Operation
Fig. 248 Display in the exterior mirror
r-f"n First read and observe the introductory L-W! information and safety warnings & on page 312.
Visual display in the exterior Situation mirror housing
The lane change assist system uses radar sensors to monitor the area behind the vehicle. The system then measures the distance and the difference in speed to other vehicles. The lane change assist system is activated at speeds over approximately 10 km/h (6 m ph) and deactivated at speeds under 5 km/h (3 mph). The driver receives infonmation via the visual display in the exterior mirror housing.
Visual display in the exterior mirror housing
The visual displays 248 in the exterior mirror housing notify the driver of following traffic on ei-ther side of the vehicle whenever a traffic situation is classified as critical when the driver intends to change lanes.
Tinted side windows or retrofitted tinting foils can negatively affect or distort the visual displays in the exterior mirror.
None No other vehicle at a critical distance from your vehicle detected by -the lane change assist system & in Indicator lamp on page 313.
Lights up once briefly. The lane change assist system is switched on and ready for use.
Lit up (information level). The lane change assist system has detected a potentially critical sit-uation.
Flashes several times The turn signal is active and the lane change assist system has de-
(warning level). tected a potentially critical situation on the corresponding side of the in Indicator/amp on page 313.
Radar sensors
The radar sensors are on the left and right behind the rear bumper and are not visible from outside. They monitor an area of approximately 70 metres behind the vehicle and the blind spots to the right and left of the vehicle. The monitored area to the side of the vehicle is approximately one lane wide.
The width of the lane is not detected in individual cases. but is predefined in the system. For this rea-son. incorrect displays could be shown when driv-
314 I While driving
ing in narrow lanes or when driving in the middle of 2 lanes. In the same way, vehicles travelling in the lane next to the one you wish to change to could be detected, as could solid objects such as safety barriers. and trigger an incorrect warning.
Driving situations
A
(I
Fig. 249 [A] Driving situation when overtaking with traffic behind the vehicle [81 Visual display in the left-hand exterior mirror.
A
Fig. 250 situation when overtaking and pulling in. [B' Visual display in the right-hand exterior mirror.
rll1 First read and observe the introductory L-W.I Information and safety warnings & on page 312.
The following driving situations trigger a light in the exterior mirror 249 [ID (arrow) or 250 [ID (arrow):
• When another vehicle is overtaking your vehi-cle 249
• When overtaking another vehicle 250 with a speed difference of up to approximately 15 km/h (9 m ph). No display will be shown if the take-over manoeuvre is much faster.
The display in the exterior mirror will be shown ear-lier the faster you are nearing another vehicle as the lane change assist system calculates the
speed difference to other vehicles. For this reason, the display could be activated at different times de-spite your vehicle being at the same distance from other vehicles.
Physical and system-specific limits
The lane change assist system might, for example, interpret the traffic situation incorrectly in certain driving situations. In the following situations, for ex-ample:
• In tight bends.
• When road lanes are of varying width.
• At the brow of a hill.
• In poor weather conditions.
• Where there are special roadside structures, e.g. high or offset crash barriers. <1
Driver Alert System (recommendation for rest breaks)
o::n Introduction
This chapter contains information on the following subjects:
Function and operation by the user.. . . . 316
The Driver Alert System informs the driv-
er if their driving shows signs of tired-
ness.
Driver assist systems 315
Additional information and warnings:
• Volkswagen information system =>page 24
• Accessories, modifications, repairs and renewal of parts (information stored in the control units) =>page 394
A WARNING
The Intelligent technology used In the Driver Alert System cannot overcome the laws of physics, and functions only within the limits of the system. Do not let the extra conven-ience afforded by the Driver Alert System tempt you Into taking any risks when driving -this can cause accidents. During a long trip, plan regular and sufficient breaks.
• The driver Is responsible at all times for their fitness to drive.
• Never drive a vehicle when you are tired.
Fig. 251 On the instrument cluster display: Driver Alert System.
r--('n First read and observe the Introductory Information and safety warnings&. on page 315.
The Driver Alert System determines the driving be-haviour at the beginning of a journey and uses it to evaluate the tiredness of the driver. This is com-pared to the behaviour of the driver while actually driving. If the system detects that the driver may be tired, an acoustic warning signal ("gong") will sound and an explanatory message or symbol (BREAK or =>Fig. 251) will appear in the instrument cluster display. The message on the instrument cluster display appears for about five seconds and may be repeated once. The last displayed mes-sage is saved by the system.
