2016 BMW M4 inflation pressure

Tyre Pressure Monitor TPM
Principle The system monitors the tyre pressure in the
four fitted tyres. The system warns if the infla‐
tion pressure in one or more tyres has fallen
considerably. To do this, the sensors in the
tyre valves measure the tyre pressure and tyre
temperatures.
Note
To operate the system, also follow the other
information and notes under tyre inflation pres‐
sure, see page 175.
Operating requirements For the system, a reset must have been made
with the correct tyre inflation pressure, other‐
wise reliable signalling of a flat tyre cannot be assured.
Reset the system after adjusting the tyre pres‐
sure to a new value and after a tyre or wheel
change.
Always use wheels with TPM electronics to
guarantee the system functions without errors.
Status display
The current status of the Tyre Pressure Moni‐
tor TPM can be shown on the Control Display,
for example whether the TPM is active.
On the Control Display:1."Vehicle information"2."Vehicle status"3. "Tyre Pressure Monitor (RDC)"
The status is displayed.
Status control display The tyre and system status is denoted by the
wheel colour and some text on the Control Dis‐
play.
All wheels green
System is active and is warning about the tyre
inflation pressures stored during the last reset.
One wheel yellow
A flat tyre or major loss of tyre inflation pres‐
sure in the tyre shown.
All wheels yellow
A flat tyre or major loss of tyre inflation pres‐
sure in several tyres.
Wheels grey
The system cannot detect a flat tyre. The rea‐
sons for this are:▷System reset is performed.▷Malfunction.
Additional information
The current tyre inflation pressures and, de‐
pending on the model, tyre temperatures are
also displayed in the status control display.
The values shown are current values and may
change due to the effect of driving mode or
weather conditions.
Running reset Reset the system after adjusting the tyre pres‐
sure to a new value and after a tyre or wheel
change.
On the Control Display and on the vehicle:
1."Vehicle information"2."Vehicle status"3. "Perform reset"4.Start the engine – do not drive off.5.Resetting tyre pressure: "Perform reset".6.Drive off.
The wheels are shown grey and the status ap‐
pears on the display.
After driving for a short time over 30 km/h,
19 mph the set tyre inflation pressures are ac‐
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cepted as target values. The reset is run auto‐
matically while the vehicle is in motion.
After a successfully concluded reset, the
wheels are shown in green on the Control Dis‐
play and "Tyre Pressure Monitor (RDC)
active." is shown.
You can interrupt your drive at any time. Reset
resumes automatically when you continue
your journey.
Message if tyre inflation pressure is
low
The yellow warning lamp is illuminated.
A Check Control message is shown.▷There is a flat tyre or substantial
loss of tyre pressure.▷No reset has been done to the system.
Consequently, the system warns of the
tyre pressures of the last reset.1.Reduce your speed and carefully stop the
vehicle. Avoid violent or sudden braking
and steering manoeuvres.2.Determine which wheel is damaged. Do
this by checking the tyre inflation pres‐
sures with the aid of the Mobility System.
Correcting the tyre inflation pressure3.Remedy the flat tyre with the Mobility Sys‐
tem or replace the damaged wheel.
When there is a message that the tyre inflation
pressure is low, the Dynamic Stability Control
DSC may be switched on.
Message with required tyre inflation
pressure test
In such situations, a check control message is
displayed:
▷System has detected a wheel change, but
no reset has been run.▷Filling was not performed according to the
regulations.▷The tyre inflation pressure has dropped
compared to the last confirmation.If that is the case:▷Check the tyre pressure and adjust as nec‐
essary.▷Reset the system after a wheel change.
System limits
The system is not working correctly if no reset
has been run, for example, a flat tyre is repor‐
ted in spite of the correct tyre inflation pres‐
sure.
Tyre inflation pressure depends on the tem‐
perature of the tyre. By increasing tyre temper‐
ature, for example, when driving or with solar
radiation, the tyre inflation pressure increases.
Tyre inflation pressure decreases if the tyre
temperature drops. Through this behaviour, a
warning may be triggered if there are major
temperature drops, due to the given warning
limits.
