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

Important!

This replacement procedure can be used for:
MERCEDES-BENZ C-Class Saloon (W204) C 180 CDI (204.000), MERCEDES-BENZ C-Class Saloon (W204) C 200 CDI (204.001), MERCEDES-BENZ C-Class Saloon (W204) C 250 CDI 4-matic (204.082), MERCEDES-BENZ C-Class Saloon (W204) C 200 (204.048), MERCEDES-BENZ C-Class Saloon (W204) C 200 CDI (204.007, 204.006), MERCEDES-BENZ C-Class Saloon (W204) C 180 Kompressor (204.046), MERCEDES-BENZ C-Class Saloon (W204) C 200 Kompressor (204.041), MERCEDES-BENZ C-Class Saloon (W204) C 230 (204.052), MERCEDES-BENZ C-Class Saloon (W204) C 280 (204.054), MERCEDES-BENZ C-Class Saloon (W204) C 230 4-matic (204.085), MERCEDES-BENZ C-Class Saloon (W204) C 280 4-matic (204.081), MERCEDES-BENZ C-Class Saloon (W204) C 180 Kompressor (204.044, 204.045), MERCEDES-BENZ C-Class Saloon (W204) C 220 CDI (204.002), MERCEDES-BENZ C-Class Saloon (W204) C 250 CGI (204.047), MERCEDES-BENZ C-Class Saloon (W204) C 300 (204.054), MERCEDES-BENZ C-Class Saloon (W204) C 300 4-matic (204.081), MERCEDES-BENZ C-Class Saloon (W204) C 180 CGI (204.049), MERCEDES-BENZ C-Class Saloon (W204) C 200 CGI (204.048), MERCEDES-BENZ C-Class Saloon (W204) C 220 CDI (204.008), MERCEDES-BENZ C-Class Saloon (W204) C 220 CDI 4-matic (204.084), MERCEDES-BENZ C-Class Saloon (W204) C 220 CDI (204.002), MERCEDES-BENZ C-Class Saloon (W204) C 180 CGI (204.031) … View more

The steps may slightly vary depending on the car design.

How to change rear brake discs on MERCEDES W204 [TUTORIAL AUTODOC]

Alternative products

Brake disc

Replacement: brake discs – Mercedes W204. Tools you need:

                      Wire brush
                    
                      Nylon cleaning brush
                    
                      WD-40 spray
                    
                      Electronic spray
                    
                      All-purpose cleaning spray
                    
                      Brake cleaner 
                    
                      Anti-squeal paste
                    
                      Ceramic grease
                    
                      Torque wrench
                    
                      Combination spanner #18
                    
                      Torx bit E10
                    
                      Torx bit T30
                    
                      HEX bit no.H7
                    
                      Wheel impact socket #17
                    
                      Ratchet wrench
                    
                      Flat screwdriver
                    
                      Impact screwdriver
                    
                      Long nose pliers
                    
                      Brake caliper wind back tool
                    
                      Crow bar
                    
                      Wheel chock

Buy tools

AUTODOC recommends:

Replace the brake disks on the car Mercedes W204 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.
Please note: all work on the car – Mercedes W204 – should be done with the engine switched off.

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 car.

Replacement: brake discs – Mercedes W204. AUTODOC experts recommend:
If you are using a jack, make sure it rests on a flat surface without any unevenness.Be sure to additionally secure the car with jack stands.
Step 5

Unscrew the wheel bolts.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. Mercedes W204
Step 6

Remove the wheel.
Step 7

Detach the connector of the brake pad wear sensor. Use long nose pliers.
Step 8

Clean the fasteners of the brake pad wear sensor wiring harness. Use a wire brush. Use WD-40 spray.
Step 9

Unscrew the fasteners of the brake pad wear sensor wiring harness. Use Torx E10. Use a ratchet wrench.
Step 10

Remove the fastening bolt.
Step 11

Detach the brake pad wear sensor wiring harness.
Step 12

Detach the brake caliper retaining spring. Use a crowbar.
Step 13

Remove the dust boot caps of the brake caliper guide pins. Use a crowbar.
Step 14

Unscrew the brake caliper fasteners. Use HEX No.H7. Use a ratchet wrench.
Step 15

Spread the brake pads. Use a crowbar.
Step 16

Remove the brake caliper.

