BMW 3 (E46). Manual — part 146
311-3
Front Differential
Procedures for replacement of O-ring
seal between the engine oil pan and
the front differential or right side
bearing pedestal are covered in
Front axle differential, removing and
installing
and
Right axle bearing
pedestal, removing and installing
.
Front differential oil, checking
and filling
Note:
BMW supplies the E46 all wheel drive
models with lifetime lubrication in the
front differential.
Front differential drain plug and fill
plug (arrows).
Note:
Use an Allen bit socket to remove drain
plug. Alternatively, cut approximately
30 mm (1.2 in) from an Allen key and
use a box end wrench on key stub.
-
Remove oil filler plug.
Note:
Differential fluid level is correct when
fluid begins to spill from fill plug.
-
Fill differential with appropriate
type and quantity of lubricant to
bottom of fill plug bore.
-
Install and tighten fill plug.
Final drive drain and fill
Final drive drain and fill
Oil specifications
BMW SAF-XO
synthetic oil
Front axle
differential oil
capacity
0.7 liters (0.74
US qts.)
Tightening torque
Front axle
differential drain /
fill plug
65 Nm (48 ft-lb)
Front axle differential,
removing and installing
-
Disconnect battery negative (-)
ground at battery.
CAUTION!
Prior to disconnecting battery, read
battery disconnection cautions given
at front of this manual on page viii.
-
Lift vehicle and support safely.
WARNING!
Make sure car is stable and well
supported at all times. Use a
professional automotive lift or jack
stands designed for purpose. A floor
jack is not adequate support.
-
Remove splash shield from below
engine compartment.
Support engine using appropriate
lifting device.
Release nut at top on right engine
mount (arrow).
Remove nut (arrow) at bottom on left
engine mount.
-
Raise engine approximately 10
mm (0.4 in.).
-
Remove front wheels. Unbolt
brake calipers and suspend from
body using stiff wire. See
340
Brakes
.
-
Remove front driveshaft. See
260 Driveshaft
.
Remove left inner ball joint mounting
bracket bolts (arrows) from subframe.
-
Repeat for right side.
Support left control arm. Working at
rear of subframe, remove control arm
rear bracket mounting bolts (arrows).
-
Repeat for right side.
Remove left tie rod outer end nut
(arrow). Use BMW special tool 32 3
090 or equivalent to press tie rod end
off steering are.
-
Repeat for right side.
Remove left ABS sensor (arrow) from
steering arm.
-
Repeat for right side.
-
Unclip brake hoses and electrical
harness wires from mounting
brackets.
-
Swing control arms and steering
arms out of the way. Using BMW
special tool 31 1 170 or equivalent
pry bar, pry inner CV joints out of
front differential and bearing
pedestal.
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