164 Driving and operation
Picture no: 18244s.tif
Deflation detection system (DDS) 3
The deflation detection system monitors
the revolutions of all four vehicles from a
speed of approximately 30 km/h. If there is
a loss of pressure in one of the tyres, its
diameter is reduced, and therefore also the
wheel rotation speed. Warning lamp w
lights red.
Stop immediately and check tyre pressure.
Fit the spare wheel if necessary 3 196,
3 200.
Control indicator
w
If control indicator w lights up red while
driving, there is a loss of pressure. Stop
immediately and check tyre pressures. A
maximum speed of 80 km/h is permitted
for tyres run flat 3 3 171.
Control indicator illumination w in yellow
indicates a fault in the system. Have cause
of fault remedied by a workshop. The
system’s integrated self diagnostics allow
faults to be quickly remedied.
The control indicator flashes three times
when the system is initialising.
Tyre pressure 3 169, 3 264.
Picture no: 18245s.tif
System initialisation
After correcting the tyre pressure or
changing a tyre/wheel, the system must be
initialised: turn the ignition on, press the
DDS button for approx. 4 seconds. Control
indicator w flashes three times. The system
is operational after driving a certain
distance.
Only initialise the system if all tyres have
the prescribed pressure.
9 Warning
The deflation detection system does not
replace manual checks with a suitable
gauge.
Check tyre pressures at least every
14 days and prior to any long journey;
the tyres should be checked when cold.
Don’t forget to check the spare 3.
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