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.
Capacities
r--('n First read and observe the introductory L-W.I information and safety warnings & on page 340.
Checks when filling the tank
r--r'n First read and observe the introductory L-W.I information and safety warnings & on page 340.
Checklist
Never carry out any work on the engine or in the engine compartment if you are not familiar with the necessary procedures and the general safety re-quirements or if the correct operating equipment, fluids and unsuitable tools are not available 350, Preparation for working in the engine compartment! The work should be carried out by a qualified workshop if you are uncertain. Please en-sure that the following are checked regular1y, pref-erably every time you fill the tank:
..( Windscreen washer fluid level 116
..( Engine oil level 353
Fuel
c:QJ Introduction
This chapter contains information on the following subjects:
Petrol
Diesel ...
344 345
Different engines require different fuels. The facto-ry-fitted sticker on the inside of the tank flap indi-cates the fuel type that is required for your particu-lar vehicle.
Volkswagen Commercial Vehicles recommends us-ing fuels with a low sulphur content or which are sulphur-free in order to reduce fuel consumption and prevent damage to the engine.
If the engine is not running smoothly or begins to judder, this can indicate poor or inadequate fuel quality, e.g. water in the fuel. If these symptoms appear, reduce the vehicle speed immediately and drive to the nearest qualified workshop at medium engine speeds, avoiding high engine loading. If these symptoms occur immediately after the vehi-
Fuel tank capacity
Approx. 80.0 I,
..( Engine coolant level 358
..( Brake fluid level 269
..( Tyre pressure 367
..( Vehicle lighting necessary for traffic safety:
-Turn signals
-Side lights, dipped beam headlights and main beam headlights
-Tail light cluster
-Brake lights
-Rear fog light 1 08
Information on changing bulbs 432.
cle has been refuelled, switch the engine off as soon as it is safe to do so and seek expert assis-tance. This can help to prevent further damage.
Additional information and warnings:
• Filling the tank 340
• Engine management system and exhaust puri-fication system 407
• Service schedule
A WARNING
Incorrect handling of fuel can cause explo-sions, fire, serious burns and other injuries.
• Fuel is highly explosive and inflammable.
• Never handle fuel near open flames, sparks or glowing matter (e.g. cigarettes).
• Keep naked flames, hot parts and sparks at a safe distance.
At the filling station 1343
Wheels and tyres
Useful information about wheels and tyres
o:::n Introduction
This chapter contains information on the following subjects:
Handling wheels and tyres .............. .
Rims
368
369
New wheels and tyres . . . . . . . . . . . . . . . . . . . 370 Tyre pressure . . . . . . . . . . . . . . . . 371
Tread depth and wear indicators 372 Tyre damage 373
Spare wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Tyre lettering . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
Winter tyres . . . . . . . . . . • . • • . . . . . . . . . . . . 378 Snow chains . . . . . . . . . . . . . . . . . 379
Volkswagen Commercial Vehicles recommends that work on tyres and wheels is carried out by a qualified workshop. They are familiar with the pro-cedure and have the necessary special tools and spare parts and the proper facilities for disposing of the old tyres. Volkswagen Commercial Vehicles recommends using a Volkswagen Commercial Ve-hicles dealership for this purpose.
Additional information and warnings:
• Transporting 125
• Towing a trailer 139
• Braking, stopping and parking 269
• Tyre monitoring system 318
• Cleaning and caring for the vehicle exterior 380
• Consumer information 404
• Vehicle tool kit 416
• Hubcaps 417
• Changing a wheel 420
• Breakdown set 425
A WARNING
New tyres or tyres which are old, worn down or damaged cannot provide full levels of vehi-cle control and braking power.
• Incorrect handling of wheels and tyres can reduce vehicle safety and cause accidents and serious injuries.
A WARNING (Continued)
• All four wheels must be fitted with radial tyres of the same type, size (rolling circum-ference) and the same tread.
• New tyres will have to be run In as they will initially have reduced grip and braking ef-fect. Drive particularly carefully for the first 600 km in order to prevent accidents and se-rious injury.
• Check tyre pressures regularly and always keep to the specified tyre pressure value. If the tyre pressure is too low, it Is possible that the tyre temperature will Increase to such an extent when driving that the tread peels off and the tyre bursts.
• Never drive with worn tyres or tyres that are damaged (cuts, cracks or blisters). Driv-Ing with tyres in this condition can result in blown tyres, accidents and serious Injuries. Worn or damaged tyres must be replaced as soon as possible.