No warning can be given by the system of ex‐
treme, sudden tyre failure caused by external
factors.
Malfunction The yellow warning lamp flashes and is
then illuminated continuously. A Check
Control message is shown. No flat
tyres or loss of tyre pressure can be detected.
This may indicate one of the following:
▷Wheel without TPM electronics is fitted:
have the vehicle checked by a Service
Partner or a qualified specialist workshop if
necessary.▷Malfunction: have the system checked by a
Service Partner or a qualified specialist
workshop.▷TPM has not completed a reset. Run a re‐
set of the system again.▷Fault due to systems or devices with the
same frequency: the system is automati‐
cally reactivated upon leaving the field of
interference.Seite 108ControlsSecurity108
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Runflat indicator RPA
Principle The system identifies a loss of tyre pressure
by comparing the speeds of rotation of the in‐
dividual wheels while the vehicle is in motion.
If a tyre loses pressure, its diameter changes.
This in turn alters the rotational speed of the
corresponding wheel. This is detected and re‐
ported as a flat tyre.
The system does not measure the tyre pres‐
sures as such.
Operating requirements
The system must have been initialised with
correct tyre inflation pressure, otherwise relia‐
ble signalling of a flat tyre cannot be assured.
Each time the tyre pressure is adjusted or a
tyre or wheel is changed, initialise the system
again.
Status display The current status of the runflat indicator can
be shown on the Control Display, for example
whether the runflat indicator is active.
On the Control Display:1."Vehicle information"2."Vehicle status"3. "Flat Tyre Monitor (RPA)"
The status is displayed.
Initialising
On initialisation, the current tyre pressures are
stored as a reference for detection of a flat tyre. The initialisation is started by confirming
the correct tyre inflation pressures.
When driving with snow chains fitted, do not
initialise the system.
On the Control Display:
1."Vehicle information"2."Vehicle status"3. "Perform reset"4.Start the engine – do not drive off.5.Start the initialisation with "Perform reset".6.Drive off.
Initialising is completed while the vehicle is in
motion; this process can be interrupted at any
time.
Initialising resumes automatically when you
continue your journey.
Message of a flat tyre The yellow warning lamp is illuminated.
A Check Control message is shown.
There is a flat tyre or substantial loss of
tyre pressure.
1.Reduce your speed and carefully stop the
vehicle. Avoid violent or sudden braking
and steering manoeuvres.2.Determine which wheel is damaged. Do
this by checking the tyre inflation pres‐
sures with the aid of the Mobility System. If
all tyres are inflated to the correct pres‐
sures, the runflat indicator might not have
been initialised. In this case initialise the
system.3.Remedy the flat tyre with the Mobility Sys‐
tem or replace the damaged wheel.
System limits
A natural, even loss of tyre pressurein all four
tyres that occurs over time is not detected.
Consequently, check the tyre inflation pres‐
sure at regular intervals.
No warning can be given in the event of sud‐
den tyre failure caused by external factors.
In the following situations, the system could be
slow to respond or operate incorrectly:
▷If the system has not been initialised.▷Journey on snow-covered or slippery sur‐
faces.Seite 109SecurityControls109
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Saving fuelVehicle equipmentThis chapter describes all standard, national
and special equipment provided in the model
series. Equipment not available in the vehicle is
therefore also described, for example the se‐
lected special equipment or national version.
This also applies to safety-relevant functions
and systems. Comply with the relevant na‐
tional regulations when using the correspond‐
ing functions and systems.
General
Your vehicle contains wide-ranging technolo‐
gies for reducing consumption and emission
levels.
Fuel consumption depends on various factors.
A number of measures, such as a moderate
driving style and regular maintenance, can in‐
fluence fuel consumption and reduce burden
on environment.
Removing transported load that is not required
Extra weight increases fuel consumption.
Removing add-on parts after use
Remove auxiliary mirrors, roof racks and rear-
mounted racks after use.
Add-on parts on the vehicle interfere with its
aerodynamic performance and inflate fuel con‐
sumption.Closing windows and the
glass roof
An opened glass roof or opened window in‐
creases the drag coefficient and thus reduces
the range.
