ice warning VOLKSWAGEN TRANSPORTER 2014 Repair Manual

heavy load on the brakes should be avoided. For example, when driving too close to the vehicle ahead.
The rate of wear of the brake pads depends to a great extent on the conditions under which the ve-hicle is operated and the way in which the vehicle is driven. With regular urban trips, short journeys and a sporty driving style, the brake pads must be checked by a qualified workshop more regularly than stated in the service schedule.
When driving with wet brakes, for example after driving through water, after heavy rainfall or after washing the vehicle, the braking effect may be de-layed as the brake discs will be wet, or possibly ic-ed up (in winter). The brakes must be "dried" as quickly as possible by careful braking at higher speed. Ensure that no vehicle behind you or no other road user is put at risk as a result of this ac-
Any salt layer accumulating on the discs and pads will delay the braking effect and increase the braking distance. If the brakes on the vehicle have not been applied for a long time on roads that have been gritted with salt, the layer of salt must be re-duced through careful braking &.
Corrosion on the brake discs and dirt in the brake pads are facilitated through long periods of inactivi-ty, low mileage and low load levels. With inactivity or low use levels for the brake pads as well as cor-rosion, Volkswagen Commercial Vehicles recom-mends that the brake discs and brake pads be cleaned by braking strongly several times from high speed. Ensure that no vehicle behind you or no other road user is put at risk as a result of this
Fault in the brake system
A brake circuit may have failed if you have to re-duce speed and the vehicle does not brake as nor-mal (sudden increase in braking distance). This will be indicated by the warning lamp m and in some cases a text message. Go to the nearest qualified workshop immediately to have the fault corrected. Drive at low speed when doing this and anticipate much longer braking distances and an increase in the pressure required on the pedal.
Brake servo
The brake serve will only function when the engine is running and reinforces the pressure applied by the driver on the brake pedal.
If the brake serve is not functioning or the vehicle is being towed, the brake pedal will have to be de-pressed more forcefully as the braking distance will be increased due to the lack of assistance for the brake system &.
A WARNING
New brake pads will not have the optimal braking effect when first fitted.
• New brake pads cannot generate the full braking effect during the first 300 km and must first be run In. A reduced braking effect can be Increased by applying more pressure to the brake pedal.
• You must drive particularly carefully when driving with new brake pads In order to re-duce the risk of accidents, serious Injuries and loss of control of the vehicle.
• Never drive too close to other vehicles when running in new brake pads, and never create a driving situation that will place a heavy load on the brakes.
A WARNING
Overheated brakes reduce the braking effect and considerably Increase the braking dis-tance.
• When driving downhill the brakes are placed under particular strain and become hot very quickly.
• Before driving down a long, steep gradi-ent, reduce speed and change to a lower gear or move the selector lever to a lower position. This will make use of the engine braking ef-fect and relieve the load on the brakes.
• Non-standard or damaged front spoilers could restrict the airflow to the brakes and cause them to overheat.
A WARNING
Wet brakes or brakes coated with ice or road salt react more slowly and require longer braking distances.
• Carefully apply the brakes to test them.
• Always dry brakes and clean off any coat-Ing of Ice and salt with a few cautious appli-cations of the brake when visibility, weather, road and traffic conditions permit.
A WARNING
Driving without the brake servo can consider-ably Increase the braking distance and thus cause accidents and serious Injuries.
• Never allow the vehicle to roll if the engine Is switched off.
Starting the engine, changing gear and parking 273

A WARNING (Continued)
• Although the brake support systems are very effective and can help to control the ve-hicle in difficult driving situations, please al-ways remember that the driving stability of the vehicle depends on the tyre grip.
• When accelerating on a slippery surface, for example on ice and snow, press the accel-erator carefully. The wheels can spin even when brake support systems are active, and this can lead to a loss of control of the vehl-cl e.
A WARNING
ESC will be considerably less effective if oth· er components and systems that affect driv-ing dynamics are not serviced correctly or are not functioning properly. This also ap-plies, but not exclusively, to the brakes, tyres and other systems that have already been named.
Switching the TCS on and off
BSO·OC40
Fig. 224 in the centre console: button for switch-ing the TCS on and off manually.
.-m First read and observe the introductory l-J=J.I information and safety warnings & on page 269.