• Never exceed the top speed and load per-mitted for the fitted tyres.
• The effectiveness of the driver assist sys-tems and brake support systems depends on the tyre grip.
• If you notice unusual vibration or if the ve-hicle pulls to one side when driving, stop the car immediately and check the wheels and tyres for damage.
• In order to reduce the risk of losing con-trol of the vehicle, and the risk of accident and serious injury, never loosen the bolts on rims with bolted on rim rings.
• Do not use wheels or tyres if you do not know their history. Used wheels and tyres could be damaged, even If the damage is not visible.
• Old tyres (even if never used) can sudden-ly Jose pressure or burst, especially at high speeds. This can cause accidents and seri-ous injuries. Avoid using tyres that are more than six years old. If you have no alternative, drive slowly and with extra care at all times.
m For technical reasons, it is not generally pos-L!.J sible to use the wheels from other vehicles. This can also apply to wheels of the same vehicle .,.
Wheels and tyres I 367
Storing tyres
Mark tyres before you remove them to indicate the direction of rotation. This ensures you will be able to mount them correctly when you replace them (left, right, front, rear). When removed, the wheels or tyres should be stored in a cool, dry and pref-erably dark place. Do not store tyres mounted on the rim vertically.
Any tyres not fitted on rims should be kept in suita-ble sleeves to protect against dirt and should be stored vertically (standing on the tread).
All-terrain tyres
Some vehicles can be fitted at the factory with "all-terrain tyres". These tyres have a deep-tread pro-file that alters the vehicle's driving properties (such as comfort, consumption, braking distance, corner-Ing behaviour, rolling noise)=>&.
A WARNING
Corrosive liquids and other substances can cause visible and Invisible damage to the tyres, which can cause the tyre to burst.
• Always keep chemicals, oils, lubricants, fuel, brake fluid and other corrosive substan-ces away from the tyres.
A WARNING
Old tyres (even if never used) can suddenly lose pressure or burst, especially at high speeds. This can cause accidents and seri-ous injuries.
• Avoid using tyres that are more than six years old. If you have no alternative, drive slowly and with extra care at all times.
Rims
,....-('n First read and observe the Introductory L-J.:.ll information and safety warnings & on page 367.
The design of the wheel bolts is matched to the rims. If different rims are fitted, the correct wheel bolts with the right length and correctly shaped bolt heads must be used. This ensures that wheels are fitted securely and that the brake system works properly =>page 420.
For technical reasons, it is not generally possible to use the wheels from other vehicles. This can al-so apply to wheels of the same vehicle type.
A WARNING
The deep-tread profile of all-terrain tyres can considerably increase the braking distance or cornering behaviour and thus cause acci-dents and serious injuries.
• Always bear the modified vehicle handling in mind, and drive carefully.
CD
Avoid heavy impacts and drive round obstacles whenever possible. Tyres, particularly low-pro-file tyres, can be considerably compressed and deformed by potholes and curb edges especial-ly. This can cause the tyre's webbing reinforce-ment to brake, and cause dents or rips on the side walls or deformations or cracks on the rims.
Old tyres should be disposed of as required !!IS by legislation.
Wheel bolts
Wheel boils must always be tightened with the cor-rect tightening torque =>page 420.
Rims with bolted-on rings
Rims with bolted-on rings consist of several com-ponents. These components are fastened using special bolts and special fastening technology. This ensures that the wheel functions proper1y, does not leak, remains safe and runs true. For this reason, damaged rims should be replaced. They may only .,..
Wheels and tyres I 369
A wARNING
New tyres will have to be run in as they will Initially have reduced grip and braking effect.
• Drive particularly carefully for the first 600 km in order to prevent accidents and se-rious injury.
A WARNING
Wheels must have the necessary freedom of operation. If the wheels do not have the nec-essary freedom of operation, the tyre could rub on parts of the running gear, the vehicle body and the brake lines. This can lead to a fault in the brake system and to tread separa-tion and thus to a tyre bursting.
Tyre pressure
r-T'n First read and observe the introductory L-k.U Information and safety warnings & on page 367.
The correct tyre pressure for factory-fitted tyres is shown on the tyre pressure label and applies to all-season, summer and winter tyres. The tyre pres-sure label is located on the lock column on the left front door.
If the tyre pressure is too low or too high, the tyres will wear prematurely and the vehicle will not han-dle well => &. The correct tyre pressure is particu-larly important at high speeds. Incorrect tyre pres-sure causes premature wear and can cause a tyre burst.
The pressure should therefore be checked at least once a month and before starting a journey.
