2001 BMW 530i prop shaft

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Camshaft Timing Chain
4 Replace primary timing chain tensioner oil supply seal (ar-
row) in right cylinder head.
- Install right upper timing chain cover to engine:
Remove old gasket from
left timing cover.
Clean gasket groove and install new gasket.
Apply Three Bond
1209Osealant to joint between cylinder
head and timing cover.
Fit timing cover into position on engine and install lower in-
side cover retaining bolt
Timing cover retaining bolts finger tight.
4 Remove cylinder head cover sealing gaskets from right cylin-
der head cover. Install
BMW special tool 11 1 41 1 into gasltet
groove of cylinder head cover.
Install right cylinder head cover with
BMW special tool 11
1 41 1 to right cylinder head. Fit cylinder head cover retain-
ing nuts to cylinder head cover studs at cylinders 1 and 2
(first two cylinders on right side cylinder bank).
Tighten nuts uniformly in
'Il turn steps.
NOTE-
BMW special tool 11 1 4 11 presses upper timing cover to cyl-
inder head to aid
in proper sealing of timing chain cover to the
cylinder head gasket.
Tightenlng torque
Timing case cover to head 15
Nm (1 1
It-lb)
- Remove special tool 11 1 41 1 and install new gaskets to cyl-
inder head cover:
Clean gasltet groove and install new gasltet.
Apply Three Bond 1209 Osealant to joint between cylinder
head and timing cover and at half-moon shaped cut-outs.
Tighten cylinder head cover nuts.
Tightenlng torque
-
Cylinder head cover to head 15 Nm (1 1 ft-lb)

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I Ignition System
Camshaft position sensors
The camshaft position sensors are used by the englne man-
agement system for VANOS control, sequential fuel injection
and knock control.
Intake camshaft position sensor, replacing
(M52,M52 TU
and M54 engines)
- Make certain ignition has been turned off.
- Remove plastic cover from above fuel injectors by prying off
bolt covers and removing cover mounting bolts.
Remove complete air filter housing:
Disconnect electrical harness connector on mass air flow
sensor
(A).
Detach vacuum line at intake boot (B).
Loosen hose clamp at intake boot and detach air duct con-
nections
(C).
* Disconnect cold air duct tube (D).
Remove filter housing mounting screws (E).
- Disconnect harness connector from VANOS solenoid and
unscrew solenoid from VANOS control unit. Be prepared with
shop rags to catch oil released from VANOS unit.
Remove camshaft sensor (arrow) from
left front of cyl~nder
head, next to top of oil filter housing.
Disconnect camshaft sensor harness from under intake
manifold. Prior to removal, attach a stiff piece of wire to the
harness connector end to preserve proper routing of harness
for reinstallation.
Installation is reverse of removal, noting the following:
Use new O-rings when installing sensor and solenoid.
Be sure wiring is rerouted in same orientation.
Use scan tool to read out and clear
ECM fault memory
Tightening torques
-
Intake camshaft sensor to cylinder head 10 Nrn (7 ft-lb)
VANOS solenoid to VANOS control unit 30 Nm (22 ft-lb)

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130-68
Fuel Injection
0
4 The ME 7.2 uses a non-return fuel rail. The fuel pressure reg-
ulator is integrated into the fuel filter.
I iY.,lii,in
4 The M62 TU engine uses a continuously variable VANOS
system at each intake camshaft. This system enhances en-
gine performance and reduces tailpipe emissions. Both cam-
shafts are adjusted simultaneously within
20" (maximum) of
the camshafts rotational axis. This equates to a maximum
span of
40°crankshaft rotation.
regulalor from luel pump
NOTE-
The fuel filter is available as a replacement part without the
fuel pressure regulator. When replacing the fuel filter, trans-
fer the fuel pressure regulator from the old
filter to the new fil-
ter.
Engine idle speed control is a function of the EDK. The M62
TU engine does not use a separate idle control valve.
Mmn CON,ROL
EML
< The M62 TU engine uses an electrically controlled throttle
valve called EDK. The throttle plate is positioned by a DC
gear reduction motor based on inputs signals to the ECM
from the pedal position sensor (PWG).
When the accelerator pedal is moved, the PWG provides a
change in the monitored signals. The ME
7.2 control module
compares the input signal to a programmed map and appro-
priately activates the EDK motor via proportional pulse width
modulated control signals. The control module self-checks its
activation of the EDK motor via the EDK feedbaclc
potentiom-
eters.

