2014 BMW 428I XDRIVE COUPE suspension

Updates made after the editorial
deadline
Any updates made after the editorial deadline
for the Owner's Manuals are located in the ap‐
pendix of the printed quick reference for the
vehicle.
For your own safety
Maintenance and repairs
Advanced technology, e.g., the use of modern
materials and high-performance electronics,
requires suitable maintenance and repair
methods.
Therefore, have this work performed only by a
BMW center or a workshop that works accord‐
ing to BMW repair procedures with appropri‐
ately trained personnel.
If this work is not carried out properly, there is
the danger of subsequent damage and related
safety hazards.
Parts and Accessories For your own safety, use genuine parts and ac‐
cessories approved by BMW. When you pur‐
chase accessories tested and approved by
BMW and Genuine BMW Parts, you simultane‐
ously acquire the assurance that they have
been thoroughly tested by BMW to ensure op‐
timum performance when installed on your ve‐
hicle. BMW warrants these parts to be free
from defects in material and workmanship.
BMW will not accept any liability for damage
resulting from installation of parts and acces‐
sories not approved by BMW. BMW cannot
test every product made by other manufactur‐
ers to verify if it can be used on a BMW safely
and without risk to either the vehicle, its opera‐
tion, or its occupants. Genuine BMW Parts,
BMW Accessories and other products ap‐
proved 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 asalarms, radios, amplifiers, radar detectors,
wheels, suspension components, brake dust
shields, telephones, including operation of any
mobile phone from within the vehicle without
using an externally mounted antenna, or trans‐
ceiver equipment, for instance, CBs, walkie-
talkies, ham radios or similar accessories, may
cause extensive damage to the vehicle, com‐
promise 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. Maintenance, re‐
placement, or repair of the emission control
devices and systems may be performed by any
automotive repair establishment or individual
using any certified automotive part.
California Proposition 65 Warning
California laws require us to state the following
warning:
Engine exhaust and a wide variety of automo‐
bile components and parts, including compo‐
nents found in the interior furnishings in a vehi‐
cle, contain or emit chemicals known to the
State of California to cause cancer and birth
defects and reproductive harm. In addition,
certain fluids contained in vehicles and certain
products of component wear contain or emit
chemicals known to the State of California to
cause cancer and birth defects or other repro‐
ductive harm. Battery posts, terminals and re‐
lated accessories contain lead and lead com‐
pounds. Wash your hands after handling. Used
engine oil contains chemicals that have caused
cancer in laboratory animals. Always protect
your skin by washing thoroughly with soap and
water.
Service and warranty
We recommend that you read this publication
thoroughly. Your vehicle is covered by the fol‐
lowing warranties:▷New Vehicle Limited Warranty.▷Rust Perforation Limited Warranty.Seite 7Notes7
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Variable sport steeringThe variable sport steering increases the
steering angle of the front wheels at large
steering wheel angles, e.g., in tight curves or
when parking. Steering becomes more direct.
It also varies the force required to turn the
wheels in accordance with the vehicle speed.
This results in a sporty steering response. In
addition, it becomes easier to steer during
parking and maneuvering.
Driving Dynamics Control The conceptThe Driving Dynamics Control can be used to
adjust the certain characteristics of the vehicle.
Various programs can be selected for this pur‐
pose. The Driving Dynamics Control and the
DSC OFF buttons can each be used to activate
a program.
Operating the programsPress the buttonProgramDSC OFF
TRACTIONSPORT+
SPORT
COMFORT
ECO PRO
Automatic program change
The system automatically switches to COM‐
FORT in the following situations:
▷Failure of DSC Dynamic Damping Control.▷The vehicle has a flat tire.▷When activating cruise control in TRAC‐
TION or DSC OFF mode.DSC OFF
When DSC OFF, refer to page 115, is active,
driving stability is limited during acceleration
and when driving in bends.
TRACTION When TRACTION is active, the vehicle has
maximum traction on loose road surfaces. DTC
Dynamic Traction Control, refer to page 116, is
activated. Driving stability is limited during ac‐
celeration and when driving in bends.
SPORT+
Sporty driving with optimized chassis and
adapted engine control with limited driving sta‐
bilization.
Dynamic Traction Control is switched on.
The driver handles several of the stabilization
tasks.
Activating SPORT+ Press the button repeatedly until
SPORT+ appears in the instrument
cluster and the DSC OFF indicator lamp lights
up.
Automatic program change When activating cruise control, the program
automatically switches to SPORT mode.
Indicator/warning lamps
SPORT+ is displayed in the instrument cluster.
The DSC OFF indicator lamp lights up:
Dynamic Traction Control is activated.
SPORT Consistently sporty tuning of the suspension
and engine control for greater driving agility
with maximum driving stabilization.
The program can be configured to individual
specifications. The configuration is stored for
the remote control currently in use.Seite 117Driving stability control systemsControls117
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RSC – Run-flat tires
Run-flat tires, refer to page 188, are labeled
with a circular symbol containing the letters
RSC marked on the sidewall.
M+S Winter and all-season tires with better cold
weather performance than summer tires.
Tire tread Summer tires
Do not drive with a tire tread depth of less than
0.12 in/3 mm.
There is an increased danger of hydroplaning if
the tread depth is less than 0.12 in/3 mm.
Winter tires
Do not drive with a tire tread depth of less than
0.16 in/4 mm.
Below a tread depth of 0.16 in/4 mm, tires are
less suitable for winter operation.
Minimum tread depth
Wear indicators are distributed around the
tire's circumference and have the legally re‐
quired minimum height of 0.063 in/1.6 mm.
They are marked on the side of the tire with
TWI, Tread Wear Indicator.
Tire damage
General information Inspect your tires often for damage, foreign
objects lodged in the tread, and tread wear.
Notes Driving over rough or damaged road surfaces,
as well as debris, curbs and other obstacles can cause serious damage to wheels, tires and
suspension parts. This is more likely to occur
with low-profile tires, which provide less cush‐
ioning between the wheel and the road. Be
careful to avoid road hazards and reduce your
speed, especially if your vehicle is equipped
with low-profile tires.
Indications of tire damage or other vehicle de‐
fects:▷Unusual vibrations during driving.▷Unusual handling such as a strong ten‐
dency to pull to the left or right.
Damage can, e. g., be caused by driving over
curbs, road damage, or similar things.
In case of tire damage
If there are indications of tire damage, re‐
duce your speed immediately and have the
wheels and tires checked right away; other‐
wise, there is the increased risk of an accident.
Drive carefully to the nearest service center. If
necessary, have the vehicle towed.
Otherwise, tire damage can be life-threatening
for vehicle occupants and other traffic partici‐
pants.◀
Repair of tire damage
For safety reasons, the manufacturer of
your vehicle recommends that you do not have
damaged tires repaired; they should be re‐
placed. Otherwise, damage can occur as a re‐
sult.◀
Seite 186MobilityWheels and tires186
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