276 Wh1lo driving
A WARNING (Continued)
• Please always note that modifications and changes to the vehicle can affect the function of the ABS, BAS, EDL, TCS and ESC.
• Alterations to the suspension system or the use of non-approved wheel and tyre com-binations can affect the function of ABS, BAS, TCS, EDL and ESC and reduce their ef· fectiveness.
• Suitable tyres are also crucial if ESC is to function optlmaliy =>page 367.
m The ESC and TCS can only function properly L.:U if ail 4 wheels are fitted with the same tyres. Any differences in the roiling radius of the tyres can cause the system to reduce engine power unex-pectedly.
m If there is a fault in the ABS, the ESC, TCS lU and EDL will also stop working.
m Operating noises may be heard during the L.:U self-regulation processes of the systems ex-plained above. The Electronic Stability Control (ESC) only func-tions when the engine is running. lt consists of ABS, EDL and TCS.
When the engine is running, the TCS can be switched off by pressing the@ 224 button. The TCS should only be switched off in certain sit-uations when the traction achieved is not sufficient. For example:
• When driving in deep snow or on loose surfa-ces.
• When rocking the vehicle backwards and for-wards to free it from mud.
Then press the@ 224 button to switch the TCS back on.

Brake fluid
B7E.02AO
Fig. 225 In the engine compartment: cap on the brake fluid container.
r-111 First read and observe the Introductory l-Jr:,U Information and safety warnings&. on page 269.
Brake fluid will gradually absorb water from the surrounding air. The brake system will be damaged if there is too much water in the brake fluid. The boiling point of the brake fluid is also considerably reduced by the water content. Heavy use of the brakes may cause a vapour lock in the brake sys-tem if the water content is too high. Vapour locks reduce levels of braking power, considerably in-crease braking distance and can even cause the brake system to fail completely. Your own safety and that of other road users depends on having a brake system that functions properly at all times
Brake fluid specification
Volkswagen has developed a brake fluid that has been optimised for the brake system in the vehicle. To ensure optimal operation of the brake system, Volkswagen Commercial Vehicles recommends the use of brake fluid compliant with VW stand-ard 501 14.
Before using a particular brake fluid, check that the specifications printed on the container correspond to the vehicle requirements.
Brake fluid that is compliant with VW stand-ard 501 14 is available from Volkswagen Commer-cial Vehicles dealerships.
If this brake fluid is not available and it is necessa-ry to use another high-quality brake fluid instead, brake fluid that is compliant with DIN ISO 4925 CLASS 4 or US standard FMVSS 116 DOT 4 can be used.
Not all brake fluids that are compliant with DIN ISO 4925 CLASS 4 or US standard FMVSS 116 DOT 4 have the same chemical com-position. Some of these brake fluids may contain chemicals that can damage or destroy brake sys-tem components over time.
To ensure sustained optimal operation of the brake system, Volkswagen Commercial Vehicles there-fore recommends the use of brake fluid that is compliant with VW standard 501 14.
Brake fluid that is compliant with VW stand-ard 501 14 fulfils the requirements of DIN ISO 4925 CLASS 4 or US standard FMVSS 116 DOT 4.
Brake fluid level
The brake fluid level must always be between the MIN and MAX marking of the brake fluid container or above the MIN marking &.
The brake fluid level cannot be checked accurately in all models as engine components may partially conceal the brake fluid container. If the brake fluid level cannot be read exactly, please go to a quali-fied workshop.
The brake fluid level drops slightly when the vehi-cle is being used as the brake pads wear and the brakes are automatically adjusted.
Changing the brake fluid
The brake fluid must be changed as indicated in the service schedule Service schedule. The brake fluid should be changed by a qualified workshop. Volkswagen Commercial Vehicles rec-ommends using a Volkswagen Commercial Vehi-cles dealership for this purpose. Only brake fluid that confonns with the required specification should be used.
A WARNING
Brake failure or reduced braking effect can be caused by the brake fluid level being too low or by brake fluid that Is too old or unsuitable.
• The brake system and brake fluid level must be checked regularly.
• The brake fluid should be changed regu-larly, according to the service schedule Service schedule.