The message in the instrument cluster display can be switched off by pressing the (OK/RESIT I button on the wiper lever or the@ button on the multifunc-
316 I Whole driving
A WARNING (Continued)
• The system cannot always detect the driv-er's level of alertness. Observe the Informa-tion In the section "Function limitations" =>page 316.
• In certain situations, the system may wrongly Interpret Intentional driving manoeu-vres as a lack of alertness from the driver.
• No urgent warning will be given In the event of the phenomenon known as "micro-sleep".
• Follow the Information on the Instrument cluster display and respond according to the commands.
m The Driver Alert System has been developed l!..J for use only while driving on highways and good roads.
m If there is a system fault, proceed to a quali-L!..J fied workshop immediately to have the sys-tem checked.
Functional limitations
The driving behaviour can be only be evaluated at speeds over approximately 65 kmlh (40 mph) and up to approximately 200 km/h (125 m ph).
Switching on and off
The system can be activated or deactivated in the Assistants menu =>page 24. A tick indicates that a driver assist system is switched on.
Function limitations
The Driver Alert System has system-related limita-tions. The following conditions can limit the func-tion of the Driver Alert System, or prevent it from working altogether:
• When travelling at speeds of less than approxi-mately 65 km/h (40 mph).
• When travelling at speeds of more than approx-imately 200 km/h (125 mph).
• Roads with bends.
• Roads with uneven surfaces.
• Adverse weather conditions.
• Sporty driving style. .,..
Function and operation
•
Fig. 252 In centre console: button for setting the adaptive chassis control.
r-f"n First read and observe the introductory Information and safety warnings & on page 317.
While the vehicle is in motion, the adaptive chassis control constantly adjusts the suspension charac-teristics to match the road surface and the current driving situation, in accordance with a preset pro-gramme.
Channel
"Comfort"@
"Normal"
"Sport" 0
Recommended driving situa-tions
Comfort-oriented chassis setup, e.g. when driving for extended trips on poor quality roads.
Balanced selling, e.g. for every-day use.
Sporty setting, e.g. for a sporty driving response.
Tyre monitoring system
CO! Introduction
This chapter contains information on the following subjects:
Indicator lamp .......................... 319
Function and control ..................... 321
The tyre monitoring system warn the
driver about low tyre pressures.
Additional information and warnings:
• Volkswagen information system ""page 24
• Transporting ""page 125
318 I While dnvmg
Selecting a programme
• Switch on the ignition.
• Press the (ili) button repeatedly until the re-quired programme Is displayed.
The "Normal" programme is active if neither® nor ®light up in the button. The selected programme will remain set even after the ignition has been switched off.
A WARNING
Adjusting the damping setting could alter the vehicle handling. The adaptive chassis con-trol must never tempt you into taking any risks when driving.
• Always adapt your speed and driving style to suit visibility, weather, road and traffic con-ditions.
m If there is a fault in the adaptive chassis con-l!:J trol, the displays® and 0 will flash in the but-ton. The driving comfort of the vehicle could be af-fected until the fault is fixed. Go to a qualified work-shop and have the system checked. <1
• Braking, stopping and parking :;.page 269
• Wheels and tyres =page 367
• Cleaning and caring for the vehicle exterior =page 380
• Accessories, modifications, repairs and renewal of parts =page 394
• Consumer information =page 404 .,.
A WARNING
The intelligent tyre monitoring system tech-nology cannot overcome the laws of physics, and functions only within the limits of the system. Incorrect handling of the wheels and tyres can lead to a sudden loss of pressure in the tyres, tread separation and even tyre blow-out.
• Check tyre pressures regularly and always maintain the specified tyre pressure value =>page 367. If the tyre pressure is too low, it is possible that the tyre temperature will in· crease to such an extent that the tread peels off and the tyre bursts.
• Always maintain correct cold tyre pres-sure as listed on the tyre pressure label =>page 367.
• Check tyre Inflation pressure regularly when the tyres are cold. Adjust tyre pressure in the cold tyre to the recommended tyre pressure for the tyres Installed on your vehi· cle as necessary.
• Check your tyres regularly for signs of wear or damage.
• Never exceed the top speed and load per-mitted for the fitted tyres.
CD
If valve caps are missing, the valve could be damaged. Always use valve caps that comply with the factory-fitted valve cap specifications. Always screw on valve caps fully. Do not use metal valve caps.
