octane BMW 3 SERIES SPORTS WAGON 2015 F31 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 188MobilityFuel188
Online Edition for Part no. 01 40 2 960 493 - II/15

Lights and bulbs 213
Light switch 93
Load 174
Loading 173
Lock, door 39
Locking/unlocking via door lock 39
Locking/unlocking with re‐ mote control 37
Locking, automatic 45
Locking, settings 45
Lock, power window 48
Locks, doors, and win‐ dows 64
Low beams 93
Low beams, automatic, refer to High-beam Assistant 95
Lower back support 53
Low-Sulfur Diesel 189
Luggage rack, see Roof- mounted luggage rack 175
Lumbar support 53
M
Maintenance 210
Maintenance require‐ ments 210
Maintenance, service require‐ ments 84
Maintenance system, BMW 210
Make-up mirror 157
Malfunction displays, see Check Control 79
Manual air distribu‐ tion 147, 150
Manual air flow 147, 150
Manual mode, Steptronic transmission 75
Manual operation, door lock 39
Manual operation, exterior mirrors 59
Manual operation, fuel filler flap 186 Manual operation, Park Dis‐
tance Control PDC 134
Manual operation, rearview camera 137
Manual operation, Side View 139
Manual operation, Top View 140
Manual transmission 73
Marking on approved tires 198
Marking, run-flat tires 199
Master key, refer to Remote control 34
Maximum cooling 149
Maximum speed, display 86
Maximum speed, winter tires 199
Measure, units of 91
Medical kit 225
Memory, seat, mirror 57
Menu, EfficientDynamics 180
Menu in instrument clus‐ ter 87
Menus, operating, iDrive 18
Menus, refer to iDrive operat‐ ing concept 20
Messages, see Check Con‐ trol 79
Microfilter 148, 151
Minimum tread, tires 197
Mirror 58
Mirror memory 57
Mobile communication devi‐ ces in the vehicle 171
Mobility System 199
Modifications, technical, refer to Safety 7
Moisture in headlight 213
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 55
Neck restraints, rear, refer to Head restraints 56
Neutral cleaner, see wheel cleaner 232
New wheels and tires 198
Nylon rope for tow-starting/ towing 228
O OBD Onboard Diagnosis 211
OBD, see OBD Onboard Di‐ agnosis 211
Obstacle marking, rearview camera 137
Octane rating, refer to Rec‐ ommended fuel grade 188
Odometer 83
Office, see user's manual for Navigation, Entertainment
and Communication
Oil 206
Oil, adding 207
Oil additives 208
Oil change 208
Oil change interval, service requirements 84
Oil filler neck 207
Oil types, alternative 208
Oil types, approved 208
Old batteries, disposal 222
On-board computer 87
Onboard monitor, refer to Control Display 18
Onboard vehicle tool kit 212
Opening/closing via door lock 39
Opening and closing 34 Seite 245Everything from A to ZReference245
Online Edition for Part no. 01 40 2 960 493 - II/15