cooling BMW M4 2015 Owners Manual

▷The engine is not yet at operating temper‐
ature.▷The wheels are at a sharp angle or the
steering wheel is being turned.▷After driving in reverse.▷Fogging of the windows when the auto‐
matic climate control is switched on.▷Vehicle battery is heavily discharged.▷At higher elevations.▷The engine compartment lid is unlocked.▷The parking assistant is activated.▷Stop-and-go traffic.▷Use of fuel with high ethanol content.
Starting the engine
The engine starts automatically under the fol‐
lowing conditions:
▷M double-clutch transmission:
By releasing the brake pedal.▷Manual transmission:
The clutch pedal is pressed.
After the engine starts, accelerate as usual.
Safety mode
After the engine switches off automatically, it
will not start again automatically if any one of
the following conditions are met.
▷The driver's safety belt is unbuckled and
the driver's door is open.▷The hood was unlocked.
Some indicator lights light up for a varied
length of time.
The engine can only be started via the Start/
Stop button.
Functional limitations
Even if driving off was not intended, the deacti‐
vated engine starts up automatically in the fol‐
lowing situations:
▷Excessive warming of the car's interior
when the cooling function is switched on.▷The steering wheel is turned.▷Double-clutch transmission: Change from
selector lever position D to N, R or D/S.▷M double-clutch transmission: Accelerat‐
ing while simultaneously applying the
brake.▷The vehicle begins rolling.▷Fogging of the windows when the auto‐
matic climate control is switched on.▷Vehicle battery is heavily discharged.▷Excessive cooling of the car's interior when
the heating is switched on.▷Low brake vacuum pressure; this can oc‐
cur, e.g., if the brake pedal is depressed a
number of times in succession.
Preventing an automatic engine stop with aM double-clutch transmission
The concept To make it possible to drive off very quickly,
such as at an intersection, the automatic en‐
gine stop can be actively prevented.
Preventing an engine stop using the
brake pedal
The engine stop can be actively prevented
within one second after the vehicle comes to a
standstill.
▷Immediately after the vehicle comes to a
standstill, briefly press the brake pedal
forcefully.▷Then press the brake pedal with normal
braking force.Seite 65DrivingControls65
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Climate controlVehicle features and options
This 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 tothe 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.
Automatic climate control
1Seat heating, left   512Temperature, left3AUTO program4Display5Maximum cooling6Temperature, right7Seat heating, right   518Cooling function9Automatic recirculated-air control/recircu‐
lated-air mode10Air distribution, right11Air flow, AUTO intensity12Air distribution, left13Rear window defroster14Interior temperature sensor — always keep
clear15Defrosts windows and removes condensa‐
tionSeite 134ControlsClimate control134
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HintsSufficient ventilation
When remaining in the vehicle for an ex‐
tended period of time, ensure sufficient exter‐
nal ventilation. Do not continuously use recir‐
culated-air mode; otherwise the air quality in
the interior continuously deteriorates and win‐
dow condensation increases.◀
Climate control functions in detail
Temperature Turn the ring to set the desired
temperature.
The automatic climate control reaches this
temperature as quickly as possible, if needed
by increasing the cooling or heating output,
and then keeps it constant.
Do not rapidly switch between different tem‐
perature settings. Otherwise, the automatic cli‐
mate control will not have sufficient time to ad‐
just the set temperature.
AUTO program Press button.
Air flow, air distribution and tempera‐
ture are controlled automatically.
Depending on the selected temperature,
AUTO intensity program and outside influen‐ ces, the air is directed to the windshield, side
windows, upper body, and into the footwell.
The cooling function, refer to page 135, is
switched on automatically with the AUTO pro‐
gram.
At the same time, a condensation sensor con‐
trols the program so as to prevent window
condensation as much as possible.Intensity of the AUTO program
With the AUTO program activated, the auto‐
matic intensity control can be changed.
Press the left or right side of the but‐
ton: decrease or increase the inten‐
sity.
The selected intensity is shown on the display
of the automatic climate control.
Maximum cooling Press button.
The system is set to the lowest tem‐
perature, optimum air flow and air circulation
mode.
Air flows out of the vents to the upper body re‐
gion. The vents need to be open for this.
The function is available above an external
temperature of approx. 32 ℉/0 ℃ and with the
engine running.
Adjust air flow with the program active.
Cooling function
The car's interior can only be cooled with the
engine running.
Press button.
The air will be cooled and dehumidi‐
fied and, depending on the temperature set‐ ting, warmed again.
Depending on the weather, the windshield and
side windows may fog up briefly when the en‐
gine is started.
The cooling function is switched on automati‐
cally with the AUTO program.
