roof VOLKSWAGEN TRANSPORTER 2018 Workshop Manual

The batteries will become depleted if electrical consumers such as the auxiliary heater, refrigera-tor box or interior lights are used while the vehicle is stationary for long periods of time without re-charging the batteries. If the battery voltage falls below 11.5 volts, the auxiliary heater cannot be switched on.
The battery compartment and the battery charger are designed specifically for the factory-fitted AGM (absorbed glass mat) batteries &.
Additional batteries
r--f'n First read and observe the introductory information and safety warnings & on page 242.
The factory-fitted AGM batteries are located under the left front seat and in the wardrobe. They have deep discharge protection.
Should the additional batteries be subjected to deep discharge over a long period of time, they could be destroyed.
You can prevent deep discharge by:
• switching off the central control panel after charging,
• removing the fuses for the fresh water pump and the pop-up roof as necessary 249.
AGM batteries are maintenance free. do not leak their electrolyte, are robust and have extremely low gas emissions.
When should the additional battery be charged?
• If the additional battery is not charged by the al-ternator while the engine is running, the additional battery must be charged on the battery charger at regular intervals -every 4 weeks at the latest-for at least 12 hours.
• The additional battery must be recharged for at least 12 hours before the start of a journey if the battery has not been used for an extended period (e.g. seasonal use).
248 I Before the JOurney
A WARNING
If a conventional battery Is charged it will give off a highly explosive mixture of gases.
• Use only AGM batteries of the same type (batteries with the electrolyte absorbed Into a special fibreglass matting) and with the same specifications as the factory-fitted batteries.
• Never use conventional batteries (wet cells with liquid electrolyte). A WARNING
If a conventional battery Is charged it will give off a highly explosive mixture of gases.
• Use only AGM batteries of the same type (batteries with the electrolyte absorbed into a special fibreglass matting) and with the same specifications as the factory-fitted batteries.
• Never use conventional batteries (wet cells with liquid electrolyte).

Fuses for the camping equipment
87E-0221
Fig. 214 Under the left front seat: fuse box.
l"""'('n First read and observe the introductory L-Jr:,.U information and safety warnings & on page 242.
Colour
Purple
beige
Brown
Red
Blue
Yellow
White or clear
Green
Orange
beige
Colour coding of fuses
Electrical consumers
Battery charger
Pop-up roof
Reading lights
Refrigerator box
Water pump
Central control panel
Fuse table
In some vehicles, the locations of fuse blocks could vary from the those shown In the table. How-ever, since the order of the amp ratings is identical within any individual fuse block, you will still be able to identify the electrical consumers if this is the case.
The fuses for the camping equipment electrical consumers are located under the left front seat 214. Other vehicle parts will have to be re-moved in order to gain access to the fuse box. If you are unsure, have the fuses changed by a qualified workshop.
Several electrical consumers could share a single fuse. Conversely, a single consumer could have more than one fuse.
Therefore fuses should only be replaced when the cause of the fault has been rectified. If a new fuse blows shortly after insertion, have the electrical system checked by a qualified workshop as soon as possible.
Amp rating
3
5
7.5
10
15
20
25
30
40
80
Fuse number (amp rating in Fig. 214
16 (30)
17 (30)
18 (10)
19 (10)
20 (5)
21 (5)
A WARNING
Using unsuitable or repaired fuses and bridg-Ing an electrical circuit without fuses can cause a fire and serious injuries.
Equipment, California 249

