
Mobility
 219Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
When refueling, insert the filler nozzle com-
pletely into the filler pipe. Avoid raising the filler 
nozzle during refueling, otherwise this leads to
>premature pump shutoff
>a reduced efficiency of the fuel-vapor 
recovery system.
The fuel tank is full when the filler nozzle clicks 
off the first time.
Fuel tank capacity
Approx. 18.5 US gal/70 liters, including the 
reserve capacity of approx. 2.1 US gal/8 liters.
550i: approx. 2.6 US gal/10 liters reserve 
capacity.
Refuel as soon as possible once your 
cruising range falls below 30 miles/
50 km, otherwise engine functions are not 
ensured and damage can occur.<
Fuel filler cap
Closing
Fit the cap and turn it clockwise until you clearly 
hear a click.
Do not crush the band attached to the 
cap; otherwise, the cap may not properly 
seal and fuel vapors can escape.<
A message
* is displayed if the cap is loose or 
missing.
Fuel specifications
Do not use leaded gasoline, otherwise 
permanent damage to the catalytic con-
verter will result. 
Do not use E85, i.e. fuel that consists of 85% 
ethanol, or Flex Fuel. Otherwise permanent 
damage to the engine and the fuel supply sys-
tem will result.<
Required fuel
Super Premium Gasoline/AKI 91
This gasoline is highly recommended.
However, you may also use gasoline with less 
AKI. The minimum AKI Rating is 87.
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 affect on the engine life.
Do not use gasoline below the specified 
minimum quality, otherwise engine dam-
age can result.<
Use high-quality brands
Field experience has indicated significant dif-
ferences in fuel quality: volatility, composition, 
additives, etc., among gasolines offered for sale 
in the United States and Canada. Fuels contain-
ing up to and including 10 % ethanol or other 
oxygenates with up to 2.8 % oxygen by weight, 
that is, 15 % MTBE or 3 % methanol plus an 
equivalent amount of co-solvent, will not void 
the applicable warranties with respect to 
defects in materials or workmanship.
The use of poor-quality fuels may result in 
drivability, starting and stalling problems 
especially under certain environmental condi-
tions such as high ambient temperature and 
high altitude. 
Should you encounter drivability problems 
which you suspect could be related to the fuel 
you are using, we recommend that you respond 
by switching to a recognized high-quality brand 
such as gasoline that is advertised as Top Tier 
Detergent Gasoline. 
Failure to comply with these recommendations 
may also result in unscheduled maintenance.< 

Everything from A to Z
264
Everything from A to Z
Index
"..." Identifies Control Display 
texts used to select 
individual functions, and 
indicates where to find them 
in the text.
A
ABS Antilock Brake 
System91
– indicator lamp94
ACC, refer to Active cruise 
control70
Accepted calls202
Accessories6
Accident, refer to Emergency 
request247
Acoustic signal, refer to Check 
Control83
Activated-charcoal filter for 
automatic climate 
control118
"Activation time" for parked-
car ventilation119
Active cruise control70
– indicator lamp74
– radar sensors74
– selecting distance72
– warning lamps74
Active front head restraints49
Active seat52
Active seat ventilation52
Active steering99
– warning lamp100
Adapter for spare key28
Adaptive brake assistant92
Adaptive brake lamps, refer to 
Brake force display100
Adaptive Head Light110
"Add digits" for mobile 
phone202Additives
– coolant233
– engine oil, refer to Approved 
engine oils233
"Address book" for navigation 
system151
Address for navigation
– deleting153
– entering144,147
– selecting152
– storing151
– storing current position152
"Add to address book"151
"Add to destination 
list"147,148
Adjusting active backrest 
width47
Adjusting interior 
temperature115
Adjusting the tone during 
audio operation, refer to 
Tone control169
Adjusting thigh support46
"After door opened"48
"After unlocking"48
