P42.25-2000-07
Shown on Electronic Stability Program (ESP) hydraulic unit which has been removed
1 Inlet air pipe
2 Union nut of pressure circuit brake line
3 Union nut of secondary brake circuit brake line
4 Union nuts of brake lines
5 Bolts
| 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. | Pour brake fluid only into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | |
| Brake fluid notes | All models | |
| Notes on repairs to brake system | All models | |
1 | Switch off ignition and remove the transmitter key from the EIS [EZS] control unit | On vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until ignition is switched off. Remove transmitter key from vehicle and store it in a location beyond its transmission range (at least 2 m). | |
2 | Open engine hood and raise to vertical position | ||
3 | Detach inlet air pipe (1) | ||
4 | Remove electronic stability program control unit (ESP) | Do not disconnect electrically Place the Electronic Stability Program (ESP) control unit out of the working area. | |
5 | Electronic Stability Program (ESP) hydraulic unit in the area of the line connections | Clean the area around the separation point thoroughly before opening the brake system. Even the smallest dirt particles, introduced into the hydraulic components, can lead to malfunctions and a total failure of the hydraulic system | |
6 | Unscrew the union nut for the pressure circuit brake line (2) and union nut for the secondary brake circuit brake line (3) and union nuts for the brake lines (4) of the Electronic Stability Program (ESP) hydraulic unit | Before detaching identify the brake lines to the corresponding line connection, in the process observe the markings on the Electronic Stability Program (ESP) hydraulic unit. Trace line routing to the corresponding wheel. | |
Collect any brake fluid which runs out in a fluff-free, absorbent cloth. Seal brake lines and line connections on the ESP hydraulic unit immediately with plugs, in order to prevent the ingress of foreign bodies. | |||
Installation: Do not mix up brake lines, observe markings. | |||
| |||
Ring wrench socket | |||
Ring wrench socket | |||
Set of plugs | |||
7 | Loosen screws (5). | Flush off brake fluid which runs out in the area of the longitudinal frame member with water in order to avoid paint damage. | |
| |||
8 | Remove Electronic Stability Program (ESP) hydraulic unit upwards | ||
9 | Install in the reverse order | ||
10 | Bleed brake system | ||
Danger! | Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near engine | Secure vehicle to prevent it from moving. | |
11 | Check brake system for leaks |
Electronic stability program (ESP)
Number | Designation | Type 251 | ||
BA42.45-P-1002-01K | Union nut, brake line to ESP hydraulic unit | Nm | 18 | |
BA42.45-P-1003-01K | Bolt, ESP hydraulic unit to bracket | Nm | 10 | |
140 589 00 03 00
Set of plugs
Ring wrench socket
Ring wrench socket
000 589 75 03 00
129 589 00 91 00
Referenced documents
- ah4200p000301a Notes on repairs to brake system
- ah4250p000101a Brake fluid notes
- ar4210p0010rt Bleed brake system
- ar4210p010001rt Check brake system for leaks
- ar4245p0820rt Remove/install electronic stability program (ESP) control unit
- ar8840p1000rt Opening engine hood, moving to upright position and closing
- as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.
- as4250z000101a Risk of poisoning from swallowing brake fluid. Risk of injury from skin and eye contact with brake fluid