2004 BMW 525I SEDAN torque

Technology for comfort, convenience and safety
78
CBC Cornering Brake Control
CBC is a supplement to ABS. It provides
further enhancements in vehicle stability
and steering response during lane changes
and cornering at high rates of lateral accel-
eration.
EBV Electronic Brake Force
Distribution
EBV controls the brake system's applica-
tion pressure at the rear wheels to ensure
stable deceleration.
In case of malfunction
If the brake system warning lamp
lights up in red, appearing together
with the yellow indicator lamps for
ABS and DSC:
The driving stability control has
failed.
If all three lamps light up yellow:
Fault in the driving stability control.
The EBV electronic brake-force distribution
is active.
While you may continue, you should
remember to proceed cautiously and drive
defensively while avoiding full brake appli-
cations.
Please have the system checked at the
nearest BMW center.
If a message appears on the Control Dis-
play, please note the supplementary infor-
mation.
You can find more information on the
Check Control starting on page 68.
Indicator and warning lamps for
Canadian models.
Driving stability control/
DSC Dynamic Stability
Control
The concept
DSC maintains vehicle stability, even in
critical driving situations.
The DSC is operational every time you start
the engine. DSC includes the functionality
of the DTC Dynamic Traction Control and
DBC Dynamic Brake Control, refer to
page 79.
The system optimizes vehicle stability dur-
ing acceleration and when starting from a
full stop, as well as optimizing traction. The
system recognizes any tendency for the
vehicle to assume an unstable attitude
such as oversteer or understeer; it then
counteracts this tendency with a combina-
tion of graduated reductions in engine
torque and selective braking intervention at
individual wheels. DSC provides optimal
stability within the limits defined by the
laws of physics.
Indicator lamps
The indicator lamp in the instrument
cluster goes out soon after you start
the engine.
If the indicator lamp flashes:
DSC is regulating the drive and braking
forces.
If the indicator lamp lights up permanently:
DSC has been switched off using the but-
ton.
If the indicator lamp and the brake
warning lamp light up permanently:
Malfunction in DSC, DTC and DBC.
When the system is off, the stability main-
tenance functions described above are no
longer available. The vehicle will remain
completely operational, however, without
DSC.
Please respond to any malfunctions by
referring the problem to your BMW center.

Controls
79Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Indicator and warning lamps for
Canadian models.
DTC Dynamic Traction Control
In special driving states, e.g. in deep snow,
DTC ensures maximum forward momen-
tum. The gain in forward momentum also
involves a reduction in driving stability.
DTC is active up to 45 mph/70 km/h.
Activating DTC
Press the DSC button briefly; the
DTC indicator lamp in the instru-
ment cluster lights up permanently.
You may find it useful to briefly activate
DTC under the following special circum-
stances:
>When rocking the vehicle and starting
off in deep snow or on loose road sur-
faces
>When ascending snow-covered hills,
and when driving in deep or on hard-
packed snow
>When driving with snow chains.
When DTC is active, DSC provides
only limited system response up to a
speed of approx. 45 mph/70 km/h. Control
intervention for stability-enhancement is
reduced.<
Deactivating DTC again
Press the DSC button again; the DTC indi-
cator lamp in the instrument cluster goes
out. DSC is available once again without
restriction.
Deactivating DSC
Press the DSC button for at least 3 sec-
onds; the DSC indicator lamp in the instru-
ment cluster lights up permanently. DSC is
deactivated.
Deactivating DSC automatically deacti-
vates DTC as well. The systems for
enhancing stability and traction are deacti-
vated, and there is no active braking inter-
vention or torque control.
A message appears on the Control Display.
Please note any supplementary information
that appears there.
To maintain optimal stability, drive
with the system on whenever possi-
ble.<
Reactivating DSC
Press the DSC button again briefly; the
indicator lamp in the instrument cluster
goes out. DSC is now activated.
The laws of physics cannot be
repealed, even with DSC. An appro-
priate driving style always remains the
responsibility of the driver. Therefore, do
not reduce the additional safety margin
again by taking risks.
Do not make any modifications to the DSC
system. Never allow anyone other than
authorized professional technicians to
carry out service or repairs on the DSC sys-
tem.<
DBC Dynamic Brake Control
When you apply the brakes rapidly, this
system automatically produces the maxi-
mum braking force boost and thus helps to
achieve the shortest possible braking dis-

