octane BMW X3 2015 F25 Owner's Manual

FuelVehicle 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. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Fuel recommendation Note General fuel quality
Even fuels that conform to the specifica‐
tions can be of low quality. This may cause en‐
gine problems, for instance poor engine start-
up behavior, poor handling and/or poor
performance. Switch gas stations or use a
brand name fuel with a higher octane rating.◀
Gasoline For the best fuel efficiency, the gasoline
should be sulfur-free or very low in sulfur con‐
tent.
Fuels that are marked on the gas pump as con‐
taining metal must not be used.
Refuel only with unleaded gasoline with‐
out metallic additives.
Do not refuel with any leaded gasoline or gaso‐
line with metallic additives, e. g. manganese or
iron, as this can cause permanent damage to
the catalytic converter and other compo‐
nents.◀
Fuels with a maximum ethanol content of
10 %, i. e., E10, may be used for refueling.Ethanol should satisfy the following quality
standards:
US: ASTM 4806–xx
CAN: CGSB-3.511–xx
xx: comply with the current standard in each
case.
Do not use a fuel with a higher percent‐
age of ethanol
Do not use a fuel with a higher ethanol per‐
centage than recommended or one with other
types of alcohol, e.g. M5 to M100; otherwise
this could damage the engine and fuel supply
system.◀
Recommended fuel grade BMW recommends AKI 91.
Minimum fuel grade
BMW recommends AKI 89.
Minimum fuel grade
Do not use any gasoline below the mini‐
mum fuel grade as this may impair engine per‐
formance.◀
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.
Fuel quality
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‐Seite 192MobilityFuel192
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Lights 95
Lights and bulbs 218
Light switch 95
Load 179
Loading 178
Lock, door 39
Locking/unlocking via door lock 39
Locking/unlocking with re‐ mote control 37
Locking, automatic 46
Locking, settings 45
Locking via tailgate 40
Lock, power window 49
Locks, doors, and win‐ dows 65
Low beams 95
Low beams, automatic, refer to High-beam Assistant 97
Lower back support 54
Low-Sulfur Diesel 193
Luggage rack, refer to Roof- mounted luggage rack 180
Lumbar support 54
M
Maintenance 215
Maintenance require‐ ments 215
Maintenance, service require‐ ments 86
Maintenance system, BMW 215
Make-up mirror 162
Malfunction displays, see Check Control 81
Manual air distribu‐ tion 153, 156
Manual air flow 153, 156
Manual brake, refer to Parking brake 70
Manual mode, Steptronic transmission 77
Manual operation, door lock 39 Manual operation, exterior
mirrors 59
Manual operation, fuel filler flap 190
Manual operation, Park Dis‐ tance Control PDC 140
Manual operation, rearview camera 142
Manual operation, Top View 145
Marking on approved tires 203
Marking, run-flat tires 204
Master key, refer to Remote control 34
Maximum cooling 156
Maximum speed, display 88
Maximum speed, winter tires 203
Measure, units of 93
Medical kit 227
Memory, seat, mirror 58
Menu, EfficientDynamics 184
Menu in instrument clus‐ ter 89
Menus, operating, iDrive 18
Menus, refer to iDrive operat‐ ing concept 20
Messages, see Check Con‐ trol 81
Microfilter 154, 157
Minimum tread, tires 202
Mirror 59
Mirror memory 58
Mobile communication devi‐ ces in the vehicle 175
Mobility System 204
Modifications, technical, refer to Safety 7
Moisture in headlight 218
Monitor, refer to Control Dis‐ play 18
Mounting of child restraint systems 62
Moving sun visor 162 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 restraints, rear, refer to Head restraints 57
Neutral cleaner, see wheel cleaner 233
New wheels and tires 202
Nylon rope for tow-starting/ towing 229
O OBD Onboard Diagnosis 216
OBD, see OBD Onboard Di‐ agnosis 216
Obstacle marking, rearview camera 143
Octane rating, refer to Rec‐ ommended fuel grade 192
Odometer 85
Office, see user's manual for Navigation, Entertainment
and Communication
Offroad trips 174
Oil 210
Oil, adding 211
Oil additives 211
Oil change 212
Oil change interval, service requirements 86
Oil filler neck 211
Oil types, alternative 212
Oil types, approved 212
Old batteries, disposal 224
On-board computer 90
On-board computer, refer to On-board computer 90 Seite 247Everything from A to ZReference247
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