Transmission Jumps Out Of 1ST Gear: Remedy

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

NOTE: Replace sliding sleeve for 1st gear.

For this purpose:

Remove transmission. See REMOVAL & INSTALLATION article.
Disassemble/assemble transmission housing. See OVERHAUL article.
Disassemble/assemble main shaft. See OVERHAUL article.
Remove/install/replace sliding sleeve for 1st gear.
NOTE: Use modified shift sleeve according to parts ordering notes. See Fig 1 .
Assemble in the reverse order.

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

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.