Filling
Notice: Operating a manual transmission with the fluid level higher or lower than recommended can result in transmission damage. Do not overfill the transmission; overfilling will force fluid out of the case through the main shaft openings. Fluid overflow may also drain onto the clutch or clutch brake, causing additional problems.
- Add transmission fluid until it is level with the lower
edge of the fill opening. See Fig. for
the correct level. See Table. for
approved transmission lubricants and see Table. for
lubricant capacities.
-
Full
-
Low
Fig. 1, Mercedes-Benz Transmission Fluid Level Checking
Table 1, Mercedes-Benz Transmission Lubricant Type
Mercedes-Benz Transmission Lubricant Type
Lubricant Type
Temperature: °F (°C)
SAE Viscosity
Synthetic transmission lubricant meeting Eaton PS-386 lubricant specification
All
—
Table 1, Mercedes-Benz Transmission Lubricant Type
Table 2, Mercedes-Benz Transmission Lubricant Capacities
Mercedes-Benz Transmission Lubricant Capacities
Transmission Model
Refill Capacity:qt (L)1
MBT660S-6O
9.5 (9.0)
MBT520S-6D
9.5 (9.0)
- Quantities listed are approximate. Fill the transmission until the lubricant is level with the bottom of the fill hole, with the vehicle in normal operating position.
Table 2, Mercedes-Benz Transmission Lubricant Capacities
-
- Clean the fill plug before installing it.
- Install the fill plug (p/n N000908 020001) and a new aluminum gasket (p/n N 00763 024105). Tighten the fill plug 42 lbf·ft (57 N·m).
Notice: Use only approved synthetic transmission lubricant that meets the requirements of the Eaton PS-386 lubricant specification. Do not mix fluid types. Adding lubricants that are not approved for use in the transmission could damage the radial seals.