Contents: Removal ↡ Installation ↡
The condition of the carbon brushes should be checked every 60,000 km.
Removal
Removing brushes without removing the alternator.
Disconnect the battery ground wire.
Unscrew the regulator on the rear wall of the generator and carefully remove it.
Replace the carbon brushes if their length is less than 5 mm by unsoldering them from the connecting wires.
(Article borrowed from the web portal Mercedesman.ru)
Installation
Install new carbon brushes (A), springs (B) into the brush holder (C) and solder the connections.
To prevent solder from sticking out above the wire, hold the connector wire with straight pliers.
Caution: Protruding solder will increase the stiffness of the stranded wire, thus making the carbon brush unsuitable for use.
The insulating tube above the stranded wire must be clamped together with the existing eyelet outside the soldering area.
Check the ease of movement of the new carbon brushes in the holders after their installation. Install the regulator and tighten the screws.
Connect the battery ground wire.