Recommended replacement interval for the part category Brake Drum : 100000 km

Important!

This replacement procedure can be used for:
MERCEDES-BENZ A-Class (W168) A 140 (168.031, 168.131), MERCEDES-BENZ A-Class (W168) A 160 (168.033, 168.133) … View more

The steps may slightly vary depending on the car design.

How to change rear brake drums and rear brake pads on MERCEDES-BENZ A W168 TUTORIAL | AUTODOC

All the parts you need to replace – Brake Drum for A-Class (W168) and other MERCEDES-BENZ models

Brake Drum

MERCEDES-BENZ A-Class (W168) A 160 (168.033, 168.133)

MERCEDES-BENZ A-Class (W168) A 140 (168.031, 168.131)

Replacement: brake drum – Mercedes W168. Tools you'll need:

                        Wire brush
                      
                        WD-40 spray
                      
                        Copper grease 
                      
                        Torx bit T30
                      
                        HEX bit no.H6.
                      
                        Wheel impact socket #17
                      
                        Ratchet wrench
                      
                        Torque wrench
                      
                        Flat Screwdriver
                      
                        Wheel chock

Buy tools

Replacement: brake drum – Mercedes W168. AUTODOC experts recommend:

Replace the brake drums on Mercedes W168 in pair for the rear axle. Disregarding the parts state. It ensures even braking.
The replacement procedure is identical for the right and left brake drums on the same axle.
When replacing the brake drums, be sure to also change the brake shoes.
All work should be done with the engine stopped.

Replacement: brake drum – Mercedes W168. Recommended sequence of steps:

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 rear of the car and secure on supports.
Step 5

Unscrew the wheel bolts.

AUTODOC recommends:

Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. Mercedes W168
Step 6

Remove the wheel.
Step 7

Clean the brake drum fasteners.Use a wire brush.Use WD-40 spray.
Step 8

Unscrew the brake drum fastening.Use HEX No.H6.Use a ratchet wrench.
Step 9

Remove the brake drum.Use a rubber mallet.

Replacement: brake drum – Mercedes W168. Tip:

Examine the brake shoes. Replace them if needed.
Step 10

Clean the hub.Use a wire brush.Treat the contacting surface.Use copper grease.
Step 11

Install a brake drum.
Step 12

Tigten the brake drum fasteners.Use a flat screwdriver.Use Torx T30.Use a torque wrench.Tighten it to 10 Nm torque.
Step 13

Clean the wheel rim mounting seat. Use a wire brush.

Step 14

Treat the surface where the wheel rim contacts the brake drum.Use copper grease.
Step 15

Install the wheel.

Replacement: brake drum – Mercedes W168. AUTODOC recommends:

To avoid injury, hold up the wheel when screwing in the fastening bolts.
Step 16

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

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 18

Remove the jacks and chocks.

AUTODOC recommends:

Important! Replacement: brake drum – Mercedes W168. Check the brake fluid level in the reservoir and top up if necessary.
Step 19

Tighten the brake fluid reservoir cap. Close the hood.
Step 20

Adjust the gap between the brake shoes and the drum on Mercedes W168, pressing the brake pedal 10-15 times.

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