• Heavy use of the brakes may cause a va-pour lock If the brake fluid Is left In the sys-tem for too long. Vapour locks reduce levels
Starting the engine, changing gear and parking I 277

A WARNING (Continued)
of braking power, considerably increase brak-ing distance and can cause the brake system to fail completely.
• Please ensure that the correct brake fluid is used. Only use brake fluid that Is explicitly compliant with VW standard 501 14.
• Any other brake fluid or a low-quality one can affect the functioning of the brakes and reduce their effectiveness.
• If a brake fluid compliant with VW stand-ard 501 14 Is not available, use a high-quality brake fluid compliant with DIN ISO 4925 CLASS 4 or the US standard FMVSS 116 DOT 4, but only in exceptional circumstances.
• The refilled brake fluid must be new .
A wARNING
Brake fluid is toxic.
• In order to reduce the risk of poisoning, never use bottles or other containers to store brake fluid. These containers could encour-age other people to drink out of them, even if they are labelled otherwise.
• Brake fluid must always be stored in its original sealed container and kept out of the reach of children.
CD
Brake fluid that has leaked or been split can damage the vehicle palntwork, plastic parts and tyres. Brake fluid that has leaked or been split should be cleaned off the vehicle paint-work and other components Immediately.
& Brake nuid can pollute the environment. Any W spilt service nuids must be cleaned up and disposed of properly. Driving with respect for the environment
o:::n Introduction
This chapter contains information on the following subjects:
An economic driving style . . . . . . . . . . . . . . . . . 278
Saving fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Fuel consumption, environmental impact and wear on the engine, brakes and tyres depend largely on three factors:
• Personal driving style.
• Conditions of use (weather, road surface).
• Technical conditions.
An economic driving style
i""1"'n First read and observe the introductory L-J,:.U information and safety warnings & on page 278. .,.
278 I While drivmg
A few simple measures can help save fuel by up to 25%, depending on how you drive.
A WARNING
Adapt your speed and distance from the vehi-cles ahead to suit visibility, weather, road and traffic conditions.

Saving fuel
1/100 km
-10°C
+20 oc
L----------------tkm 5 15 25 30
en-o11S
Fig. 226 Fuel consumption in litres per 100 km at two different outside temperatures.
r-1"'11 First read and observe the Introductory Information and safety warnings&. on page 278.
By adopting an economical driving style and antici-pating the traffic situation ahead, you can easily re-duce fuel consumption by 10-15%.
Cars use most fuel when accelerating. If you think ahead when driving, you will need to brake less and thus accelerate less. Wherever possible, let the car roll slowly to a stop, for instance when you can see that the next traffic lights are red.
Avoid short journeys
Directly after a cold start, the engine has a very high fuel consumption. The engine reaches its working temperature after a few kilometres, when fuel consumption will return to a normal level.
The engine and catalytic converter need to reach their proper working temperature in order to mini-mise fuel consumption and emissions. The out-side temperature is a key factor.
The different rates of fuel consumption for the same distance at both +20"C (+68"F) and at -10"C (+14"F) are shown in Fig. 226.
Therefore, avoid making too many short journeys and car share whenever possible.
Under the same conditions, the vehicle will use more fuel in winter than in summer.
280 I While dnvmg
Not only is it illegal in some countries to "warm up" the cold engine by running it while the vehicle is stationary, it is also technically unnecessary and a waste of fuel.
Adjust the tyre pressure
The correct tyre pressure reduces rolling resist-ance and therefore also fuel consumption.
Ensure that any new tyres purchased have opti-mum rolling resistance.
Use low viscosity engine oils
Fully synthetic low viscosity engine oils reduce fuel consumption. Low viscosity engine oils decrease frictional resistance in the engine and spread bet-ter and more quickly, especially for cold starts. They are especially effective In vehicles that make alotofshortjourneys.
Always ensure that the engine oil level is correct and that you keep to the service intervals (oil change intervals).
When buying engine oil, always make sure it com-plies with engine oil norms and has been approved by Volkswagen Commercial Vehicles.
Avoid unnecessary loads
Lighter vehicles are more economical and have lower environmental impact. An extra 100 kg, for example, can increase fuel consumption by up to 0.311100 km.
Remove all unnecessary objects and loads from the vehicle.
