Blind Spot Assist and Active Blind Spot Assist use two lateral, rear-facing radar sensors to monitor the area up to 40 m behind and 3 m next to your vehicle.
If a vehicle is detected at speeds above approximately 12 km/h and this vehicle subsequently enters the monitoring range directly next to your vehicle, the warning lamp in the outside mirror lights up red.
If a vehicle is detected close to the side of your vehicle, the red warning lamp in the outside mirror flashes. If you switch on the turn signal indicator in the corresponding direction, a warning tone sounds once. If the turn signal indicator remains switched on, all other detected vehicles are indicated only by the flashing of the red warning lamp.
If you overtake a vehicle quickly, no warning is given.
Blind Spot Assist does not react to vehicles approaching and overtaking you at a greatly different speed.
As a result, Blind Spot Assist cannot warn drivers in this situation.
Blind Spot Assist and Active Blind Spot Assist are only aids. They may fail to detect some vehicles and are no substitute for attentive driving. Always ensure that there is sufficient distance to the side for other road users and obstacles.
The exit warning is an additional function of Blind Spot Assist and can warn vehicle occupants about approaching vehicles when leaving the vehicle when stationary.
The exit warning reacts neither to stationary objects nor to vehicles approaching you at a greatly different speed.
As a result, the exit warning cannot warn drivers in these situations.
If there is a vehicle in the monitoring range, this is indicated in the outside mirror. If a vehicle occupant opens the door on the side with the warning, a warning tone sounds and the warning lamp in the outside mirror starts to flash.
This additional function is only available when Blind Spot Assist is activated and up to a maximum of three minutes after the ignition has been switched off. The exit warning is no longer available once the warning lamp in the outside mirror flashes three times.
The exit warning is only an aid and not a substitute for the attention of vehicle occupants. The responsibility for opening and closing the doors and for leaving the vehicle remains with the vehicle occupants.
if there is dirt on the sensors or the sensors are obscured
in poor visibility, e.g. due to fog, heavy rain or snow
if there are narrow vehicles, e.g. bicycles or motorbikes
if the road has very wide or narrow lanes
if vehicles are not driving in the middle of their lane
Warnings may be issued in error when driving close to crash barriers or similar solid lane borders. Always make sure that there is sufficient distance to the side for other traffic or obstacles.
Warnings may be interrupted when driving alongside long vehicles, for example lorries, for a prolonged time.
Blind Spot Assist is not operational when reverse gear is engaged.
Blind Spot Assist is not operational when a trailer is coupled to the vehicle and the electrical connection has been correctly established.
when the sensors are covered by adjacent vehicles in narrow parking spaces
when people approach the vehicle
in the event of stationary or slowly moving objects