Peugeot 308: Removing - refitting : Front brake caliper

ESSENTIAL : Observe the safety and cleanliness recommendations .

ESSENTIAL : All personnel carrying out work on a vehicle fitted with traction batteries must have received specific electric vehicle training and be authorised to work on these vehicles (observe the regulations in force in the respective country).

1. Replacement of parts in all cases

Description	Quantity
Bolt (Front brake caliper bracket)	2 (Per side)
Front brake hose	1 (Per side)

CAUTION : The brake caliper bolts are not always replaced with new bolts ; If the bolts are reused, clean the thread and apply thread lock index "E3" .

2. Tooling

Use the products recommended by the manufacturer .

Workshop equipment :

• A pedal press
• A plastic receptacle
• A bleed pipe
• Piston pushing tool

3. Preliminary operations

Raise and chock the vehicle at mid-height (Front wheels suspended).

Remove the front wheel.

Place a bleed pipe on the slave cylinder of the brake hose to be removed.

Dip the pipe in the receptacle.

Open the bleeder.

Place the pedal press on the brake pedal in order to prevent the discharge of any brake fluid when disconnecting the brake pipes.

Close the bleeder.

Remove and drain the pipe and the receptacle.

4. Removing

4.1. Front brake caliper

CAUTION : Never separate the front brake hose from its support (In "a") ; Risk of seriously damaging the brake hose.

N.B. : Prepare for the flow of brake fluid.

Uncouple the front brake hose (In "b").

Remove :

• The front brake hose
• The bolts (1)
• The front brake caliper (2)
• The brake pads

N.B. : The brake pads, on the wheel inner side, are clipped into the piston of the brake caliper (2).

4.2. Front brake caliper bracket

Remove :

• The 2 bolts (3)
• The brake caliper (4) bracket

5. Cleaning

ESSENTIAL : Do not use compressed air to clean the brakes.

5.1. First possibility

Clean the brake disc and caliper (2) ; With a recommended brake cleaning product.

Leave to drip dry.

Wipe with a paper towel :

• The brake disc
• The front brake caliper (2)

5.2. Second possibility

Use dust removal equipment approved by the manufacturer .

6. Check

Visually check :

• The sealing around the brake caliper piston
• The adjustment and condition of the protective gaiters
• The condition of the protector (No cracking or breaking at the fixings)
• The wear of the brake discs

Replace any defective parts.

CAUTION : No trace of grease, oil or lubricant can be tolerated on the brake pads.

7. Refitting

CAUTION : Observe the tightening torques.

INTERNAL COMBUSTION DRIVE TRAIN OR MHEV DRIVE TRAIN

Tightening torques :

• Braking system
• Wheels

PHEV DRIVE TRAIN

Tightening torques :

• Braking system
• Wheels

ELECTRIC DRIVE TRAIN

Tightening torques :

• Braking system
• Wheels

7.1. Front brake caliper bracket

CAUTION : Clean the threads of the bolts (3).

Refit :

• The brake caliper (4) bracket
• The new bolts (3)

7.2. Front brake caliper

Push the brake caliper piston fully back into its housing ; Using a piston pushing tool.

N.B. : Place spacer between the tool and the brake pad to push the piston right back into its housing.

CAUTION : The brake caliper bolts (2) are not always replaced with new bolts ; If the bolts (2) are reused, clean the thread and apply thread lock index "E3" .

Refit :

• The brake pads
• The front brake caliper (2)
• The brake caliper bolts (1)
• The new front brake hose ‎

Couple the brake hose to the brake caliper (2) (In "b").

8. Additional operations

Visually inspect the routing and condition of the brake hoses and pipes.

Clean any splashes of fluid from the surrounding area.

Remove the pedal press .

Fill and bleed the braking circuit.

Refit :

• The front wheel
• The vehicle to its wheels