Page 98 of 186

98n
ASC+T/DSC
*
Indicator lamp
The indicator lamp in the instru-
ment cluster goes out shortly 
after you switch on the ignition. 
Refer to page 21.
Indicator lamp flashes:
The system is active and governs drive 
torque and braking force.
If the indicator lamp fails to go out after 
the engine is started, or if it comes on 
during normal driving:
There is a system malfunction or the 
system was deactivated with the 
button. You can still drive the vehicle 
normally without ASC+T/DSC. 
Please consult your BMW center for 
repairs.
To deactivate the systemPress the button, the indicator lamp 
lights up and remains on continuously.
Depending on equipment options, the 
button is marked with ASC or DSC.
With deactivated ASC+T/DSC you are 
driving with conventional, unregulated 
torque transfer.
In the following exceptional situations, 
it may be effective to deactivate the 
ASC+T/DSC for a brief period:
>When rocking the vehicle or starting 
off in deep snow or on loose surfaces
>When driving with snow chains.390us728
To reactivate the systemPress the button again; the indicator 
lamp goes out.
The laws of physics cannot be 
repealed, even with ASC+T/DSC. 
An appropriate driving style always 
remains the responsibility of the driver. 
Do not use the extra safety margins 
furnished by these systems as an 
excuse for taking unnecessary risks.< Dynamic Brake Control (DBC)
*
DBC is an integral component of the 
DSC system.
The system responds to sudden, high-
intensity applications of force to the 
brake pedal by automatically braking 
the vehicle with maximum boost to 
achieve the shortest possible braking 
distances during "panic stops." This 
system exploits all the benefits of ABS. 
Do not reduce the pressure exerted 
against the brake pedal until the 
braking maneuver has been completed. 
DBC is deactivated when you release 
the brake pedal. 
     
        
        Page 159 of 186

159n
OverviewControlsMaintenanceRepairsDataIndex
Changing a wheel16. Wheels with hub covers: 
Position the hub cover and press it 
on tightly
17. If equipped with lug bolt covers: 
Align the arrow on the cover with 
the line in the wheel and press the 
cover into place
18. Check and correct the tire inflation 
pressure at the earliest opportunity.
For vehicles with Tire Pressure 
Monitor (RDC)
*:
After mounting the spare tire or 
correcting the inflation pressure, 
reactivate the system. Refer to 
page 99.
The vehicle jack is designed for 
changing tires 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 continued safety, have the 
lug bolts checked with a calibrated 
torque wrench [torque specification 
72 lb-ft (100 Nm)] at the earliest 
opportunity.< 
When storing the wheel, take care to 
ensure that you do not damage the 
retaining pin in the spare tire recess.
If light-alloy wheels other than original 
BMW light-alloy wheels have been 
mounted, it may be necessary to use 
different lug bolts for those wheels.
Replace the defective tire as soon as 
possible and have the new wheel/tire 
balanced.
Protect valve inserts against dirt using 
screw-on valve stem caps. Dirty valve 
stems frequently lead to slow pressure 
loss.
Size 255/40 R17 94 W
* tires on 
the rear axle:
In the event of a puncture or other tire 
failure, it may be necessary to mount 
the spare tire of different size at the 
rear. This tire is suitable for use in all 
load and speed ranges. Nevertheless, 
you should remount a tire of the correct 
size as soon as possible.<  
     
        
        Page 168 of 186
168n
BMW 525i/sport wagon BMW 530i BMW 540i/sport wagon
Displacement
Number of cylinderscu in (cm
3) 152.2 (2,494)
6181.8 (2,979)
6268.4 (4,398)
8
Maximum output
at engine speedhp
rpm184
6,000225
5,900290
5,400
Maximum torque
at engine speedIb ft (Nm)
rpm175 (236)
3,500214 (289)
3,500324 (440)
3,600
Compression ratioe10.5 10.2 10.0
Stroke
Borein (mm)
in (mm)2.95 (75.0)
3.31 (84.0)3.53 (89.6)
3.31 (84.0)3.26 (82.7)
3.62 (92.0)
Fuel-injection system
Digital electronic engine-management system
Engine specifications 
     
        
        Page 182 of 186

Everything from A to ZSummer tires135 
Sun blind cover112 
Sunroof46 
Switching off the engine68 
Switch-on times for parked-
car ventilation90 
Symbols8 T 
Tachometer81 
Tail lamps154 
bulb replacement154t 
Tailgate 
manual operation39 
manual release39 
opening from the 
inside40 
opening from the 
outside39 
Technical 
modifications10, 145 
Telephone hookup117 
Temperature display80, 86 
Temperature gauge82 
Temperature 
layering106, 111 
Third brake lamp155 Through-loading 
system119 
Tilt alarm sensor42, 43 
avoiding unintentional 
alarms44 
deactivate35 
Tilt function, passenger-side 
mirror55 
Time 
calling up88 
changing88 
of arrival, estimated93 
Timer88 
for additional information 
refer to the "Owner's 
Manual for Onboard 
Computer" 
Tire 
change157t 
damage133t 
inflation pressure26, 133 
pressure 
monitoring99, 133 
renewal134 
tread133 
Tire inflation pressure26 
Tire Pressure Monitor 
(RDC)99 
Tire Quality Grading135 
Tools150t Torque168 
Tow fittings163t 
Towing the vehicle163t 
Track169 
Traction control system, 
refer to ASC+T/DSC 
Transmission69, 70, 73 
Transmitter key32 
Transporting children 
safely61 
Tread depth, tires133 
Trip odometer80 
Trunk lid 
refer to luggage 
compartment lid38 
Trunk, refer to luggage 
compartment42 
Turn signal 
bulb replacement152t 
Turn signal indicator76 
Turning circle169 
U 
Uniform Tire Quality Grading 
(UTQR)135 
Universal Transmitter113 
Use antifreeze, 
radiator142t 
Used batteries, 
disposal160t Used oils, disposal141t 
V 
Vacuum cleaner, attach118 
Valve caps159 
Vehicle Memory64 
Ventilation104, 106, 111 
draft-free106, 111 
in the rear106 
Ventilation while 
parked112 
for more information on 
ventilation with vehicle 
stationary, refer to the 
"Owner's Manual for 
Onboard Computer" 
Viscosity ratings, oils141 W
 
Warm feet Ð cool 
head106, 111 
Warning and indicator 
lamps19 
Warning lamps19t 
Warning messages83t 
Warning triangle23