2002 BMW 525I SPORT WAGON cooling

104n
1 Airflow directed toward the
windshield and side windows
2 Airflow for the upper body
area106
3 Footwell ventilation
4 Rear footwell ventilation 5 Airflow for the upper body area
in the rear seat106
6 Temperature105
7 Air distribution 1058 Air supply105
9 Rear window defroster105
10 Cooling105
11 Recirculated-air mode105
Air conditioning
390us742

105n
OverviewControlsMaintenanceRepairsDataIndex
Air conditioningTemperature
The numbers in the display
panel are reference figures for
general orientation. We
recommend a setting of 70 7
(22 6) for a congenial in-car climate.
When you start the vehicle, this system
adjusts the air to the selected tempera-
ture as quickly as possible, and then
maintains that temperature constantly.
Air distribution
You can direct the emerging
air toward the windows ,
toward your upper body or
into the footwell . All inter-
mediate settings are also available. In
the setting, there is a low flow of air
onto the windows to keep them free of
condensation.
Air supply
You can control the emerging
air's flow rate through an infi-
nitely-variable range. The
heating and ventilation
become more and more effective as the
air supply settings are increased. In the
"0" setting, the blower and climate
control are switched off and the outside
air supply is blocked.
Rear window defroster
The indicator lamp comes
on to indicate that the rear
window defroster is in operation. The
rear window defroster switches off
automatically.
Cooling
The air conditioning cools
and dehumidifies the
incoming air before reheating it to the
selected temperature. Depending on
the weather, the windshield may fog
over briefly when the engine is started.
You can reduce condensation forming
on the windows by switching on the air
conditioning.
Condensation forms in the air
conditioning system during opera-
tion, which then exits under the vehicle.
Traces of condensed water of this kind
are thus normal.<
Recirculated-air mode
You can respond to
unpleasant odors in the
surrounding environment by using this
mode to temporarily suspend the flow
of outside air into the vehicle's interior.
The system then recirculates the air
currently within the vehicle.
If your vehicle is equipped with a multi-
function steering wheel
featuring a
recirculated-air button then you can
also select the recirculated-air mode
from this location (refer to page 22).
If the windows should fog over in
the recirculated-air mode, switch
the recirculated-air mode off and
increase the air supply as required.<

108n
Automatic climate control
*
10 Temperature control Ð
right-hand side109
11 To defrost windshield and
windows10912 Air conditioning110
13 Automatic recirculated-air control
(AUC)110
14 Rear window defroster11015 Air supply109
16 Maximum cooling110
Residual heating mode111
17 Air grill for interior temperature
sensor Ð please keep clear and
unobstructed
390us743

110n
Automatic climate control
*
Air conditioning
The air is cooled and
dehumidified and Ð
depending on the temperature setting Ð
warmed again when the air conditioning
is switched on. Depending on the
weather, the windshield may fog over
briefly when the engine is started. You
can reduce condensation forming on
the windows by switching on the air
conditioning.
Condensation forms in the air
conditioning system during opera-
tion, which then exits under the vehicle.
Traces of condensed water of this kind
are thus normal.<
Maximum cooling
With the engine running
this program provides
maximum cooling at outside tempera-
tures above approximately 41 7 (5 6).
60 7 (16 6) appears in the tempera-
ture display 9, and the system reverts to
the recirculated-air mode while simulta-
neously providing maximum airflow
through the vent outlets only. That is
why you need to keep these open if you
select this program.
Automatic recirculated-air
control (AUC)
You can respond to
unpleasant external odors
by temporarily stopping the flow of
outside air. The system then recircu-
lates the air currently within the vehicle.
Press the button repeatedly to run
through the following control sequence:
>Indicator lamps off: outside airflow
operational
>Left-hand indicator lamp on Ð AUC
mode: the system recognizes pollut-
ants in the outside air and blocks the
flow of air when necessary. The
system then recirculates the air
currently within the vehicle.
Depending on the air quality, the
automatic system then switches back
and forth between outside air supply
and recirculation of the air within the
vehicle
>Right-hand indicator lamp on: the
flow of external air into the vehicle is
permanently blocked. The system
then recirculates the air currently
within the vehicle.
If you have a multifunction steering
wheel with the recirculated-air button
(refer to page 22), you can also use it to
switch between "Off" and the recircu-
lated-air mode or AUC and the recircu-
lated-air mode.
If the windows should fog over in
the recirculated-air mode, switch
the recirculated-air mode off and
increase the air supply as required.< Rear window defroster
When the rear window
defroster is activated, the
indicator lamp comes on. The rear
window defroster switches off automat-
ically.

