452 Controls in detail
Driving systems
Front area:
As soon as the first red segment lights 
up, you will hear an intermittent warn-
ing tone for approximately two sec-
onds. Once the second red segment 
lights up, you will hear a continuous 
warning tone. You have reached the 
minimum distance.
Rear area:
As soon as the first red segment lights 
up, you will hear an intermittent warn-
ing tone for approximately two sec-
onds. Once the second red segment 
lights up, you will hear a continuous 
warning tone. You have reached the 
minimum distance.Collision warning
Park Assist can detect obstacles from a 
considerable distance. If you drive in re-
verse towards an obstacle, you will hear a 
warning tone. You must then brake in or-
der to avoid a collision. The warning tone 
for a collision will not sound when the vehi-
cle is at a standstill very close to the obsta-
cle. In this case, you will hear a 
corresponding tone for the warning indica-
tor in the rear area.Switching Park Assist system on/off
The Park Assist system can be switched off 
manually.
The Park Assist button with the indicator 
lamp is located on the control panel on the 
right-hand side of the instrument cluster.
1Park Assist button
2Indicator lamp
iDuring strong rainfall, the warning indicators 
and warning tones may be triggered, for exam-
ple, by water splashing into the area of the sen-
sors.
iDuring strong rainfall, the collision warning 
may be triggered, for example, by water splash-
ing into the area of the sensors.
iWhen the indicator lamp is on, the Park 
Assist system is switched off.