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CAUTION
Use only the approved Mobiltrans SHC
®
DC fluid.
Do not mix fluid types. Adding SHC 50 RN 2952
E-5 fluid (used in Eaton and Meritor transmis-
sions) could damage the radial seals.
2. Clean the fill plug before installing it.
3. 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).
26–06 Mercedes-Benz
Transmission Leak
Checking
1. Park the vehicle on a level surface. Apply the
parking brakes and chock the rear tires.
2. Check for signs of leakage at the breather. See
Fig. 12.
2.1 If leakage is found, check the breather for
a missing cap. Replace the cap if neces-
sary.
2.2 Check the fluid level at the fill plug. If the
level is too high, correct the fluid level.
3. Check for signs of leakage at the cap seal on the
shift lever. If the cap seal is damaged, replace it.
4. Check for signs of leakage at the radial seal on
the output shaft. If leakage is found, remove the
output yoke (end yoke) and replace the seal. For
procedures, see Section 26.02, Subject 120, of
the
Acterra
®
Workshop Manual
.
NOTE: There are two cover plates on the coun-
tershaft, one at the front and one at the rear.
5. Check for signs of leakage at the rear cover
plate on the countershaft (next to the output
yoke). If leakage is found, check the torque on
the cover-plate bolts and check the flat seal for
damage.
5.1 If the flat seal is damaged, replace it.
5.2 If the cover-plate bolts are too loose,
tighten them 18 lbf·ft (25 N·m). If the
cover-plate bolts are too tight, replace the
flat seal and tighten to 18 lbf·ft (25 N·m).
6. Check for signs of leakage at the transmission
fluid fill plug. If leakage is found, check the
torque on the plug and check the aluminum gas-
ket for damage.
6.1 If the gasket is damaged, replace it.
6.2 If the fill plug is too loose, tighten it 42
lbf·ft (57 N·m). If the fill plug is too tight,
loosen it and tighten to 42 lbf·ft (57 N·m).
7. Check for signs of leakage at the transmission
fluid drain plug. If leakage is found, check the
torque on the plug and check the aluminum gas-
ket for damage.
7.1 If the gasket is damaged, replace it.
7.2 If the drain plug is too loose, tighten it 42
lbf·ft (57 N·m). If the plug is too tight,
loosen it and tighten to 42 lbf·ft (57 N·m).
8. Check for fluid dripping at the gear case seals. If
substantial leakage is found at either location,
replace the transmission.
NOTE: Weeping or sweating seals are not
cause for transmission replacement.
05/22/2001
f261101
1
2
3
4
5
6
7
8
9
NOTE: The transmission is shown from the left-hand
side.
1. Shift Lever Cap Seal
2. Breather
3. Output Shaft Radial Seal
4. Countershaft Cover Plate
5. Transmission Fluid Fill Plug
6. Transmission Fluid Drain Plug
7. Gear Case Seals
8. Clutch Slave Cylinder
9. Input Shaft Radial Seal
Fig. 12, MBT Leak Check
Transmission26
Acterra Maintenance Manual, March 200526/12