Important!
This replacement procedure can be used for:
MERCEDES-BENZ A-Class (W169) A 150 (169.031, 169.331), MERCEDES-BENZ B-Class (W245) B 150 (245.231)

The steps may slightly vary depending on the car design.

How to change front brake discs and brake pads MERCEDES-BENZ A W169 TUTORIAL | AUTODOC

Required tools:
Required tools:
Wire brush
WD-40 spray
Brake cleaner
Anti-squeal paste
Copper grease
Combination spanner #17
Drive socket # 13
Wheel impact socket #17
Ratchet wrench
Torque wrench
Brake caliper wind back tool
Round-nose pliers
Crow bar
Wheel chock
All the parts you need to replace – Brake Pads for A-Class (W169) and other MERCEDES-BENZ models
How to change Brake Pad Set, disc brake on Mercedes W169 A 180 CDI 2.0 (169.007, 169.307) – step-by-step instructions for straightforward car repair
Brake Pad Set, disc brake
How to change Brake Pad Set, disc brake on MERCEDES-BENZ A-Class (W169) A 150 (169.031, 169.331) – tips for proper car maintenance
MERCEDES-BENZ A-Class (W169) A 150 (169.031, 169.331)
Simple DIY car repair steps – Replacing Brake Pad Set, disc brake on MERCEDES-BENZ B-Class (W245) B 150 (245.231)
MERCEDES-BENZ B-Class (W245) B 150 (245.231)
AUTODOC recommends:
  • Perform the replacement of brake pads in complete set for each axis. This provides effective braking.
  • The replacement procedure is identical for all brake pads on the same axle.
  • All work should be done with the engine stopped.
Carry out replacement in the following order:
  1. How to change Brake Pads on Mercedes W169 2004 - free PDF and video manuals
    Step 1
    Open the bonnet.Unscrew the brake fluid reservoir cap.
  2. How to replace MERCEDES-BENZ A-Class (W169) A 180 CDI 2.0 (169.007, 169.307) 2005 Brake Pads - step-by-step manuals and video guides
    Step 2
    Secure the wheels with chocks.
  3. Mercedes W169 A 150 1.5 (169.031, 169.331) 2006 Brake Pads replacement: free workshop manuals
    Step 3
    Loosen the wheel mounting bolts.Use wheel impact socket #17.
    Step 4
    Raise the front of the car and secure on supports.
  4. Changing Brake Pads on MERCEDES-BENZ A-Class (W169) A 160 CDI 2.0 (169.006, 169.306) 2007 by yourself
    Step 5
    Unscrew the wheel bolts.
    AUTODOC recommends:
    To avoid injury, hold up the wheel when unscrewing the bolts.
  5. How to remove MERCEDES-BENZ A-CLASS A 200 CDI 2.0 (169.008, 169.308) 2008 Brake Pads - online easy-to-follow instructions
    Step 6
    Remove the wheel.
  6. How to replace Brake Pads on MERCEDES-BENZ A-Class (W169) 2009: download PDF manuals and video instructions
    Step 7
    Disconnect the brake pad wear sensor plug.Use round-nose pliers.
    Please note!
    Some cars are not equipped with the brake pad wear sensor.
    Step 8
    Clean the brake caliper fasteners. Use a wire brush.Use WD-40 spray.
  7. How hard is it to do yourself: Brake Pads replacement on Mercedes W169 A 200 2.0 (169.033, 169.333) 2010 - download illustrated guide
    Step 9
    Spread the brake pads.Use a crowbar.
  8. Need to know how to renew Brake Pads on MERCEDES-BENZ A-CLASS ? This free workshop manual will help you to do it yourself
    Step 10
    Unscrew the brake caliper fastening.Use a combination spanner #17.Use a drive socket #13.Use a ratchet wrench.
  9. Changing of Brake Pads on Mercedes W169 2012 won't be an issue if you follow this illustrated step-by-step guide
    Step 11
    Remove the brake caliper.
    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.
  10. MERCEDES-BENZ A-CLASS A 200 2.0 Turbo (169.034, 169.334) Brake Pads replacement: online guides and video tutorials
    Step 12
    Remove the brake pads.Use a crowbar.
  11. Replacing Brake Pads on Mercedes W169 2005 A 180 CDI 2.0 (169.007, 169.307) by yourself
