Transmission Jumps Out Of 1ST Gear: Remedy

NOTE: If short addendum gears on 1st gear are damaged, also replace idler gear for 1st gear.

NOTE: Replace sliding sleeve for 1st gear.

For this purpose:

1 - Remove/Install Transmission, for Model 170, see REMOVE/INSTALL TRANSMISSION .
2 - Disassemble/assemble transmission housing. See DISASSEMBLE/ASSEMBLE TRANSMISSION HOUSING .
3 - Disassemble/assemble main shaft. See DISASSEMBLE/ASSEMBLE MAIN SHAFT .
4 - Remove/install/replace sliding sleeve for 1st gear.
NOTE: Use modified shift sleeve according to parts ordering notes. See Fig 1.
5 - Assemble in the reverse order.

Fig 1: Parts Ordering Notes (Transmission Jumps Out Of Gear)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.