Indicator lamp
Under-inflated tyres will increase fuel con-W sumption and tyre wear. A higher tyre pres-sure generally reduces the fuel consumption. How-ever, the maximum tyre pressures specified by the manufacturer must always be adhered to.
m When new tyres are driven at high speeds for L!..J the first time, they can expand slightly and trigger a one-off pressure warning.
m Old tyres should only be replaced by tyres L!..J that have been approved by Volkswagen Commercial Vehicles for the vehicle type.
m Do not rely solely on the tyre monitoring sys-L!..J tern. Check your tyres regularly to ensure that they are properly inflated and have no signs of damage, such as punctures, cuts, cracks, and blis-ters. Remove any objects that become embedded in the tyre tread but have not penetrated into the body of the tyre itself.
m The tyre monitoring system is adjusted for L!..J the factory-recommended tyre pressures to be found on the tyre pressure label.
Lit upa) Possible cause=>& Solution
Do not drive on! Reduce speed immedi· ately. Stop the vehicle as soon as possible
The tyre pressure of one tyre or several and when safe to do so. Do not undertake
tyres has decreased considerably in com-any extreme steering or braking manoeuvres!
(l) parison to the tyre pressure set by the Check all wheels and tyre pressures, and cor-rect if necessary =>page 367. The damaged driver, or the structure of the tyre is dam-tyre should be replaced. The tyre monitoring aged. system will have to be re-synchronised after changing the tyre pressure, or after changing one or more wheels =>page 321.
a) An acoustic warning will also be sounded, and a corresponding message may appear 1n the instrument cluster display.
Driver assist systems I 319
Flashes a) Possible cause*& Solution
If the tyre pressure is correct, but the indicator lamp fails to go out after the ignilion is switch-
(l) System faulty. ed off and back on again and if it is not possi-ble to calibrate the tyre monitoring system, please go to a qualified workshop. Have the system checked.
•I Indicator lamp flashes for around 1 minute and then lights continuously.
Several warning and indicator lamps will light up briefly as a functional check when the lgnilion is switched on. They will go out after a few seconds.
A WARNING
Differing tyre pressures or tyre pressures that are too low can cause tyre failure, the loss of vehicle control, accidents, serious in-jury and death.
• If the Indicator lamp (l) lights up, stop the vehicle as soon as possible and check all the tyres.
• Different tyre pressures or tyre pressures that are too low can Increase wear on the tyres, reduce vehicle stability and Increase the braking distance.
• Differing tyre pressures or tyre pressures that are too low can cause sudden tyre failure and lead to a tyre burst and the loss of con-trol over the vehicle.
• The driver Is responsible for the correct tyre pressure of all tyres on the vehicle. The recommended tyre pressure can be found on the tyre pressure label 367.
• The tyre monitoring system cannot func-tion correctly until all cold wheels have the correct tyre pressure.
• The use of Incorrect tyre pressures can cause accidents and tyre damage. All tyres must always have the correct tyre pressure to suit the vehicle load.
• Always Inflate all tyres to the correct tyre pressure before every journey.
• If driven with Insufficient pressure, the tyre flexes more. This could warm up the tyre to such an extent that the tread may separate and the tyre could burst.
• High speeds and overloading of the vehi-cle may cause the tyres to heat up to such an extent that the tyre bursts, leading you to lose control of the vehicle.
320 I Whllo drivmg
A WARNING (Continued)
• If the tyre pressure Is too low or too high, the tyres will wear prematurely and the vehl-cle will not handle well.
• If the tyre Is not flat and it Is not necessary to change the wheel immediately, drive at low speed to the nearest qualified workshop and check and correct the tyre pressure.
A WARNING
Failure to observe illuminated warning lamps and text messages can lead to your vehicle breaking down In traffic, and can cause acci-dent and serious injury.
• Never ignore any illuminated warning lamps or text messages.
• Stop the vehicle as soon as possible and when safe to do so.
CD
Failure to observe Illuminated Indicator lamps and text messages can lead to your vehicle be-Ing damaged.
m If the tyre pressure is too low and this is de-L!..) tected while driving, the yellow indicator lamp lights up (l). An acoustic warning is also given, and a text notification may also be shown.
m If a system fault is detected while the ignition L!..J is switched on, the yellow Indicator lamp flashes (l) for around one minute and then lights up steadily. A text notification may also be displayed.
m Driving on unpaved roads for a long time or a L!..J sporty driving style could temporarily deacti-vate the tyre monitoring system. The Indicator lamp shows the functional fault, but disappears if the road conditions or driving style change.
Function and control
Fig. 253 In the stowage compartment on the front passenger side: button for the tyre monitoring sys-tem.
l"'"""f'n First read and observe the Introductory l.-J,.:,LL Information and safety warnings & on page 318.
