How to change front brake discs on MERCEDES-BENZ V-Class (W447) – replacement guide
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Recommended replacement interval for the part category Brake disc : 50000km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ V-Class (W447) V 200 CDI / d (447.811, 447.813, 447.815),
MERCEDES-BENZ V-Class (W447) V 220 CDI / d (447.811, 447.813, 447.815),
MERCEDES-BENZ V-Class (W447) V 250 BlueTEC / d (447.811, 447.813, 447.815),
MERCEDES-BENZ V-Class (W447) V 250 BlueTEC / d 4-matic (447.811, 447.813, 447.815),
MERCEDES-BENZ V-Class (W447) V 200 CDI / d 4-matic (447.811, 447.813, 447.815),
MERCEDES-BENZ V-Class (W447) V 250 (447.813, 447.815),
MERCEDES-BENZ V-Class (W447) V 220 CDI / d 4-matic (447.811, 447.813),
MERCEDES-BENZ V-Class (W447) V 300 CDI / d (447.811, 447.813, 447.815)
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The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Brake Discs for V-Class (W447) and other MERCEDES-BENZ models
The replacement procedure is identical for both brake disks on the same axle.
Replace the brake disks on the car MERCEDES-BENZ V-CLASS (W447) in complete set for each axis. Regardless of the state of components. This will ensure even braking.
When changing the brake discs, always replace the brake pads.
Please note: all work on the car – MERCEDES-BENZ V-CLASS (W447) – 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 front of the car and secure on supports.
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 14
Remove the brake pads.
Step 15
Clean the brake caliper bracket fasteners. Use a wire brush. Use WD-40 spray.
Step 16
Unscrew the caliper bracket fastening. Use a drive socket #21. Use a ratchet wrench.
Step 17
Remove the caliper bracket.
Step 18
Clean the brake disc fastener. Use a wire brush. Use WD-40 spray.
Step 19
Unscrew the brake disc fastening. Use Torx T30. 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 Torx T30. Use a torque wrench. Tighten it to 18 Nm torque.
Step 24
Clean the brake caliper bracket from dirt and dust. Use a wire brush. Use a brake cleaner.
AUTODOC recommends:
After applying the spray, wait a few minutes.
Step 25
Install the brake caliper bracket.
Step 26
Tighten the brake caliper bracket. Use a drive socket #21. Use a torque wrench. Tighten it to 172 Nm torque.
Step 27
Remove the retaining springs of the brake pads. Use a flat screwdriver.
Step 28
Install the retaining springs of the brake pads.
Step 29
Install the brake pads. Use a flat screwdriver.
Step 30
Treat the brake caliper piston. Use a nylon cleaning brush. Use a brake cleaner.