AR42.10-P-1600EM | Remove/check/install front axle brake pads | 11.3.10 |
MODEL 202.028, 210.055 with CODE (957) AMG engineering package
P42.10-0242-09
| Remove/install | ||
Danger! | 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. | |
Danger! | Risk of injury to skin and eyes caused by handling hot or glowing objects. | Wear safety gloves, protective clothing and safety glasses, if necessary. | |
| Notes on repairs to brake system | ||
| Brake fluid notes | ||
1 | Unscrew the cap on the brake fluid expansion reservoir and suction off some brake fluid | In order to prevent the expansion reservoir overflowing when the pistons (47) are pushed back. | |
2 | Remove rear wheels | ||
| Remove/install wheels, rotate if necessary | ||
3 | Remove brake pad contact sensor | Installation: Replace defective contact sensors. | |
Model 202.028 with code 957 AMG engineering package, C 36 AMG: Observe markings on additional wiring harness for front axle brake wear indicator. | |||
| Notes on installing brake pad wear sensor contact sensors | ||
4 | Drive out retaining pins (41) using punch (035) and remove retaining spring | Installation: Knock retaining pins (41) all the way in. | |
5 | Pull brake pads (43) out of the brake caliper (31) | When pressing out firmly seated brake pads (43), insert wedge between lever and brake caliper (31) to prevent damage. | |
Brake pads (43) 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. | |||
Installation: Only sets of brake pads (43) approved by Mercedes-Benz may be installed. Brake pads (43) with circumferential damping (a, c) should be installed ungreased. Apply some brake pad paste to the side surfaces (arrows) of brake pads (43) without circumferential damping (a, c). | |||
Lever | |||
Wedge | |||
Brake pad paste | |||
| Checking | ||
6 | Check brake pad thickness and brake disks | Replace brake pads (43) and brake disks in sets if necessary. | |
| Inspect condition of brake disks | ||
| Check brake lining thickness | If the brake pads (43) have worn down to beyond the wear limit, the bar between the sealing groove and dust cap may be damaged; therefore: | |
Inspect brake system for leaks with pressure tester. | |||
7 | Press back piston (47) using pusher tool (031) | Do not deform heat shield. If the brake pads (43) for several brake calipers (31) are removed, their pistons (47) must be secured beforehand using wedges against falling out. | |
Do not fit the pusher tool (031) to the brake disk, but push back opposite pistons (47) simultaneously. If pistons (47) are sluggish: | |||
Repair fixed caliper on front axle. | |||
Resetting device | |||
Wedge | |||
| Clean | ||
8 | Clean contact surfaces of brake pads (43) using brake caliper brush (030) | Do not damage boots of pistons (47). | |
Brake caliper brush | |||
9 | 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 engine, actuate brake pedal several times until the pressure is built up and maintained in the brake system. | |
10 | Operate the brake pedal several times until the brake pads (43) contact the brake disks | Firm resistance should be noticeable at the brake pedal. | |
| Checking | ||
11 | Check brake fluid level, correct if necessary | ||
| Brake system - inspect fluid level |
000 589 52 43 00
601 589 07 63 00
123 589 13 33 00
000 589 26 68 00
Pusher tool
Brake caliper brush
Lever
Wedge
Repair materials
Number | Designation | Order number |
BR00.45-Z-1003-06A | Brake pad paste replaced by: A 001 989 94 51 | A 001 989 10 51 |