Airbags100
– indicator/warning lamp102
– indicator lamp for front 
passenger airbags101
– sitting safely45
Air distribution
– automatic115
– manual116
Airing, refer to Ventilation118
Air recirculation
– AUC Automatic 
recirculated-air control117
– recirculated-air mode117
"Air recirculation on / off"55
Air supply, automatic climate 
control114
Air volume116AKI, refer to Fuel quality219
Alarm system37
– avoiding unintentional 
alarms38
– interior motion sensor38
– switching off alarm37
– switching off tilt alarm 
sensor and interior motion 
sensor38
– tilt alarm sensor38
"All channels"180
"All doors"30
All-season tires, refer to 
Winter tires228
"All stations", calling up with 
radio172,176
All-wheel drive, refer to 
xDrive93
Alterations, technical, refer to 
For your own safety5
Altering stretch of road160
"AM", reception 
range169,172
Antenna, refer to Caring for 
your vehicle brochure
Antenna for mobile phone194
Antifreeze
– coolant233
– washer fluid69
Antilock Brake System 
ABS91
Anti-theft alarm system, refer 
to Alarm system37
Anti-theft system, refer to 
Central locking system29
Approved axle loads, refer to 
Weights257
Approved engine oils233
Approved gross vehicle 
weight, refer to Weights257
Armrest, refer to Center 
armrest, rear127 

Everything from A to Z
270 Electric steering wheel 
adjustment54
Electronic brake-force 
distribution91
Electronic oil level check232
Emergency operation, refer to 
Manual operation
– door lock32
– driver's door32
– fuel filler door218
– luggage compartment lid34
– tailgate35
– transmission lock, automatic 
transmission65
Emergency operation, refer to 
Moving manually
– glass sunroof42
– panorama glass sunroof44
Emergency release for 
luggage compartment lid in 
cargo bay34
Emergency request247
Emergency services, refer to 
Roadside Assistance248
"Enabled services"215
"Enable services"215
"End call"202
Energy-conscious driving, 
refer to Energy Control79
Energy Control79
Engine
– breaking-in134
– data254
– overheated, refer to Coolant 
temperature78
– speed254
– starting62
– starting, with comfort 
access38
– switching off62
Engine compartment231
Engine coolant233Engine oil
– adding233
– additives, refer to Approved 
engine oils233
– approved engine oil233
– checking oil level232
– electronic oil level check232
– interval between changes, 
refer to Service 
requirements81
– oil change233
– oil grades, refer to Approved 
engine oils233
"Engine oil level"232
Engine output, refer to Engine 
data254
Engine overheating, refer to 
Coolant temperature78
Engine speed, refer to Engine 
data
254
Engine starting, refer to 
Starting engine62
"Enter address"144,151
Entering destination via town/
city name145
Entering intersection, 
navigation146
Entering the 
address144,147
Entering town/city for 
navigation145
Entering zip code for 
navigation145
"Entertainment"168
Entertainment sound output 
on/off169
Entry map for destination148
Environmentally friendly 
driving, refer to Energy 
Control79
"Equalizer", refer to Tone 
control171
Equalizer, refer to Tone 
control171
"ESN"179ESP Electronic Stability 
Program, refer to DSC 
Dynamic Stability 
Control92
Event Data Recorders236
Exhaust system, refer to Hot 
exhaust system135
Exterior mirrors53
– adjusting53
– automatic dimming 
feature54
– automatic heating53
– folding in and out53
– tilting down passenger-side 
exterior mirror53
External audio device124
Eye for tow-starting and 
towing, refer to Tow 
fitting249
F
"Fader", refer to Tone 
control170
Fader, refer to Tone 
control170
Failure messages, refer to 
Check Control83
False alarm
– refer to Avoiding 
unintentional alarms38
– refer to Switching off 
alarm37
Fastening safety belts, refer to 
Safety belts50
– warning lamp50
Fastest route for 
navigation154
"Fast route" for 
navigation154
"Favorites", calling up with 
radio176
Filler neck for washer fluid69
Filter, refer to Microfilter/
activated-charcoal filter118
Fine wood, refer to Caring for 
your vehicle brochure