Tyres General Tyres can have differing effects on fuel con‐
sumption. For example, fuel consumption can
be affected by tyre size.
Checking tyre pressures regularly Check and, if necessary, correct tyre inflation
pressures at least twice a month and before
setting off on a longer journey.
Insufficient tyre inflation pressure enlarges the
rolling resistance and thus increases fuel con‐
sumption and tyre wear.
Setting off immediately Do not warm up the engine with the vehicle at
a standstill; it is preferable to set off straight
away, driving at moderate engine speeds.
This brings the cold engine to operating tem‐
perature as quickly as possible.
Driving with foresight
Avoid accelerating and braking unnecessarily.
Keep an appropriate distance from the preced‐
ing vehicle.
Anticipating the road situation and adopting a
smooth driving style will reduce fuel consump‐
tion.Seite 168Driving hintsSaving fuel168
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Wheels and tyresVehicle equipment
This chapter describes all standard, national
and special equipment provided in the model
series. Equipment not available in the vehicle is
therefore also described, for example the se‐
lected special equipment or national version.
This also applies to safety-relevant functions
and systems. Comply with the relevant na‐
tional regulations when using the correspond‐
ing functions and systems.
Tyre pressures Information for your safety
A tyre’s condition and pressure influence the
following:▷Operating life of the tyre.▷Driving safety.▷Driving comfort.
Checking tyre pressures
WARNING
A tyre with inadequate or missing tyre in‐
flation pressure impairs driving properties, for example steering and braking. Danger of acci‐
dents. Check tyre inflation pressure regularly
and adjust as necessary, for example twice a
month or before any long journey.◀
Tyres have a natural, uniform tyre pressure
loss.
Tyres heat up when driving and with the tem‐
perature of the tyre, the tyre filling pressure in‐
creases. The tyre filling pressure data relate to
cold tyres or tyres at ambient temperature.
Only check the tyre pressure when the tyres
are cold. In other words, after driving for a max‐
imum of 2 km or if the vehicle has been parked
for at least 2 hours.
Inflating devices can display a pressure as
much as 0.1 bar too low.
With runflat indicator: reinitialise the runflat in‐
dicator after adjusting tyre pressures.
With tyre pressure monitor: reset the tyre pres‐
sure monitor after adjusting the tyre pressure
to a new value.
Tyre inflation pressures
The tyre inflation pressures for the tyre sizes
categorised by the vehicle manufacturer as
suitable for the respective vehicle type can be
found on the door pillar of the driver's door.
If the speed letter of the tyre cannot be found,
the tyre inflation pressure of the corresponding
size applies. The tyre inflation pressure data
apply to tyres at ambient temperature.
For Australia/New Zealand WARNING
The inflation pressures on the tyre label
are applicable only for tyres explicitly men‐
tioned on the label. Since inflation pressures
for tyres that may be covered by the label – by
size, speed category and load rating/load index
– but not explicitly mentioned on the label may
be different. Please obtain adequate inflation
pressures in accordance with the tyre manu‐
facturer's specifications at your tyre dealer.◀
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Tyre sizes
The pressure values apply for the tyre sizes
categorised by the vehicle manufacturer as
suitable and the tyre makes recommended for
the respective vehicle type.
More information regarding wheels and tyres
can be enquired with a Service Partner or a
qualified specialist workshop.
Tyre tread
Summer tyres
The tyre tread depth should not be less than
3 mm, 0.12 in.
Below a tread depth of 3 mm, approximately
0.12 in, there is a high risk of aquaplaning.
Winter tyres The tyre tread depth should not be less than4 mm, approximately 0.16 in.
Below a tread depth of 4 mm, approximately
0.16 in, suitability for vehicle operation in win‐
ter is restricted.
Minimum tread depth
Wear indicators are distributed across the tyre
circumference and have the legally prescribed
minimum height of 1.6 mm, approximately
0.06 in.
They are identified on the tyre's side wall by
TWI, Tread Wear Indicator.
Tyre damage
General Inspect tyres frequently for damage, the pres‐
ence of foreign bodies and wear.