Replacement: brake discs – Mercedes W204. 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.
Step 17

Remove the brake pads.
Step 18

Clean the brake caliper bracket fasteners. Use a wire brush. Use WD-40 spray.
Step 19

Unscrew the brake caliper bracket fasteners. Use a combination spanner #18.
Step 20

Remove the fastening bolts.
Step 21

Remove the caliper bracket.
Step 22

Clean the brake disc fastener. Use a wire brush. Use WD-40 spray.
Step 23

Unscrew the brake disc fastening. Use Torx T30. Use an impact screwdriver.
Step 24

Remove the fastening bolt.
Step 25

Release the parking brake adjuster. Use a flat screwdriver.
Step 26

Remove the brake disc.
Step 27

Clean the hub. Use a wire brush. Use all-purpose cleaning spray.
Step 28

Treat the contacting surface. Use ceramic grease.
Step 29

Install the brake disc.
Step 30

Install the fastening bolt.
Step 31

Tighten the brake disc fastening. Use Torx T30. Use a torque wrench. Tighten it to 10 Nm torque.
Step 32

Set the parking brake adjuster in the correct position. Use a flat screwdriver.
Step 33

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

AUTODOC recommends:
Replacement: brake discs – Mercedes W204. After applying the spray, wait a few minutes.
Step 34

Install the brake caliper bracket.
Step 35

Install the fastening bolts.
Step 36

Tighten the brake caliper bracket fasteners. Use a combination spanner #18. Use a torque wrench. Tighten it to 115 Nm torque.
Step 37

Treat the brake caliper piston. Use a nylon cleaning brush. Use a brake cleaner.

AUTODOC recommends:
After applying the spray, wait a few minutes.Check the brake caliper bracket, brake caliper guide pins and boots. Clean them. Replace, if necessary.
Step 38

Press in the brake caliper piston. Use brake caliper wind back tool.
Step 39

Treat the brake pads in the area where their surface comes into contact with the brake caliper bracket. Use anti-squeal paste.

Replacement: brake discs – Mercedes W204. AUTODOC experts recommend:
Make sure the disc surface is clean before installing the pads.
Step 40

Install the brake pads.
Step 41

Install the brake caliper and fix it.
Step 42

Tighten the brake caliper fasteners. Use HEX No.H7. Use a torque wrench. Tighten it to 25 Nm torque.
Step 43

Install the dust boot caps of the brake caliper guide pins.
Step 44

Attach the brake pad wear sensor wiring harness.
Step 45

Install the fastening bolt.
Step 46

Tighten the fasteners of the brake pad wear sensor wiring harness. Use Torx E10. Use a torque wrench. Tighten it to 8 Nm torque.
Step 47

Treat the brake pad wear sensor plug. Use dielectric grease.
Step 48

Attach the connector of the brake pad wear sensor. Install the brake caliper retaining spring.
Step 49

Treat the surface where the brake disc contacts the wheel rim. Use ceramic grease.
Step 50

Clean the brake disk surface. Use a brake cleaner.

AUTODOC recommends:
After applying the spray, wait a few minutes.
Step 51

Install the wheel.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. Mercedes W204
Step 52

Screw in the wheel bolts. Use wheel impact socket #17.
Step 53

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 130 Nm torque.
Step 54

Remove the jacks and chocks.

Replacement: brake discs – Mercedes W204. AUTODOC experts recommend:
Without starting the engine, press the brake pedal several times until you feel significant resistance.Check the brake fluid level in the expansion tank and refill if necessary.
Step 55

Tighten the brake fluid reservoir cap. Close the hood.

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Need New Tyres?

Find out which tyre and wheel sizes are compatible with the MERCEDES-BENZ C-Class Saloon (W204) model

W204 tyre size

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