The tyre monitoring system uses data from the ASS sensors and other functions to check the speed of rotation and the rolling circumference of the individual wheels. The rolling circumference of the wheels changes, if the tyre pressure is too low. This is then shown by the tyre monitoring sys-tem ill in the instrument cluster.
The operation of the tyre monitoring system is im-paired:
• If the tyre pressure has been changed manual-ly.
• If the tyre has structural damage.
• If the vehicle Is loaded more heavily on one side.
• If the wheels on one axle are loaded more heavily, e.g. high load level.
• If snow chains have been fitted.
• If one wheel per axle has been changed.
• When driving with a heavy trailer attached.
• If you are driving under winter conditions or on unsurfaced roads.
• When driving fast with hard acceleration and braking manoeuvres.
Synchronising the tyre monitoring system
The tyre monitoring system will have to be re-synchronised after changing the tyre pressure, or after changing one or more wheels. This also ap-plies for changing the wheels, e.g. from the front to the rear, and for changing from summer tyres to winter tyres.
The saved values must be reset before the system can be resynchronised.
• Switch on the ignition, and while the vehicle is stationary
• Press and hold the =>Fig. 253 button until an acoustic confirmation signal is emitted.
• OR: with some vehicle equipment options, you can open menu option Tyre pressure in the in-strument cluster display and save the new tyre pressures there =>page 24.
Once the saved values have been reset, the sys-tem calibrates itself independently to the fitted tyres and the tyre pressures filled by the driver dur-ing normal vehicle operation. The calibrated values are adopted and monitored after a long journey at various speeds.
If the wheels are loaded more heavily than normal, e.g. if the vehicle is carrying heavy payload, the tyre pressure must be raised to the recommended full-load tyre pressure before synchronisation =>page 367.
m The tyre monitoring system stops working if l!.J there is a fault in the ESC or ASS =>page 269.
m When using snow chains, an incorrect dis-l!.J play may be shown as the snow chains in-crease the tyre circumference =>page 367.
Air conditioning system
Heating, ventilating, cooling
o:n Introduction
This chapter contains information on the following subjects:
Controls for Climatic . . . . . . . . . . . . . . . . . . . . 323
Controls for Climatronic . . . . . . . . . . . . . . . . . 325
Controls for the heating and fresh air system . 327
Information on the air conditioning system . . . 328
..................... m
Air recirculation mode . . . . . . . • . . . . . . . . . . . . 330
Windscreen heating . . . . . . . . . . . . . . . . . . . . . 331
Roof ventilator . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Displays for the Climatronic information
Depending on the vehicle equipment level, infor-mation on the Climatronic is displayed briefly on the screen of the factory-fitted radio or navigation system.
The dust and pollen filter
The dust and pollen filter with activated charcoal reduces the level of impurities in the outside air en-tering the vehicle.
The dust and pollen filler must be changed regular-ly to avoid impairing the performance of the air conditioning system.
The dust and pollen filter must be changed more frequently than stated in the service schedule if the efficiency of the filter declines prematurely due to the vehicle being used in areas with high levels of air pollution.
Additional information and warnings:
• Exterior views 5
• Wipers/washer 116
• Supplementary heaters (auxiliary air heater or auxiliary coolant heater) 332
• Cleaning and caring for the vehicle exterior 380
A WARNING
Poor visibility through all windows increases the risk of collisions and accidents, which can cause serious injuries.
• Always ensure that all windows are free of ice, snow and mist to ensure good visibility.
3221 While driving
A WARNING (Continued)
• Maximum heat output, which Is needed to defrost the windows as quickly as possible, is only available when the engine has reached Its operating temperature. Do not start your journey until you have good visibil-Ity.
• Always ensure that the heating and fresh air system or the air conditioning system and the rear window heating are used correctly so that you have good visibility.
• Never use the air reclrculatlon mode for an extended period. If the cooling system Is switched off, the windows can mist up very quickly In air reclrculatlon mode and reduce visibility considerably.
• Always switch off the air reclrculatlon mode when it Is not required.
A WARNING
Stale air can quickly make the driver tired and affect their concentration, which In turn can cause collisions, accidents and serious Inju-ries.
• Never switch off the blowers or switch on the air recirculatlon mode for an extended pe· riod as this prevents fresh air from entering the vehicle interior.
• Repairs to the air conditioning system re-quire specialist knowledge and special tools. Volkswagen Commercial Vehicles recommends using a Volkswagen Commercial Vehicles deal-ership for this purpose.