BMW 3 (E46). Manual — part 169
side.
Make matching marks on differential
input shaft, collar nut and driveshaft
flange.
-
Pry lock plate from nut.
Counterhold input flange with
BMW special tool 23 0 020 or
equivalent and remove collar nut.
-
If necessary, use puller to remove
input flange.
Note:
Be prepared to catch dripping oil in a
pan.
-
Pry old oil seal from its recess
using BMW special tool 00 5 010
or equivalent seal puller.
CAUTION!
Be careful not to mar the differential
housing when removing the seal.
-
Dip new seal in differential
lubricant and drive it into position.
-
Lightly lubricate input shaft and
press input flange back on. Install
collar nut and slowly tighten until
matching marks line up.
-
Install a new lock plate and refill
differential with lubricant.
CAUTION!
If the flange collar nut is tightened
past the marks, interior components
of the differential will be damaged.
Differential oil
Differential oil capacity
Rear wheel drive
0.9 liter (0.95 US
qt)
All wheel drive
1.0 liter (1.06 US
qt.)
Oil specification
BMW SAF-XO
synthetic oil
-
Remainder of assembly is reverse
of disassembly.
Tightening torques
Driveshaft to differential flange
M10 compression
nut
64 Nm (47 ft-lb
M10 Torx bolt
85 Nm (63 ft-lb)
Differential drain or
fill plug
70 Nm (52 ft-lb)
340-1
General
This repair group covers brake service:
Brake pads, calipers, and disks
Master cylinder, brake booster,
and parking brake
ABS/ASC and ABS/DSC
component replacement
ABS/ASC and ABS/DSC system
descriptions are covered in
300
Suspension, Steering and Brakes-
General
.
Special tools
BMW requires the use of either the DIS
or the MoDiC diagnostic tool to safely
and completely bleed the braking and
traction control systems. Read all
procedures through before beginning a
job.
Pedal prop
Brake caliper piston tool BMW 34 1 050
Brake pad lining gauge BMW 34 1 260
Vacuum tester BMW 34 3 100
Factory diagnostic tool DISplus or
MoDiC
E46 brake system
BMW E46 models are equipped with
vacuum power-assisted four-wheel disc
brakes with an integral Antilock Brake
System (ABS). Single-piston calipers
act on vented front and rear rotors. A
brake pad wear sensor for each axle
indicates when brake pads need
replacement. The dual drum-type
parking brake system is integrated with
the rear brake rotors.
Electronic braking and stability
control
E46 models were introduced with
Automatic Stability Control (ASC). ASC
is a computer controlled traction control
system that uses the ABS system in
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