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How to change front wheel bearing on Mercedes W124 – replacement guide
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Important!
This replacement procedure can be used for:
MERCEDES-BENZ E-Class Saloon (W124) E 250 D (124.126, 124.129), MERCEDES-BENZ E-Class Saloon (W124) E 300 D (124.131), MERCEDES-BENZ E-Class Saloon (W124) E 200 (124.019), MERCEDES-BENZ E-Class Saloon (W124) E 220 (124.022), MERCEDES-BENZ E-Class Saloon (W124) E 280 (124.029), MERCEDES-BENZ E-Class Saloon (W124) E 280 (124.028), MERCEDES-BENZ E-Class Saloon (W124) E 320 (124.032), MERCEDES-BENZ E-Class Saloon (W124) E 200 D (124.120), MERCEDES-BENZ E-Class Saloon (W124) E 250 Turbo-D (124.128), MERCEDES-BENZ E-Class Saloon (W124) E 300 Turbo-D (124.133) … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ E-Class Saloon (W124) E 250 D (124.126, 124.129), MERCEDES-BENZ E-Class Saloon (W124) E 300 D (124.131), MERCEDES-BENZ E-Class Saloon (W124) E 200 (124.019), MERCEDES-BENZ E-Class Saloon (W124) E 220 (124.022), MERCEDES-BENZ E-Class Saloon (W124) E 280 (124.029), MERCEDES-BENZ E-Class Saloon (W124) E 280 (124.028), MERCEDES-BENZ E-Class Saloon (W124) E 320 (124.032), MERCEDES-BENZ E-Class Saloon (W124) E 200 D (124.120), MERCEDES-BENZ E-Class Saloon (W124) E 250 Turbo-D (124.128), MERCEDES-BENZ E-Class Saloon (W124) E 300 Turbo-D (124.133) … View more
The steps may slightly vary depending on the car design.
How to change front wheel bearing on MERCEDES W124 [TUTORIAL AUTODOC]

All the parts you need to replace – Wheel Bearing for E-Class Saloon (W124) and other MERCEDES-BENZ models
Alternative products

Wire brush
Nylon cleaning brush
WD-40 spray
All-purpose cleaning spray
Bearing grease
Ceramic grease
Torque wrench
Combination spanner #19
Combination spanner #22
Drive socket # 19
HEX bit no.H5
Wheel impact socket #17
Ratchet wrench
Tap wrench
Bush and bearing driver set
Universal puller
Hammer
Crow bar
Wheel chock
Replacement: wheel bearing – Mercedes W124. Professionals recommend:
- Do not re-use the bearing assembly of your Mercedes W124 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 W124. Recommended sequence of steps:
- Step 1
Open the bonnet. - Step 2
Unscrew the brake fluid reservoir cap. - Step 3Secure the wheels with chocks.Step 4
Loosen the wheel bolts. Use wheel impact socket #17. Use a tap wrench. - Step 5
Raise the car.Replacement: wheel bearing – Mercedes W124. AUTODOC recommends: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 6
Unscrew the wheel bolts.AUTODOC recommends:To avoid injury, hold up the wheel when unscrewing the bolts. - Step 7
Remove the wheel. - Step 8
Spread the brake pads. Use a crowbar. - Step 9
Clean the brake caliper bracket fasteners. Use a wire brush. Use WD-40 spray. - Step 10
Unscrew the brake caliper bracket fasteners. Use a combination spanner #19. - Step 11
Remove the fastening bolts. - Step 12
Remove the brake caliper together with its bracket.Replacement: wheel bearing – Mercedes W124. 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 13
Clean the brake disc fastener. Use a wire brush. Use WD-40 spray. - Step 14
Unscrew the brake disc fasteners. Use HEX No.H5. Use a ratchet wrench. - Step 15
Remove the fastening bolt. - Step 16
Remove the brake disc. - Step 17
Remove the hub bearing cap. Use a crowbar. Use a hammer. - Step 18
Remove the contact spring. - Step 19
Loosen the wheel hub fastening nut screw. Use HEX No.H5. Use a ratchet wrench. - Step 20
Unscrew the hub nut. - Step 21
Remove the wheel hub together with the bearing. - Step 22
Clean the wheel stub axle. Use all-purpose cleaning spray. - Step 23
Clean the ABS sensor. Use a nylon cleaning brush. Use all-purpose cleaning spray. - Step 24
Remove elements of the bearings from the wheel hub. Use a bush and bearing driver set. - Step 25
Dismantle the outer bearing races. Use a bush and bearing driver set. Use a universal puller. - Step 26
Clean the mounting seats of the wheel bearings. Use all-purpose cleaning spray. - Step 27
Install the outer rings of the new wheel bearings. Use a bush and bearing driver set. - Step 28
Treat the wheel bearings. Use bearing grease. - Step 29
Reinstall the elements of the bearings in the wheel hub. - Step 30
Install the wheel bearing oil seal. Use a bush and bearing driver set. - Step 31
Reinstall the hub together with the new bearings.
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