2000 BMW 540i torque

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Automatic Transmission
NOTE-
Use new ATF pan bolts purchased from BMW Alternatively,
clean old bolts and coat with
LoctiteB thread locl pound or equivalent
Automatic transmission fluid capacity
with torque converter
7.8 liters (8.3 US qt)
without torque converter
3.3 liters (3.5 US qt)
A5S 360R 1 A5S 390R
with torque converter
without torque converter 9 liters (9.5 US qt)
4 liters (4.2 US qt)
A5S 3252 (2.5 liter engine)
with torque converter
without torque converter
8.9 liters (9.4 US qt)
6.2 liters (6.5 US qt)
A5S 3252 (3.0 liter engine)
with torque converter
8.7 liters (9.3 US qt)
without torque converter
6.1 liters (6.4 US qt)
A5S 5602
with torque converter 13.1 liters (13.8 US qt)
without torque converter
5.5 liters (5.8 US qt)
A5S 4402
with torque converter
without torque converter 9.7 liters (10.2 US qt)
4.0 liters (4.2 US qt)
Tightening torques
ATF drain plug to ATF pan
A4S 310R 33 Nm (24 ft-lb)
A5S 360R I A5S 390R (M14) 20 Nm (15 It-lb)
A5S
3252 35 Nm (26 ft-lb)
A5S 560Z 50 Nm (37 ft-lb)
A5S
4402 (MI 6) 30 Nm (23 ft-lb)
ATF fill plug
to transmission housing
A4S 31 OR 25 Nm (I8 ft-lb)
A5S 360R 1 A5S 390R (M14) 20 Nm (1 5 ft-lb)
A5S 3252 30 Nm (23 ft-ib)
A5S 5602 100 Nm (74 ft-lb)
A5S 4402 (M18) 35 Nm (26 ft-lb)
ATF pan to transmission (M6)
A4S 310R
A5S
360R 1 A5S 390R
A5S 3252
A5S
5602
A5S 4402
12 Nm (9 ft-lb)
10 Nm (7 ft-ib)
6 Nm (4 ft-lb)
10 Nm (7 ft-lb)
10 Nm (7 ft-lb)

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Automatic Transmission
4 Remove transmission cooler line clamp mounting nut (ar-
row) from transmission bell housing. Disconnect cooler lines
from transmission.
- Disconnect both transmission cooler fluid lines from trans-
mission.
CAUTION-
Place a pan under transmission fluid lines to catch dripping
fluid.
4 Remove access plug in cover plate below engine oil pan
(V-8 models) or left side of bellhousing (6-cylinder models).
Remove torque converter bolts. Turn
cranltshaft to access
bolts.
V-8 models: Place BMW special tool 23 3 030 between
engine oil pan and front
subframe (arrows).
- 6-cylinder models: Place BMW special tool 11 7 370
between engine oil pan and front subframe.
- Support transmission with transmission jack.
4 Remove transmission crossmember bolts A, B and C and re-
move transmission support crossmember
(V-8 model shown,
6-cylinder models are similar).
- Remove bellhousing-to-engine mounting bolts.
- Use appropriate selection of BMW special tools 24 4 130 to
hold torque converter in place during transmission removal.
CAUTION-
Do not allow the torque converter to fall off the transmission
input shaft
- Remove transmlsslon by pull~ng back and down. Lower jack
to allow transmiss~on to clear vehicle.
rrs corn-hi8 Rniiti Riranrd

