BMW 3 (E46). Manual — part 104

Remove driveshaft. See

260

Driveshaft

.

Remove transmission mount bolts
(A).

Remove transmission
crossmember bolts (B) and tilt
down rear of transmission.

On all wheel drive cars:

Remove front and rear driveshafts.
See

260 Driveshaft

Remove transfer case
crossmember bolts (arrows) and
remove transfer case. See

270

Transfer Case

.

CAUTION!

Tilting the engine to lower the
transmission can lead to damage to
various components due to lack of
clearance.

Working at rear of selector shaft, pry
snap ring (A) out of groove with a small
screwdriver. Push snap ring towards
gear selector rod joint and drive out pin
(B).

Carefully pry out selector shaft oil seal
with a narrow seal remover or small
screwdriver.

Coat new selector shaft seal with
transmission fluid. Drive new seal in
flush with housing. Use BMW special
seal installation tool 23 1 140 or
equivalent and a soft-faced (plastic)
hammer.

-

Installation is reverse of removal,
noting the following;

Install driveshaft using new lock
nuts.

Check transmission oil level,
topping up as necessary.

Tightening torques

Center bearing
(driveshaft) to body

21 Nm (15 ft-lb)

Clamping sleeve
(driveshaft)

10 Nm (89 in-lb)

Driveshaft to final drive flange

With U-joint (M10
ribbed nut)

80 Nm (59 ft-lb)

With U-joint (M10
compressed nut)

64 Nm (47 ft-lb)

Flex-disc to driveshaft or transmission
flange

M10 (8.8 grade)

48 Nm (35 ft-lb)

Tightening torques

M10 (10.9 grade)

60 Nm (44 ft-lb)

M12 (10.9 grade)

100 Nm (74

ft-lb)

Transmission /
transfer case
crossmember to
chassis (M8)

21 Nm (15 ft-lb)

Transfer case to
transmission (M10)

41 Nm (30 ft-lb)

Output shaft seal, replacing
(transmission installed)

-

Raise and safely support vehicle.

-

Support transmission with
transmission jack.

On rear wheel drive cars:

Remove driveshaft. See

260

Driveshaft

.

Remove transmission mount bolts
(A).

Remove transmission
crossmember bolts (B) and tilt
down rear of transmission.

On all wheel drive cars:

Remove front and rear driveshafts.
See

260 Driveshaft

Remove transfer case
crossmember bolts (arrows) and
remove transfer case. See

270

Transfer Case

.

CAUTION!

Tilting the engine to lower the
transmission can lead to damage to
various components due to lack of
clearance.

-

Bend back and remove
transmission output collar nut
lockplate.

Remove collar nut with 30 mm
thin-walled deep socket. Counterhold
output flange to prevent it from turning.

-

Remove output flange. If
necessary, use a puller.

Use a seal puller to remove seal from
transmission housing

Coat new seal with transmission fluid
and drive into position until it is flush
with housing. Use seal driver (BMW
special tool 23 2 300) or equivalent.

-

Reinstall output flange (and
shims, if applicable) to output
shaft.

Note: