1999 BMW 540i transmission oil

Downloaded from www.Manualslib.com manuals search engine
Lubrication System
To test switch, connect an ohmmeter between terminal in
switch body (arrow) and ground. With engine off, there
should be continuity. With engine running, oil pressure
should open switch and there should be no continuity. Re-
place a faulty switch.
CAUTION-
Keep in mind that low oil pressure may be preventing the
switch from turning the light out
If the light remains on while
the engine is running, check the oil pressure as described
earlier. Do not drive the car until the problem is corrected. The
engine may be severely damaged.
Crankshaft rear main seal replacement requires removal of
the transmission and flywheel.
Crankshaft rear main seal, replacing
(&cylinder)
- Remove transmission. See 230 Manual Transmission or
240 Automatic Transmission.
- Manual transmission vehicles: Remove clutch pressure plate
and disc. See
210 Clutch.
- Remove flywheel. See 210 Clutch or 240 Automatic Trans-
mission.
- Drain engine oil.
4 Remove seal carrier bolts from oil pan (arrows). Loosen all
oil pan bolts.

Downloaded from www.Manualslib.com manuals search engine
I Lubrication System -
- Remainder of assembly is reverse of disassembly.
Install flywheel, clutch or torque converter and
transmission.
Fill engine with oil.
- Run engine and check for leaks.
Tightening torques
Oil
drain plug fo oil pan (MI21 25 Nm (18 ft-lb)
Oil pan to engine
block
M6 (8.8 grade) 10 Nm (89 in-ib)
M6 (1 0.9 grade) 12 Nm (9 ft-lb)
M8 (8.8 grade) 22 Nm (1 6 it-lb)
Rear main seal carrier to crankcase
M6 10 Nm (89 in-lb)
ME 22 Nm (16 ft-lb)
Crankshaft rear main seal, replacing (V-8)
- Remove transmission. See 230 Manual Transmission or
240 Automatic Transmission.
- Manual transmission vehicles: Remove clutch pressure plate
and disc. See
210 Clutch.
- Remove flywheel. See 210 Clutch.
- Drain engine oil.
4 Remove bolts (A) retaining rear main seal carrier, including
bolts at (arrows) oil pan.
Carefully separate seal carrier from oil pan gasket and re-
move carrier.
CAUTION-
Do not damage oil pan gasket.
< Remove old seal and reinstall new seal into seal carrier using
) BMW special tools 11 1 230 and 00 5 500.

Downloaded from www.Manualslib.com manuals search engine
- When reinstalling seal carrier to crankcase:
Check locating sleeves for damage.
Replace gasitet between rear main seal carrier and
cranlt-
case.
Apply thin coat of
3 Bond 8 1209 or equivalent sealant to
oil pan
gasltet sealing surfaces.
* Lubricate crankshaft and seal contact surfaces.
4 Use BMW special tool 11 2 390 as an installation guide in fit-
ting seal over end of cranltshaft. Use care to push seal carrier
and support bushing on straight, without tilting. Remove in-
stallation guide carefully.
- Replace sealing washers under seal carrier mounting bolts.
- Install seal carrier mounting bolts and torque to specilica-
tions.
- lnstall oil pan bolts.
- Remainder of assembly is reverse of disassembly.
Install flywheel using new bolts,
Install clutch or torque converter and transmission.
* Fill engine with oil.
Run engine and
checlt for leaks.
Tightening torques Flywheel to crankshaft (use new bolts)
120 Nm (89 ft-lb)
011 dra~n plug to 011 pan (M12) 25 Nm (18 ft-lb)
Oil pan to
eng~ne block
M6 (8.8 grade) 10 Nm (89 in-lb)
M6 (1 0 9 grade) 12 Nm (9 ft-lb)
M8 (8.8 grade) 22 Nm (16 ft-lb)
Rear main seal carrier to crankcase
M6 10 Nrn (89 in-lb)
ME 22 Nm (16 ft-lb)

Downloaded from www.Manualslib.com manuals search engine
Lubrication system/
4 Install engine lifting tool at front of engine and raise engine
approximately
5 mm (114 in).
< Remove pinch bolt (arrow) at steering column universal joint
near steering rack. See
320 Steering and Alignment.
- Remove power steering pump, leaving hydraulic lines con-
nected to pump. Suspend pump using strong wire. See
320
Steering and Wheel Alignment.
NOTE-
For better access to power steering assembly, unbolt fluid
reservoir and suspend with wire.
Loosen upper nuts (arrow) in right and lefl engine mounts,
< Remove right and left lower engine mount nuts (arrow)
- On cars with automatic transmission, remove ATF cooler line
brackets from engine oil pan.
- Disconnect electrical harness connector at oil level sensor on
oil pan.

Downloaded from www.Manualslib.com manuals search engine
119-12
Lubrication System 1
4 Support subframe from below using BMW special tool 31 2
220 and appropriate shop lift. Remove
subframe mounting
bolts and lower
subframe as far as possible.
Remove oil pan screws (arrows) at cylinder block and trans-
mission bellhousing. Lower and remove oil pan.
NOTE-
If oil pan will not slide backwards, disconnect stabilizer bar
links and lower front axle support further.
If the oil pan does not separate easily from the engine cylin-
der
block, a few taps with a rubber malletshould breakit free.
Do not
pry the oil pan loose.
When installing oil pan: Thoroughly clean all old gasket material from mating sur-
faces and use a new gasket.
Apply a small amount of non-hardening sealer
(3 Bond
12098 or equivalent) to oil pan gasket directly below joints
(arrows) for end cover and front timing case cover. Apply
a bead
3 mm wide by 2 mm high.
Install all oil pan bolts finger tight. Tighten oil pan bolts to-
ward front of engine first, then pan bolts at transmission
end.
Tightening
torques
Oil drain plug to oil pan (M12) 25 Nm (18 ft-lb)
Oil pan to engine block
MG (8.8 grade)
MG (10.9 grade)
M8 (8.8 grade)
10 Nm (89 In-lb)
12 Nm (9 ft-lb)
22 Nrn (16 R-lb)

Downloaded from www.Manualslib.com manuals search engine
-- . - .. . - Lubrication system]
- Remainder of installation is reverse of removal.
Replace self-locking nuts when reinstalling front suspen-
sion components.
Use new oil dipstick tube sealing O-ring.
After adding engine oil, start and run engine. Raise engine
speed to 2,500 rpm until oil pressure warning light goes out
(about 5 seconds).
NOTE-
BMW does not specify a front end alignment following this
procedure.
Tightening torques Front subfrarne to body rail
(M12, use new bolts)
8.8 grade
10.9 grade
12.9 grade 77 Nrn
(57 ft-lb)
105 Nrn (77 ft-lb)
110 Nrn (81 ft-lb)
Stabilizer bar link to stabilizer bar
65 Nrn (48 ft-lb)
Steering shaft universal joint clamping bolt
(use new bolt)
19 Nrn (14 it-lb)
Lower oil pan, removing and installing (V-8)
- The V-8 engine is equipped with a 2-piece oil pan. The fas-
teners in
V-8 engine oil pump assembly, including the
sprocket retaining nut, are known to loosen and fall off into
the oil pan. Be sure to install these fasteners with Loctite
O
or equivalent thread locking product and torque to specifica-
tions.
CAUTION-
It is recommended that the oil pump retaining bolts and oil
pump drive sprocket retaining nut tightening torque be
checkedany time the
oilpan is removed.
- Raise car and place securely on jack stands.
WARNING-
Make sure the car is stable and well supported at all times.
Use a professional automotive lift
orjack stands designed for
- Remove splash shield from under engine.
- Drain engine oil
- On cars with automatic transmission, remove ATF cooler line
brackets from oil pan.

Downloaded from www.Manualslib.com manuals search engine
Lubr~cat~on System r- -
Working at lower rear of engine, remove oil pan retaining
bolts
(arrows).
- If necessary, remove oil cooler bracket from oil pan.
- Remove remaining oil pan bolts. Slide upper section of oil
pan forward to remove.
- Installation is reverse of removal, noting the following:
Clean sealing surfaces of debris.
- Coat joints with Three Bond 1209 O sealant.
Use new gaskets.
Install all oil pan bolts first, installing bolts at transmission
end without preload.
Tighten oil pan bolts at front end, then tighten bolts at rear
of engine.
Be sure to reinstall all oil
pump fasteners, including the
sprocl - After adding engine oil, start and run engine. Raise engine
speed to
2,500 rpm until oil pressure warning light goes out
(about
5 seconds).
Tightening torques
AIC drive belt tensloner
M6 10 Nm (7.5 it-lb)
M8 24 Nm (18 ft-lb)
Front axle
subframe to chassis
(Use new fasteners) 77 Nm (57 ft-lb)
Oil drain
line to upper oil pan 30 Nm (22 ft-lb)
Oil pump to crankcase 34 Nm (25 ft-lb)
Oil pan fasteners
(upperllower)
M6 8.8 10 Nm (7.5 ft-lb)
M6 10.9 (replace)
I2 Nm (9 ft-lb)
M8 8.8 22 Nm (16 ft-lb)
Steering column universal joint to
steering box (replace) 19 Nm (14 ft-lb)
Oil pressure warning switch, replacing
(&cylinder and V-8)
- In all models, the oil pressure warning switch is located at the
base of the oil filter housing.

Downloaded from www.Manualslib.com manuals search engine
130-1 3
Fuel Injection I
< Unplug harness connector (arrow) from sensor.
CAUTION-
Be sure ignition is OFF before disconnecting or reconnecting
DME system components.
NOTE-
Do not confuse the throttle position sensor on the main Nirot-
tle body with the throttle position switch on the secondary
throttle body, where applicable.
- Remove two mounting screws holding sensor to throttle
housing.
- Installation is reverse of removal. Clear adaptation settings
from ECM using BMW-compatible scan tool.
NOTE-
Poor idle quality may be noticeable for a period if the adapta-
tion settings are not cleared after installing new TPS.
ldle speed control valve,
checking and replacing
The idle speed control valve regulates idle speed by redirect-
inq airaround the throttlevalve.The idlespeed control valve is
mounted on the underside of the intake manifold adjacent to
the dipstick tube bracket. Accessing the valve is best accom-
plished by first removing the air filter housing and the throttle
body assembly.
The valve issupplied with
batteryvoltagefrom the ECM relay.
The idle speed control valve incorporates a two-coil rotary ac-
tuator. The ground sides of each coil are pulsed
sirnulta-
neously by the ECM. The duty cycle of each circuit is varied to
achieve the required idle speed.
Afaulty ldle speed control valve sets afault code and the MIL
is illuminated when
OED II fault criteria are exceeded.
Before checking the idle speed control valve, confirm that the
throttle position sensor is working correctly.
- With engine running, check that idle speed control valve is
buzzing.
- Turn on AIC system or shift transmission into drive. ldle
should remain steady or increase slightly.