07 Driver support
07
207
WARNING
The laser sensor also transmits laser light when City Safety™ is disabled manually.
Related information
•City Safety™ (p. 205)
• City Safety™ - limitations (p. 207)
• City Safety™ - function (p. 205)
• City Safety™ - laser sensor (p. 209)
• City Safety™ - symbols and messages (p. 211)
• MY CAR (p. 103)
City Safety™ - limitations
The sensor in City Safety™ is designed to detect cars and other large vehicles in front ofthe car irrespective of whether it is day ornight. However, the function has a number oflimitations. However, the sensor has limitations and has poorer functionality - or none at all - in e.g.heavy snowfall or rain, dense fog, duststorms or white-out situations. Mist, dirt, iceor snow on the windscreen may disrupt thefunction. Low-hanging objects, e.g. a flag/pennant for projecting load, or accessories such as auxili-ary lamps and bull bars that are higher thanthe bonnet limit the function. The laser beam from the sensor in City Safety™ measures how the light is reflected.The sensor cannot detect objects with lowreflection capacity. The rear sections of thevehicle generally reflect the light sufficientlythanks to the number plate and rear lightreflectors. On slippery road surfaces the braking dis- tance is extended, which may reduce thecapacity of City Safety™ to avoid a collision.In such situations the ABS and DSTC sys-tems will provide best possible braking forcewith maintained stability. When your own car is reversing, City Safety™ is temporarily deactivated. City Safety™ is not activated at low speeds -under 4 km/h, which is why the system doesnot intervene in situations where a vehicle infront is being approached very slowly, e.g.when parking. Driver commands are always prioritised, which is why City Safety™ does not intervenein situations where the driver is steering oraccelerating in a clear manner, even if a colli-sion is unavoidable. When City Safety™ has prevented a collision with a stationary object the car remains sta-tionary for a maximum of 1.5 seconds. If thecar is braked for a vehicle in front that is mov-ing, then speed is reduced to the same speedas that maintained by the vehicle in front. On a car with manual gearbox the engine stops when City Safety™ has stopped thecar, unless the driver manages to depress theclutch pedal beforehand.
NOTE
•
Keep the windscreen surface in front of the laser sensor free from ice, snowand dirt (see the illustration for sensorlocation (p. 205)).
• Do not affix or mount anything on thewindscreen in front of the laser sensor
• Remove ice and snow from the bonnet- snow and ice must not exceed aheight of 5 cm.
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07 Driver support
07
220* Option/accessory, for more information, see Introduction.
• Collision warning system* - operation (p. 217)
• Collision warning system* - camera sen-sor limitations (p. 220)
• Collision warning system* - symbols andmessages (p. 222)Collision warning system* - camera sensor limitations
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection.
The function uses the car's camera sensor,
which has certain limitations. The car’s camera sensor is also used - as well as by Collision Warning with Auto Brake- by the functions:
• Automatic main/dipped beam dim- ming (p. 82)
• Road sign information (p. 179)
• Driver Alert Control - DAC (p. 224)
• Lane Keeping Aid (p. 229)
NOTE
Keep the windscreen surface in front of the camera sensor free from ice, snow, mistand dirt. Do not stick or attach anything to the windscreen in front of the camera sensoras this may reduce effectiveness or causeone or more of the systems dependent onthe camera to stop working.
The camera sensors have limitations similar to the human eye, i.e. they "see" worse in darkness, heavy snowfall or rain and in thickfog for example. Under such conditions thefunctions of camera-dependent systemscould be significantly reduced or temporarilydisengaged. Strong oncoming light, reflections in the car- riageway, snow or ice on the road surface,dirty road surfaces or unclear lane markingscould also significantly reduce camera sensorfunction when it is used to scan the carriage-way and detect pedestrians and other vehi-cles. The field of vision of the camera sensor is lim- ited, which is why pedestrians, cyclists andvehicles cannot be detected in some situa-tions, or they are detected later than anticipa-ted. During very high temperatures the camera is temporarily switched off for about 15 minutesafter the engine is started in order to protectcamera functionality.
Fault tracing and actionIf the display shows the messageWindscreen Sensors blocked then this
means that the camera sensor is blocked and cannot detect pedestrians, cyclists, vehiclesor road markings in front of the car. At the same time, this means that - besides Collision Warning with Auto Brake - the Auto-matic main/dipped beam dimming, Road SignInformation, Driver Alert Control and Lane
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||
11 Specifications
11
426* Option/accessory, for more information, see Introduction.
