Examination
To check the starter with a fully charged battery, connect terminals "30" (big terminal) and "50" (small wire next to large terminal) wire with a cross-section of at least 4.0 mm sq. During normal starter operation, it is necessary to check the connecting wires. If the starter pinion does not engage with the flywheel ring gear, it is necessary to remove the starter and check.
The most complete check of the starter can be performed in specialized workshops, where the necessary characteristics of the starter will be taken and the torque values will be determined.
Removal and installation the starter
Disconnect the ground cable from the battery.
Disconnect the battery wire from terminal 30 and the wire from terminal 50 of the pull-in winding.
Unscrew the nut and two mounting bolts and remove the support support.
Loosen the bolts securing the starter to the gearbox and lower the starter down.
Installation is carried out in the reverse order. Pay special attention to the fastening of the wires.
[Material based on data from the portal: Mercedesman.ru]