When using the automatic climate control,
condensation water, refer to page 158, devel‐
ops that exits underneath the vehicle.Seite 135Climate controlControls135
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Automatic recirculated-air control/recirculated-air mode
You may respond to unpleasant odors or pollu‐ tants in the immediate environment by tempo‐
rarily suspending the supply of outside air. The
system then recirculates the air currently
within the vehicle.
Press button repeatedly to select an
operating mode:▷LEDs off: outside air flows in continuously.▷Left LED on, automatic recirculated-air
control: a sensor detects pollutants in the
outside air and shuts off automatically.▷Right LED on, recirculated-air mode: the
supply of outside air into the vehicle is per‐
manently blocked.
Recirculated air mode switches off automati‐
cally at low external temperatures after a cer‐
tain amount of time in order to avoid window
fogging.
If the windows are fogged over, switch off the
recirculated-air mode and press the AUTO
button to utilize the condensation sensor.
Make sure that air can flow to the windshield.
Sufficient ventilation
When remaining in the vehicle for an ex‐
tended period of time, ensure sufficient exter‐
nal ventilation. Do not continuously use recir‐
culated-air mode; otherwise the air quality in
the interior continuously deteriorates and win‐
dow condensation increases.◀
Manual air distribution Press button repeatedly to select a
program:
▷Upper body region.▷Upper body region and footwell.▷Footwell.▷Windows and footwell: driver's side only.▷Windows, upper body region and footwell:
driver's side only.If the windows are fogged over, press the
AUTO button to utilize the condensation sen‐
sor.
Air flow, manual
To manually adjust air flow turn off AUTO pro‐
gram first.
Press the left or right side of the but‐
ton: decrease or increase air flow.
The selected air flow is shown on the display of
the automatic climate control.
The air flow of the automatic climate control
may be reduced automatically to save battery
power.
Rear window defroster Press button.
The rear window defroster switches
off automatically after a certain period of time.
Defrosts windows and removes
condensation
Press button.
Ice and condensation are quickly re‐
moved from the windshield and the front side
windows.
For this purpose, point the side vents onto the
side windows as needed.
Adjust air flow with the program active.
If the windows are fogged over, you can also
switch on the cooling function or press the
AUTO button to utilize the condensation sen‐
sor.
Switching the system on/off
Switch off Press the left button for the minimum
speed.Seite 136ControlsClimate control136
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Switching on
Press any button except▷Rear window defroster.▷Seat heating.
Microfilter/activated-charcoal filter
In external and recirculated air mode the mi‐
crofilter/activated charcoal filter filters dust,
pollen, and gaseous pollutants out of the air.
This filter should be replaced during scheduled
maintenance, refer to page 188, of your vehi‐
cle.
Ventilation
Front ventilation
▷Lever for changing the air flow direction,
arrow 1.▷Thumbwheels for opening and closing the
vents continuously, arrows 2.▷Thumbwheel to vary the temperature in
the upper body region, arrow 3.
Toward blue: colder.
Toward red: warmer.
The set interior temperature for the driver
and passenger are not changed.
Adjusting the ventilation
▷Ventilation for cooling:
Direct vent in your direction when vehicle's
interior is too hot.▷Draft-free ventilation:
Adjust the vent to let the air flow past you.
Ventilation in the rear
▷Thumbwheel for continuous opening and
closing of the vents, arrow 1.▷Thumbwheel to vary the temperature, ar‐
row 2.
Toward blue: colder.
Toward red: warmer.▷Lever for changing the air flow direction,
arrow 3.
Parked-car ventilation
The concept The parked-car ventilation ventilates the vehi‐
cle interior and lowers its temperature, if
needed.
The system can be switched on and off at any
external temperature, either directly or by us‐
ing two preset reel-on times. It remains
switched on for 30 minutes.
Open the vents to allow air to flow out.
Switching on/off directly
On the Control Display:
1."Settings"2."Climate"3."Activate comf. ventilation"Seite 137Climate controlControls137
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Engine compartmentVehicle 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 tothe 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.
Important features in the engine compartment
1Jump-starting, negative battery terminal2Vehicle identification number3Washer fluid reservoir4Jump-starting, positive battery terminal5Engine compartment fuse box6Oil filler neck7Coolant reservoir for charge air cooling8Coolant reservoir for engine coolingHood
Hints Working in the engine compartment
Never attempt to perform any service or
repair operations on your vehicle without the
necessary professional technical training.If you are unfamiliar with the statutory guide‐
lines, have any work on the vehicle performed
only by a service center.
If work is not carried out properly, there is a
danger of subsequent damage and related
safety hazards.◀Seite 181Engine compartmentMobility181
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CoolantVehicle 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.
General information The vehicle has two coolant reservoirs that are
located in the engine compartment.
