Mercedes-Benz CLA Operator's Manual page 184

Driving systems
182
Sensors in the front bumper, left-hand
:
side (example)
The sensors must be free from dirt, ice or
slush. They can otherwise not function cor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them
( page 295).
Y
Range
If there is an obstacle within this range, the
relevant warning displays light up and a warn-
ing tone sounds. If the distance falls below
the minimum, the distance may no longer be
shown.
Warning displays
Warning display for the front area
Segments on the left-hand side of the
:
vehicle
Segments on the right-hand side of the
;
vehicle
Segments showing operational readiness
=
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the center air vents.
The warning display for the rear area is loca-
ted on the headliner in the rear compartment.
The warning display for each side of the vehi-
cle is divided into five yellow and two red seg-
ments. PARKTRONIC is operational if yellow
segments showing operational readiness =
light up.
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
sixth segment onwards, you will hear an
R
intermittent warning tone for approx-
imately two seconds.
seventh segment onwards, you will hear a
R
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance.