Recommended replacement interval for the part category Brake Disc : 50000 km

Important!

This replacement procedure can be used for:
MERCEDES-BENZ C-Class Saloon (W202) C 220 (202.022) … View more

The steps may slightly vary depending on the car design.

How to change brake discs and brake pads on MERCEDES W202 [TUTORIAL AUTODOC]

All the parts you need to replace – Brake Discs for C-Class Saloon (W202) and other MERCEDES-BENZ models

Brake Disc

Brake Disc for MERCEDES-BENZ C-Class Saloon (W202) C 220 (202.022) Petrol (150 hp)

Replacement: brake discs – Mercedes W202. Tools you might need:

                        Wire brush
                      
                        WD-40 spray
                      
                        Brake cleaner
                      
                        Brake caliper guide pins grease
                      
                        Copper grease
                      
                        Sealant
                      
                        Combination spanner #15
                      
                        Drive socket # 13
                      
                        Drive socket # 19
                      
                        HEX bit no.H5.
                      
                        Wheel impact socket #17
                      
                        Ratchet wrench
                      
                        Torque wrench
                      
                        Brake caliper wind back tool
                      
                        Flat Screwdriver
                      
                        Crow bar
                      
                        Wheel chock

Buy tools

Replacement: brake discs – Mercedes W202. Tip from AUTODOC experts:

Replace the brake disks on the car Mercedes W202 in complete set for each axis. Regardless of the state of components. This will ensure even braking.
The replacement procedure is identical for both brake disks on the same axle.
When changing the brake discs, always replace the brake pads.
Warning! Shut down the engine before starting any work – Mercedes W202.

Carry out replacement in the following order:

Step 1

Open the bonnet.Unscrew the brake fluid reservoir cap.
Step 2

Secure the wheels with chocks.
Step 3

Loosen the wheel mounting bolts.Use wheel impact socket #17.
Step 4

Raise the front of the car and secure on supports.

Step 5

Unscrew the wheel bolts.

Replacement: brake discs – Mercedes W202. Tip:

To avoid injury, hold up the wheel when unscrewing the bolts.
Step 6

Remove the wheel.
Step 7

Spread the brake pads.Use a crowbar.
Step 8

Clean the brake caliper fasteners.Use a wire brush.Use WD-40 spray.
Step 9

Unscrew the brake caliper fastening.Use a combination spanner #15.Use a drive socket #13.Use a ratchet wrench.
Step 10

Remove the fastening bolts (2 pieces).

Step 11

Disconnect the brake pads wear sensor.Use a flat screwdriver.
Step 12

Remove the brake caliper.

Replacement: brake discs – Mercedes W202. AUTODOC experts recommend:

Tie the caliper to the suspension or to the body with a wire without disconnecting from the brake hose to prevent depressurization of the brake system.Make sure that the brake caliper is not hanging on the brake hose.Don't press the brake pedal after the brake caliper has been removed. As a result, the piston can fall out from the brake cylinder, and brake fluid leakage and depressurization of the system may occur.Check the brake caliper bracket, brake caliper guide pins and boots. Clean them. Replace, if necessary.
Step 13

Remove the brake pads.
Step 14

Clean the brake caliper bracket fasteners. Use a wire brush.Use WD-40 spray.
Step 15

Unscrew the caliper bracket fastening.Use a drive socket #19.Use a ratchet wrench.
Step 16

Remove the fastening bolts (2 pieces).

Step 17

Remove the caliper bracket.
Step 18

Clean the brake disc fasteners.Use a wire brush.Use WD-40 spray.

Step 19

Unscrew the brake disc fastening.Use HEX No.H5.Use a ratchet wrench.
Step 20

Remove the brake disc.
Step 21

Clean the hub.Use a wire brush.Treat the contacting surface.Use copper grease.
Step 22

Install the brake disc.
Step 23

Tighten the brake disc fastening.Use HEX No.H5.Use a torque wrench.Tighten it to 9 Nm torque.
Step 24

Remove the guide pins from the brake caliper.

Step 25

Clean the brake caliper guide pins.
Step 26

Treat the brake caliper guide pins.Use the brake caliper guide pin grease.
Step 27

Screw in the guide pins.
Step 28

Clean the brake caliper bracket from dirt and dust.Use a wire brush.Use a brake cleaner.
Step 29

Treat the fastening bolts.Use a sealant.
Step 30

Install the brake caliper bracket.
Step 31

Install the fastening bolts (2 pieces).

Step 32

Tighten the brake caliper bracket.Use a drive socket #19.Use a torque wrench.Tighten it to 75 Nm torque.
Step 33

Install the brake pads.
Step 34

Treat the brake caliper piston.Use a brake cleaner.

AUTODOC recommends:

Replacement: brake discs – Mercedes W202. After applying the spray, wait a few minutes.
Step 35

Press in the brake caliper piston.Use brake caliper wind back tool.
Step 36

Install the brake caliper and fix it.
Step 37

Install the fastening bolts (2 pieces).

Step 38

Connect the brake pads wear sensor.Use a flat screwdriver.
Step 39

Tighten the brake caliper fasteners.Use a combination spanner #15.Use a drive socket #13.Use a torque wrench.Tighten it to 45 Nm torque.
Step 40

Treat the surface where the brake disc contacts the wheel rim.Use copper grease.
Step 41

Clean the brake disk surface.Use a brake cleaner.

Replacement: brake discs – Mercedes W202. AUTODOC experts recommend:

After applying the spray, wait a few minutes.
Step 42

Install the wheel.

AUTODOC recommends:

Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. Mercedes W202
Step 43

Screw in the wheel bolts.Use wheel impact socket #17.
Step 44

Lower the car and working in a cross order, tighten the wheel bolts.Use wheel impact socket #17.Use a torque wrench.Tighten it to 120 nm torque.
Step 45

Remove the jacks and chocks.

Replacement: brake discs – Mercedes W202. AUTODOC recommends:

Check the brake fluid level in the expansion tank and refill if necessary.

Step 46

Tighten the brake fluid reservoir cap.Close the hood.

AUTODOC recommends:

Mercedes W202 – Without starting the engine, press the brake pedal several times until it feels firm.

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