2004 BMW 745i suspension

Notes

6

For your own safety

Fuels

Use unleaded gasoline only. Fuels
containing up to and including
10 % ethanol or other oxygenates with
up to 2.8 % oxygen by weight Ð that is,
15 % MTBE or 3 % methanol plus an equiv-
alent amount of co-solvent Ð will not void
the applicable warranties with respect to
defects in materials or workmanship. Field
experience has indicated significant differ-
ences in fuel quality Ð volatility, composi-
tion, additives, etc. Ð among gasolines
offered for sale in the United States and
Canada. The use of poor-quality fuels may
result in driveability, starting and stalling
problems, especially under certain environ-
mental conditions such as high ambient
temperature and high altitude.
Should you encounter driveability prob-
lems which you suspect could be related to
the fuel you are using, we recommend that
you respond by switching to a recognized
high-quality brand.
Failure to comply with these recommenda-
tions may result in unscheduled mainte-
nance.
Follow the relevant safety rules when you
are handling gasoline.

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Maintenance and repair

Advanced technology, e. g. the use
of modern materials and high-per-
formance electronics, requires specially
adapted maintenance and repair methods.
Therefore, only have corresponding work
on your BMW carried out by a BMW center
or a workshop that works according to
BMW repair procedures with correspond-
ingly trained personnel. If work is carried
out improperly there is a danger of conse-
quential damage and the related safety
risks.

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Parts and accessories

For your own safety, use genuine
parts and accessories approved by
BMW.
When you purchase accessories tested
and approved by BMW and Genuine BMW
Parts, you simultaneously acquire the
assurance that they have been thoroughly
tested by BMW to ensure optimized perfor-
mance when installed on your vehicle.
BMW warrants these parts to be free from
defects in material and workmanship.
BMW will not accept any liability for dam-
age resulting from installation of parts and
accessories not approved by BMW.
BMW cannot test every product made by
other manufacturers to verify if it can be
used on a BMW safely and without risk to
either the vehicle, its operation, or its occu-
pants.
Genuine BMW Parts, BMW Accessories
and other products approved by BMW,
together with professional advice on using
these items, are available from all BMW
centers.
Installation and operation of non-BMW
approved accessories such as alarms,
radios, amplifiers, radar detectors, wheels,
suspension components, brake dust
shields, telephones Ð including operation of
any portable phone from within the vehicle
without using an externally mounted
antenna Ð or transceiver equipment, for
instance, CBs, walkie-talkie, ham radio or
similar accessories, may cause extensive
damage to the vehicle, compromise its
safety, interfere with the vehicle's electrical
system or affect the validity of the BMW
Limited Warranty. See your BMW center for
additional information.

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Maintenance, replacement, or repair
of the emission control devices and
systems may be performed by any automo-
tive repair establishment or individual using
any certified automotive part.

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Technology for comfort, convenience and safety
94 In the event of a malfunction, the
warning lamp lights up yellow.
Have the system checked and
repaired at your BMW center as soon as
possible.
Check Control messages, refer to page 82.
Please take note of the additional informa-
tion on the Control Display.
Warning lamp on Canadian models.
Dynamic Drive
The concept
Dynamic Drive minimizes body roll and
optimizes vehicle stability during cornering
and evasive maneuvers.
Active stabilizers at the front and rear axles
form the basis for Dynamic Drive. Suspen-
sion compliance adapts to suit driving con-
ditions, varying from performance-oriented
during cornering to smooth and comfort-
oriented when the vehicle is proceeding in
a straight line.
The system assumes operational status
each time you start the engine.
Driving with Dynamic Drive
During vehicle operation, the system con-
tinuously runs through closed-loop control
cycles lasting only fractions of a second.
In case of malfunction
The symbol will light up, accompa-
nied by a status message in the
Check Control. Please take note of
the additional information on the Control
Display.
You can find more information on the
Check Control starting on page 82.
If the Dynamic Drive system switches
off in response to malfunction, please
remember to adapt your speed accord-
ingly, especially in curves.
The suspension will be noticeably softer
and the vehicle will display a greater ten-dency to tilt during cornering and in cross-
winds.
If a Check Control message stating that
you should stop appears in addition to the
red symbol, stop immediately and switch
off the engine. In this case the oil level in
the reservoir may have dropped below the
minimum, possibly owing to a leak in the
hydraulic system.
Please observe the additional instructions
provided on the Control Display.<
EDC Electronic Damping
Control*
The suspension responds to changes in
factors such as road surface, or operating
conditions such as steering and braking, by
adapting to the new conditions within frac-
tions of a second.
Two programs are available; they can be
selected in the "Settings" menu.
Comfort program
The Comfort program is suitable for use
throughout the vehicle's entire speed range
and regardless of load.
Sport program
You should select the Sport program for
consistently performance-oriented
response from shock absorbers and steer-
ing.

