Important!

This replacement procedure can be used for:
MERCEDES-BENZ M-Class (W163) ML 350, MERCEDES-BENZ M-Class (W163) ML 350 (163.157), MERCEDES-BENZ M-Class (W163) ML 500 (163.175), MERCEDES-BENZ M-Class (W163) ML 400 CDI (163.128), MERCEDES-BENZ M-Class (W163) ML 55 AMG (163.174), MERCEDES-BENZ M-Class (W163) ML 430 (163.172), MERCEDES-BENZ M-Class (W163) ML 230 (163.136), MERCEDES-BENZ M-Class (W163) ML 320 (163.154) … View more

The steps may slightly vary depending on the car design.

How to change front wheel bearing on MERCEDES-BENZ M W163 TUTORIAL | AUTODOC

All the parts you need to replace – Wheel Bearing for M-Class (W163) and other MERCEDES-BENZ models

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Replacement: wheel bearing – Mercedes ML W163. List of the tools you'll need:

                      Wire brush
                    
                      WD-40 spray
                    
                      Brake cleaner 
                    
                      Multipurpose grease
                    
                      Copper grease 
                    
                      Combination spanner #19
                    
                      Combination spanner #22
                    
                      Impact socket №10
                    
                      Impact socket №E10
                    
                      Impact socket №21
                    
                      Impact socket №22
                    
                      Impact socket №36
                    
                      Torx bit T30
                    
                      Wheel impact socket #17
                    
                      Ratchet wrench
                    
                      Torque wrench
                    
                      Hammer
                    
                      Ball joint puller
                    
                      Circlip pliers
                    
                      Bush and bearing driver set
                    
                      Flat Screwdriver
                    
                      Crow bar
                    
                      Wheel chock

Buy tools

Replacement: wheel bearing – Mercedes ML W163. Tip from AUTODOC:

Do not re-use the bearing assembly of your Mercedes ML W163 car.
The wheel hub bearing replacement procedure is identical for both wheels on the same axle.
All work should be done with the engine stopped.

Replacement: wheel bearing – Mercedes ML W163. Recommended sequence of steps:

Step 1

Secure the wheels with chocks.

Step 2

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

Step 3

Raise the front of the car and secure on supports.

Step 4

Unscrew the wheel bolts.

Replacement: wheel bearing – Mercedes ML W163. AUTODOC experts recommend:
To avoid injury, hold up the wheel when unscrewing the bolts.
Step 5

Remove the wheel.
Step 6

Clean the brake caliper bracket fasteners. Use a wire brush. Use WD-40 spray.
Step 7

Spread the brake pads. Use a crowbar.

Step 8

Unscrew the caliper bracket fastening. Use a drive socket #21. Use a ratchet wrench.
Step 9

Remove the brake caliper together with its bracket. Use a flat screwdriver.

Replacement: wheel bearing – Mercedes ML W163. AUTODOC recommends:
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 10

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

Step 11

Unscrew the brake disc fastening. Use Torx T30. Use a ratchet wrench.
Step 12

Remove the brake disc. Use a hammer.
Step 13

Unscrew the wheel hub axle nut. Use a drive socket #36.
Step 14

Unscrew the end fastening nut to the steering knuckle. Use a drive socket #22. Use a ratchet wrench.
Step 15

Disconnect the tie rod end from the steering knuckle. Use a ball joint puller.
Step 16

Unscrew the ABS sensor fastening from the steering knuckle. Use a drive socket #10. Use a drive socket #E10. Use a ratchet wrench.
Step 17

Remove the ABS sensor from the steering knuckle.

Step 18

Clean the fastener connecting the ball joint to the steering knuckle. Use a wire brush. Use WD-40 spray.

Step 19

Unscrew the top fastening of the ball joint. Use a combination spanner #19.
Step 20

Disconnect the ball joint from the steering knuckle. Use a crowbar.
Step 21

Remove the drive shaft.

Step 22

Unscrew the lower ball joint fastening from the steering knuckle. Use a combination spanner #22.
Step 23

Disconnect the ball joint from the steering knuckle.

Step 24

Remove the steering knuckle together with the hub.
Step 25

Press the wheel hub out from the tapered roller bearing. Use a bush and bearing driver set. Use a hammer.
Step 26

Remove the retaining ring. Use circlip pliers.
Step 27

Press out the wheel hub bearing. Use a bush and bearing driver set.

Replacement: wheel bearing – Mercedes ML W163. Tip:
Apply special grease to the bearing assembly mounting seat.
Step 28

Press the new bearing in the steering knuckle.
Step 29

Install the retaining ring. Use circlip pliers.
Step 30

Press the wheel hub into the bearing inner race. Use a bush and bearing driver set.
Step 31

Install the steering knuckle with a hub in assembly.
Step 32

Connect the ball joint to the steering knuckle.

Step 33

Tighten the lower fastening of the ball joint. Use a combination spanner #22. Use Torx T30. Use a torque wrench. Tighten it to 75 Nm torque.
Step 34

Install the drive shaft into the wheel hub.

Step 35

Connect the ball joint to the steering knuckle. Use a crowbar.

Step 36

Tighten the top fastening of the ball joint. Use a combination spanner #19. Use a torque wrench. Tighten it to 50 Nm torque.
Step 37

Install the ABS sensor on the steering knuckle and secure it. Use a drive socket #10. Use a drive socket #E10. Use a ratchet wrench.
Step 38

Tighten the hub. Use a drive socket #36. Use a torque wrench. Observe the recommended tightening torque.
Step 39

Connect the tie rod end to the steering knuckle.

Step 40

Tighten the fastening nut connecting the tie rod end to the steering knuckle. Use a drive socket #22. Use a torque wrench. Tighten it to 55 nm torque.
Step 41

Install the brake disc.
Step 42

Tighten the brake disc fastening. Use Torx T30. Use a torque wrench. Tighten it to 9 nm torque.
Step 43

Install the brake caliper together with its bracket.
Step 44

Tighten the brake caliper bracket. Use a drive socket #21. Use a torque wrench. Tighten it to 180 nm torque.
Step 45

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

Step 46

Clean the brake disk surface. Use a brake cleaner.

AUTODOC recommends:
Replacement: wheel bearing – Mercedes ML W163. After applying the spray, wait a few minutes.
Step 47

Install the wheel.

Replacement: wheel bearing – Mercedes ML W163. Professionals recommend:
To avoid injury, hold up the wheel when screwing in the fastening bolts.
Step 48

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

Step 49

Lower the car and working in a cross order, tighten the wheel bolts. Use a torque wrench. Tighten it to 150 Nm torque.

Step 50

Remove the jacks and chocks.

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