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170-8
I Radiator and Cooling System
Common cooling system faults can be grouped into one of 4
categories:
Cooling system
lealts
Poor coolant circulation
Radiator cooling fan faults
Electrical/electronic faults
Cooling system inspection
- Check that coolant pump drive belt tensioner is functioning
properly and that belt tension is correct. Belt tensioner sys-
tems for the different models are shown in
020 Maintenance.
- Check condition of coolant pump drive belt.
- Checlc coolant hoses for cracks or softness. Checlc clamps
for looseness. Check coolant level and check for evidence of
coolant
lealts from engine.
- Check that radiator fins are not blocked with dirt or debris.
Clean radiator using low-pressure water or compressed air.
Blow outward, from engine side out.
- To check coolant pump:
Remove mechanical cooling fan. See Mechanical
(vis.
cous clutch) cooling fan, removing and installing.
Remove drive belt from coolant pump pulley. See
020
Maintenance.
Firmly grasp opposite sides of pulley and check for play in
all directions.
Spin pulley and check that shaft runs smoothly without
play.
NOTE-
The coolant provides lubrication for the pump shaft, so an oc-
casional drop of coolant
lealing from the pump is acceptable.
If coolant drips steadily from the vent hole, replace the pump.
- At normal engine operating temperature, cooling system is
pressurized. This raises boiling point of coolant.
Leaks may
prevent system from becoming pressurized. If visual evi-
dence is inconclusive, pressure test cooling system as de-
scribed later to help pinpoint hard-to-find leaks.
- If cooling system is full of coolant and holds pressure:
- Use an appropriate scan tool to interrogate engine control
module (ECM) for radiator fan or DME control circuit faults.
Checlc for loose or worn drive belt.
0 Test for failed thermostat or coolant pump impeller. Some
pumps may be fitted with plastic impellers.

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230-1 8
Manual Transmission
- Unbolt clutch slave cylinder from side of transmission. Do not
disconnect fluid hose. Suspend slave cylinder from chassis
using stiff wire.
CA UTIOG
Unbolt clutch slave cylinder slowly to prevent air being
drawn into hydraulic system.
. Do not operate clutch pedal with slave cylinder re-
moved from transmission.
4 Put BMW special tool 11 7 370 or appropriate sized spacer
between engine oil sump and front axle support. Lower trans-
mission until engine is supported on spacer.
0 V-8 vehicle: Turn front wheels to prevent strain from being
placed on center tie rod.
All vehicles: Tilting the engine to lower the transmission
can lead to damage to various components due to lack
of clearance at rear of engine. Lower transmission
slowly
- Support front of engine with floor jack.
4 Disconnect shift rod from selector shaft coupling
- Disconnect shift console from top of transmission. See 250
Gearshift Linkage.
6-cylinder: Remove transrnisslon mounting Torx-head bolts
(arrows). Note length and locatlon of bolts.
Remove
transrnlssion by pulling backward untll transmls-
sion Input shaft clears clutch d~sc spl~nes, then pull down-
wards. Lower
transmlsslon jack to remove transrnlsslon. -
- - -
-

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Manual Transmission
4 V-8 engine: Remove transmission mounting Tom-head bolts
(arrows). Note length and location of bolts.
Remove transmission by pulling backward until transmis-
sion input shaft clears clutch disc splines, then pull down-
wards. Lower transmission jack to remove transmission.
- Installation is reverse of removal, keeping in mind the
following:
When installing a new transmission, be sure to transfer
parts from old transmission
if applicable.
Thoroughly clean input shafl and clutch disc splines. Light-
ly lubricate transmission input shaft before installing.
* Be sure bellhousing alignment dowel sleeves are located
correctly. Replace damaged sleeves.
Center rear of transmission in driveshaft tunnel before
tightening transmission support bracket.
NOTE-
In order to avoid difficulties in transmission removal at a fu-
ture time, use washers with Torx-head mounting bolts.
- Reinstall driveshaft. Use new nuts when mounting driveshaff
to transmission/flex disc. See 260 Driveshaft.
- Refill transmission with appropriate lubricant before starting
or towing car. See Transmission fluid service earlier in this
repair group.

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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.
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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.