SymbolSpecificationSee
Stability system, DSTC, Trailerstability assist(p. 64), (p. 178), (p.312)
Stability system, sport mode(p. 64), (p. 178)
Engine preheater (diesel)(p. 64)
Low level in fuel tank(p. 64), (p. 132)
Information, read display text(p. 64)
Main beam On(p. 64), (p. 81)
Left-hand direc- tion indicators(p. 64)
Right-hand direction indica-tors(p. 64)
Start/Stop*, engine auto-stopped(p. 64), (p. 286)
ECO function* on(p. 64), (p. 288)
Tyre pressure system*(p. 64), (p. 330)
Information symbols in the combined instrument panel
SymbolSpecificationSee
Cruise control*(p. 185)
Adaptive cruise control*(p. 200)
Adaptive cruise control*, time inter-val(p. 188), (p. 190)
Adaptive cruise control*, DistanceWarning* (DistanceAlert)(p. 192), (p. 202)
Radar sensor*(p. 200), (p. 204),(p. 222)
Speed limiter(p. 182)
Camera sensor*, Laser sensor*(p. 211), (p. 222),(p. 227),(p. 232),(p. 238)
SymbolSpecificationSee
Auto Brake*, Dis- tance Warning*(Distance Alert), City Safety TM
, Col-
lision warning sys- tem*(p. 204), (p. 211),(p. 222)
ABL system*(p. 84)
Driver Alert Sys- tem*, Time for abreak(p. 225)
Driver Alert Sys- tem*, Time for abreak(p. 227)
Parking brake(p. 293)
Rain sensor*(p. 90)
Active high beam, AHB (Active HighBeam)*(p. 82)
Windscreen sen- sor*(p. 82)
Start/Stop*(p. 286)
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12 Alphabetical Index
12
428
A
ACC – Adaptive cruise control................. 188Active Bending Lights (ABL)...................... 84
Active chassis - FOUR-C......................... 175
Active high beam....................................... 82
Active Park Assist.................................... 247 function............................................... 248
Limitations.......................................... 251
operation............................................. 249
Symbols and messages..................... 252
Active Xenon headlamps........................... 84
Active Yaw Control.................................. 175
Adapting driving characteristics...... 175, 257
Adaptive Cruise Control........................... 188 change cruise control functionality..... 196
deactivate........................................... 194
fault tracing......................................... 199
function............................................... 189
managing speed................................. 191
overtaking........................................... 194
overview.............................................. 190
radar sensor........................................ 197
setting the time interval...................... 192
standby mode..................................... 193
temporary deactivation....................... 193 Additional heater
electric........................................ 134, 135
fuel-driven........................................... 134
Adjusting the steering wheel...................... 76 Airbag activating/deactivating, PACOS........... 30
driver's side.................................... 28, 36
passenger side......................... 29, 30, 36
AIRBAG ............................................... 28, 29
Airbag system............................................ 28 warning symbol.................................... 27
Air cleaning material............................................... 118
passenger compartment.... 116, 117, 118
Air conditioning........................................ 124 Air conditioning system repair................................................... 352
Air distribution.......................................... 119 Recirculation....................................... 126
table.................................................... 127
Air quality system IAQS........................... 118
Alarm........................................ 171, 172, 173 alarm indicator.................................... 172
alarm signals....................................... 173
automatic re-arming........................... 172
checking the alarm............................. 153
reduced alarm level............................ 173
remote control key not working.......... 172 Alcolock................................................... 259
Allergy and asthma inducing substances. 117
All Wheel Drive, (AWD)............................. 290
All Wheel Drive (AWD).............................. 290
Approach lighting.............................. 89, 152
Automatic car washes............................. 379
Automatic gearbox.......................... 273, 276
manual gear positions (Geartronic)..... 273
towing and recovery........................... 314
trailer................................................... 308
Automatic relocking................................. 164
AWD, All Wheel Drive............................... 290
B
Backrest..................................................... 72 front seat, lowering............................... 72
Backrest rear seat, lowering...................... 75
Bag holder .............................................. 144
Battery..................................... 298, 361, 411 jump starting....................................... 270
maintenance....................................... 361
overload.............................................. 298
remote control key/PCC..................... 158
specification....................................... 411
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