2015 BMW Z4 Grade

Fuel recommendationVehicle equipmentThis chapter describes all series equipment as
well as country-specific and special equipment
offered for this model series. Therefore, it also
describes equipment that may not be found in
your vehicle, for instance due to the selected
special equipment or the country version. This
also applies to safety-related functions and
systems.
When using the features and systems descri‐
bed here, adhere to local regulations.
Gasoline For the best fuel economy, the gasoline should
be sulfur-free or very low in sulfur content.
Do not use fuels that are labeled at the fuel
pump as containing metals.
Only refuel with lead-free gasoline with‐
out metal additives
Do not refuel with leaded gasoline or gasoline
with metal additives, e. g., manganese or iron;
otherwise, the catalytic converter and other
components will be permanently damaged.◀
Fuels with a maximum ethanol content of
10 %, i.e., E10, may be used for refueling.
The ethanol should fulfill the following quality
standards:
US: ASTM 4806–xx
CAN: CGSB-3.511–xx
xx: always adhere to the currently applicable
standard.
Do not refuel with ethanol E85
Do not refuel with E85, i.e., fuel with an
ethanol content of 85 %, or with Flex Fuel, as
this would damage the engine and fuel supply
system.◀The engine is knock controlled. Therefore, you
can refuel with different recommended fuel
grades.
Recommended fuel grade
BMW recommends AKI 91.
Minimum fuel grade
BMW recommends AKI 89.
Minimum fuel grade
Do not fill up with fuel below the speci‐
fied minimum quality; otherwise, the engine
may not run properly.◀
If you use gasoline with this minimum AKI rat‐
ing, the engine may produce knocking sounds
when starting at high outside temperatures.
This has no effect on the engine life.
Minimum fuel grade
The use of poor-quality fuels may result
in harmful engine deposits or damage. Addi‐
tionally, problems relating to drivability, start‐
ing and stalling, especially under certain envi‐
ronmental conditions such as high ambient
temperature and high altitude, may occur.
If drivability problems are encountered, we rec‐
ommend switching to a high quality gasoline
brand and a higher octane grade — AKI num‐
ber — for a few tank fills. To avoid harmful en‐
gine deposits, it is highly recommended to
purchase gasoline from BP or Top Tier retail‐
ers.
Failure to comply with these recommendations
may result in the need for unscheduled main‐
tenance.◀Seite 226MobilityFuel recommendation226
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R: radial tire code
17: rim diameter in inches
91: load rating, not for ZR tires
V: speed rating, before the R on ZR tires
Speed letter
Q = up to 100 mph/160 km/h
T = up to 118 mph/190 km/h
H = up to 131 mph/210 km/h
V = up to 150 mph/240 km/h
W = up to 167 mph/270 km/h
Y = up to 186 mph/300 km/h
Tire Identification Number Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
DOT code:
DOT xxxx xxx 0313
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
0313: tire age
Tire age The tire manufacturing date is contained in the
tire identification mark: DOT ... 0313 means
that the tire was manufactured in the week 3 of
2,013.
BMW recommends that you replace all tires af‐
ter 6 years at most, even if some tires may last
for 10 years.
Uniform Tire Quality Grading Quality grades can be found where applicable
on the tire sidewall between tread shoulder
and maximum section width. For example:
Treadwear 200 Traction AA
Temperature A
DOT Quality Grades
TreadwearTraction AA A B C
Temperature A B C
All passenger car tires must conform to
Federal Safety Requirements in addition
to these grades.◀
Treadwear The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov‐
ernment test course. For example, a tire graded 150 would wear one and one-half
(11/2) times as well on the government course
as a tire graded 100. The relative performance of tires depends upon the actual conditions of
their use, however, and may depart signifi‐
cantly from the norm due to variations in driv‐
ing habits, service practices and differences in
road characteristics and climate.
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 surfaces 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,
hydroplaning, 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.
Sustained high temperature can cause the ma‐
terial 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 passengerSeite 232MobilityWheels and tires232
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car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B
and 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
possible tire failure.◀
RSC – Run-flat tires The symbol identifying run-flat tires is a circle
with the letters RSC on the sidewall, refer to
page 234.
M+S
Winter and all-season tires.
These have better winter properties than
summer tires.
XL
Designation for specially reinforced 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
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.
Inspect your tires often for damage, foreign
objects lodged in the tread, and tread wear.
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.
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 next service center or tire
shop.
Seite 233Wheels and tiresMobility233
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Data, technical, dimen‐sions 264
Data, technical, filling capaci‐ ties 265
Data, technical, weights 264
Date, date format 79
Date, setting 79
Daytime running lights 88
DBC Dynamic Brake Con‐ trol 101
DCC, refer to Cruise con‐ trol 105
Defogging windows 111
Defroster, rear win‐ dow 111, 114
Defrosting windows 111
Destination entry via the ad‐ dress book 144
Destination guidance 151
Destination guidance with in‐ termediate destinations 149
Destination input, naviga‐ tion 142
Digital clock 73
Digital compass 118
Digital radio 165
Dimensions 264
Dimming mirrors 53
Directional indicators, refer to Turn signals 62
Display lighting, refer to In‐ strument lighting 90
Display, refer to Control Dis‐ play 20
Displays and controls 14
Displays, care 260
Displays, cleaning 260
Displays, refer to Instrument cluster 16
Disposal, coolant 241
Disposal, remote control bat‐ tery 41
Disposal, vehicle battery 250
Distance control, refer to PDC 107 Divided screen view, split
screen 24
Door key, refer to Remote control with integrated
key 32
Door lock 37
Doors, manual operation 37
Doors, unlocking and locking, confirmation signals 36
Doors, unlocking and locking from the inside 37
Doors, unlocking and locking from the outside 34
DOT Quality Grades 232
Draft-free ventila‐ tion 111, 115
Drive-off assistant 104
Drive-off assistant, refer to DSC 101
Driving instructions, break- in 130
Driving notes, general 130
Driving stability control sys‐ tems 101
Driving tips 130
DSC Dynamic Stability Con‐ trol 101
DTC Dynamic Traction Con‐ trol 102
DTMF suffix dialing 200
DVD/CD 172
DVDs, storing 177
DVD, video 174
Dynamic Brake Control DBC 101
Dynamic destination guid‐ ance 158
Dynamic Driving Control 102
Dynamic Stability Control DSC 101
Dynamic Traction Control DTC 102 E
EBV electronic brake-force distribution 101
EfficientDynamics, refer to Saving fuel 134
Electrical fault, 7-gear auto‐ matic transmission 71
Electrical malfunction, door lock 37
Electrical malfunction, driver's door 37
Electrical malfunction, fuel filler flap 224
Electric seat adjustment 49
Electronic brake-force distri‐ bution 101
Electronic engine oil level check 238
Electronic Stability Program ESP, refer to DSC 101
Emergency operation, fuel filler flap, unlocking man‐
ually 224
Emergency Request 251
Emergency unlocking, trunk lid, from the inside 39
Energy, saving, Automatic Start/Stop function 59
Engine compartment 237
Engine coolant, refer to Cool‐ ant 241
Engine oil, adding 240
Engine oil additives 240
Engine oil, checking the level 238
Engine oil temperature 74
Engine oil types, alterna‐ tive 240
Engine oil types, ap‐ proved 240
Engine, overheating, refer to Coolant temperature 74
Engine start, Help 252
Engine, starting 58 Seite 277Everything from A to ZReference277
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