Page 67 of 254

Controls
65Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Coolant temperature
A warning lamp will come on if the coolant, and
therefore the engine, becomes too hot. In addi-
tion, a message will appear on the Control
Display.
Check coolant level, refer to page204.
Engine oil temperature*
When the engine is at normal operating
temperature, the engine oil temperature is
between approx. 2107/1006 and approx.
3007/1506.
If the engine oil temperature is too high, a mes-
sage appears on the Control Display.
Fuel gauge
Fuel tank capacity: approx. 14.5 US gallons/
55 liters.
You can find information on refueling
on page192.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
Reserve
Once the fuel level has fallen to the reserve
zone, a message briefly appears on the Control
Display and the cruising range for the remaining
amount of fuel is displayed on the computer.
Under a cruising range of approx. 30 miles/
50 km, the message remains in the Control
Display.
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.<
Computer
Displays in the instrument cluster
Calling up information
Press the button in the turn indicator lever.
The following items of information are dis-
played in the order listed:
>Cruising range
>Average speed
>Average fuel consumption
>Current fuel consumption
*
>No information
To set the corresponding units of measure,
refer to Units of measure on page68.
Page 194 of 254

Refueling
192
Refueling
Always switch off the engine before refu-
eling; otherwise, fuel cannot be added to
the tank and a message will be displayed.<
Take all precautionary measures and
observe all applicable regulations when
handling fuel. Do not carry any spare fuel con-
tainers in your vehicle. They can develop a leak
and cause an explosion or cause a fire in the
event of an accident.<
Fuel filler flap
Opening
1.Open fuel filler flap. To do so, lightly press
the rear edge.
2.Turn the gas cap counterclockwise.
3.Place the gas cap in the bracket attached to
the fuel filler flap.
Closing
Fit the cap and turn it clockwise until you clearly
hear a click.
Do not pinch the band attached to the
cap; otherwise, the cap cannot be closed
properly and fuel vapors can escape. A mes-
sage will be displayed if the gas cap is loose or
missing.<
Manually releasing the fuel filler flap
In the event of a malfunction, you can release
the fuel filler flap manually:
Pull the button in the cargo area with the fuel
pump symbol down. The fuel filler flap is
released.
Observe the following when refueling
When handling fuels, follow the safety
instructions provided at filling stations;
otherwise, there is a risk of personal injury or
property damage.<
When refueling, insert the filler nozzle com-
pletely into the filler pipe. Avoid lifting the filler
nozzle while filling the tank, as that would
lead to:
>premature pump shutoff
>reduced efficiency of the fuel-vapor recov-
ery system.
The fuel tank is full when the filler nozzle clicks
off the first time.
Fuel tank capacity
Approx. 15.5 US gallons/55 liters, including the
reserve capacity of 2.1 US gallons/8 liters.
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.<
Page 230 of 254
Technical data
228
Weights
Capacities
Z4 sDrive30iZ4 sDrive35i
Approved gross weight
>with manual transmission lbs/kg 3,924/1,780 4,134/1,875
>with automatic transmission lbs/kg 3,990/1,810 4,178/1,895
Load lbs/kg 562/255 562/255
Approved front axle load lbs/kg 1,808/820 1,918/870
Approved rear axle load lbs/kg 2,227/1,010 2,271/1,030
Cargo area capacity cu ft/l 6.4 - 10.9/180 - 310 6.4 - 10.9/180 - 310
Notes
Fuel tank US gal/liters Approx. 15.5/55 Fuel grade: page193
Including reserve of US gal/liters Approx. 2.1/8.0
Window washer system For more details: page61
Including headlamp washers US qt/liters Approx. 6.3/6.0
Page 248 of 254

Everything from A to Z
246 Reception
– quality144
– radio station144
Recirculated-air mode94,98
Recirculation of air, refer to
Recirculated-air
mode94,98
Reclining seat, refer to
Backrest42
Refueling192
Releasing
– hood201
Remaining distance, refer to
Cruising range66
Remote control28
– battery renewal36
– Comfort Access34
– garage door opener100
– luggage compartment lid30
– malfunction31,36
– removing from the ignition
lock50
– service data206
Replacement remote
control28
Replacing bulbs, refer to
Lamps and bulbs212
Replacing tires199
Replacing tires, refer to New
wheels and tires199
Reporting safety defects6
Reserve warning, refer to Fuel
gauge65
Reset, refer to Resetting tone
settings142
Restraint systems
– for children48
– refer to Safety belts44
Retractable hardtop
– care, refer to Caring for your
vehicle brochure
– convenient operation30
– opening and closing39
– remote control30
retractable hardtop38
Reverse
– CD changer153
– CD player153Reverse gear56
– automatic transmission with
Steptronic54
– manual transmission53
Road map132
Roadside
Assistance185,218
Roadside parking lamps90
Roadworthiness test, refer to
Service requirements69
Roof load capacity228
Rope, refer to Tow-starting,
towing away222
Rotary/pushbutton, refer to
iDrive16
Route130,131
– bypassing sections131
– changing130,131
– changing criteria130
– displaying streets or towns/
cities131
– map display132
– selecting130
Route instructions, refer to
Destination guidance
through voice
instructions132
Route map, refer to Map
display132
Route section, changing131
Route selection130
RSC Runflat System
Component, refer to Run-
flat tires199
Runflat System Component
RSC, refer to Run-flat
tires199
Run-flat tires199
– continuing driving with a
damaged tire82
– flat tire81
– Flat Tire Monitor81
– new tires199
– replacing199
– tire inflation pressure194
– winter tires200
S
Safety-belt height
adjustment45
Safety belts44
– damage45
– indicator/warning lamp45
– reminder45
– sitting safely41
Safety systems
– airbags85
– Antilock Brake System
ABS78
– brake system78
– driving stability control
systems78
– Dynamic Stability Control
DSC78
– safety belts44
Safety tires, refer to Run-flat
tires199
Satellite radio146
– enabling or unsubscribing
from a channel146
– favorites148
– selecting channel147
– storing channel147
– timeshift148
– Traffic Jump149
Saving fuel112
Screen, refer to iDrive
controls16
Screw thread for tow
fitting220
SDARS, refer to Satellite
radio146
Seat adjustment
– electric42
– mechanical42
Seat and mirror memory43
Seat belt reminder, refer to
"Fasten safety belts"
reminder45
Seat heating43