Remove/install electronic stability program (ESP) control unit - AR42.45-P-0820RK
MODEL 231
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| Remove/install | |||
| 1 | Switch off ignition and remove transmitter key (A8/1) or KEYLESS-GO start/stop button (S2/3) from electronic ignition lock control unit (N73) | ||
| 2 | Open engine hood | ||
| 3 | Remove engine air intake duct (6) | ||
| 4 | Unhook line (5) | ||
| Clean | |||
| 5 | Clean the surrounding area of the electrical connection (3) and the Electronic Stability Program control unit (N30/4) | Before opening the brake system the area around the separation point should be cleaned thoroughly. Only use clean, lint free rags and cleaner free of mineral oil. Do not use any compressed-air for cleaning when the brake system is open. Otherwise even the smallest particles of dirt, introduced into the hydraulic components, can lead to malfunctions and a total failure of the brake system. Assembly cleaner |
*BR00.45-Z-1028-04A |
| 6 | Detach electrical connection (3) from Electronic Stability Program control unit (N30/4) | Model 231 except code 233 (DISTRONIC PLUS) |
AR42.45-P-0820-02EW |
| Model 231 with code 233 (DISTRONIC PLUS) The work instructions for disconnecting the electrical connector (3) must be followed. Otherwise damage can be caused to the locking mechanism. Do not touch, deform or damage contacts of electrical connection (3) and of jack on Electronic Stability Program control unit (N30/4). Do not allow any foreign objects, dirt or fluids to enter the jack or the electrical connection (3). Otherwise the Electronic Stability Program control unit (N30/4) may be damaged or may malfunction. |
AR42.45-P-0820-02EWD | ||
| 7 | Remove screws/bolts (4) | *BA42.45-P-1002-01M | |
| 8 | Detach Electronic Stability Program control unit (N30/4) from traction system hydraulic unit (A7/3) and remove | Otherwise, the Electronic Stability Program control unit (N30/4) could get damaged. |
|
| 9 | Remove O-rings (1) of valve dome (2) by hand | Do not use a tool to remove the O-rings (1). Otherwise the traction system hydraulic unit (A7/3) may be damaged. |
|
| Clean | |||
| 10 | Clean sealing surface on traction system hydraulic unit (A7/3) | Assembly cleaner | *BR00.45-Z-1028-04A |
| 11 | Install in the reverse order | ||
| 12 |
Perform calibration of Electronic Stability Program control unit (N30/4) with STAR DIAGNOSIS Connect STAR DIAGNOSIS and read out fault memory |
When replacing the Electronic Stability Program control unit (N30/4). | AD00.00-P-2000-04A |
ELECTRONIC STABILITY PROGRAM (ESP®)
| Number | Designation | Model 231 | |
|---|---|---|---|
| BA42.45-P-1002-01M | Screw/bolt, ESP® control unit to traction system hydraulic unit | Nm | 3 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1028-04A | Assembly cleaner | Adolf Wurth GmbH & Co. KG |