A WARNING
Never program the supplementary heating system so that Is switched on and run In un-ventilated or enclosed areas. The fumes from the supplementary heating system contain carbon monoxide, which is an odourless and
Practical tips, California
o::n Introduction
This chapter contains information on the following subjects:
Before setting off . . . . . . . . . . . . . . . . . . . . . . . . 252 Before you take a road trip . . . . . . . . . . 252
Actions to take during thunderstorms 253
Winter conditions . . . . . . . . . . . . . . . . . . 253
Cleaning cupboards, cooker and sink . 253
Cleaning the display of the central control panel . . . . . . . . . . . . . . . . . . . . 254
Before setting off
rl'"'n First read and observe the introductory L..J.:.U Information given on page 252.
Checklist
The following points should be verified in addition to the checklist 33:
..( Close the pop-up roof .
..( Close all drawers, cabinet doors and flaps.
Before you take a road trip
rl'"'n First read and observe the Introductory L..J.:.U Information given on page 252.
Checklist
Observe the following additional suggestions:
../
../
Familiarise yourself with parking and ma-noeuvring the vehicle.
Note the height and width of the vehicle-particularly if any accessories have modified these dimensions.
2521 Before tho journoy
A WARNING (Continued)
colourless poisonous gas. Carbon monoxide can cause people to lose consciousness. it can also cause death.
m All saved switch-on times will be deleted if W you switch off the central control panel or dis-connect the additional battery. They will also be de-leted ifthere is a defective fuse in the control pan-el.
Rectifying faults on the camping equipment . . 254
Technical data. living area . . 255
Additional information:
• Central control panel 204.
• Before setting off =:>page 33.
• Vehicle care and maintenance 380.
..( Retract the awning completely.
..( Remove all vehicle interior shades and open all blinds.
..( Bring all tables into their stowed position .
../ Close all gas shut-off valves.
/ Secure all loose items in the vehicle. _., ______________________________
../
../
../
Check that all items of equipment are in good working order .
Observe the entry and vaccination require-ments of any foreign country you will be vis-iting.
Have the following documents on hand:
-Valid identity cards or passports
-Driving licence and vehicle registration papers ..,.

Checklist (Continued)
-Insurance documents
-Camping and travel guides
./ Inform yourself about the peculiarities of any foreign country you plan to visit, such as driving speed limits and required papers .
./ Check the cooking gas supply and change the bottle if necessary.
Actions to take during thunderstorms
ro First read and observe the introductory information given on page 252.
Checklist
Take the following actions before an impending storm:
./ Close the pop-up roof .
./ Retract the awning completely.
Winter conditions
r-f"'n First read and observe the introductory information given on page 252.
When parked at a camping site
• Engage a gear and place chocks against the wheels to prevent the vehicle rolling away.
• Release the handbrake so that it does not freeze.
• Do not lay power cables on the ground as they could freeze to the ground.
• Keep the ground under the vehicle free of ob-structions so that the exhaust from the supplemen-tary heating system can escape.
Ventilation
High humidity levels in the vehicle can be reduced by using a commercially available fan.
Cleaning cupboards, cooker and sink
r-f"'n First read and observe the Introductory L-la.U Information given on page 252.
Cleaning the cupboards
Clean the surfaces of the kitchen unit and cup-boards with commercially available non-abrasive cleaning agents => ./ Fill up with fresh water.
./ Drain the waste water tank.
./ Check the vehicle toolkit.
./ Take a mains cable and cable reel on board so you can use the 230-volt electrical feed.
./ Disconnect the 230-volt electrical feed.
./ Wait out the storm while remaining inside the vehicle.
Additional information:
• Read and observe the information under the in-dex keyword "Winter conditions".
CD
In very cold weather the fresh and waste water systems should be emptied to prevent them from becoming damaged If the vehicle Is not to be kept heated continuously or Is only to be
used for short periods. Stubborn stains can be removed with a cloth mois-tened with spirits, alcohol or special plastic cleaner => Equipment, California 253

Fault Possible cause Solution
2. The feed plug is not connected prop-2. Check the connection between the vehi-erly. cle and the mains.
3. Mains power failure. 3. Inform the electricity company if necessa-ry.
4. The residual current circuit breaker 4. Switch the residual current circuit breaker has tripped. back on.
Problem with the 1. The waste water tank is full. 1. Drain the waste water tank in a suitable waste water sys-location. tem
2. The water level sensor for the waste 2. Have the water level sensor checked by a water tank is malfunctioning. qualified workshop.
Problem with the 1. The fresh water tank is empty. 1. Fill the fresh water tank. fresh water sys-tem
2. The water level sensor for the fresh 2. Have the water level sensor checked by a water tank is malfunctioning. qualified workshop.
Refrigerator box 1. There is a defective fuse 1. Replace fuse 249. does not cool. 429 and 249.
2. Battery voltage too low. 2. Charge the battery using the battery charger or by running the engine.
3. The central control panel is not 3. Switch on the central control panel. switched on.
The electric pop-1. The central control panel is not 1. Switch on the central control panel. up roof does not switched on. open or close or does not open or close fully.
2. The ignition is not switched on. 2 Switching on the ignition
3. The overheating protection on the 3. Wait a few minutes before you attempt to hydraulic pump is activated. open or close the pop-up roof.
4. Battery voltage too low. 4. Charge the battery using the battery charger or by running the engine.
5. There is a defective fuse 5. Replace fuse 249. 429 and 249.
6. There is a temporary malfunction. 6. Press the button for 5 seconds.
7. The electrical system for the pop-up 7. Close the electric pop-up roof manually roof is malfunctioning. 221 and have the electrical system checked by a qualified workshop.
8. The child proof lock has been activa-8. Wait at least 7 minutes before you again led due to the electric pop-up roof hav-attempt to open or close the electric pop-up ing been opened and closed repeatedly roof. within a short period of time.
Technical data, living area
cu First read and observe the Introductory information given on page 252.
Supplementary heating system
I
Maximum heating output: 2.5 kW
Fuel consumption: 0.3 lfh
Equipment, California I 255
<3

