Mercedes-Benz A-Class Operator's Manual page 164

162 Driving and parking
vehicles with the Driving Assistance Package, in
the range between 15 mph (20 km/h) and
130 mph (210 km/h).
Other features of Active Distance Assist
DISTRONIC:
Adjusts the driving style depending on the
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selected drive program (fuel-saving, comfort‐
able or dynamic) ( page 133).
→
Vehicles with Driving Assistance Pack‐
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age: Reacts to stationary vehicles (except
bicycles and motorcycles) in urban speed
ranges if conditions are sufficient to enable
detection. It also does not detect pedes‐
trians.
Initiates rapid acceleration to the stored
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speed, if the turn signal indicator is switched
on to change to the overtaking lane.
Vehicles with Driving Assistance Pack‐
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age: Takes one-sided overtaking restrictions
into account on highways or on multi-lane
roads with separate roadways.
Vehicles with Active Parking Assist and Driv‐
ing Assistance Package: if the vehicle has
been braked to a standstill on multi-lane, sepa‐
rate roadways by Active Distance Assist
DISTRONIC, it can automatically follow the vehi‐
cle in front driving off again within 30 seconds. If
a critical situation is detected when driving off, a
visual and acoustic warning is given indicating
that the driver must now take control of the vehi‐
cle. The vehicle is not accelerated any further.
Active Distance Assist DISTRONIC is only an aid.
The driver is responsible for keeping a safe dis‐
tance to the vehicle in front, for vehicle speed
and for braking in good time.
System limitations
The system may be impaired or may not function
in the following instances, for example:
In snow, rain, fog, heavy spray, if there is
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glare, in direct sunlight or in greatly varying
ambient light.
The windshield in the area of the camera is
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dirty, fogged up, damaged or covered.
If the radar sensors are dirty or covered.
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On slippery roads, braking or accelerating
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can cause the drive wheels to lose traction
and the vehicle could then skid.
In parking garages or on roads with steep
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uphill or downhill gradients.
Do not use Active Distance Assist DISTRONIC in
these situations.
& WARNING Risk of accident from acceler‐
ation or braking by Active Distance
Assist DISTRONIC
Active Distance Assist DISTRONIC may accel‐
erate or brake in the following cases, for
example:
If the vehicle pulls away using Active Dis‐
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tance Assist DISTRONIC.
If the stored speed is called up and is
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considerably faster or slower than the
currently driven speed.
If Active Distance Assist DISTRONIC no
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longer detects a vehicle in front or does
not react to relevant objects.