To ensure the operational reliability of the vehi‐
cle, always check the coolant level of both
coolant reservoirs.
Hints Danger of burns from hot engine
Do not open the cooling system while
the engine is hot; otherwise, esliding coolant
may cause burns.◀
Suitable additives
Only use suitable additives; otherwise,
engine damage may occur. The additives are
harmful to your health.◀
Coolant consists of water and additives.
Not all commercially available additives are
suitable for the vehicle. Information about the
suitable additives are available from the service
center.Coolant level
Checking1.Let the engine cool.2.Turn the lid of the coolant reservoir slightly
counterclockwise to allow any excess
pressure to dissipate, then open it.3.Open the coolant reservoir lid.4.The coolant level is correct if it lies be‐
tween the minimum and maximum marks
in the filler neck.Seite 186MobilityCoolant186
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Everything from A to Z
IndexA ABS, Antilock Brake Sys‐ tem 114
Acceleration Assistant, refer to Launch Control 73
Accessories and parts 7
Activated-charcoal filter 137
Active Blind Spot Detec‐ tion 111
Active M differential 117
Adaptive brake lights, refer to Brake force display 113
Adaptive Light Control 94
Adaptive M chassis 117
Additives, oil 185
Adjustments, seats/head re‐ straints 49
After washing vehicle 206
Airbags 98
Airbags, indicator/warning light 99
Air circulation, refer to Recir‐ culated-air mode 136
Air, dehumidifying, refer to Cooling function 135
Air distribution, manual 136
Air flow, automatic climate control 136
Air pressure, tires 172
Air vents, refer to Ventila‐ tion 137
Alarm system 44
Alarm, unintentional 45
All around the center con‐ sole 16
All around the roofliner 17
All around the steering wheel 14
All-season tires, refer to Win‐ ter tires 177 Alternating-code hand-held
transmitter 140
Alternative oil types 185
Ambient light 96
Antifreeze, washer fluid 69
Antilock Brake System, ABS 114
Anti-slip control, refer to DSC 115
Approved axle load 212
Approved engine oils, see Suitable engine oil
types 185
Arrival time 87
Ash tray 143
Assistance when driving off 118
Attentiveness assistant 113
AUTO intensity 135
Automatic car wash 205
Automatic climate con‐ trol 134
Automatic Curb Monitor 55
Automatic deactivation, front- seat passenger airbags 100
Automatic headlight con‐ trol 94
Automatic locking 44
Automatic recirculated-air control 136
AUTO program, automatic cli‐ mate control 135
AUTO program, intensity 135
Auto Start/Stop function 64
Average fuel consumption 87
Average speed 87
Axle loads, weights 212 B
Backrest curvature, refer to Lumbar support 51
Backrest, width 51
Band-aids, refer to First aid kit 200
Bar for tow-starting/ towing 203
Battery replacement, vehicle battery 196
Battery replacement, vehicle remote control 35
Battery, vehicle 196
Belt holder 54
Belts, safety belts 53
Beverage holder, cu‐ pholder 149
Blinds, sun protection 47
BMW Assist, see user's manual for Navigation, En‐
tertainment and Communi‐
cation
BMW Driver’s Guide App 6
BMW Homepage 6
BMW Internet page 6
BMW maintenance sys‐ tem 188
BMW M technology 154
Bottle holder, refer to Cu‐ pholders 149
Brake assistant 114
Brake discs, break-in 156
Brake force display 113
Brake lights, adaptive 113
Brake lights, brake force dis‐ play 113
Brake pads, break-in 156
Braking, hints 157
Breakdown assistance 199
Break-in 156 Seite 214ReferenceEverything from A to Z214
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Brightness of Control Dis‐play 90
Bulb replacement 190
Bulb replacement, front 191
Bulb replacement, LED head‐ lights 192
Bulb replacement, rear 193
Bulb replacement, xenon headlights 191
Bulbs and lights 190
Button, Start/Stop 62
Bypassing, refer to Jump- starting 200
C
California Proposition 65 Warning 7
Camera lenses, care 208
Camera, rearview cam‐ era 125
Camera, Side View 127
Camera, Top View 129
Can holder, refer to Cuphold‐ ers 149
Car battery 196
Carbon ceramic brake M 154
Car care products 206
Care, displays 208
Care, vehicle 206
Cargo 160
Cargo area, enlarging 145
Cargo area, storage compart‐ ments 149
Cargo, securing 161
Cargo straps, securing cargo 161
Car key, refer to Remote con‐ trol 34
Carpet, care 208
Car wash 205
Catalytic converter, refer to Hot exhaust system 157
CBS Condition Based Serv‐ ice 188 CD/Multimedia, see user's
manual for Navigation, En‐
