Removal and installation fuse and relay mounting blocks (Mercedes-Benz G-Class W463)

Note: The procedures for removing and installing mounting blocks combined with SAM modules are described in Section Removal and installation control modules.

Main fuse box (on the left under the dashboard)

1. On models with the corresponding configuration (code ET2), activate the service mode of the TELE AID emergency call system (see Section Activation/deactivation of the service mode of the TELE AID emergency call system).



2. Disconnect the negative cable from the battery.

3. Remove the left side cover (1) from the instrument panel.

4. Release the fastening latches of the fuse holder (4) in the mounting block (F34) - do not forget to mark the installation position of the components in advance.

5. Remove the remaining fuses from the fuse box (F34).

6. Carefully release the clamps and remove the receiving sockets (5) from the mounting block (F34).

Explanations on disconnecting from the wiring blocks are given in Section Disconnecting and connecting electrical wiring of mounting blocks and control modules.

7. Unscrew the bolts (2) securing the mounting block (F34).

8. Loosen the lock nut (6) on the rear side of the block (F34) and disconnect the circuit wiring from the latter (30) - the lock nut should be replaced during installation.

9. Remove the mounting block (F34).

10. Unscrew the bolts (3) and remove the mounting block (F2) for 8 fuses.

11. Installation is carried out in the reverse order - if the corresponding configuration (code ET2) deactivate the service mode of the TELE AID system (see Section Activation/deactivation of the service mode of the TELE AID emergency call system).

12. Finally, read the DTC codes and clear the on-board diagnostic system memory using the STAR DIAGNOSIS scanner (6511 1801 00) (See Chapter Engine electrical systems).

Mounting block installed in the right front footwell

1. Loosen the fastening screws (1) and, pulling in the direction indicated by the arrow, remove the cover (2) on the left under the instrument panel.





2. Loosen the screws (3) and, pulling in the direction indicated by the arrows, remove the cover (4).



3. Loosen the screws (6), release the mounting block (5) from its seat and lower it down to provide access to the fuses.

Mounting block installed in the rear of the center console

1. On long wheelbase station wagon models, use a screwdriver to pry off the retaining clips located at the front of the right front seat rail.

Note: When installing, the brackets must be seated strictly in a specific position at a distance (2) from the edge of the runner.

2. Move the right seat forward as far as it will go.

3. Loosen the mounting screws (1) and, pulling in the direction indicated by the arrow, remove the cover (2) from the rear on the right wall of the console assembly.

Mounting block that fits in the battery box

The mounting block is located under the cover in the rear footwell. The fuses included in the block usually do not need to be replaced, and if they fail, you should contact the specialists of the Mercedes-Benz branded service station for help.

Relay holder in the luggage compartment

1. Turn on the auxiliary battery and connect it to the standard battery, then disconnect the negative cable from the latter.



2. On models with the corresponding configuration, remove the CD changer (code EP5)/TV tuner (code EM9) (see Section Removal and installation CD changer/TV tuner).

3. Remove the single lock relay (K44) and rear window wiper relay (K68) from the receiving sockets (1).

4. Loosen the fasteners (3 and 4) and remove the relay holder (2).

5. Installation is carried out in reverse order.

6. Finally, read the DTC codes and clear the on-board diagnostic system memory using the STAR DIAGNOSIS scanner (6511 1801 00) (See Chapter Engine electrical systems).