.
Image shows coolant draining from the engine into a container.
- Clean the lower coolant pipe mounting seat. Use all-purpose cleaning spray.
Image shows a hand spraying a cleaning agent onto the mounting seat for the coolant pipe.
- Attach the lower coolant pipe.
Image shows a hand fitting the lower coolant pipe into its connection.
- Attach the clamp of the lower coolant pipe. Use a combination spanner #7.
Image shows a hand using a combination spanner #7 to secure a clamp on the lower coolant pipe.
- Clean the coolant hose. Use all-purpose cleaning spray.
Image shows a hand spraying a cleaning agent onto a coolant hose.
- Lower the car.
Image shows a car being lowered from a jack.
- Remove the jacks and chocks.
Image shows wheel chocks and a jack being removed from under the car.
- Loosen the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
Image shows a hand using a drive socket #7 and ratchet wrench to loosen a coolant hose clamp.
- Detach the coolant hose.
Image shows a hand pulling a coolant hose off its connection.
- Loosen the coolant hose clamp. Use clic-R collar pliers.
Image shows a hand using clic-R collar pliers to loosen a coolant hose clamp.
- Loosen the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
Image shows a hand using a drive socket #7 and ratchet wrench to loosen a coolant hose clamp.
- Detach the coolant hose.
Image shows a hand pulling a coolant hose off its connection.
- Loosen the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
Image shows a hand using a drive socket #7 and ratchet wrench to loosen a coolant hose clamp.
- Detach the coolant hose.
Image shows a hand pulling a coolant hose off its connection.
- Unscrew the thermostat housing fasteners. Use a drive socket #8. Use a drive socket #10. Use a ratchet wrench.
Image shows hands using drive sockets #8 and #10 with a ratchet wrench to unscrew thermostat housing fasteners.
- Unscrew the thermostat housing mounting stud. Use a drive socket #E5. Use a ratchet wrench.
Image shows a hand using a drive socket #E5 and ratchet wrench to unscrew a thermostat housing mounting stud.
- Detach the clip of the upper coolant hose. Use round-nose pliers.
Image shows a hand using round-nose pliers to detach a clip on the upper coolant hose.
- Remove the thermostat housing.
Image shows a hand removing the thermostat housing from the engine.
- Clean the thermostat housing mounting seat. Use a seal scraper. Use all-purpose cleaning spray.
Image shows a hand using a seal scraper and cleaning spray on the thermostat housing mounting seat.
- Install the new thermostat housing.
Image shows a hand fitting a new thermostat housing onto the engine.
- Attach the coolant hose.
Image shows a hand fitting a coolant hose onto the new thermostat housing.
- Attach the clip of the upper coolant hose.
Image shows a hand securing a clip on the upper coolant hose.
- 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.
Image shows a hand using drive sockets #8 and #10 with a torque wrench to tighten thermostat housing fasteners.
- Tighten the thermostat housing mounting stud. Use a drive socket #E5. Use a torque wrench. Tighten it to 11 nm torque.
Image shows a hand using a drive socket #E5 and torque wrench to tighten the thermostat housing mounting stud.
- Attach the coolant hose.
Image shows a hand fitting a coolant hose onto a connection.
- Secure the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
Image shows a hand using a drive socket #7 and ratchet wrench to secure a coolant hose clamp.
- Attach the coolant hose.
Image shows a hand fitting a coolant hose onto a connection.
- Secure the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
Image shows a hand using a drive socket #7 and ratchet wrench to secure a coolant hose clamp.
- Secure the coolant hose clamp. Use clic-R collar pliers.
Image shows a hand using clic-R collar pliers to secure a coolant hose clamp.
- Attach the coolant hose.
Image shows a hand fitting a coolant hose onto a connection.
- Secure the coolant hose clamp. Use a drive socket #7. Use a ratchet wrench.
Image shows a hand using a drive socket #7 and ratchet wrench to secure a coolant hose clamp.
- Treat the engine wiring harness connectors. Use electronic spray.
Image shows a hand spraying electronic spray onto engine wiring harness connectors.
- Attach the engine wiring harness connectors.
Image shows a hand connecting engine wiring harness connectors.
- Install the engine wiring harness cover. Make sure you hear a click indicating that it is locked in place.
Image shows a hand fitting an engine wiring harness cover into place.
- Install the electronic control unit.
Image shows a hand installing an electronic control unit onto its mounting.
- Install the battery. Make sure you hear a click indicating that it is locked in place.
Image shows a hand placing the car battery into its tray, ensuring it clicks into place.
- Attach the terminals to the battery.
Image shows a hand attaching battery terminals to the battery posts.
- Screw in the fasteners of the battery terminals. Use a combination spanner #8.
Image shows a hand using a combination spanner #8 to tighten battery terminal fasteners.
- Install the battery cover.
Image shows a hand placing the battery cover back onto the battery area.
- Remove the coolant reservoir cap.
Image shows a hand removing the cap from the coolant reservoir.
- Insert the funnel.
Image shows a funnel being inserted into the coolant reservoir opening.
- Pour coolant in the coolant reservoir.
Image shows coolant being poured from a container into the funnel in the coolant reservoir.
- Install the coolant reservoir cap.
Image shows a hand placing the cap back onto the coolant reservoir.
- Screw on the coolant reservoir cap.
Image shows a hand tightening the coolant reservoir cap.
- Install the air intake pipe and secure it.
Image shows a hand fitting the air intake pipe back into its position.
- Screw in the fastener of the air intake pipe. Use a drive socket #10. Use a ratchet wrench.
Image shows a hand using a drive socket #10 and ratchet wrench to tighten the air intake pipe fastener.
- Run the engine for a few minutes. This should be done in order to remove residual air from the cooling system and to check if the components are operating correctly.
- Shut off the engine.
- Undo the bleed screw. Use a flat screwdriver. Wait until the air goes out of the system.
Image shows a hand using a flat screwdriver to loosen a bleed screw on the cooling system.
- Tighten the bleed screw.
Image shows a hand tightening a bleed screw on the cooling system.
- Check the coolant level. If necessary, top up to the required level.
Image shows a dipstick or level indicator being checked in the coolant reservoir.
- Remove the fender protection cover.
Image shows a hand removing a fender protection cover.
- Close the hood.
Image shows a car hood being closed.
WELL DONE! [Thumbs Up]
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The document contains only general recommendations that may be useful for you when you perform repair or replacement work. AUTODOC shall not be liable for any loss, injury, damage of property occurring in the repair or replacement process due to incorrect use or misinterpretation of the provided information.
AUTODOC shall not be liable for any possible mistakes and uncertainties in this guide. The information provided is for information purposes only and cannot replace advice from specialists.
AUTODOC shall not be liable for incorrect or hazardous usage of equipment, tools and car parts. AUTODOC strongly recommends to be careful and observe the safety rules when performing repair or replacement works. Remember: usage of low quality auto parts does not guarantee you the appropriate level of road safety.
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