2014 BMW 4 SERIES CONVERTIBLE winter tires

sudden tire failure. The grade C corresponds
to a level of performance which all passenger
car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades Band
A represent higher levels of performance on
the laboratory test wheel than the minimum re‐
quired by law.
Temperature grade for this tire
The temperature grade for this tire is es‐
tablished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla‐
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.
If necessary, have the vehicle towed.◀
RSC – Run-flat tires
Run-flat tires, refer to page 196, 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 treadSummer 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 tire 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.
Hints
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 while 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.
Seite 194MobilityWheels and tires194
Online Edition for Part no. 01 40 2 956 860 - X/14

Retreaded tires
Possibly substantial variations in the de‐
sign and age of the tire casing structures can
limit service life and have a negative impact on
road safety.◀
Winter tires
Winter tires are recommended for operating on
winter roads.
Although so-called all-season M+S tires pro‐
vide better winter traction than summer tires, they do not provide the same level of perform‐
ance as winter tires.
Maximum speed of winter tires If the maximum speed of the vehicle is higher
than the permissible speed for the winter tires,
then a respective symbol is displayed in your
field of vision. You can obtain this sign from the
tire specialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for
the respective winter tires; otherwise, tire dam‐
age and accidents can occur.◀
Run-flat tires If you are already using run-flat tires, for your
own safety you should replace them only with
the same kind. No spare tire is available in the
case of a flat tire. Your service center will be
glad to advise you.
Rotating wheels between axlesDifferent wear patterns can occur on the frontand rear axles depending on individual driving
conditions. The tires can be rotated between
the axles to achieve even wear. Your service
center will be glad to advise you. After rotating,
check the tire pressure and correct if needed.
Rotating the tires is not permissible on vehi‐
cles with different tire sizes on the front and
rear axles, i.e. when using different types of
tires.Storage
Store wheels and tires in a cool, dry place with
as little exposure to light as possible.
Always protect tires against all contact with oil,
grease and fuels.
Do not exceed the maximum tire inflation pres‐
sure indicated on the side wall of the tire.
Run-flat tires Label
RSC label on the tire sidewall.
The wheels consist of tires that are self-sup‐
porting, to a limited degree, and possibly spe‐
cial rims.
The support of the sidewall allows the tire to
remain drivable to a restricted degree in the
event of a tire inflation pressure loss.
Follow the instructions for continued driving
with a flat tire.
Changing run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire.
Your service center will be glad to advise you.
Snow chains
Fine-link snow chains
Only certain types of fine-link snow chains
have been tested by the manufacturer of the
vehicle, classified as road-safe and approved.
Seite 196MobilityWheels and tires196
Online Edition for Part no. 01 40 2 956 860 - X/14

CareVehicle features and optionsThis chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems.
Car washes
General information
Regularly remove foreign objects such as
leaves in the area below the windshield when
the hood is raised.
Wash your vehicle frequently, particularly in
winter. Intense soiling and road salt can dam‐
age the vehicle.
Hints Steam jets or high-pressure washers
When using steam jets or high-pressure
washers, hold them a sufficient distance away
and use a maximum temperature of
140 ℉/60 ℃.
Holding them too close or using excessively
high pressures or temperatures can cause
damage or preliminary damage that may then
lead to long-term damage.
Follow the user's manual for the high-pressure
washer.◀
Cleaning sensors/cameras/hardtop with
high-pressure washers
When using high-pressure washers, do not
spray the seals of the lowerable hardtop, sen‐
sors and cameras external to the vehicle, e.g.,
Park Distance Control, for extended periods oftime and only from a distance of at least
12 in/30 cm.◀
Automatic car washes
Hints Do not use high pressure washing sys‐
tems
With washing systems operating at high pres‐
sures and nozzle positions close to the win‐
dows, drops of water can penetrate.◀▷Give preference to cloth car washes or
those that use soft brushes in order to
avoid paint damage.▷Make sure that the wheels and tires are not
damaged by the transport mechanisms.▷Fold in the exterior mirrors; otherwise, they
may be damaged, depending on the width
of the vehicle.▷Deactivate the rain sensor, refer to
page 70, to avoid unintentional wiper acti‐
vation.▷In some cases, an unintentional alarm can
be triggered by the interior motion sensor
of the alarm system. Follow the instruc‐
tions on avoiding an unintentional alarm,
refer to page 44.
Guide rails in car washes
Avoid car washes with guide rails higher
than 4 in/10 cm; otherwise, the vehicle body
could be damaged.◀
Before driving into a car wash In order to ensure that the vehicle can roll in a
car wash, take the following steps:
Steptronic transmission:
1.Drive into the car wash.2.Engage selector lever position N.Seite 220MobilityCare220
Online Edition for Part no. 01 40 2 956 860 - X/14

