Brake pads — removal and installation (Mercedes-Benz Vario 814)

Contents: 3.1. Front axle brake pads (models…↡ 3.2. Rear axle brake pads (models…↡

3.1. Front axle brake pads (models 668.3, 670.3)

Figure 7.6. Front axle brake pads (models 668.3, 670.3): 1 - Bolt; 2 - Retainer; 3 - Brake pad wear indicators; 4 - Inner brake lining; 5 - Outer brake lining; 6 - Installation device; 7 - Wedge.

Removal

1. Raise the car with a jack and remove the wheels.

2. Disconnect the wiring connector from the brake pad wear indicators 3 (figure 7.6).

3. Remove retainer 2 and inner shoe 4.

4. Remove the outer gasket 5.

5. Wipe the brake mechanism components, check for wear and damage.

Installation

6. Installation is carried out in the reverse order of removal.

Brake disc thickness: 30 mm.
Allowable thickness: 26 mm.
Lateral runout: 0.15 mm.
Axial runout: 0.02 mm.
Permissible brake lining wear: models 667,668, 670 with disc brakes 2 mm;
Models 670.4 with drum brakes 3.5 mm.

3.2. Rear axle brake pads (models 668.3, 670.3)

Fig. 7.7. Rear axle brake pads (models 668.3, 670.3): 1 - Bolt; 2 - Retainer; 3 - Brake pad wear indicators; 4 - Inner brake lining; 5 - Outer brake lining; 6 - Installation device; 7 - Wedge; 8 - Lower piston with secondary piston; 9 - Upper piston; 10 - Installation key.

Removal

1. Raise the car with a jack and remove the wheels.

2. Loosen the parking brake system actuators.

[Information copied from the website: mercedesman.ru]

3. Disconnect the wiring connector from the brake pad wear indicators 3 (figure 7.7).

4. Remove retainer 2 and inner shoe 4.

5. Fix the lower piston 8 with a wedge and press on the upper piston 9 with the installation device 6.

6. Remove the outer gasket 5.

7. Fix the upper piston 9 with a wedge and turn back the adjustment mechanism in the lower piston 8.

8. Wipe the brake mechanism components, check for wear and damage.