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OverviewControlsMaintenanceRepairsDataIndex
Refueling Fuel specificationsAs long as the filler nozzle is used prop-
erly, the fuel tank is full whenever the
nozzle shuts off the first time.
Refill early to avoid damaging the
catalytic converter; never attempt
to drive to the last drop of fuel in the
tank.<
Tank capacity: approximately 18.5 gal.
(70 liters), with a reserve capacity of
>BMW 525i, 530i: 2.0 gal. (8 liters)
>BMW 540i: 2.5 gal. (10 liters).
After refueling, close the filler cap
carefully, continuing until you hear
the detent engage. While closing, be
sure not to squeeze the strap which is
fastened to the cap. A loose or missing
cap will activate the message "CHECK
FILLER CAP" in the Check Control
* or
the Check Filler Cap lamp
*.<
The engine uses lead-free gasoline
only.
Required fuel:
>Premium Unleaded Gasoline,
min. 91 AKI
AKI = Anti Knock Index
Never use leaded fuel, as it would
cause permanent and irreversible
damage to the oxygen sensor and the
catalytic converter.<
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Tire inflation pressureThe inflation pressures are indicated on
a sticker attached to the B-pillar behind
the driver's door (visible with door
open).Check tire pressuresAll pressure specifications are indicated
in psi (kilopascal) for tires at ambient
temperature (refer also to the next
pages).
Vehicles with Tire Pressure Monitor
(RDC)
*:
After correcting tire inflation pressures,
reactivate the system, refer to page 99.
390de697
Check your tire pressures on a
regular basis Ð at least twice a
month Ð and before every extended
journey. Incorrect tire pressure can lead
to driving instability, tire damage and
accidents.
Check the inflation pressure of the
spare tire also. Inflate the spare tire to
the highest pressure of any tire on your
vehicle.<
Comply with tire approval
specificationsThe inflation pressures in the tables
apply to BMW approved tires sizes and
tire manufacturers. Your BMW center is
familiar with these pressures. Higher
pressures may be specified for tires
from other manufacturers.
Your vehicle is equipped with tires that
not only meet US, but also European
standards. We recommend the exclu-
sive use of BMW approved tires.
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OverviewControlsMaintenanceRepairsDataIndex
Tire inflation pressuresedan Tires
All pressure specifications in
the table are indicated in psi
(kilopascal) with cold tires
(cold = ambient temperature)
525i225/60 R 15 96 H M+S
225/55 R 16 95 H M+S
225/60 R 15 96 W
225/55 R 16 95 W
235/45 R 17 94 W/Y
205/65 R 15 94 Q M+S
225/60 R 15 96 Q M+S
225/55 R 16 95 Q M+S
235/45 R 17 94 Q M+S
Front: 235/45 R 17 94 W/Y
Rear: 255/40 R 17 94 W/YÐ
29 (200)Ð
33 (230)33 (230)
33 (230)41 (280)
41 (280)
530i225/55 R 16 95 H M+S
225/55 R 16 95 W
235/45 R 17 94 W/Y
225/55 R 16 95 Q M+S
235/45 R 17 94 Q M+S
Front: 235/45 R 17 94 W/Y
Rear: 255/40 R 17 94 W/YÐ
29 (200)Ð
33 (230)33 (230)
33 (230)41 (280)
41 (280)
(outside US/CDN)
(outside US/CDN)(US/CDN)
(US/CDN)
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28n
Tire inflation pressuresedan Tires
All pressure specifications in
the table are indicated in psi
(kilopascal) with cold tires
(cold = ambient temperature)
540i225/55 R 16 95 W
235/45 R 17 94 W/Y35 (240) 39 (270) 41 (280) 48 (330)
Front: 235/45 R 17 94 W/Y
Rear: 255/40 R 17 94 W/Y35 (240)
ÐÐ
39 (270)41 (280)
ÐÐ
48 (330)
225/55 R 16 95 Q/T/H M+S
235/45 R 17 94 Q/T/H M+S30 (210) 35 (240) 36 (250) 44 (300)
540iA225/55 R 16 95 H M+S
225/55 R 16 95 W
235/45 R 17 94 W/Y
225/55 R 16 95 Q M+S
235/45 R 17 94 Q M+S30 (210) 35 (240) 36 (250) 44 (300)
Front: 235/45 R 17 94 W/Y
Rear: 255/40 R 17 94 W/Y30 (210)
ÐÐ
35 (240)36 (250)
ÐÐ
44 (300)
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OverviewControlsMaintenanceRepairsDataIndex
Tire inflation pressuresport
wagonTires
All pressure specifications in
the table are indicated in psi
(kilopascal) with cold tires
(cold = ambient temperature)
525i225/55 R 16 95 H M+S
225/60 R 15 96 H M+S
225/60 R 15 96 W
225/55 R 16 95 W
235/45 R 17 94 W/Y30 (210) 35 (240) 36 (250) 44 (300)
225/60 R 15 96 Q M+S
225/55 R 16 95 Q M+S
235/45 R 17 94 Q M+S33 (230) 38 (260) 39 (270) 46 (320)
540i225/55 R 16 95 H M+S
225/55 R 16 95 W
235/45 R 17 94 W/Y30 (210) 35 (240) 36 (250) 44 (300)
225/55 R 16 95 Q M+S
235/45 R 17 94 Q M+S33 (230) 38 (260) 39 (270) 46 (320)
Page 30 of 186
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OverviewControlsMaintenanceRepairsDataIndex
Overview
Controls and features
Operation, maintenance
Owner service procedures
Index Technical data
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32n
Keys Central locking system1 Master key with remote control unit,
for information on programming the
key memory refer to page 64.
You can mark individual keys for
subsequent identification by applying
the colored decals that you received
when accepting delivery of your
vehicle
There is an extended-life battery
in every master key that is
charged automatically in the ignition
lock as you drive.
For this reason, if you have a master
key that is not in regular use, you
should use that key approx. once every
year while driving for an extended
period. This will charge the battery.
Refer also to page 34.< 463de023
2 Spare key for storage in a safe place,
such as in your wallet. This key is not
intended for continuous use
3 Door and ignition key
The locks for the luggage compart-
ment lid/tailgate, rear backrest and
glove compartment cannot be oper-
ated with this key. This is recom-
mended for valet parking, for
instance
The conceptThe central locking system is ready for
operation as soon as you close the front
doors. The system engages and
releases the locks on the
>doors
>luggage compartment lid/tailgate
and rear window
*
>fuel filler door.
The central locking system can be
operated
>from outside via the driver's door lock
as well as via the remote control
>from inside via the central locking
system button.
Activation from inside does not lock the
fuel filler door (refer to page 37). Activa-
tion from outside simultaneously arms
the anti-theft system. The alarm system
is also activated or deactivated.
When you use the central locking
system to lock the doors from inside
the vehicle, it will automatically disen-
gage the locks if an accident occurs,
except on doors that have been locked
individually using the lock buttons, refer
to page 37. The accident response
routine also includes automatic activa-
tion of the hazard warning flashers and
the interior lamps.