AR42.45-P-0817RR | Remove/install Electronic Stability Program (ESP) hydraulic unit | 10.10.03 |
MODELS 452.3## /4## 1#
P42.45-2548-04
1 Locking lever
2 Connector
N47-5 ESP control unit
P42.45-2549-06
3 Brake line
3.1 Brake line
4 Front brake line
4.1 Front brake line
5 Rear brake line
5.1 Rear brake line
6 ESP hydraulic unit
7 Nuts
8 Frame
9 Bracket
B34/2 ESP brake pressure sensor
Modification notes
6.6.05 | It is not necessary to change all brake lines each time they are disconnected; observe color coding | Stage 5 |
| Remove/install | ||
Danger! | Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer. | |
1 | Raise vehicle with lifting platform | When positioning lifting platform observe recesses in covers. | |
2 | Remove underbody | ||
3 | Open front hood | ||
4 | Remove luggage compartment tray | ||
| Check | ||
5 | Check color codings of brake lines | See: | |
Mark brake lines | |||
"Yellow" locking paint | |||
"Red" safety paint | |||
6 | Undo locking lever (1) and disconnect connector (2) from ESP control unit (N47-5) | ||
7 | Disconnect plug from ESP brake pressure sensor (B34/2) and unscrew ESP brake pressure sensor (B34/2) | | |
8 | Unscrew threaded connection of brake line (3, 3.1), front brake line (4, 4.1) and rear brake line (5, 5.1) at ESP hydraulic unit (6) | Installation: Do not damage the threads when positioning the threaded connections as the resulting chippings could cause the entire brake system to fail. | |
Installation: Make sure that the brake lines are not bent, are routed correctly, do not leak and do not rest against the body. | |||
| |||
Ring wrench socket | |||
9.1 | Fit new brake line | Only if one of the brake lines with red color coding has been unscrewed from its threaded connection. See: | |
Mark brake lines | |||
"Yellow" locking paint | |||
"Red" safety paint | |||
10 | Unscrew nuts (7) and remove bracket (9) with ESP hydraulic unit (6) | | |
11 | Remove frame (8) from bracket (9) and remove ESP hydraulic unit (6) | When doing so, take care not to damage the locking device (arrow). | |
12 | Install in the reverse order | ||
13 | Bleed brake system | ||
14 | Carry out transposition check | ||
| Connect STAR DIAGNOSIS and read out fault memory | ||
STAR DIAGNOSIS diagnosis system | |||
15 | Check brake system for leaks |
Electronic stability program (ESP)
Number | Designation | Models | ||
BA42.45-P-1004-01F | Brake pressure sensor to ESP module | Nm | 18 | |
BA42.45-P-1005-01F | Brake line to ESP hydraulic unit | Nm | 14 | |
BA42.45-P-1007-01F | Nut, intermediate bracket to front axle carrier | Nm | 20 | |
Ring wrench socket
450 589 09 99 04
Commercially available tools
Number | Designation | |
WH58.30-Z-1048-13A | STAR DIAGNOSIS diagnosis system, Compact Passenger Car | 6511 1801 00 |
Repair materials
Number | Designation | Order number |
BR00.45-Z-1028-07A | "Red" safety paint | Lackfabrik Bäder GmbH & Co. KG |
BR00.45-Z-1027-07A | "Yellow" locking paint | Lackfabrik Bäder GmbH & Co. KG |
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