Remove/install rear axle brake caliper - AR42.10-P-0080V
MODEL 171.442 /454 /456
| Remove/install | |||
|---|---|---|---|
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. | - | |
| Risk of poisoning caused by swallowing brake fluid. Risk of injury caused by brake fluid coming into contact with skin and eyes. | Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | - | |
| Brake fluid notes | AH42.50-P-0001-01A | ||
| Notes on repairs to brake system | AH42.00-P-0003-01A | ||
| 1 | Hoist vehicle with lifting platform until wheels are free | AR00.60-P-1000V | |
| 2 | Remove rear wheels. | ||
| Remove/install wheels, rotate if necessary | AP40.10-P-4050V | ||
| 3 | Remove brake pads on rear axle | AR42.10-P-1700V | |
| 4.1 | Unscrew bolt (1) and remove right rear brake pad contact sensor connector (X88/15) from brake caliper (31) | Model 171.456 | |
| *BA42.10-P-1003-12P | |||
| 5 | Remove brake hose (51) | AR42.10-P-0013V | |
| Figure | |||
| 6 | Unscrew bolts (31s) and remove brake caliper (31) | *BA42.10-P-1001-12P | |
| 7 | Install in the reverse order | ||
| 8 | Bleed brake system | AR42.10-P-0010V | |
| Risk of accident when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work | Before starting engine, actuate brake pedal several times until the pressure is built up and maintained in the brake system. | - | |
| 9 | Operate the brake pedal several times until brake pads make contact with the brake disks (61) | ||
| 10 | Check brake system for leaks | - | |
| Checking | |||
| 11 | Inspect fluid level in expansion reservoir, adjust to correct level if necessary | *BF42.10-P-1001-01A | |
| Brake system - inspect fluid level | AP42.10-P-4210V | ||
| Risk of death caused by body parts being pulled in by rotating vehicle wheels and roller dynamometer rollers | Do not insert your hand into rotating parts. Wear closed and snug-fitting work clothes. Safeguard areas with rotating vehicle parts and dynamometer rollers against unauthorized access. Safeguard roller dynamometer from unauthorized access. |
- | |
| 12 | Carry out brake test on the test stand | ||
| Brake testing on test stand | AP42.00-P-4290V |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 171 except 171.473 | Model 171.473 | |
|---|---|---|---|---|
| BA42.10-P-1001-12P | Self-locking bolt, brake caliper to wheel carrier | Nm | 55 | 85 |
| BA42.10-P-1003-12P | Bolt, brake pad contact sensor to brake caliper | Nm | 7 | 7 |
BRAKE FLUID
| Number | Designation | Model 171 | ||
|---|---|---|---|---|
| BF42.10-P-1001-01A | Brake fluid | Filling capacity | Liters | ≈ 0.45 to 0.6 |
| Specifications for Operating Fluids | Sheet | BB00.40-P-0330-01A | ||
| Sheet | BB00.40-P-0331-00A | |||