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.

Acceleration can be stopped at any time by de-pressing the brake pedal or pressing the(@ or @ button on the multifunction steering wheel 302.
When driving through bends
While driving through bends, the radar sensor may sometimes lose the vehicle travelling ahead or may react to a vehicle in the next lane 242 !Al. In such situations, the vehicle might decelerate unnecessarily or not react to the vehicle in front. In this case the driver must override the adaptive cruise control (ACC) by depressing the accelerator, or interrupt the braking procedure by depressing the brake pedal or pressing or @ button on the multifunction steering wheel 302.
Driving in tunnels
The radar sensor function may be restricted in tun-nels. Switch off the adaptive cruise control (ACC) in tunnels.
Narrow vehicles and a zig-zag traffic situation
Narrow vehicles and vehicles travelling slightly to the left or right of your vehicle will only be recog-nised by the radar sensor once they have entered the radar range 242@ This applies in par-ticular to narrow vehicles such as motorbikes. If re-quired, brake the vehicle yourself.
Vehicles with special load or special equipment
Any load or accessories on other vehicles that pro-trude from the side, rear or over the roof of the ve-hicle may not be detected by the adaptive cruise control (ACC) .
Switch off the adaptive cruise control (ACC) when the vehicle ahead has special load or special equipment, or while overtaking vehicles of this kind. If required. brake the vehicle yourself.
When other vehicles change lanes
Vehicles that are very close when they move into your lane can only be detected by the radar sen-sors when they have moved into the sensor range. This means that the adaptive cruise control (ACC) may have a delayed reaction =>Fig. 243@]. If re-quired, brake the vehicle yourself.
Stationary vehicles
The adaptive cruise control (ACC) does not detect stationary objects during a journey, e.g. stationary traffic or a vehicle that has broken down.
306 I While driving
If a stationary vehicle is hidden behind a vehicle that has been detected by the adaptive cruise con-trol (ACC) and this vehicle turns off the road or changes lane, the adaptive cruise control (ACC) will not be able to react to the stationary vehicle 243 [Q]. If required, brake the vehicle your-self.
Oncoming vehicles and vehicles crossing your path
The adaptive cruise control (ACC) does not react to approaching vehicles or vehicles crossing your path.
Metal objects
Metal objects, such as tracks in the road or metal plates used in roadworks, can confuse the radar sensor and cause incorrect reactions from the adaptive cruise control (ACC) .
Possible radar sensor function impairments
The adaptive cruise control (ACC) will switch off temporarily if the radar sensor function is impaired, e.g. due to heavy rain, spray, snow, ice or mud. A corresponding message will appear on the instru-ment cluster display. Clean the radar sensors as required.
The adaptive cruise control (ACC) will automatical-ly be available again as soon as the radar sensors are no longer impaired. The message on the in-strument cluster display goes out, and the adaptive cruise control (ACC) can be reactivated.
Strong reflected radiation of the radar signal, e.g. in multi-storey car parks, can impair the function of the radar sensor.
Towing a trailer
The adaptive cruise control (ACC) operates with reduced dynamics when the vehicle is towing a trailer.
Overheated brakes
If the brakes overheat, e.g. following heavy braking or when driving down steep inclines for long peri-ods, the adaptive cruise control (ACC) may be de-activated temporarily. A corresponding message will appear on the instrument cluster display. lt is then not possible to activate the adaptive cruise control (ACC).
As soon as the temperature of the brakes has de-creased sufficiently, the adaptive cruise control (ACC) can be activated again. The message on the instrument cluster display goes out. If the mes-sage ACC not ava i 1 able does not go out for a long time, there is a fault. Go to a qualified work-shop. Volkswagen recommends using a Volkswa-gen dealership for this purpose.

