When to replace the Brake Pad Wear Sensor on your MERCEDES-BENZ GLK
Recommended replacement interval for the part category Brake pad wear sensor : 30000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ GLK (X204) 350 (204.956), MERCEDES-BENZ GLK (X204) 350 4-matic (204.988), MERCEDES-BENZ GLK (X204) 350 CDI 4-matic (204.992), MERCEDES-BENZ GLK (X204) 250 4-matic (204.937), MERCEDES-BENZ GLK (X204) 280 4-matic (204.981), MERCEDES-BENZ GLK (X204) 350 4-matic (204.987), MERCEDES-BENZ GLK (X204) 320 CDI 4-matic (204.983), MERCEDES-BENZ GLK (X204) 220 CDI (204.902), MERCEDES-BENZ GLK (X204) 220 CDI 4-matic (204.984, 204.997), MERCEDES-BENZ GLK (X204) 250 CDI 4-matic (204.982, 204.904), MERCEDES-BENZ GLK (X204) 300 4-matic (204.981), MERCEDES-BENZ GLK (X204) 350 CDI 4-matic (204.992), MERCEDES-BENZ GLK (X204) 220 CDI (204.902), MERCEDES-BENZ GLK (X204) 220 CDI 4-matic (204.984), MERCEDES-BENZ GLK (X204) 200 CDI (204.901), MERCEDES-BENZ GLK (X204) 250 (204.936), MERCEDES-BENZ GLK (X204) 200 (204.934), MERCEDES-BENZ GLK (X204) 350 CDI 4-matic (204.993), MERCEDES-BENZ GLK (X204) 200 CDI (204.901), MERCEDES-BENZ GLK (X204) 300 4-matic (204.990), MERCEDES-BENZ GLK (X204) 300 4-matic (204.990) View more

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 Pad Wear Sensor for GLK (X204) and other MERCEDES-BENZ models
How to change Brake pad wear sensor on GLK X204 220 CDI 2.2 4-matic (204.984, 204.997) – step-by-step instructions for straightforward car repair
Brake pad wear sensor
How to change Sensor, brake pad wear on GLK X204 220 CDI 2.2 4-matic (204.984, 204.997) – step-by-step instructions for straightforward car repair
Sensor, brake pad wear
Tools
Replacement: brake pad wear sensor – MERCEDES-BENZ GLK-CLASS (X204). Tools you might need:
Wire brush
Nylon cleaning brush
WD-40 spray
Electronic spray
Brake cleaner
Anti-squeal paste
Ceramic grease
Torque wrench
Combination spanner #17
Drive socket # 13
Wheel impact socket #17
Ratchet wrench
Long nose pliers
Brake caliper wind back tool
Crow bar
Wheel chock
Replacement: brake pad wear sensor – MERCEDES-BENZ GLK-CLASS (X204). Tip from AUTODOC:
  • The replacement procedure is identical for both brake pad wear sensors on the same axle.
  • The wear sensors should be replaced together with the brake pads.
  • Please note: all work on the car – MERCEDES-BENZ GLK-CLASS (X204) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Open the bonnet. Unscrew the brake fluid reservoir cap.
    Step 2
    Secure the wheels with chocks.
    Step 3
    How to change Brake Pad Wear Sensor on GLK X204 2008 - free PDF and video manuals
    Loosen the wheel mounting bolts. Use wheel impact socket #17.
  2. Step 4
    Raise the car.
    Replacement: brake pad wear sensor – MERCEDES-BENZ GLK-CLASS (X204). 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 5
    How to replace MERCEDES-BENZ GLK (X204) 220 CDI 2.2 4-matic (204.984, 204.997) 2009 Brake Pad Wear Sensor - step-by-step manuals and video guides
    Unscrew the wheel bolts.
    AUTODOC recommends:
    Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. MERCEDES-BENZ GLK-CLASS (X204)
  3. Step 6
    GLK X204 320 CDI 3.0 4-matic (204.983) 2010 Brake Pad Wear Sensor replacement: free workshop manuals
    Remove the wheel.
  4. Step 7
    Changing Brake Pad Wear Sensor on MERCEDES-BENZ GLK (X204) 250 CDI 2.2 4-matic (204.982, 204.904) 2011 by yourself
    Detach the connector of the brake pad wear sensor. Use long nose pliers.
  5. Step 8
    How to remove MERCEDES-BENZ GLK 200 CDI 2.2 (204.901) 2012 Brake Pad Wear Sensor - online easy-to-follow instructions
    Spread the brake pads. Use a crowbar.
  6. Step 9
    Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray.
    Step 10
    How to replace Brake Pad Wear Sensor on MERCEDES-BENZ GLK (X204) 2013: download PDF manuals and video instructions
    Unscrew the brake caliper fasteners. Use a combination spanner #17. Use a drive socket #13. Use a ratchet wrench.
  7. Step 11
    How hard is it to do yourself: Brake Pad Wear Sensor replacement on GLK X204 350 CDI 4-matic (204.992) 2014 - download illustrated guide
    Remove the fastening bolts.
  8. Step 12
    Need to know how to renew Brake Pad Wear Sensor on MERCEDES-BENZ GLK 2015? This free workshop manual will help you to do it yourself
    Remove the brake caliper.
    Replacement: brake pad wear sensor – MERCEDES-BENZ GLK-CLASS (X204). Tip:
    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.
  9. Step 13
    Changing of Brake Pad Wear Sensor on GLK X204 2008 won't be an issue if you follow this illustrated step-by-step guide
    Remove the brake pads.
  10. Step 14
    MERCEDES-BENZ GLK 220 CDI 2.2 4-matic (204.984) Brake Pad Wear Sensor replacement: online guides and video tutorials
    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.Check the brake caliper bracket, brake caliper guide pins and boots. Clean them. Replace, if necessary.
  11. Step 15
    Replacing Brake Pad Wear Sensor on GLK X204 2010 220 CDI 2.2 4-matic (204.984, 204.997) by yourself
    Treat the brake caliper piston. Use a nylon cleaning brush. Use a brake cleaner.
    AUTODOC recommends:
    Replacement: brake pad wear sensor – MERCEDES-BENZ GLK-CLASS (X204). After applying the spray, wait a few minutes.
  12. Step 16
    GLK (X204) 200 CDI 2.2 (204.901) 2011 Brake Pad Wear Sensor DIY replacement workshop manual
    Press in the brake caliper piston. Use brake caliper wind back tool.
  13. Step 17
    How to change Brake Pad Wear Sensor on MERCEDES-BENZ GLK (X204) 2012 - tips and tricks
    Attach the new wear sensor to the new pad.
  14. Step 18
    Step-by-step recommendations for DIY replacement GLK X204 2013 200 CDI 2.2 (204.901) Brake Pad Wear Sensor
    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.
  15. Step 19
    DIY replacement of Brake Pad Wear Sensor on MERCEDES-BENZ GLK (X204) 220 CDI 2.2 (204.902) 2014 is not an issue anymore with our step-by-step tutorial
    Install the brake pads.
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DIY MERCEDES-BENZ GLK (X204) Brake Pad Wear Sensor replacement - online guide
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