P42.10-2548-07
Front axle |
1 | Spring steel sheet | 3 | Brake shoe | 5 | Pusher tool | ||
2 | Floating caliper | 4 | Protective cap |
P42.10-2452-07
Rear axle |
1 | Spring steel sheet | 3 | Brake shoe | 5 | Pusher tool | ||
2 | Floating caliper | 4 | Protective cap |
| Remove/install | ||
Caution | 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. | |
Warning | 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. | |
Topical note | Brake fluid notes | ||
Topical note | Notes on repairs to brake system | ||
Topical note | Notes on self-locking nuts and bolts | ||
1 | Reduce fluid level in expansion reservoir for brake fluid down to "MIN" marking | In order to prevent the expansion reservoir overflowing when pressing back the brake pistons. | |
2 | Remove wheels | ||
| Remove/install wheels, rotate if necessary | ||
3 | Disconnect electrical connection of brakepad contact sensor | ||
Notes on installing brake wear indicator contact sensors | |||
Installation: When installing brake wear indicator contact sensors | |||
4 | Pry off spring steel sheet (1) and remove | ||
5 | Take off cover (4) and remove screws of guide pin | Installation: Replace bolts. | |
Guide pin to brake caliper support | |||
Guide pin to brake caliper support | |||
6 | Remove floating brake caliper (2) with brakepads (3) | ||
Topical note | Notes on installing brake hoses | ||
| |||
7 | Remove brakepads (3) from floating brake caliper (2) | Brakepads (3) are to be disposed of as special waste. The local authorities can provide information regarding whether disposal is also permitted as industrial waste similar to domestic waste. | |
Only brakepads (3) approved by Mercedes-Benz may be installed as a set. | |||
| Check | ||
8 | Check brakepad thickness and brake disks | ||
| Check brake lining thickness | ||
| Inspect condition of brake disks | ||
Replace brakepads (3) and brake disks as set only, if necessary. | |||
9 | Remove and check brakepad contact sensor from backing plate of brakepad (3) | ||
Notes on installing brake wear indicator contact sensors | |||
Check for damage, replace contact sensor if necessary. | |||
10 | Check guide pins and boots | Check guide pins for sluggishness and damage. Check boots for damage and loose seat. Replace damaged parts with new parts. | |
11 | Check floating brake caliper (2) | If the floating brake caliper (2) is leaky or the dust boot is damaged: | |
| |||
Replace front axle brake caliper. | |||
Replace rear axle brake caliper. | |||
12 | Press back brake piston using pusher tool (5) | If the brake piston is difficult to move: | |
| |||
Replace front axle brake caliper. | |||
Replace rear axle brake caliper. | |||
Resetting device | |||
13 | Check folds of dust boot | If the dust boot projects beyond the brake piston, position the dust boot correctly. | |
| Clean | ||
14 | Clean contact surfaces of brakepads (3) on floating brake caliper (2) and floating caliper carrier with rag | Installation: | |
Assembly cleaner | |||
15 | Apply brake paste | Apply brake pad paste to brake pads | |
| |||
MB Plastilube brake paste (brownish) | |||
16 | Install in the reverse order | ||
Danger | 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. | |
17 | Depress brake pedal several times until brakepads (3) rest against brake disks | Firm resistance should be noticeable at the brake pedal. | |
18 | Check brake fluid level; correct if necessary | ||
| Brake system - inspect fluid level |
000 589 52 43 00
Resetting device