Low beams 91
Low beams, automatic, refer to High-beam Assistant 93
Lower back support 53
Lumbar support 53
M
Maintenance 204
Maintenance require‐ ments 204
Maintenance, service require‐ ments 82
Maintenance system, BMW 204
Make-up mirror 157
Malfunction displays, see Check Control 77
Manual air distribu‐ tion 146, 150
Manual air flow 146, 150
Manual mode, Steptronic transmission 73
Manual operation, door lock 39
Manual operation, exterior mirrors 58
Manual operation, fuel filler flap 184
Manual operation, Park Dis‐ tance Control PDC 133
Manual operation, rearview camera 136
Manual operation, Side View 138
Manual operation, Top View 139
Marking on approved tires 195
Marking, run-flat tires 196
Master key, refer to Remote control 34
Maximum cooling 149
Maximum speed, display 83
Maximum speed, winter tires 196 Measure, units of 89
Medical kit 216
Memory, seat, mirror 57
Menu, EfficientDynamics 177
Menu in instrument clus‐ ter 85
Menus, operating, iDrive 18
Menus, refer to iDrive operat‐ ing concept 20
Messages, see Check Con‐ trol 77
Microfilter 147, 150
Minimum tread, tires 194
Mirror 58
Mirror memory 57
Mobile communication devi‐ ces in the vehicle 169
Modifications, technical, refer to Safety 7
Moisture in headlight 207
Monitor, refer to Control Dis‐ play 18
Mounting of child restraint systems 61
Multifunction steering wheel, buttons 14
N Navigation, see user's manual for Navigation, Entertain‐
ment and Communication
Neck restraints, front, refer to Head restraints 56
Neck warmer 54
Neutral cleaner, see wheel cleaner 222
New wheels and tires 195
Nylon rope for tow-starting/ towing 218
O OBD Onboard Diagnosis 204
OBD, see OBD Onboard Di‐ agnosis 204 Obstacle marking, rearview
camera 136
Octane rating, refer to Rec‐ ommended fuel grade 186
Odometer 81
Office, see user's manual for Navigation, Entertainment
and Communication
Oil 200
Oil, adding 201
Oil additives 201
Oil change 202
Oil change interval, service requirements 82
Oil filler neck 201
Oil types, alternative 202
Oil types, approved 202
Old batteries, disposal 213
Onboard monitor, refer to Control Display 18
Onboard vehicle tool kit 206
Opening/closing via door lock 39
Opening and closing 34
Opening and closing, without remote control 39
Opening and closing, with re‐ mote control 37
Operating concept, iDrive 18
Optional equipment, standard equipment 6
Outside air, refer to Auto‐ matic recirculated-air con‐
trol 149
Overheating of engine, refer to Coolant temperature 81
P Paint, vehicle 221
Parallel parking assistant 140
Park Distance Control PDC 132
Parked-car ventilation 151
Parked vehicle, condensa‐ tion 170 Seite 235Everything from A to ZReference235
Online Edition for Part no. 01 40 2 956 860 - X/14

TRACTION, driving dynam‐ics 120
Transmission lock, electronic unlocking 74
Transmission, Steptronic transmission 72
Transporting children safely 61
Tread, tires 194
Trip computer 86
Triple turn signal activa‐ tion 68
Trip odometer 81
Trunk, cargo area partition 48
Trunk lid closing 40
Trunk lid, emergency unlock‐ ing 41
Trunk lid, hotel function 40
Trunk lid opening 40
Trunk lid via remote con‐ trol 38
Turning circle 226
Turning circle lines, rearview camera 136
Turn signals, operation 68
U Unintentional alarm 44
Units of measure 89
Universal remote control 153
Unlock button, Steptronic transmission 72
Unlocking/locking via door lock 39
Unlocking/locking with re‐ mote control 37
Unlocking, settings 42
Updates made after the edito‐ rial deadline 6
Upholstery care 222
USB interface 158
V Vanity mirror 157 Variable sport steering 121
Vehicle battery 212
Vehicle battery, replac‐ ing 212
Vehicle, break-in 168
Vehicle care 221
Vehicle features and op‐ tions 6
Vehicle identification num‐ ber 9
Vehicle jack 212
Vehicle paint 221
Vehicle storage 223
Vehicle wash 220
Ventilation 151
Ventilation, refer to Parked- car ventilation 151
VIN, see vehicle identification number 9
Voice activation system 26
W Warning and indicator lamps, see Check Control 77
Warning displays, see Check Control 77
Warning messages, see Check Control 77
Warning triangle 216
Washer fluid 71
Washer nozzles, wind‐ shield 70
Washer system 69
Washing, vehicle 220
Water on roads 169
Weights 227
Welcome lights 91
Wheel base, vehicle 226
Wheel cleaner 222
Wheels, changing 195
Wheels, everything on wheels and tires 188
Wheels, Flat Tire Monitor FTM 104 Wheels, Tire Pressure Moni‐
tor TPM 100
Width, vehicle 226
Wind deflector 48
Window defroster, rear 146, 150
Windows, powered 45
Windshield washer fluid 71
Windshield washer noz‐ zles 70
Windshield washer sys‐ tem 69
Windshield wiper 69
Winter storage, care 223
Winter tires, suitable tires 196
Winter tires, tread 194
Wiper 69
Wiper blades, replacing 206
Wiper fluid 71
Wiper, fold-out position 71
Wiper system 69
Wood, care 222
Word match concept, naviga‐ tion 25
Wrench, see Onboard vehicle tool kit 206
X
xDrive 120
Xenon headlights, bulb re‐ placement 207 Seite 238ReferenceEverything from A to Z238
Online Edition for Part no. 01 40 2 956 860 - X/14