Mercedes-Benz Manual Transmissions
Notice: Operating a manual transmission with the fluid level higher or lower than recommended can result in transmission damage.
Mercedes-Benz transmissions use a simple 6-speed gear pattern as shown in Fig..
Fig. 1, Shift Pattern, M-B Transmissions
Always use first gear when starting to move the vehicle forward.
Important: Do not rest your foot on the clutch pedal while driving. This causes partial clutch disengagement which could cause premature clutch wear.
While traveling, check the tachometer regularly to be sure the engine speed is within the most economical range (1400 to 2000 rpm).
On level roads, drive in the highest usable gear, keeping engine speed down.
Notice: Do not rest your hand on the gear shift lever while driving. This can cause synchronizer damage.
When approaching an uphill grade, shift down ahead of time to prevent loss of engine rpm. When approaching a downhill grade, shift down ahead of time to prevent runaway speed. For information about shift points and "progressive shifting," see General Information.
Change gears only when absolutely necessary. Skip gears if needed.
When shifting, always press the clutch pedal all the way down. Do not force the gear lever.
Before shifting into reverse, be sure the engine is idling and the vehicle is not moving.
Notice: If the transmission locks up while driving, making further shifting impossible, continue driving in the gear already selected to reach service assistance, as circumstances allow. Or, safely park the vehicle off the roadway and contact your nearest Freightliner dealer or other qualified service provider for roadside assistance. To prevent further transmission damage, do not move the vehicle from a standing start unless this can be accomplished safely, taking into account the gear that is engaged and the load on the vehicle.