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— Driving through road works, tunnels or toll
stations.
— Driving on winding roads, e.g. mountain
roads.
— Driving offroad.
— Driving in multi-storey car parks.
— Driving on roads with embedded metal
objects, e.g. railway tracks.
— Driving on roads with loose chippings.
— Vehicles without Inside Overtaking Preven-
tion System: On roads with more than one
lane, if other vehicles are driving more
slowly in the overtaking lane.
WARNING
If you use ACC in the above situations, this
could result in accidents and serious inju-
ries as well as violations of legal regula-
tions.
Delayed response
If the radar sensor is exposed to environmen-
tal conditions that impair sensor functioning,
the system may detect this only after a cer-
tain delay. For this reason, any restrictions to
functions may be displayed only after a delay
at the start of the journey and when driving
→ page 151.
Objects that cannot be detected
The radar sensor detects only vehicles that
are moving in the same direction or station-
ary. It does not detect:
— Persons.
— Animals.
— Crossing or oncoming vehicles.
— Other stationary obstacles.
Stationary vehicles
Fig. 104
Turning and stationary vehicle.
ACC reacts to stationary vehicles to a limited
extent up to a speed of 60 km/h (37 mph),
provided a stationary vehicle is detected and
your own vehicle can be comfortably braked
behind the stationary vehicle, subject to the
system limits of the ACC. ACC does not per-
form emergency braking.
If a stationary vehicle is hidden behind a vehi-
cle that has been detected by ACC and this
vehicle turns off the road or changes lane,
ACC will react to the stationary vehicle
→
Fig.
104.
Bends
Fig. 105
Driving through bends.
The radar sensor always measures straight
ahead. For this reason, vehicles may be incor-
rectly detected or vehicles driving ahead not
detected in tight bends →
Vehicles outside the sensor range
Fig. 106
Narrow vehicle.
Adaptive Cruise Control
Fig.
105.
153
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