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240-1 3
Automatic ~ransmissionl
- Blow out oil cooler lines with low-pressure compressed air
and flush cooler with clean ATF twice before reattaching lines
to transmission.
CA UTIOG
Wear safety glasses when worling with compressed air:
@ Do not reuse ATF used for flushing.
- Remainder of installation is reverse of removal, noting the fol-
lowing:
Reinstall driveshafl using new nuts.
Install new sealing washers on transmission cooling line
banjo bolts.
Install new O-rings on transmission cooler lines, where
applicable.
Inspect engine drive plate (flywheel) for cracks or elongat-
ed holes. Replace
if necessary.
Be sure bellhousing alignment dowel sleeves are located
correctly. Replace damaged sleeves.
Checlc to be sure torque converter is seated correctly in
transmission during final installation.
Use
BMW special tool 24 2 300 to align three mounting
tabs on torque converter with indentations on drive plate
(flywheel).
Fill transmission with clean ATF until oil level is even with
fill hole. Then check fluid level as described earlier.
Adjust gearshift mechanism. See
250 Gearshift Linkage.
NOTE-
In order to avoid difficulties in transmission removal at a fu-
ture time, use washers with Torx-head mounting bolts.

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. .
l~utomatic Transmission
Tightening torques
ATF drain plug to ATF pan
A4S 310R 25 Nm (I8 ft-lb)
A5S 360R I A5S
390R (M14) 18 Nm (14 ft-lb)
A5S 3252 35 Nm (26 ft-lb)
A5S 5602 50 Nm (37 ft-lb)
A5S 4402 (M
16) 30 Nm (23 ft-lb)
ATF fill plug
to transmission housing
A4S 310R 33 Nm (24 ft-lb)
A5S 360R I A5S 390R (M14) 18 Nm (14 ft-lb)
A5S
3252 30 Nm (23 ft-lb)
A5S 5602 100 Nm (74 ft-lb)
A5S
4402 (M18) 35 Nm (26 ft-lb)
Flex-disc to transmission output flange
MI0 (8.8 grade) 48 Nm (35 it-lb)
MI 0 (1 0.9 grade) 60 Nm (44 R-lb)
MI2 (8.8 grade) 81 Nm (60 ft-lb)
MI 2 (1 0.9 grade) 100 Nm (74 ft-lb)
MI4 140 Nm (103 it-lb)
Torque converter to drive plate 45 Nm (33 ft-lb)
(flywheel)
(MIO)
Transmission crossmember to chassis or transmission
M8 21 Nm (15 ft-lb)
MI0 42 Nm (32 it-lb)
Transmission cooler lines to transmission
Banjo bolt
(M18. A5S 4402 transmission)
Banio bolt
(M16)
25 Nm (18 ft-lb)
37 Nm (27 ft-lb) . . Banjo bolt cap screw
(M18, A5S 4402 transmission) 20 Nm (15 it-lb
Compression fitting
(MI4 or M16) 37 Nm (27 ft-lb)
Oil cooler
bracket to transmission
(M8) 21 Nm (15 ft-lb)
Transmission to engine
21 Nm (15 ft-lb)
42 Nm (31 ft-lb)
72 Nm (53 ft-lb)

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Gearshift Linkage
- Connect selector rod to shift lever. Lift transmission, install
crossmember and tighten crossmember bolts.
Install driveshaft and heat shield. See
260 Driveshaft.
Reinstall exhaust system. See 180 Exhaust System.
. Lower vehicle. Install shift boot. Push shift ltnob on lever.
Tightening torque
Driveshaft
CV joint to final drive flange
. MI0 (Tom bolt)
70 Nm (51 ft-lb)
. M8 (compression nut) 32 Nm (24 ft-lb) - Driveshaft clamping sleeve
- MI0 ribbed nuts
80 Nm (59 ft-lb)
MI0 compressed nuts 64 Nm (47 ft-lb)
Flex-disc to driveshaft or transmission flange
MlO (8.8 grade) 48
Nm (35 ft-lb)
. MI0 (10.9 grade) 60
Nm (44 ft-lb)
- MI2 (10.9 grade) 100 Nm (74 ft-ib)
MI4 140 Nm (103 fi-lb)
Transmission crossmember
. to transmission 21 Nm (15 ft-lb)
. to chassis 42 Nm (30 ft-lb)