Remove any unnecessary special equipment and accessories
The more aerodynamic a vehicle, the lower its fuel consumption. Special equipment and accessories, such as roof carriers or bicycle carriers, make the vehicle less aerodynamic.
You should therefore remove any special equip-ment and luggage carriers that are not in use, es-pecially if you are going to be driving at high speeds.

ParkPilot
o:n Introduction
This chapter contains information on the following subjects:
ParkPilot only at rear . . 288 ParkPilot front and rear . . . 289
ParkPilot signal tones and displays . 290
The Park Pilot assists the driver when
parking and manoeuvring.
The ultrasound sensors in the bumpers transmit and receive ultrasound waves. The electronic sys-tem uses the ultrasound waves (i.e. transmission, reflection from the obstacle and reception) to cal-culate the distance between the bumper and the obstacle.
Additional information and warnings:
• Exterior views =:o page 5
• Braking, stopping and parking =:o page 269
• Reversing camera (Rear Assist) =:o page 291
• Cleaning and caring for the vehicle exterior =:.page 380
• Accessories, modifications, repairs and renewal of parts =:o page 394
• Radio or navigation system =:o Booklet Radio, provision for mobile telephone, infotainment sys-tem, navigation system
A WARNING
ParkPilot technology cannot overcome sys-tem-related vehicle limitations. The ParkPilot cannot replace the full concentration of the driver.
• Unintentional vehicle movements can cause serious injury.
• Always adapt your speed and driving style to suit visibility, weather, road and traffic con-ditions.
• Ultrasound sensors have blind spots in which obstacles and people cannot be detec-ted.
• Always check the area around the vehicle as the ultrasound sensors will not always de-tect infants, animals and objects.
A WARNING (Continued)
• Certain surfaces of objects and clothes cannot reflect the signals from the ultrasound sensors. The system is unable to detect these objects or people wearing this type of clothing, or they may be detected incorrectly.
• External sources of sound can affect the signals of the ultrasound sensors. This may prevent the system from recognising people or objects.
CD
Various factors can negatively Impact the Park-Pilot functions or lead to damage to the vehicle and objects in the area surrounding the vehi-cle.
• The ultrasound sensors may not always be able to detect objects such as trailer drawbars, thin rails, fences, posts, trees and open or opening boot lids. This can result in damage to your vehicle.
• If the ParkPilot has detected an obstacle and issued a warning, the obstacle may move out of the detection range of the ultrasound sensors as the vehicle approaches it, particu-larly if the object is very high or very low. These objects are no longer registered.
• The vehicle can sustain considerable dam-age if the warning given by the ParkPiiot is ig-nored.
• Ultrasound sensors can be displaced or damaged through Impacts, e.g. when parking.
• The ultrasound sensors must be kept clean and free of ice and snow, and must not be cov-ered up by stickers or other objects, as this will prevent the system from working properly.
• Repainting the ultrasound sensors can im-pair the function of the Park Pilot.
• The ultrasound sensors should only be sprayed briefly when cleaning with pressure hoses and steam cleaners. The steam/hose nozzle must always be kept more than 10 cm away from the ultrasound sensors.
• Sources of noise can lead to errors in the ParkPilot system, e.g. rough asphalt, cobble-stones, induction loops, building equipment, or interference from other vehicles.
Driver assist systems 287

CD
• In some cases water and ice on the ultra-sound sensors could be registered as an ob-struction.
• Any equipment that has been retrofitted to the vehicle, e.g. bicycle carriers or number plate holders, can prevent the ParkPIIot from fu nctlonlng properly.
m Volkswagen Commercial Vehicles recom-L!J mends that drivers practise using the ParkPi-lot in a traffic-calmed area or car park to allow them to familiarise themselves with the system and its functions.
ParkPilot only at rear
,....-m First read and observe the introductory L-J.:.I.I Information and safety warnings & on page 287.
Switching ParkPilot on and off
m If an ultrasound sensor fails, the correspond-L!J ing area of the ultrasound sensor cluster is switched off and cannot be reactivated until the fault has been rectified (depending on the equip-ment level). Consult a qualified workshop in the event of a system fault. Volkswagen Commercial Vehicles recommends using a Volkswagen Com-mercial Vehicles dealership for this purpose. The Park Pilot uses ultrasound sensors to deter-mine the distance between the rear bumper and an obstacle. There are 4 ParkPilot ultrasound sensors in the rear bumper (arrows).
