battery VOLKSWAGEN TRANSPORTER 2018 Repair Manual

Colour dis-Action play
Light yellow The electrolyte level of the vehicle
or without is too low. The vehicle battery
colour should be checked and replaced by a qualified workshop if necessary.
Black The electrolyte level of the vehicle battery is correct.
A WARNING
Any work on the vehicle battery can cause serious chemical burns, explosions and elec-trlc shocks.
• Always wear eye protection and protective gloves.
A WARNING (Continued)
• Electrolyte is very aggressive. lt can burn the skin and can cause blindness. When working with the battery, ensure that your hands, arms and face in particular are protec-ted from acid spillages.
• Never tilt the vehicle battery. Electrolyte may spill out of the battery vents and cause chemical burns.
• Never open a vehicle battery.
• if acid is spilt in your eye or on your skin, rinse immediately for several minutes with cold water. Then consult a doctor immediate-ly.
• If acid is swallowed, consult a doctor im-mediately. Charging, replacing, disconnecting and connecting the vehicle battery
r-"f'n First read and observe the introductory L-Jo:.l.l information and safety warnings & on page 362.
Charging the battery
The vehicle battery should always be charged by a qualified workshop, as the technology used in fac-tory-fitted batteries requires voltage-limited charg-ing => &. Volkswagen Commercial Vehicles recom-mends using a Volkswagen Commercial Vehicles dealership for this purpose.
If the battery cannot be charged in a qualified workshop, the charging cables of a suitable battery charger must be connected as described in =>page 443, Jump starting for vehicles with a Start/Stop system.
Replacing a vehicle battery
The battery has been developed to suit the condi-tions of its location and has special safety features. If a vehicle battery has to be replaced, discuss the electromagnetic compatibility, size and necessary servicing, output and safety requirements for the new vehicle battery with a Volkswagen Commercial Vehicles dealer before purchase. The vehicle bat-tery should be replaced by a qualified workshop. Volkswagen Commercial Vehicles recommends us-ing a Volkswagen Commercial Vehicles dealership for this purpose.
Only maintenance-free vehicle batteries compliant with the standards TL 825 06 and VVV 7 50 73 should be used. These standards must be dated July 2012 or later.
Vehicles with a Start/Stop system =>page 282 or auxiliary heater =>page 332 are fitted with a special vehicle battery. These vehicle batteries may only be replaced by a vehicle battery with the same specifications.
Disconnecting the vehicle battery
Please note the following if the vehicle battery has to be disconnected from the electrical system in the vehicle:
• Switch off all electrical consumers and the igni-tion.
• Unlock the vehicle before disconnecting the battery in order to avoid triggering the alarm.
• First disconnect the negative cable and then the positive cable => &.
Connecting the vehicle battery
• Switch off all electrical consumers and the igni-tion before reconnecting the vehicle battery.
• First reconnect the positive cable and then the negative cable=>&.
Various indicator lamps may light up after the vehi-cle battery has been connected and the ignition is switched on. They will go out if you drive a short distance at a speed of 15-20 kmlh (10-12 mph). If the indicator lamps remain lit up, the vehicle should be checked by a qualified workshop.
if the vehicle battery was disconnected for long pe-riods, the system may not able to calculate or cor-rectly display the time when the next service is due =>page 19. Comply with the maximum permissible service intervals =>Booklet Service schedule. ""
In the engine compartment 365

