2012 BMW 550I XDRIVE GRAN TURISMO winter tires

Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test surfa‐
ces of asphalt and concrete. A tire marked C may
have poor traction performance.
The traction grade assigned to this tire is based
on straight-ahead braking traction tests, and
does not include acceleration, cornering, hydro‐
planing, or peak traction characteristics.
Temperature
The temperature grades are A, the highest, B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sus‐
tained high temperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead to 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 required 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 pos‐
sible tire failure.
If necessary, have the vehicle towed.◀
RSC – Run-flat tires
Run-flat tires, refer to page 269, 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 required
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 ob‐
jects lodged in the tread, and tread wear.
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Recommended tire brands
For each tire size, the manufacturer of your ve‐
hicle recommends certain tire brands. These
can be identified by a star on the tire sidewall.
With proper use, these tires meet the highest
standards for safety and handling.
New tires
Due to technical factors associated with their
manufacture, tires do not achieve their full trac‐
tion potential until after an initial breaking-in pe‐
riod.
Drive conservatively for the first 200 miles/
300 km.
Retreaded tires
The manufacturer of your vehicle does not rec‐
ommend the use of retreaded tires.
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
The manufacturer of your vehicle recommends
winter tires for winter roads or at temperatures
below +45 ℉/+7 ℃.
Although so-called all-season M+S tires do 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 display a corresponding sign in the field of
vision. You can obtain this sign from the tire spe‐
cialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for the
winter tires; otherwise, tire damage and acci‐
dents can occur.◀
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.
Rotating wheels between axles
The manufacturer of your vehicle advises
against swapping wheels between the front and
rear axles.
This can impair the handling characteristics.
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.Seite 268MobilityWheels and tires268
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Locking/unlocking with re‐mote control 34
Locking, automatic 37
Locking, central 33
Locking via tailgate 39
Lock, power window 45
Locks, doors, and win‐ dows 66
Low beams 89
Low beams, automatic, refer to High-beam Assistant 91
Lower back support 51
Luggage rack, refer to Roof- mounted luggage rack 162
Lumbar support 51
M
Maintenance 276
Maintenance require‐ ments 276
Maintenance, service require‐ ments 83
Maintenance system, BMW 276
Malfunction displays, refer to Check Control 79
Malfunction, self-leveling sus‐ pension 110
Manual air distribution 137
Manual air volume 137
Manual brake, refer to Parking brake 69
Manual mode, transmis‐ sion 76
Manual operation, backup camera 128
Manual operation, door lock 37
Manual operation, exterior mir‐ rors 60
Manual operation, fuel filler flap 258
Manual operation, Park Dis‐ tance Control PDC 124 Manual operation, parking
brake 69
Manual operation, Side View 130
Manual operation, Top View 126
Map, destination entry 173
Map in split screen 180
Map view 178
Marking on approved tires 268
Marking, run-flat tires 269
Massage seat, front 52
Master key, refer to Remote control 30
Maximum cooling 138
Maximum speed, winter tires 268
Measure, units of 88
Medical kit 285
Memory for seat, mirrors, steering wheel 59
Menu in instrument cluster 84
Menus, operating, iDrive 16
Menus, refer to iDrive operat‐ ing concept 17
Message list, traffic bulle‐ tins 180
Messages 241
Messages, refer to Check Control 79
Microfilter 139
Minimum tread, tires 266
Mirror 60
Mirror memory 59
Mobile communication devi‐ ces in the vehicle 159
Mobile phone 226
Modifications, technical, refer to Safety 6
Moisture in headlamp 279
Monitor, refer to Control Dis‐ play 16
Mounting of child restraint fix‐ ing systems 63
MP3 player 208 Multi-function hook 153
Multifunction steering wheel, buttons 12
Multimedia 196
Music collection 203
Music search 205
Music, storing 203
N
Navigation 168
Navigation data 182
Neck restraints, front, refer to Head restraints 57
Neck restraints, rear, refer to Head restraints 58
New wheels and tires 267
Night Vision with pedestrian detection 131
Notes 245
Nylon rope for tow-starting/ towing 287
O
OBD Onboard Diagnos‐ tics 277
Obstacle marking, backup camera 129
Odometer 82
Office 238
Oil 273
Oil, adding 273
Oil additives 274
Oil change 274
Oil change interval, service re‐ quirements 83
Oil filler neck 273
Oil level check 273
Oil types, alternative 274
Oil types, approved 274
Old batteries, disposal 282
Onboard Diagnostics OBD 277
Onboard monitor, refer to Control Display 16 Seite 315Everything from A to ZReference315
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Voice activation, mobilephone 234
Voice activation, short com‐ mands 300
Voice activation system 22
Volume, setting 186
W
Warning lamps 79
Warning messages, refer to Check Control 79
Warning triangle 285
Washer fluid 74
Washer fluid reservoir, ca‐ pacity 299
Washer nozzles, wind‐ shield 74
Washer system 73
Washing, vehicle 289
Water on roads 159
Weather Band 190
Weights 298
Welcome lamps 89
Wheel base, vehicle 297
Wheels, changing 267
Wheels, everything on wheels and tires 261
Wheels, Flat Tire Monitor FTM 100
Wheels, Tire Pressure Monitor TPM 97
Width with mirrors, vehi‐ cle 296
Width without mirrors, vehi‐ cle 297
Window defroster, rear 138
Windows, powered 44
Windshield, climate con‐ trol 159
Windshield washer fluid 74
Windshield washer noz‐ zles 74
Windshield washer system 73
Windshield wiper 73 Windshield wipers, fold-out
position 74
Winter storage, care 292
Winter tires, suitable tires 268
Winter tires, tread 266
Wiper blades, replacing 278
Wiper fluid 74
Wiper system 73
Wood, care 291
Word match concept, naviga‐ tion 21
Wrench 278
X
xDrive 108
Xenon headlamps, bulb re‐ placement 279 Seite 319Everything from A to ZReference319
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