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.
• Switch off the air conditioning system if you suspect that it has been damaged. This can help to prevent secondary damage. The air conditioning system should be checked by a qualified workshop.
• 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.
• Do not insert any objects in the slots of the air outlets. This could cause damage to the air outlets.

Button, Additional information. Climatic '*Fig. 254 and '*Fig. 255. control
CD Temperature .
••••• Turn the regulator to set the temperature as required.
@ Blower. Setting 0: blower and Climatic are switched off. Setting 4: maximum blower setting.
Air distribution. @ Front infinitely adjustable. Passenger compartment: Can be adjusted manually with the buttons.
® Air distribution to the windscreen. In this position, the air re circulation mode is switched off
automatically, or not switched on at ail .
.. 0 ;;;o Air distribution to the upper body via the air vents In the dash panel.
Air distribution to the footwell.
@o •;;JJ Air distribution to the windscreen and the footweii.
gp Passenger compartment: air distribution to the side windows.
AC Press the button to switch the cooling system on or off.
QW Rear window heating: only functions when the engine is running and switches off automati-
cally after approximately 10 minutes.
Only for vehicles with controls in the roof of the passenger compartment: enabling or REAR disabling controls in the passenger compartment. An indicator lamp in the button lights up
when a control is enabled.
Air recirculation mode =-page 330.
Switch off. I Turn the blower switch to setting 0.
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.
324 I While drivmg
A WARNING (ConUnued)
• Never switch off the blowers or switch on the air recirculation mode for an extended pe-riod as this prevents fresh air from entering the vehicle interior.

Settings for optimal road visibility
• Switch off air recirculation mode 330.
• Set blower® to level 1 or 2.
• Set the temperature selector G) to the required position.
• Open and position all vents on the dash panel.
• Turn the air distribution Fig. 258 0 to the desired position.
Rear window heating
A button for the rear window heating @ may be contained in the dash panel.
• When the engine is running, press the @ but-ton to switch on the rear window heating.
• The rear window heating is switched off auto-matically after approx. 10 minutes. To switch it off before the automatic switch-off, press the(!) but-ton again.
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. Information on the air conditioning system
.........r'n First read and observe the Introductory L-.lr:.ll Information and safety warnings & on page 322.
The cooling system for the vehicle interior only works when the engine is running and the blower is switched on.
The air conditioning system operates most effec-tively with the windows and the sliding/tilting roof closed. However, if the vehicle has heated up after standing in the sun for some time, the air inside can be cooled more quickly by opening the win-dows and the sliding/tilting roof for a short time.
Settings for optimal road visibility
Switching the cooling system on not only reduces the temperature of the vehicle interior, but also the humidity. This improves comfort for the vehicle oc-cupants and prevents the windows from misting when the outside humidity is high.
Climatic
• Switch off air recirculation mode 330.
• Set the blowers to the required level.
• Set the temperature to +22•c (+72.F).
• Open and position all vents on the dash panel 329.
• Turn the air distribution controller to the desired position.
• Press the@) button to switch the cooling sys-tem on. The indicator lamp in the button lights up.
328 I While driving
Cllmatronlc
• Press button.
• Set the temperature to +22•c (+72.F).
• Open and position all vents on the dash panel 329.
The cooling system cannot be switched on
The following criteria may prevent the cooling sys-tem from being switched on:
• The engine is not running.
• The blower is switched off.
• The air conditioning system fuse has blown.
• The ambient temperature is lower than approxi-mately +3"C (+38°F).
• The compressor has been temporarily switched off because the coolant temperature is too high.
• There is a different fault in the vehicle. The air conditioning system should be checked by a quali-fied workshop.
Things to note
If the humidity and temperature outside the vehicle are high, condensation can drip off the evaporator in the cooling system and form a pool underneath the vehicle. This is normal and does not indicate a