Removing and installing control modules in module box/control module box - ra54001402300x(2300)

A. Removing and installing Model 140

Operation no. of operation texts and work units or standard texts and flat rates:

Removing and installing

Fig 1: Identifying Module Box, Lid, Gasket And Screws

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Quiescent current retention unit	disconnect, connect.
Ground cable at battery	disconnect, connect.
Screws (1)	unscrew, screw in.
Lid (2) of module box (F23)	lift off, fit on.
Gasket (3)	examine for signs of damage; ensure gasket (3) is correctly seated when installing.
Control modules	remove using special tool 140 589 01 33 00. Install by hand; press in using special tool 140 589 01 33 00 if necessary; pay attention to color marking of control modules and connector bays; see B.

NOTE: All the control modules and connectors in the module box are equipped with a protective element to prevent incorrect connection. In addition color markings (arrow) are affixed to the control modules which are identical with the colors of the connector housings. A number of control modules have two multipoint connector strips, in which case the connector for the second strip has a darker color like the marking on the control module.

Fig 2: Locating Color Markings

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Module box/control module box pin

see Electric Wiring Diagram Manual, Model

assignment

140.

COMMERCIALLY AVAILABLE TESTER

Quiescent current retention unit

e.g. Hans Zeheter CMP 12.2

Special tool

Fig 3: Identifying Special Tool (140 589 01 33 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.