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199Driving
Parking sensor system*
Introduction
The parking sensor system assists the driver when parking. When the vehi-
cle approaches an obstacle, forwards or backwards, an intermittent audible
warning will be heard, higher or lower depending on the distance. The
shorter the distance, the shorter the intervals between tones. If the vehicle
is too close to the obstacle, the audible warning becomes constant.
If you continue to approach an obstacle when the sound is continuous, this
means the system can no longer measure the distance.
The sensor system on the bumpers transmit and receive ultrasound. Using
the ultrasound signal (transmission, reflection from the obstacle and recep-
tion), this system continuously calculates the distance between the bumper
and the obstacle.
Additional information and warnings:
● Park Assist system ⇒ page 203
● Accessories, parts replacement, repairs and modifications ⇒ page 260
WARNING
The parking sensor system and the optical parking system cannot re-
place driver awareness.
● The sensors have blind spots in which obstacles and people are not
registered.
● Always observe the area around the vehicle, as the sensors do not al-
ways detect small children, animals or objects.
WARNING (Continued)
● The surface of certain objects and some clothing do not reflect the ul-
trasound signals from the parking distance system. The system cannot
detect or incorrectly detects these objects and people wearing these
types of clothes.
● External sound sources can affect the parking distance aid signals. In
this case, under certain circumstances, people and objects will not be de-
tected.
CAUTION
● The sensors may not always be able to detect objects such as trailer
draw bars, thin rails, fences, posts, trees and open luggage compartments,
etc. This could result in damage to your car.
● Although the parking sensor system detects and warns of the presence
of an obstacle, the obstacle could disappear from the angle of measure-
ment of the sensors if it is too high or low and the system would no longer
indicate it. Therefore, it will not warn you of these objects. Ignoring the
warnings of the parking sensor system could cause considerable damage to
the vehicle.
● The bumper sensors may become damaged or misaligned, for example,
when parking.
● To ensure that the system works properly, the bumper sensors must be
kept clean, free of ice and snow and uncovered.
● When cleaning the sensors with high-pressure or steam cleaning equip-
ment, spray the sensors briefly at a distance of no less than 10 cm (4 in-
ches).
Note
Acoustic sources may lead to erroneous warnings on the parking sensor
system, e.g. rough tarmac, cobbles or the noise of other vehicles.
Safety First Operating instructions Practical tips Technical Specifications
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