Function What to do when the Ignition Is switched on
Switching on the ParkPilot:
Switching off the ParkPilot:
Switching off the ParkPilot display manually (sound output remains active)
Switching to the rear view camera system picture as required
Select reverse gear or move the selector lever to position R.
Deselect the reverse gear or selector lever position R. If the ParkPilot screen display is activated, the ParkPilot is switched off approximately 10 seconds after the reverse gear has been disengaged or the selector lever has been moved out of the R position.
OR: (depending on the equipment level) immediately after shifting out of re-verse gear, or selector lever position R, with an inactive ParkPilot screen dis-play.
OR: accelerate forwards to a speed greater than approximately 1 0-15 km/ h (6-9 mph).
Press a button, e.g.(RADIOl. on the factory-fitted radio or navigation system.
OR: touch the 0 function button.
Select reverse gear or move the selector lever to position R.
OR: touch the button.
Special features of ParkPilot • No acoustic signal is given in vehicles with a dual clutch gearbox DSG® if the selector lever is in position P. • In some cases, the ParkPilot registers water and ice on the ultrasound sensors as an obstacle.
• The acoustic warning will become quieter after a few seconds if the distance remains the same. The volume will remain constant if the signal tone is continuous.
• The intermittent signal tone switches off auto-matically as soon as the vehicle moves away from an obstacle again. If the vehicle approaches the obstacle again, the acoustic warning is switched on automatically.
288 I While driving
• The ParkPilot ultrasound sensors cannot be switched on if the factory-fitted towing bracket is electrically connected to the trailer.
• A Volkswagen Commercial Vehicles dealership can adjust the volume of the acoustic warning sig-

Special features of ParkPilot
• In some cases, the ParkPilot registers water and ice on the ultrasound sensors as an obstacle.
• The acoustic warning will become quieter after a few seconds if the distance remains the same. The volume will remain constant if the signal tone is continuous.
• The intermittent signal tone switches off auto-matically as soon as the vehicle moves away from an obstacle again. If the vehicle approaches the obstade again, the acoustic warning is switched on automatically.
• No acoustic signal is given in vehicles with a dual clutch gearbox DSG® if the selector lever is in position P.
ParkPilot signal tones and displays
Fig. 232 ParkPilot screen display (colour display).
r--f"'n First read and observe the introductory L-.I=.U Information and safety warnings & on page 287.
Key to diagram
Fig. 232 Meaning
® Monitored area behind the vehide.
® Scanned area in front of the vehicle.
l J
•
0
•
290 I
The yellow segment represents an obstacle in the vehicle's path.
Red segment depicts an obstacle close to the vehicle.
The grey segment represents an obstacle outside of the vehicle's path.
Black segment depicts an obstacle (monochrome display).
While droving
• The rear ultrasound ParkPilot sensors cannot be switched on if the factory-fitted towing bracket is electrically connected to the trailer.
• A Volkswagen Commercial Vehicles dealership can adjust the volume of the acoustic warning sig-nals.
CD
Failure to observe the illuminated text messag-es can lead to the vehicle being damaged. The areas to the front and rear of the vehicle that are scanned by ultrasound sensors are shown on the screen of the factory-fitted radio or navigation system. The positions of potential obstacles are displayed relative to the vehicle &.
The areas to the front (only with ParkPilot front and rear) and rear of the vehicle are fully scanned by the ultrasound sensors.
Acoustic signals and screen
Acoustic signals are given when the vehicle ap-proaches an obstacle located in the range of the ultrasound sensors. An intermittent signal tone is given if a sufficiently short distance between the vehicle and an obstacle is detected. The shorter the distance, the shorter the intervals. The signal tone will sound continuously if the obstacle is very close.
If you continue to drive the vehide closer to the ob-sta de despite the continuous signal tone, the sys-tem will no longer be able to measure the distance.
With some vehicle equipment levels the scanned areas may be displayed as several segments in a display. The closer the vehicle drives lowards an obstacle, the closer the segment will move to the vehicle in the display. The collision area has been reached when the penultimate segment is dis-played, if not before. Do not drive onl .,..