    Step 13
    Remove the brake pads retaining clips. Use a crowbar.
    AUTODOC recommends:
    Measure the brake disc thickness. Upon reaching the wear limit the part must be replaced.
    Step 14
    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.
  12. A-Class (W169) A 200 CDI 2.0 (169.008, 169.308) 2006 Brake Pads DIY replacement workshop manual
    Step 15
    Install the brake pads retaining clips. Use a crowbar.
    Step 16
    Treat the brake caliper piston.Use a brake cleaner.
    AUTODOC recommends:
    After applying the spray, wait a few minutes.
    Step 17
    Press in the brake caliper piston.Use brake caliper wind back tool.
  13. How to change Brake Pads on MERCEDES-BENZ A-Class (W169) 2007 - tips and tricks
    Step 18
    Treat the brake pads in the area where their surface comes into contact with the brake caliper bracket. Use anti-squeal paste.
    AUTODOC recommends:
    Make sure the disc surface is clean before installing the pads.
  14. Step-by-step recommendations for DIY replacement Mercedes W169 2008 A 200 CDI 2.0 (169.008, 169.308) Brake Pads
    Step 19
    Install new brake pads.
    AUTODOC recommends:
    Make sure the pads are installed with linings facing the disc.
  15. DIY replacement of Brake Pads on MERCEDES-BENZ A-Class (W169) A 170 1.7 (169.032, 169.332) 2009 is not an issue anymore with our step-by-step tutorial
    Step 20
    Install the brake caliper and fix it.Use a drive socket #13.Use a combination spanner #17.Use a torque wrench.Tighten it to 35 Nm torque.
  16. How to change Brake Pads on Mercedes W169 2004 - free PDF and video manuals
    Step 21
    Connect the brake pad wear sensor plug.Use round-nose pliers.
    Step 22
    Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
  17. How to replace MERCEDES-BENZ A-Class (W169) A 180 CDI 2.0 (169.007, 169.307) 2005 Brake Pads - step-by-step manuals and video guides
    Step 23
    Clean the brake disk surface.Use a brake cleaner.
    AUTODOC recommends:
    After applying the spray, wait a few minutes.
  18. Mercedes W169 A 150 1.5 (169.031, 169.331) 2006 Brake Pads replacement: free workshop manuals
    Step 24
    Install the wheel.
    AUTODOC recommends:
    To avoid injury, hold up the wheel when screwing in the fastening bolts.
  19. Changing Brake Pads on MERCEDES-BENZ A-Class (W169) A 160 CDI 2.0 (169.006, 169.306) 2007 by yourself
    Step 25
    Screw in the wheel bolts.Use wheel impact socket #17.
  20. How to remove MERCEDES-BENZ A-CLASS A 200 CDI 2.0 (169.008, 169.308) 2008 Brake Pads - online easy-to-follow instructions
    Step 26
    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.
  21. How to replace Brake Pads on MERCEDES-BENZ A-Class (W169) 2009: download PDF manuals and video instructions
    Step 27
    Remove the jacks and chocks.
    AUTODOC recommends:
    Check the brake fluid level in the expansion tank and refill if necessary.
  22. How hard is it to do yourself: Brake Pads replacement on Mercedes W169 A 200 2.0 (169.033, 169.333) 2010 - download illustrated guide
    Step 28
    Tighten the brake fluid reservoir cap. Without starting the engine, press the brake pedal several times until you feel significant resistance.
  23. Need to know how to renew Brake Pads on MERCEDES-BENZ A-CLASS ? This free workshop manual will help you to do it yourself
    Step 29
    Close the hood.
    AUTODOC recommends:
    Slow down smoothly for first 150-200 km after the brake pads replacement. Avoid unneccessary and sharp braking to a stop.
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DIY MERCEDES-BENZ A-Class (W169) Brake Pads replacement - online guide
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