tertainment and Communi‐
cation
Center armrest 148
Center console 16
Central locking system 39
Central screen, refer to Con‐ trol Display 18
Ceramic brake 154
Changes, technical, refer to Safety 7
Changing parts 190
Changing wheels 195
Changing wheels/tires 176
Chassis, electronic 117
Chassis number, see vehicle identification number 9
Check Control 77
Checking the engine oil level electronically 183
Checking the oil level elec‐ tronically 183
Children, seating position 58
Children, transporting safely 58
Child restraint fixing sys‐ tem 58
Child restraint fixing system LATCH 60
Child restraint fixing systems, mounting 58
Child seat, mounting 58
Child seats 58
Chrome parts, care 207
Cigarette lighter 143
Cleaning displays 208
Climate control 134
Clock 81
Closing/opening via door lock 39
Closing/opening with remote control 37
Clothes hooks 149
Cockpit 14 Combination reel, refer to
Turn signals 67
Combination switch, refer to Wiper system 67
Comfort Access 41
Compartments in the doors 148
Compass 141
Compound brake 154
Compressor 177
Computer, refer to On-board computer 86
Condensation on win‐ dows 136
Condensation under the vehi‐ cle 158
Condition Based Service CBS 188
Confirmation signal 44
ConnectedDrive, see user's manual for Navigation, En‐
tertainment and Communi‐
cation
ConnectedDrive Services
Connecting electrical devi‐ ces 143
Control Display 18
Control Display, settings 89
Controller 18, 19
Control systems, driving sta‐ bility 114
Convenient opening with the remote control 37
Coolant 186
Coolant temperature 81
Cooling function 135
Cooling, maximum 135
Cooling system 186
Cornering light 94
Corrosion on brake discs 158
Cosmetic mirror 143
Courtesy lamps during un‐ locking 37
Courtesy lamps with the vehi‐ cle locked 38
Cruise control 120 Seite 215Everything from A to ZReference215
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Initialize, Tire Pressure Moni‐tor TPM 102
Instrument cluster 76
Instrument cluster, electronic displays 76
Instrument lighting 96
Integrated key 34
Integrated Owner's Manual in the vehicle 30
Intelligent Emergency Re‐ quest 199
Intelligent Safety 104
Intensity, AUTO pro‐ gram 135
Interior equipment 139
Interior lights 96
Interior lights during unlock‐ ing 37
Interior lights with the vehicle locked 38
Interior motion sensor 45
Interior rearview mirror, auto‐ matic dimming feature 56
Interior rearview mirror, com‐ pass 141
Internet page 6
Interval display, service re‐ quirements 83
Interval mode 68
J Jacking points for the vehicle jack 196
Jump-starting 200
K
Key/remote control 34
Keyless Go, refer to Comfort Access 41
Key Memory, refer to Per‐ sonal Profile 35
Knee airbag 99 L
Lamp replacement 190
Lamp replacement, front 191
Lamp replacement, rear 193
Lane departure warning 110
Lane margin, warning 110
Language on Control Dis‐ play 89
Lashing eyes, securing cargo 161
LATCH child restraint sys‐ tem 60
Launch Control 73
Leather, care 207
LED light, bulb replace‐ ment 192
LEDs, light-emitting di‐ odes 191
Length, vehicle 212
Letters and numbers, enter‐ ing 25
Light alloy wheels, care 207
Light control 94
Light-emitting diodes, LEDs 191
Lighter 143
Lighting 93
Lights 93
Lights and bulbs 190
Light switch 93
Load 161
Loading 160
Lock, door 39
Locking/unlocking via door lock 39
Locking/unlocking with re‐ mote control 37
Locking, automatic 44
Locking, settings 43
Locking via trunk lid 40
Low beams 93
Low beams, automatic, refer to High-beam Assistant 95
Lower back support 51
Low Speed Assistant 71 Luggage rack, see Roof-
mounted luggage rack 162
Lumbar support 51
M
Maintenance 188
Maintenance require‐ ments 188
Maintenance, service require‐ ments 83
Maintenance system, BMW 188
Make-up mirror 143
Malfunction displays, see Check Control 77
Manual air distribution 136
Manual air flow 136
Manual operation, door lock 39
Manual operation, exterior mirrors 55
Manual operation, fuel filler flap 168
Manual operation, Park Dis‐ tance Control PDC 123
Manual operation, rearview camera 125
Manual operation, Side View 128
Manual operation, Top View 129
Manual transmission 70
Marking on approved tires 176
Master key, refer to Remote control 34
Maximum cooling 135
Maximum speed, display 85
Maximum speed, winter tires 177
M carbon ceramic brake 154
M Compound brake 154
M differential, active 117
MDM, M Dynamic Mode 116 Seite 218ReferenceEverything from A to Z218
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