Mercedes-benz 2013 C Class Coupe User Manual download pdf (Page 356)

Further information can be found on:

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Vehicles with a 4-button multifunction

steering wheel: (Y page 270).

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Vehicles with a 12-button multifunction

steering wheel: (Y page 271).

If the tyre pressure monitor is malfunctioning,

it may take more than ten minutes for the tyre

pressure warning lamp to inform you of the

malfunction by flashing for approximately one

minute and then remaining lit. When the fault

has been rectified, the tyre pressure warning

lamp goes out after you have driven for a few

minutes.

The tyre pressure values indicated by the on-

board computer may differ from those meas-

ured at a filling station using a pressure

gauge. The tyre pressures shown by the on-

board computer refer to those measured at

sea level. At high altitudes, the tyre pressure

values indicated by a pressure gauge are

higher than those shown by the on-board

computer. In this case, do not reduce the tyre

pressures.

The operation of the tyre pressure monitor

can be affected by interference from radio

transmitting equipment (e.g. radio head-

phones, two-way radios) that may be being

operated in or near the vehicle.

Checking the tyre pressure electroni-

cally

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Make sure that the key is in position 2 in

the ignition lock (Y page 149).

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Press the = or ; button on the steer-

ing wheel to select the Service menu.

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Press the 9 or : button to select

Tyre pressure.

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Press the a button.

The current tyre pressure for each wheel

will be displayed in the multifunction dis-

play.

If the vehicle has been parked for over

20 minutes, the Tyre pressures will be

displayed after a few minutes of

driving message appears.

After a teach-in period, the tyre pressure

monitor automatically recognises new

wheels or new sensors. As long as a clear

allocation of the tyre pressure values to the

individual wheels is not possible, the Tyre

pressure monitor active display mes-

sage is shown instead of the tyre pressure

display. The tyre pressures are already being

monitored.

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If a spare wheel/emergency spare wheel

is fitted, for a few minutes the system may

continue to show the tyre pressure of the

wheel that has been removed. If this

occurs, the value displayed for the position

where the spare wheel/emergency spare

wheel is fitted is not the same as the spare

wheel/emergency spare wheel's current

tyre pressure.

Warning messages of the tyre pressure

monitor

If the tyre pressure monitor detects a pres-

sure loss in one or more tyres, a warning mes-

sage is shown in the multifunction display and

the yellow tyre pressure monitor warning light

comes on.

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If the Please correct tyre pressure

message appears in the multifunction dis-

play, the tyre pressure in at least one tyre

is too low and must be corrected at the next

opportunity.

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If the Check tyre(s) message appears in

the multifunction display, the tyre pressure

in one or more tyres has dropped signifi-

cantly and the tyres must be checked.

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If the Tyre malfunction appears in the

multifunction display, the tyre pressure in

one or more tyres has dropped suddenly

and the tyres must be checked.

Observe the instructions and safety notes in

the display messages in the "Tyres" section

(Y page 271).

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If the wheel positions on the vehicle are

interchanged, the tyre pressures may be

displayed for the wrong positions for a

354

Tyre pressure

Wheels and tyres

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