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Maximum speed with snow chains
Do not exceed a speed of 30 mph/50 km/h
when using snow chains.
Rear wheel steering during operation
with snow chains
General information
In order to guarantee free running of the
wheels when operating with snow chains, rear
axle steering of the integral active steering
must be switched off when snow chains are
mounted.
Safety information
WARNING
When rear wheel steering is switched on
and snow chains are mounted, there can be
contact between snow chains and the chassis.
There is a risk of accidents or risk of property
damage. With mounted snow chains, switch
off the rear wheel steering.◀
Switching off rear wheel steering
The rear wheel steering is switched off by
specifying that snow chains are installed.
Via iDrive:
1.
"My Vehicle"
2. "Vehicle settings"
3. "Tire chains"
4. "Tire chains installed"
Starting with the permissible maximum speed
with snow chains of 30 mph/50 km/h the rear
wheel steering will be switched on again auto‐
matically.
Tire Pressure Monitor TPM
Concept
The system monitors tire inflation pressure in
the four mounted tires. The system warns you
if there is a loss of pressure in one or more
tires. For this purpose, sensors in the tire
valves measure the tire inflation pressure and
tire temperature.
General information
With use of the system observe further infor‐
mation found under Tire inflation pressure, re‐
fer to page 266.
Functional requirements
The system must have been reset with the
correct tire inflation pressure; otherwise, relia‐
ble signaling of tire inflation pressure loss is
not assured.
Reset the system after each adjustment of the
tire inflation pressure and after every tire or
wheel change.
Always use wheels with TPM electronics to
ensure that the system will operate properly.
Status display
The current status of the Tire Pressure Moni‐
tor TPM can be displayed, e.g., whether or not
the TPM is active.
Via iDrive:
1.
"My Vehicle"
2. "Vehicle status"
3. "Tire Pressure Monitor"
The status is displayed.
Tire conditions
General information
Tire and system status are indicated by the
color of the wheels and a SMS text message
on the Control Display.
All wheels green
System is active and will issue a warning re‐
lated to the tire inflation pressures stored dur‐
ing the last reset.
Seite 277
Wheels and tires Mobility
277
Online Edition for Part no. 0140 2 974 740 - VI/16
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