Changing the accessory belt on a Peugeot 207

Raise the right front of the vehicle and remove the right front wheel.

Unclip the plastic fasteners and the torx screw holding the mudguard usinga flat screwdriver for the clips.

Unscrew the plastic protection of the carter in order to remove the mudguard.

Remove the mudguard, you can then see the belt.

Loosen the belt: use a 21/23 angled key to gently lift the tensioner by rotating it from left to right.

Hold the tensioner in position by sliding a screw

Disengage the friction wheel by pulling on the tab and wedge it in the notch provided to release the belt.

Remove the old one and put the new belt following the same route: it must pass around the three pulleys marked by an arrow (be careful not to turn the damper pulley, the largest, on the left).

Before replacing the belt, check the bearings (tensioner, friction wheel, alternator) when rotating them, there should be no suspicious noise and no hard spots.

Also check the water pump for leaks (by running your finger through it or unscrewing the water pump pulley).

Remove the friction wheel tab from the notch and push it back into its housing.

Release the tensioner retaining screw by pulling lightly on the key then release gently to tighten my belt

Make sure the belt is correctly positioned: right in the center of the bearings.

Start the engine and visually check that the belt is rotating correctly and that there are no suspicious noises.

Replace the mudguard and wheel.