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pearshift Linkage
~UTOMATIC TRANSMISSION
GEARSHIFT
Automatic transmission gearshift mechanism
automatic
5-speed Steptronic (5251,530i)
1. Shift lock solenoid
2. Shifter assembly
3. Shift cable
4. Support bracket
5. Selector lever
Gearshift mechanism, adjusting
(automatic transmission)
- Position gearshift lever in Park.
- Raise vehicle to gain access to shift linkage.
WARNING -
Make sure the car is stable and well supported at all times.
Use a professional automotive
lift orjack stands designed for
the purpose.
4 Counterhold bushino A and loosen cable clam~ino nut 6.
Push cable end backward away from engine (arrow 2).
Release pressure on cable.
Tighten clamping nut.
/ CAUTION--
Tightening torque
Shift cable clamping nut
10 Nm (7.5 it-lb)

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Driveshaft
4 Driveshaft center slide nut spanner
(Tool No. BMW
26 1 040)
7, 25 1 Ho 4 cv joint removal tool
(Tool No. BMW 26 1 11 0)
support assembly
Driveshaft description
4 The two-piece driveshaft is connected to the transmission by
a rubber flex-disc and to the rear final drive by a constant ve-
locity (CV) joint.
A universal joint is used at the center of the driveshaft and
the shaft is supported in the middle by a center support
bearing. The bearing is mounted in rubber to isolate vibra-
tion.
- The rear constant velocity joint compensates for fore and
aft movement of the drive line.
Troubleshooting
The source of driveline vibrations and noise can be difficultto pin-
point. Engine, transmission, rear axle, or wheel vibrations can be
transmitted through thedriveshaftto the car body. Noises from
thecar may be caused by final drive problems, or by faulty wheel
bearings, drive axles, or even
wom or improperly inflated tires.
NOTE-
For drive axle repair information, see 331 Final Drive
Driveshaft noise or vibration may be caused by worn
ordam-
aged components. Check the universal joint for play. With the
driveshaft installed, pull and twist the driveshaft while watch-
ing the joint. The
BMW specification for play is very small, so
almost any noticeable play could indicate a problem.
Check the torque of the fasteners at the flange connections.
Check the rubber of the flex-disc and center bearing for dete-
rioration or tearing. Check the driveshaft for broken or miss-
ing balance weights. The weights are welded tabs on the
driveshaft tubes. In addition to inspecting for faulty driveshaft
parts, the installed angles of the driveshaft should also be
considered.

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Driveshaft
- Road test vehicle to check for noise or vibration
CAUTION-
Do not reuse self-locking nuts. These nuts are designed to
be used only once.
Avoid stressing the flex-disc when torquing the bolts.
Do this by counterholding the bolts and turning the nuts
on the flange side.
Tightening torques
Alunlinum driveshaft to flex-disc
- MI2 (use coated washers)
90 Nm (66 ft-lb)
Driveshaft
CV joint to final drive flange
Mi0 (Tom 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)
MI 0 (1 0.9 grade) 60 Nm (44 ft-lb)
- Mi2 (8.8 grade)
81 Nm (60 ft-lb)
- MI2 (10.9 grade) I00 Nm (74 ft-lb)
MI4 140 Nm (103 ft-lb)
Transmission
crossmember
to transmission (ME) 21 Nm (15 ft-lb)
. to chassis (M10) 42 Nm (30 ft-lb)
NOTE-
Boltgrade is marked on the bolt head. When replacing bolts,
only use bolts of the same strength and hardness as the orig-
inals installed.
Flex-disc, replacing
- Checlc flex-disc between front section of driveshafl and trans-
mission output flange for craclts, tears, missing pieces, or
distortion. Check for worn bolt hole bores in flange.
- If flex-disc needs replacement, remove driveshafl as de-
scribed earlier.
- Unbolt flex-disc from driveshaft.
NOTE-
Removal andinstallation of the bolts may be made easier by
placing a large hose clamp around the flex-disc, and tighten-
ing the clamp slightly to compress the rubber.