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sible speed traffic sign at a time. If two speed
signs are shown on the driver display, when speed
limits are detected, forexample, the value of the
left-hand speed limit
1
is transmitted to the lim-
iter, cruise control or Active Distance Assist
DISTRONIC for acceptance and is shown on the
head-up display.
Important information from other systems can
cause traffic signs to be hidden for a short time.
If the Speed Limit Assist cannot determine the
current maximum permissible speed, e.g.due to a
lack of signage, the following display appears in
the driver display:
This display is permanent if the vehicle is in a
country where Speed Limit Assist is not suppor-
ted. Speed Limit Assist is not available in all coun-
tries.
If the system is temporarily or permanently
unavailable due to a technical fault or soiling of
the windscreen, a corresponding display message
appears in the driver display. Depending on the
country, the Speed Limit Assist warning lamp
ê also lights up in the driver display.
%
Please also note the information on display
messages (
page 767).
/
System limits
The system may be impaired or inoperative in the
following situations in particular:
If visibility is poor, e.g. due to insufficient illu-
R
mination of the road, highly variable shade
conditions, rain, snow, fog, swirling dust or
heavy spray.
If there is glare, e.g. from oncoming traffic,
R
direct sunlight or reflections.
If there is dirt on the windscreen in the vicinity
R
of the multifunction camera or if the camera is
misted up, damaged or obscured.
If the traffic signs are difficult to see because,
R
forexample, they are dirty, obscured, faded,
iced over, damaged, inconveniently positioned,
insufficiently illuminated or askew.
Active traffic signs with LED displays may not
R
be detected correctly, or even at all due to
F118 0058 02
Driving and parking 349
technical factors, suchas transmission fre-
quency.
If the signs, road markings or road layout are
R
ambiguous, e.g. in the case of traffic signs at
road works, at exits and on-ramps, in the case
of adjacent lanes or parallel roads, in the case
of pedestrian crossing markings at traffic
lights.
If the signage or road markings do not comply
R
with the standard.
If the signage, road markings, or road guid-
R
ance is country-specific and deviates from the
navigation system's route guidance, e.g. at or
after road works.
After sharp turns and tight bends, if traffic
R
signs are outside the camera's field of vision.
If you overtake vehicles with traffic signs
R
affixed or attached to them.
If transport devices are used that are attached
R
to the trailer coupling, e.g. bicycle racks, the
system may react to restrictions for trailers.
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