The given tyre pressure applies to cold tyres. Tyre pressure is always higher in warm tyres than it is in cold tyres.
For this reason, never reduce the pressure in warm tyres to adjust the tyre pressure. This would result in low tyre pressures that could potentially cause the tyre to burst suddenly.
Checking tyre pressure
Always check the tyre inflation pressure on "cold" tyres. A "cold" tyre can be defined as one on a ve-hicle that has only been driven a few kilometres (miles) within 3 hours prior to the test and at low speeds.
A WARNING (Continued)
• The actual tyre size must not exceed the tyre dimensions of manufacturers approved by Volkswagen Commercial Vehicles and must not rub on any vehicle body parts.
m Despite identical size details, the actual size L!..J of the various tyre makes may vary from these specified dimensions, or the tyre contours may vary considerably.
m Volkswagen Commercial Vehicles-approved L!..J tyres are guaranteed to have the dimensions that are suitable for the vehicle. The salesperson will have to provide a certificate from the tyre man-ufacturer for other tyre makes to prove that the tyre is also suitable for the vehicle. This certificate must be stored in a safe place in the vehicle.
• The tyre pressures must be adjusted to suit a heavy vehicle load.
• After altering the tyre pressures, please ensure that the valve caps are screwed on and observe any information and instructions on setting the tyre monitoring system =>page 318.
The temporary spare wheel is filled to the highest tyre pressure permissible for the vehicle.
A WARNING
Too high or too low a pressure may cause the tyre to suddenly lose pressure or burst while the vehicle is in motion. This can cause seri-ous accidents and fatal Injuries.
• If the tyre pressure Is too low, it is possi-ble that the tyre temperature will increase to such an extent when driving that the tread peels off and the tyre bursts.
• Fast speeds or overloading of the vehicle can cause overheating, sudden tyre damage including tyre bursts and ripping of the tread surface and thus to a loss of control of the vehicle.
• If the tyre pressure is too low or too high, the tyres will wear prematurely and the vehi-cle will not handle well. .,.
Wheels and tyres 371
A WARNING (Continued)
• Check tyre pressures regularly, at least once a month, and before every long journey.
• All tyres must have the correct tyre pres-sure to suit the vehicle load.
• Never reduce excess pressure when the tyres are warm.
CD
• When attaching the tyre pressure gauge make sure that you do not position it at an an-gle to the valve shaft. This can damage the tyre valve.
Tread depth and wear indicators
Fig. 281 Tread wear indicator.
r-fl1 First read and observe the Introductory L-.lo:::.l.l Information and safety warnings & on page 367.
Tread depth
Difficult driving situations demand the deepest pos-sible tread depth for the tyres and the same tread depth for the tyres on the front and rear axles. This applies in particular for driving in winter weather and cold temperatures and in wet conditions=>&.
In most countries, the minimum tread depth re-quired by law is 1.6 mm (measured in the tread grooves next to the tread wear indicators). Ob-serve any country-specific legal requirements.
Winter tyres lose a large degree of their effective-ness when the tread is worn down to a depth of 4mm.
3721 Cleaning and maintenance
CD
• Missing valve caps, or valve caps that are not suitable or not screwed on properly, can cause damage to the tyre valve. Always use valve caps that comply with the factory-fitted valve cap specifications. Always screw on valve caps fully.
Under-infiated tyres can contribute to an in-I!IS crease in fuel consumption.
m If the tyre monitoring display warns that the W tyre pressure in at least one tyre is too low, check tyre pressures with a functioning tyre pres-sure tester. Low tyre pressure cannot be deter-mined exclusively by looking at the tyre. This also applies to tyres with a low profile.
m Please refer to the special points of the tyre W monitoring system when checking tyre pres-sures =>page 318.
Tread wear indicator in tyres
The original tyres on your vehicle have 1.6 mm high tread wear indicators running across the tread =>Fig. 281. These wear indicators are positioned at set intervals around the tyre. Markings on the tyre sidewall (for instance the letters "TWI" or other symbols) indicate the positions of the tread wear indicators.
The tread wear indicators show if a tyre is worn down. The tyre must be replaced at the latest when the tread depth is just down to the tread wear indicator.
A WARNING
Worn tyres are a safety risk and can lead to a loss of control of the vehicle and cause seri-ous Injury.
• Tyres must be replaced at the latest when the tread Is worn down to the tread wear Indi-cators.
• Worn tyres have considerably less tread, particularly on wet roads, which can cause the vehicle to glide along the road surface (aquaplaning).