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that the tire sizes of the mounted tires are dis‐
played correctly and match the details on the
tires and on the vehicle.
Functional requirements
The following conditions must be met for the
system; otherwise, reliable flagging of a loss of
tire inflation pressure is not assured:
▷ Every time a tire or wheel is changed, the
correct details on the mounted tires must be
entered in the tire settings.
▷ TPM does not activate until after driving for a
few minutes:
▷ After a tire or wheel replacement.
▷ Reset, for tires without special approval.
▷ After changing the tire setting.
▷ For tires with special approval:
▷ After a tire or wheel replacement, a reset
was performed with the correct tire infla‐
tion pressure.
▷ After the tire inflation pressure was ad‐
justed to a new value, a reset was per‐
formed.
▷ Wheels with TPM wheel electronics.
Tire settings
General information
The tire sizes of the mounted tires can be gath‐
ered from the tire inflation pressure details on the
vehicle or directly on the tires.
The tire details do not need to be re-entered
when the tire inflation pressure is corrected.
For summer and winter tires, the tire details en‐
tered last are stored. After a tire or wheel re‐
placement, the settings of the tire sets used last
can be selected.
Changing settings
Via iDrive:
1. "CAR"
2. "Vehicle status"
3. "Tire Pressure Monitor"
4. "Tire settings"
5. "Tire selection"
6. "Manual"
7. "Tire type"
▷ "Summer tires"
▷ "Winter/all-year"
8. Select the tire type that is mounted on the
rear axle:
▷ Tire size, e.g., 245/45 R18 96 Y.
▷ For tires with special approval: "Other
tire".
Observe further proceeding in the per‐
form a reset section.
9. Select the maximum road speed that will be
used with the tires.
10."Save tire settings"
The measurement of the current tire inflation
pressure is started. The measurement progress
is displayed.
Status display
Current status
The system status can be displayed on the Con‐
trol Display, e.g., whether or not the system is ac‐
tive.
Via iDrive:
1.
"CAR"
2. "Vehicle status"
3. "Tire Pressure Monitor"
The current status is displayed.
Seite 324
MOBILITY
Wheels and tires
324
Online Edition for Part no. 01402628420 - VI/19
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