Instruction manual

36 A-Modell - 11/12 - Ausgabe 09/11 - 2096161 - BUE-0036-10EN

During the journey

4.2 Parking distance control Park Boy V (special

equipment)

Short description The parking distance control serves as an aid for parking. The distance to pos-

sible obstacles is measured using the ultrasound echo sounder method. Four

sensors at the rear of vehicle send ultrasound signals and the distance to the

obstacle is measured according to the time taken by the reflected ultrasound

signals.

In the passenger compartment, a display unit (Fig. 18) shows the distance to

the obstacle. At the same time, an acute signal sounds as a warning.

The sensors and display unit are linked by radio.

X Be particularly careful when driving backwards. Risk of accident and

injury.

X The parking distance control is only an auxiliary appliance and may not

necessarily recognise all obstacles. The driver of the vehicle is respon-

sible for safety. If the device fails or there is a malfunction and damage

occurs, then claims cannot be asserted against the vehicle manufac-

turer.

X Soil deposits, ice, snow and exhaust fumes can prevent the parking dis-

tance control from working properly.

X Only if you drive slowly (at inching speed) will a warning be emitted in

time.

X Obstacles above or below the sensor measurement area will be ignored

(e.g. projecting load ramps).

X Precipitous embankments or road edges (e.g. quay walls) are ignored.

Z Reflections from the road (a change of surface, irregularities) can some-

times trigger false alarms. This is not due to an error in the parking distance

control.

Fig. 18 Park Boy V display unit

1STOP symbol

2 Distance display in cm (in 5 cm inter-

vals)

3 Distance to the obstacle (graphical

display)

4 On/Off button for the sensors at the

rear of the vehicle

5 Without function

Z When you switch on the ignition, the parking distance control runs a self-

test. If a sensor is defective, this is indicated on the display by rapid

flashing of the sensor position. The parking distance control continues to

function, with the exception of the defective sensor.

If the radio connection is faulty, this will be indicated on the display by

means of a transmission mast symbol. Distance measurement is then not

possible.

When reverse gear is disengaged, the transmission mast symbol is also

briefly displayed.