Replacing components
188 3.Loosen the lug bolts 1/2 a turn
4.Set up the jack beneath the jacking
point closest to the flat tire. Ensure that
the entire surface of the jack's base is in
firm contact with the ground and that
the jack itself is standing completely
vertical, not tilted, and that the fitting on
the top of the jack will align with the
rectangular recess on the vehicle when
you raise it, refer to illustration
5.Jack the vehicle up until the wheel you
are changing is raised from the ground
6.Unscrew the lug bolts and remove the
wheel
7.Remove accumulations of mud or dirt
from the mounting surfaces of the
wheel and hub. Clean the lug bolts
8.Position the new wheel or compact
wheel. Secure the wheel by turning at
least two lug bolts into opposite bolt
holes
9.Screw in the remaining lug bolts.
Tighten all the bolts securely in a diag-
onal pattern
10.Lower the jack and remove it from
beneath the vehicle
11.Tighten the lug bolts in a diagonal pat-
tern
12.Check and correct the tire inflation
pressure at the earliest opportunity.
Protect valve stems and valve stem
seal caps against dirt and contamina-
tion. Dirt in valve stems is a frequent source
of gradual air loss.<
After mounting the wheel or correcting the
inflation pressure, reinitialize the Flat Tire
Monitor, refer to page 81.The vehicle jack is designed for
changing wheels only. Do not attempt
to raise another vehicle model with it or to
raise any load of any kind. To do so could
cause accidents and personal injury.
To ensure safety, always have the lug bolts
checked with a calibrated torque wrench
as soon as possible to ensure that they are
tightened to the specified torque.
The tightening torque is 120 Nm.<
Reverse the removal sequence to store the
wheel and tools in the vehicle.
When you mount wheels other than Genu-
ine BMW light-alloy wheels, different lug
bolts may also be required.
Always have damaged tires replaced and
the wheel and tire assembly rebalanced at
the earliest possible opportunity.
Driving with the compact wheel
Drive reservedly and do not exceed a
speed of 50 mph/80 km/h.
The driving characteristics change, for
example reduced track stability on braking,
extended braking distance, and altered
self-steering characteristics in the limit
range. In conjunction with winter tires,
these characteristics are more pro-
nounced.
Only one compact wheel may be
mounted. You should fit wheels and
tires of the original size as quickly as possi-
ble.<
Battery
Battery care
The battery is 100% maintenance-free, i.e.,
the electrolyte will last for the life of the bat-
tery when the vehicle is operated in a tem-
perate climate.
For all questions that regard the bat-
tery, please consult your BMW cen-
ter.<

Technical data
198
Technical data
Engine specifications
525i530i
Displacement
Number of cylinders cu in/cmm152.2/2,494
6181.8/2,979
6
Maximum output
at engine speed hp
rpm 184
6,000225
5,900
Maximum torque
at engine speed lb ft/Nm
rpm 175/237
3,500214/290
3,500
Compression ratio e 10.5 10.2
Stroke
Bore in/mm
in/mm 2.95/75.0
3.31/84.03.53/89.6
3.31/84.0
Fuel-injection system Digital electronic engine-management system
545i
Displacement
Number of cylinders cu in/cmm268.4/4,398
8
Maximum output
at engine speed hp
rpm 325
5,900
Maximum torque
at engine speed lb ft/Nm
rpm 330/448
3,600
Compression ratio e 10.0
Stroke
Bore in/mm
in/mm 3.26/82.7
3.60/92.0
Fuel-injection system Digital electronic engine-management system

Everything from A to Z
214 TeleService 161
Ð enabling 161
Ð services offered 162
Temperature display
Ð ice warning 65
Ð outside temperature 65
Ð setting the units 74
"Terminate services" 165
"Text language" 74
The BMW Maintenance
System 181
Tightening torque, refer to
Tightening lug bolts 188
Tilt function, passenger-
side mirror 39
"Time" 74
"Time 1" for independent
ventilation 95
"Time 2" for independent
ventilation 95
Timer, refer to Preselecting
switch-on time 95
Tire pressure monitoring,
refer to Flat Tire
Monitor 80
Tire Quality Grading 173
Tires
Ð age 172
Ð changing 174
Ð condition 173
Ð damage 174
Ð flat 187
Ð inflation pressure 170
Ð pressure monitoring 80
Ð replacing 187
Ð run-flat 175
Ð size 172
Ð tread 173
Ð wear indicators 174
Tone control 131
Tone on locking/
unlocking 28
Tools, refer to Onboard tool
kit 184
"Top 8" for portable
phone 155
Torque 198
Ð lug bolts 188
Touch tone dialing 156
Tow fitting 193Towing
Ð with automatic
transmission 193
Ð with sequential manual
transmission SMG 193
Towing eye 193
Tow sockets for tow
fitting 194
Tracks
Ð random play
sequence 142, 146
Ð sample scan 142, 145
Track width, refer to
Dimensions 199
Traction Control System,
refer to DSC 78
Transmission
Ð automatic transmission
with Steptronic 54
Ð manual transmission 51
Ð Sequential manual
transmission SMG 51
Transporting children
safely 45
Transport securing device,
refer to Securing the
load 109
Tread depth, refer to Tire
tread 173
"Treble", audio
systems 132
"Trip computer" 72
Trip computer 71
Trip-distance counter, refer
to Trip odometer 65
"Triple turn signal
activation" 56
Trip odometer 65
Trunk lid, refer to Luggage
compartment lid 31
Turning circle, refer to
Dimensions 199
Turn signal indicators 56
Ð replacing the bulbs 185
U
Underbody protection,
refer to Caring for your
vehicle brochureUniform Tire Quality
Grading 173
"Units" 74
Units
Ð average fuel
consumption 74
Ð temperature 74
Universal garage-door
opener, refer to
Integrated universal
remote control 96
Universal remote
control 96
Unlock code 152
Unlocking
Ð engine hood 177
Ð from inside 30
Ð from outside 27
"Update services" 165
V
Valve stem seal caps 188
Vehicle
Ð battery 188
Ð care, refer to Caring for
your vehicle brochure
Ð dimensions 199
Ð loading 108
Ð parking 50
Ð washing, refer to Caring
for your vehicle brochure
Ð weights 200
Vehicle jack 187
Vehicle position 115
"Vehicle settings" 38
Ventilation 94
Ð draft-free 94
Ð front 94
Ð rear 94
Ventilation while parked 94
"Vent settings" 92
Vents of the automatic
climate control 90
Voice command system 20
Voice instructions for
navigation system 124
Ð muting 125
Ð repeating 125
Ð switching on/off 124
Ð volume 125