A WARNING (Continued)
• The camera lens enlarges and distorts the field of vision and the objects on the screen will not be depicted as precisely and accu-rately as they are In reality.
• Certain objects, for example narrow posts or railings, may be difficult or Impossible to see on the screen because of its low resolu-tion or poor light conditions.
• The rear view camera system has blind spots within which obstacles and people can-not be detected.
• Keep the camera lens clean, free of snow and Ice and do not cover it.
A WARNING
The Intelligent rear view camera system tech-nology cannot overcome the laws of physics, and functions only within the limits of the system. Careless or unintentional use of the rear view camera system can cause accl· dents and lead to serious Injury. The system is not a substitute for the full concentration of the driver.
• Always adapt your speed and driving style to suit visibility, weather, road and traffic con· ditions.
General information
r'""'('n First read and observe the Introductory L-J,::.U information and safety warnings & on page 291.
Requirements for parking and manoeuvring while using the rear view camera system
Checklist
./ The tailgate must be closed.
./ The camera must give a clear and accurate image, i.e. there must be good visibility and the camera lens must be clean =:o Fig. 233.
./ There must be a clear and unobstructed view of the area behind the vehicle.
./ The rear of the vehicle must not be heavily loaded.
2921 While driving
A WARNING (ConUnued)
• Keep looking In the direction In which you are parking and at the relevant area sur-rounding the vehicle. The front of the vehicle swings out more than the rear of the vehicle.
• Do not allow the Images shown on the screen to distract you from the traffic around you.
• Always monitor the area around the vehi· cle as small children, animals and objects will not always be detected by the rear view cam-era system.
• The rear view camera system may not be able to display all areas clearly.
• The rear view camera system should only be used when the tallgate is fully closed.
CD
• The rear view camera system shows only two-dimensional images on the screen. The lack of depth of field means that potholes and protruding objects on the ground may only be detected with difficulty, or may not be detected at all.
• The rear view camera system may notal· ways be able to detect objects such as thin rails, fences, posts, trees etc. This could result In damage to your vehicle. ./ The driver must be familiar with the system.
./ The vehicle must be undamaged. The rear view camera system must be checked by a qualified workshop if the position or angle of the camera has changed, e.g. following a rear impact.
Volkswagen Commercial Vehicles recommends that you practise parking with the reversing camera in a traffic-calmed area or car park with good visi-bility and weather conditions, so that you can famil· iarise yourself with the system, orientation lines and guiding functions in a safer environment.
Rear view camera system settings
Various settings, including brightness, contrast and colour, can be by touching the relevant function buttons 1j or G. or by moving the corre-sponding slider.
• Stop the vehicle in a safe place.
• Apply the handbrake firmly.
• Switch on the ignition.

• Switch on radio/navigation system, if not al-ready on.
• Select reverse gear or move the selector lever to position R.
Camera
Fig. 233 In the tailgate: location of the rear view camera system.
....--r'n First read and observe the Introductory L.-J,:.U information and safety warnings & on page 291.
The reversing camera 233 provides two-di-mensional images only. Due to the lack of depth of field on the screen, potholes and dips in the ground, protruding parts on another vehicle or pro-truding objects on the ground may be difficult or impossible to see on the image.
Objects or other vehicles may appear closer or fur-ther away on the screen than they actually are.
Optical Illusions created by the rear view cam-era system (examples):
-If you drive from a level surface onto an upward or downward slope.
-If you drive from an upward or downward slope onto a level surface.
-If the vehicle Is heavily loaded towards the rear.
-When approaching protruding objects. Such ob-jects can leave the camera's field of vision while you are reversing.
• Touch the button.
• Select the required settings in the menu.
Cleaning the camera lens
Keep the camera lens 233 clean and free of ice and snow:
• Stop the vehicle in a safe place.
• Apply the handbrake firmly.
• Moisten the lens with a commercially available alcohol-based glass cleaner and clean the lens with a dry cloth
• Remove snow with a brush.
• Remove ice with a de-icer spray
CD
• Never use an abrasive cleaning product to clean the lens.
• Never use warm or hot water to remove snow and ice from the lens of the camera. This could damage the lens.
Driver assist systems 293