Technology for comfort, convenience and safety
96
Flat tire
Indicator lamp
The symbol in the Info Display lights
up red and a message appears
simultaneously. In addition, an
acoustic signal sounds.
Please note any supplementary information
that appears on the Control Display. You
can find more information on the Check
Control starting at page 82.
1.Reduce speed and stop the vehicle
carefully. Avoid sudden braking and
steering maneuvers
2.Identify damaged tire
If identification is not possible,
contact your BMW center.<
3.Replace the damaged tire, refer to
Changing wheels on page 202.
Vehicles with run-flat tires:
1.Cautiously reduce the vehicle speed to
below 50 mph/80 km/h. Avoid sudden
braking and steering maneuvers. Do
not exceed a vehicle speed of 50 mph/
80 km/h
Due to the reinforcement on the
side walls of the run-flat tires,
inflation pressure loss can not usually
be recognized from the outside, refer to
Run-flat tires on page 205.<
2.To continue driving, comply with the
instructions for driving with damaged
tires on page 205.
System malfunctions
Indicator lamp
The symbol in the Info Display lights
up yellow and a message appears
simultaneously. Please contact
your BMW center for assistance.
Please note any supplementary information
that appears on the Control Display.
Self-leveling suspension*
In the event of malfunction
A Check Control message appear-
ing together with this symbol indi-
cates a malfunction in the self-lev-
eling suspension. Please take note of the
additional information on the Control Dis-
play.
Stop and inspect the vehicle. If the rear of
the vehicle is visibly lower than the front,
possibly accompanied by a tilt noticeable
when you compare the left rear with the
right rear, please respond by immediately
proceeding to the nearest BMW center.
Drive with appropriate caution in the mean-
time. The vehicle has reduced ground
clearance and driving comfort may be
noticeably reduced. Even if the attitude of
the vehicle is normal, you should consult
the nearest BMW center if the warning
lamp indicates a system fault.
Brake force display
The Brake force display indicates the inten-
sity with which you are applying your
brakes to drivers of following vehicles.
The display consists of two stages:
>Normal braking:
The brake lamps in the tail lamp assem-
blies and the high-mount brake lamp on
the rear tray light up during braking
>Heavy braking and braking with ABS:
The tail lamps also light up with the
same intensity as the standard brake
lamp units to enhance the warning
effect of the brake lamps.

Giving and receiving assistance
208 1.Remove the cover of the BMW auxiliary
terminal for jump-starting
2.Connect one terminal clamp of the pos-
itive/+ jumper cable to the positive ter-
minal of the battery or an auxiliary ter-
minal for jump-starting of the vehicle
providing starting assistance
3.Connect the second terminal clamp of
the positive/+ jumper cable to the posi-
tive terminal of the battery or to an aux-
iliary terminal for jump-starting of the
vehicle to be started
On your BMW, there is a special nut as
body ground on the suspension strut
dome, refer to arrow 2 in the illustration.
4.Attach one end of the negative/Ð jumper
cable to the negative terminal of the
battery or to an engine or body ground
of the vehicle providing assistance
5.Connect the second terminal clamp of
the negative/Ð jumper cable to the neg-
ative terminal of the battery or to the
engine or body ground of the vehicle to
be started.
Starting the engine
1.Start the engine on the support vehicle
and allow it to run for several minutes
at a fast idle
2.Start the engine on the other vehicle in
the usual way.
If the first start attempt is not success-
ful, wait a few minutes before another
attempt in order to allow the discharged
battery to recharge
3.Allow the engines to run for several
minutes
4.Disconnect the jumper cables by
reversing the connection sequence.
If required, have the battery inspected and
recharged at your BMW center.
Never use spray fluids to start the
engine.<
Having vehicle towed
Always observe all applicable towing
laws and regulations.
Even if the transmission is in perfect work-
ing order, remember to disengage the
transmission lockout manually before tow-
ing the vehicle. Failure to observe this pre-
caution could result in automatic activation
of the transmission lockout while the vehi-
cle is being towed.<
Manual release of the transmission lockout,
refer to page 68.
Towing with a commercial tow truck
>Use a wheel lift or flatbed carrier
>Do not tow with sling-type equipment.
Never allow passengers to ride in a
towed vehicle for any reason.<
Towing with raised front axle
Do not tow the vehicle by the rear
axle; because the steering detent is
not operational, the wheels could turn to an
extreme angle during towing.<
1.Manual release of the transmission
lockout, refer to page 68.
2.Towing speed:
Maximum of 45 mph/70 km/h
3.Towing distance:
Maximum of 90 miles/150 km.

Mobility
209Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Tow fitting
The threaded tow fitting is stored in the tool
kit mounted on the inside of the luggage
compartment lid, refer to page 200, and
should always remain in the vehicle.It can
be screwed in at the front or rear of the
vehicle.
Access to tow sockets
Front
Rear
Press the arrow symbol to push out the
cover.
Only use the tow fitting that comes
with the vehicle and screw it in as far
as it will go. Only use the tow fitting to tow
on the roadway. Adhere to these specifica-
tions, as otherwise the tow fitting can be
torn out and damage the vehicle.
Never attempt to tow or tie down the vehi-
cle using suspension components, as this
could lead to damage that might ultimately
result in an accident.<