BMW X1 Owner's Handbook Manual page 116

Controls
4. Start the engine – do not drive off.
5. Start initialisation: "Perform reset".
6. Drive off.
Initialising is completed during the journey; 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. Check whether the vehicle is equipped
with standard tyres or run-flat tyres.
The symbol identifying run-flat tyres, see
page 203, is the circle with the letters RSC
on the tyre side wall.
WARNING
A damaged normal tyre with inadequate
tyre inflation pressure or no tyre inflation pres‐
sure at all impairs driving properties, for exam‐
ple steering and braking. Tyres with run-flat
properties allow a limited level of stability to be
maintained. Danger of accidents. Do not con‐
tinue to drive unless the vehicle is equipped
with run-flat tyres. Comply with the notes on
run-flat tyres and continuing to drive with
these tyres.◀
It is possible that Dynamic Stability Control
DSC is activated as soon as the message for a
flat tyre appears.
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.
116
Security
Online Edition for Part no. 01 40 2 964 279 - VI/15
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.
▷ Dynamic driving style, causing the drive
gears to spin, high lateral acceleration.
▷ Driving with snow chains.
What to do in the event of a flat tyre
Standard tyres
1. Identify the damaged tyre.
Do this by checking the air pressure in all
four tyres.
The tyre inflation pressure display of the
Mobility System, see page 204, can be
used for this.
If all four tyres are inflated to the correct
pressures, the runflat indicator might not
have been initialised. In this case initialise
the system.
If it is not possible to identify, contact a
Service Partner or a qualified specialist
workshop.
2. Fix the puncture with the Mobility System,
see page 204.
Run-flat tyres
Top speed
If a tyre has punctured you can continue your
journey, driving at speeds up to a maximum of
80 km/h, 50 mph.
Continuing a journey with a flat tyre
If you continue a journey with a flat tyre:
1. Avoid violent or sudden braking and steer‐
ing manoeuvres.