Blind Spot Assist uses two lateral, rear-facing radar sensors to monitor the area up to 3 m behind and 3 m directly next to your vehicle.
Blind Spot Assist does not react to either stationary objects or vehicles approaching and overtaking you at a greatly different speed.
Blind Spot Assist cannot warn drivers in these situations.
Blind Spot Assist is only an aid. It may fail to detect some vehicles and is no substitute for attentive driving. Always ensure that there is sufficient distance to the side for other road users and obstacles.
If a vehicle is detected above speeds of approximately 30 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 your vehicle in the lateral monitoring range and you switch on the turn signal indicator in the corresponding direction, a warning tone sounds. The red warning lamp in the outside mirror flashes. If the turn signal indicator remains switched on, all other detected vehicles are indicated only by the flashing of the red warning lamp.
When you overtake a vehicle, the warning only occurs if the difference in speed is less than 11 km/h.
if there is dirt on the sensors or the sensors are obscured
if there is poor visibility, e.g. due to fog, heavy rain, snow or spray
if narrow vehicles are within the monitoring range, e.g. bicycles
if the road has very wide or very 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. 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.
If you couple up a trailer, make sure that you have correctly established the electrical connection. Blind Spot Assist is then deactivated and the Blind Spot Assist currently unavailable See Owner's Manual message appears in the multifunction display.