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General information
With use of the system observe further infor‐
mation found under Tire inflation pressure, re‐
fer to page 206.
Functional requirements
The system must have been reset at the cor‐
rect tire inflation pressure; otherwise, reliable
signaling of a loss of tire inflation pressure 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 system status can be displayed on the
Control Display, e.g., whether or not the sys‐
tem is active.
Using iDrive:
1.
"Vehicle info"
2. "Vehicle status"
3. "Tire Pressure Monitor (TPM)"
The current 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.
One to four yellow wheels
A flat tire or major drop in the tire inflation
pressure has occurred in the indicated tires.
Gray wheels
It may not be possible to identify tire pressure
losses.
Possible causes:
▷ Malfunction.
▷ The system is being reset.
Additonal information
The status control display additionally shows
the current tire inflation pressures and, de‐
pending on the model, tire temperatures. It
shows the actual values read; they may vary
depending on driving style or weather condi‐
tions.
Resetting the system
General information
A reset must be performed in the following sit‐
uations:
▷ After the tire inflation pressure has been
adjusted.
▷ After a tire or wheel replacement.
Reset
Using iDrive:
1.
"Vehicle info"
2. "Vehicle status"
3. "Perform reset"
4. Start the engine but do not drive off.
5. Reset tire inflation pressure: "Perform
reset".
6. Drive away.
The wheels are displayed in gray and the sta‐
tus is displayed.
After driving faster than 19 mph/30 km/h for a
short period, the set tire inflation pressures are
accepted as reference values. The reset is
completed automatically while driving.
After a successfully completed Reset, the
wheels on the Control Display are shown in
Seite 112
Controls Safety
112
Online Edition for Part no. 01402977904 - II/17
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