BMW 5251 Service Manual page 575

230-1 1
Manual ~ransmissionl
Coat new seal with transmission fluid. Use seal installation
drift (see table below) to drive seal into position until it is flush
with housing.
Output seal drives
Transmission
BMW
special tool
Getrag S5D 250G 240110
ZF
S5D 3202 23 2 300
inspect sealing surface on output flange. Replace if flange
surface is worn or damaged.
Heat output flange to about 176" F (80" C) to aid in installa-
tion. This can be done by placing flange in hot water. Rein-
stall output flange to output shaft.
-
Coat flange nut with LoctiteB243 and reinstall. Torque in two
stages.
Tightening torques
Output flange to output shaft
Stage
I
190 Nm (140 ft-lb)
Stage II (after loosening)
120 Nm (89 ft-lb)
-
Remainder of installation is reverse of removal, noting the fol-
lowing:
Install driveshaft using new nuts. See 260 Driveshaft.
Check transmission fluid level, topping up as necessary
Tightening torques
Aluminum driveshaft to flex-disc
-
MI2 (use Dacromet-coated washers)
90
Nm (66 ft-lb)
Driveshaft
CV
joint to final drive flange
.
MI0 (Torx bolt)
70 Nm (51 ft-lb)
.
M8 (compression nut) 32 Nm (24 ft-lb)
Flex-disc to transmission flange or driveshaft
-
MI0 (8.8 grade) 48 Nm (35 ft-lb)
-
MI0 (10.9 grade)
60 Nm (44 It-lb)
.
MI2 (8.8 grade) 81 Nm (60 ft-lb)
.
MI2 (10.9 grade) I00 Nm (74 It-lb)
M14 140 Nm (103 It-lb)
Transmission crossmember
-
to transmission (ME)
21 Nm (15 It-lb)
-
to chassis (M10)
42 Nm (30 It-lb)