Notes
Vehicle behaviour that is an indication of tyre
damage or other faults:▷Unusual vibrations during the journey.▷Unusual vehicle response, such as pro‐
nounced pulling to the left or right.
Damage can be caused by, for example, run‐
ning over kerbs, road damage etc.
WARNING
Damaged tyres can lose tyre inflation
pressure, which can lead to loss of control over
the vehicle. Danger of accidents. If you get a
note about tyre damage during the journey,
immediately reduce speed and come to a halt.
Have the wheels and tyres checked. To do
this, carefully drive to the nearest Service Part‐
ner or a qualified specialist workshop. If neces‐
sary, have the vehicle towed or transported
there.◀
WARNING
Damaged tyres can lose tyre inflation
pressure, which can lead to loss of control over
the vehicle. Danger of accidents. Do not repair
damaged tyres, have them renewed instead.◀
Age of tyres
Recommendation
Irrespective of wear, change tyres after
six years at the latest.
Date of manufacture
On the tyre side wall:
DOT … 0115: the tyre was made in the
1st week of 2015.
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ted speed for the tyres fitted must be dis‐
played in the driver's field of view. The sticker
is available from a Service Partner or a qualified
specialist workshop.
If winter tyres are fitted, observe and comply
with the respectively permitted maximum
speed.
Interchanging front and rear wheels
The manufacturer of your vehicle advises
against interchanging the front and rear
wheels. This could impair vehicle handling
Such a change is not permitted in vehicles with
different tyre or rim dimensions on the front
and rear axles.
Tyre storage
Store wheels and tyres in a cool, dry and pref‐
erably dark place when not in use.
Protect tyres against contamination from oil,
grease and fuel.
Do not exceed the maximum tyre pressure in‐
dicated on the tyre's side wall.
Remedying flat tyres Safety measures▷Park the vehicle on a solid surface and as
far away from moving traffic as possible.▷Switch on hazard warning lights.▷Protect the vehicle against rolling, by ap‐
plying the parking brake.▷Engage the steering wheel lock in the
straight ahead position of the wheels.▷Allow all vehicle occupants get out of the
vehicle and guide them out of the danger
area, for example behind the crash barrier.▷Set up warning triangle an appropriate dis‐
tance away.Mobility system
Principle With the mobility system, minor tyre damage
can be quickly sealed, to allow you to drive on.
To do that, liquid sealant is pumped into the
tyres which encloses the damage from the in‐ side when it hardens.
The compressor can be used to check the tyre
inflation pressure.
Notes▷Please observe the notes on the applica‐
tion of the Mobility system which are on
the compressor and the sealant container.▷Applying the Mobility system can be inef‐
fective for tyre damage as from a size of
approximately 4 mm.▷Contact a Service Partner or a qualified
specialist workshop if you are unable to put
the tyre back in operation.▷If possible, foreign matter that has penetra‐
ted the tyre should remain inside the tyre.▷Remove the speed limit sticker from the
sealant container and attach to the steer‐
ing wheel.▷Using sealants can damage the TPM wheel
electronics. If sealant is used, check the
electronics as soon as you get an opportu‐
nity and have them replaced if necessary.
DANGER
A blocked exhaust pipe or inadequate
ventilation can allow harmful exhaust fumes to
penetrate the vehicle. The exhaust gas con‐
tains carbon monoxide, which is colourless and
odourless, but highly toxic. In enclosed spaces,
the exhaust fumes can also build up outside
the vehicle. Danger of fatal injury. Keep the ex‐
haust pipe clear and ensure sufficient ventila‐
tion.◀
Storage
Mobility system is located under boot floor.
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Sealant container▷Sealant container, arrow 1.▷Filler hose, arrow 2.
Note the use-by date on the sealant container.
Compressor
1Mounting for cylinder2Compressor3Plug/cable for socket4Connecting hose5On/Off button6Tyre inflation pressure display7Reduce tyre inflation pressureFilling with sealing compound1.Shake the sealant container.2.Remove the connecting hose entirely from
the compressor housing. Do not kink the
hose.3.Bolt the connecting hose onto the connec‐
tor of the sealant container.Seite 179Wheels and tyresMobility179
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