142n
Coolant
Do not add coolant to the cooling
system when the engine is hot. If
you attempt to do so, escaping coolant
can cause burns.
To avoid the possibility of damage later
on, never use anything other than
factory-approved, nitrite and amino-
free extended-duty antifreeze with
corrosion inhibitor. Your BMW center is
familiar with the factory specifications.
Antifreeze and anti-corrosion agents
are hazardous to health. You should
always store it in its original container
and in a location which is out of reach
of children.
Extended-duty antifreeze with corro-
sion inhibitor contains the flammable
substance ethyleneÐglycol. For this
reason, do not spill antifreeze with
corrosion inhibitor on hot engine parts.
It could catch fire and cause burns.<
Checking coolant level and
adding coolantCorrect coolant level when the engine
is cold (approx. 687/206):
Unscrew the cap from the expansion
tank.
The coolant level is correct when the
upper end of the red float is at least
even with the upper edge of the filler
neck (refer to the arrow in the illustra-
tion), but no more than 0.8 in (2 cm)
above it Ð that is, up to the second mark
on the float (refer also to the schematic
diagram next to the filler neck).380de081
1. Start by turning the cap counter-
clockwise. Pause to allow any accu-
mulated pressure to escape, then
open
2. If the coolant is low, slowly add
coolant until the correct level is
reached Ñ do not overfill.
Comply with the applicable envi-
ronmental laws regulating the
disposal of extended-duty antifreeze
with corrosion inhibitor.<

173n
OverviewControlsMaintenanceRepairsDataIndex
Capacities

Notes
Fuel tank
Reservegal. (liters)
gal. (liters)approx. 18.5 (approx. 70)
approx. 2.0 (approx. 8) Ð BMW 525i, 530i
approx. 2.5 (approx. 10) Ð BMW 540iFuel specification: page 25
Windshield washer system
with headlamp washer system
Intensive cleaning systemquarts (liters)
quarts (liters)
quarts (liters)approx. 3.7 (approx. 3.5)
approx. 6.3 (approx 6.0)
approx. 1.1 (approx 1.0)For details: page 139
Cooling system including
heater circuitquarts (liters) 11.1 (10.5) Ð BMW 525i, 530i
12.7 (12.0) Ð BMW 540iFor details: page 142
Engine oil and filter change quarts (liters) 6.9 (6.5) Ð BMW 525i, 530i
7.9 (7.5) Ð BMW 540i"BMW High Performance
Synthetic Oil."
For details: page 141
Manual transmission, automatic
transmission and differentialÐ Ð Lifetime fluid, no fluid
change required

Everything from A to Z
179n
OverviewControlsMaintenanceRepairsDataIndex
I
Ice warning80
Identification, tires135
Ignition lock66
Immoblizer function94
activating code94
deactivating code94
selecting code94
Important in the engine
compartment138
Imprint4
Independent ventilation
system112
Indicator and warning
lamps19
Inflation pressure26t
monitoring99
Inflation pressure,
tires26, 133
INSPECTION82
Instrument
cluster15, 16, 17
Instrument displays15
Instrument lighting102
Instrument panel16, 17
Instrument panel switch76
Instruments15
Intensive cleaning139 Interior lamps103
Interior mirror58
Interior motion sensor42
avoiding unintentional
alarms44
deactivate35
Interior rearview mirror57
automatic dimmer58
Interlock66
J
Jack157
Jump-starting162t K
Key Memory64
Key with remote control32
Keys32
Kickdown71, 74 L
Lamps and bulbs151t
LATCH child-restraint
system63
LATCH child-restraint
system, sport wagon64 Leather care, refer to the
"Caring for your vehicle"
manual
Length of vehicle169
Level control system21, 99
inactive99t
License plate lamps
bulb replacement156t
Liftgate, refer to tailgate40
Light switch101
Lighter118
LIGHTS ON warning101
LIMIT91
Load-securing devices126
Louvers104, 107
Low beams101
bulb replacement151t
Low-fuel warning lamp81
Lug bolts158
Lug wrench157t
Luggage
compartment38, 42, 123
capacity171
manual operation38t
Luggage compartment
lid38
electrical malfunction38
emergency release from
luggage compartment's
interior41 opening from the
outside39
opening separately38
remote control35
secure separately38
Luggage compartment's
interior, emergency
release41
Luggage net42
Luggage straps42
Lumbar support50
M
M+S tires136
Maintenance82, 144t
Malfunction displays83t
Manual operation
doors33
fuel filler door24
luggage compartment
lid38
sliding/tilt sunroof47
tailgate39
Manual transmission69
Manually controlled
recirculated-air110
Manually-adjusted seat50
Master key32
Maximum cooling110
Memory settings