Remove/Install Rear-Axle Brake Caliper - AR42.10-P-0080W
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MODEL 166, 172, 292
MODIFICATION NOTES
| 13.04.2016 | Operation steps added. | Operation steps 30, 31 and 33. |
Shown on model 172.457
Shown on model 172.457
| Risk of injury . Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| Risk of poisoning from swallowing brake fluid. Risk of injury from skin and eye contact with brake fluid | Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | AS42.50-Z-0001-01A | |
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| Notes on self-locking nuts and bolts | AH00.00-N-0001-01A | ||
| Brake fluid notes | AH42.50-P-0001-01A | ||
| Notes on repairs to brake system | AH42.00-P-0003-01A | ||
| Notes on installing brake wear indicator contact sensors | AH42.10-P-0003-01CW | ||
| Remove/install | |||
| 1 | Move brake pads (10) of the rear axle into assembly position | Do not depress the service brake during Move to assembly position. Otherwise, the spindle in the brake caliper (3) can be damaged. |
AR42.10-P-1700-02W |
| 2 | Switch off ignition and keep transmitter key at a location beyond transmitter range (at least 2 m) | ||
| 3 | Remove cover over left suspension strut tower | Model 166, 292 | |
| Clean | |||
| 4 | Clean the area around the cap of the brake fluid reservoir | ||
| 5 | Unscrew cap of brake fluid reservoir and extract some brake fluid | ||
| 6 | Detach rear complete wheels | ||
| Model 166 | AP40.10-P-4050EW | ||
| Model 172 | AP40.10-P-4050V | ||
| Model 292 | AR40.10-P-1100GQC | ||
| 7 | Detach rear right brake wear sensor (18) from electrical connector (19) | ||
| 8 | Unscrew bolt (4) | When removing brake caliper (3) on right side of vehicle. |
*BA42.10-P-1007-12L |
| *BA42.10-P-1003-12J | |||
| 9 | Remove electrical connector (19) | When removing brake caliper (3) on right side of vehicle. | |
| 10 | Unclip electrical line (7) from retaining frame (8) | Model 172 When replacing brake caliper (3) on right side of vehicle. |
|
| 11 | Disconnect electrical connector (14) from electric parking brake actuator motor (16) | ||
| 12 | Remove bolts (1) from guide pin (5) | *BA42.10-P-1004-12L | |
| *BA42.10-P-1004-12J | |||
| 13 | Detach brake hose (6) from brake caliper (3) | When replacing brake caliper (3). Model 166, 292 |
AR42.10-P-0013GZ |
| Model 172 | AR42.10-P-0013V | ||
| 14 | Seal the connections immediately using suitable stop plugs | When replacing brake caliper (3). The brake caliper (3) must not run empty. Otherwise the brake caliper (3) must be replaced. |
Figure |
| 15 | Remove brake caliper (3) from brake caliper support (2) | ||
| 16 | Attach brake caliper (3) to the vehicle free of tension to relieve the brake hose (6) and the electrical line (7) | When reusing the brake caliper (3). Do not stretch or kink the brake hose (6). Otherwise, the brake hose (6) and the electrical line (7) can be damaged. |
|
| 17 | Press back brake piston using pusher tool (01) | When reusing the brake caliper (3). If brake piston is sluggish ↓ Replace brake caliper (3). |
Fig 2 |
| 18 | Detach electric parking brake actuator motor (16) from brake caliper (3) | When replacing brake caliper (3). | AR42.20-P-0600W |
| 19 | Remove brake pads (10) from brake caliper support (2) | When removing the brake caliper support (2). |
|
| 20 | Pull right rear brake wear sensor (18) out of brake lining (10) | When replacing the brake pads (10). | |
| 21 | Remove spring plates (11) from brake caliper support (2) | When replacing the brake caliper support (2). | |
| 22 | Remove screws/bolts (15) | When removing the brake caliper support (2). |
*BA42.10-P-1005-12L |
| *BA42.10-P-1001-12J | |||
| Measure | |||
| 23 | Check brake linings (10) for wear and that they are in good condition | ||
| Model 172 | AP42.10-P-4252SLB | ||
| Model 166 | AP42.10-P-4252GB | ||
| Model 292 | AP42.10-P-4252B | ||
| If there are problems ↓ Replace set of brake linings (10). |
AR42.10-P-1700W | ||
| 24 | Check brake disk (9) for wear and that it is in good condition | ||
| Model 166 | AP42.10-P-4258GQ | ||
| Model 172 | AP42.10-P-4258V | ||
| Model 292 If there are problems ↓ Replace sets of brake disks (9). |
AR42.10-P-0120A | ||
| Model 166, 292 | AR42.10-P-0220GZ | ||
| Model 172 (except 172.466/475) | AR42.10-P-0220W | ||
| Model 172.466/475 | AR42.10-P-0220MMI | ||
| Check | |||
| 25 | Check brake caliper (3) and dust boot (13) on brake piston for damage | If there are problems ↓ Replace corresponding component. |
|
| 26 | Check boots (12) for damage and correct seat | If there are problems ↓ Replace boots (12). |
|
| 27 | Check guide pin (5) for ease of movement | If there are problems ↓ Repair guide pin (5) and guide, replace, if necessary. |
|
| Clean | |||
| 28 | Clean contact surfaces of brake linings (10) on brake caliper (3) and on brake caliper support (2) | While doing so do not damage the dust boot (13) on the brake piston or the boots (12). Do not use sharp-edged or pointed objects. Otherwise the brake caliper (3) or the brake caliper support (2) must be replaced. |
|
| 29 | Install in the reverse order | ||
| Initial startup | |||
| 30 | Bleed brake system | When replacing brake caliper (3). | AR42.10-P-0010CW |
| 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 the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system. | AS42.50-Z-0002-01A | |
| 31 | Operate brake pedal several times until brake pads (3) make contact with brake disks (9) | ||
| Check | |||
| 32 | Check fluid level in brake fluid reservoir, and correct if necessary | ||
| Model 166, 292 | AP42.10-P-4210GZ | ||
| Model 172 | AP42.10-P-4210V | ||
| 33 | Carry out brake test on the test stand | ||
| AP42.00-P-4290BA |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 172 | |
|---|---|---|---|
| BA42.10-P-1001-12J | Bolt, brake caliper/brake caliper support to wheel carrier | Nm | 110 |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 172 | |
|---|---|---|---|
| BA42.10-P-1003-12J | Screw/bolt, brake wear sensor to brake caliper | Nm | 8 |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 172 | |
|---|---|---|---|
| BA42.10-P-1004-12J | Guide pin to brake caliper support or bolt for guide pin to brake caliper | Nm | 28 |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 166 | Model 292 | |
|---|---|---|---|---|
| BA42.10-P-1004-12L | Screw/bolt, brake caliper to guide pin | Nm | 35 | 35 |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 166 | Model 292 | ||
|---|---|---|---|---|---|
| BA42.10-P-1005-12L | Bolt, brake caliper support to wheel carrier | Stage 1 | Nm | 60 | 60 |
| Stage 2 | ∠° | 45 | 45 | ||
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 166 | Model 292 | ||
|---|---|---|---|---|---|
| BA42.10-P-1007-12L | Screw/bolt, feed line for brake pad contact sensor to brake caliper | Nm | 8 | 8 | |