Automatic switch-off for electrical consumers
The intelligent vehicle electrical system automati-cally implements a range of measures to prevent the battery from discharging under high loads:
• The idling speed is increased so that the alter-nator provides more electricity.
• The performance of large electrical consumers may be reduced or they may be switched off com-pletely.
• The supply of electricity to the 12-volt sockets and the cigarette lighter is interrupted temporarily while the engine is being started.
The vehicle electrical system cannot always pre-vent the vehicle battery from discharging. For ex-ample, if the ignition is left on for an extended peri-od of time with the engine off, or if the parking light is left on when the vehicle is parked for an exten-ded period.
What can cause the vehicle battery to discharge?
• Long periods at a standstill in which the engine is not running, especially if the ignition is switched on.
• The use of electrical consumers when the en-gine is switched off.
• When the supplementary heater is in operation =>page 332.
A WARNING
Incorrectly attaching the battery and using In-correct vehicle batteries can cause short cir-cuits, fire and serious Injuries.
366 I Cleaning and maintenance
A WARNING (Continued)
• Always use maintenance-free and leak-proof batteries that have the same properties, specifications and dimensions as the factory-fitted vehicle battery.
A WARNING
A highly explosive mixture of gases Is given off when the vehicle battery is being charged.
• Vehicle batteries should only be charged in well-ventilated spaces.
• Never charge a vehicle battery once it has been frozen. Discharged vehicle batteries can even freeze at temperatures of around o•c (+32.FJ.
• The vehicle battery has to be replaced if it has ever been frozen.
• Incorrectly connected cables can cause a short circuit. First connect the positive cable and then the negative cable.
CD
• Never make or break connections between vehicle batteries if the ignition is switched on or the engine is running. Never use a vehicle battery that does not correspond with the vehi-cle's specifications. The vehicle's electrical system or electronic components could be damaged, which could lead to electrical faults, for example In the start/stop system.
• Never connect equipment that provides electricity, such as solar panels or a battery charger, to the 12-volt socket or to the cigarette lighter to charge the vehicle battery. This can damage the vehicle electrical system.
Dispose of the vehicle baltery as required by legislation. Batteries may contain toxic sub-stances such as sulphuric acid and lead.
Electrolyte can pollute the environment. Clean up any service fluid leakages and dis-pose of them property.

Accessories, modifications, repairs and renewal of parts
o::n Introduction
This chapter contains information on the following subjects:
Running-in 394
Accessories and replacement parts 395 Service fluids and consumables . . . . . . . . . . . 395
Repairs and technical modifications . . . . . . . . 396
Repairs and faults in the airbag system . . . . . 397
Retrofitting two-way radios . . . . . . . . . . . . . . . . 398
Information stored in the control units . . . . . . . 398 Using a mobile telephone in the vehicle without a connection to the external aerial . . 399
Vehicle lifting points 401
Additional information and warnings:
• Seat belts '*page 79
• Airbag system '*page 87
• Towing a trailer 139
• Ashtray and cigarette lighter 161
• Electrical sockets 163
• Braking, stopping and parking '*page 269
• Pull-away assist systems 282
• ParkPilot 287
• Reversing camera (Rear Assist) '*page 291
• Cruise control system (CCS) 295
• Driver Alert System 315
• Tyre monitoring system 318
• Preparation for working in the engine compart-ment page 350
• Engine oil 353
• Engine coolant '*page 358
• Battery 362
Running-in
r--('n First read and observe the introductory L-J.:.lJ information and safety warnings & on page 394.
Please follow the regulations concerning running-in new parts.
394 I Cleaning and maintenance
• Cleaning and caring for the vehicle exterior 380
• Cleaning and caring for the interior 388
• Consumer information 404
• Radio, provision for mobile tele-phone, infotainment system, navigation system
A WARNING
Unsuitable spare parts and accessories, In-correctly carried out work, modifications and repairs can lead to damage to the vehicle and cause accidents and serious Injuries.
• Volkswagen Commercial Vehicles strongly recommends you use only approved Volks-wagen accessories and Volkswagen Genuine Parts®. These parts and accessories have been specially tested by Volkswagen Com-mercial Vehicles for suitability, reliability and safety.
• Repairs and modifications to your vehicle should only be carried out by a qualified workshop. Qualified workshops have the nec-essary tools, diagnostic equipment, repair In-formation and qualified personnel.
• Never fit parts to your vehicle that are In any way different from the factory-fitted parts.
• Never secure or mount objects such as drink holders or telephone holders on or next to the airbag covers or within the deployment zone of the airbag.
• Only use rim/tyre combinations which have been approved by Volkswagen Commer-cial Vehicles for your vehicle type. Running in a new engine
Any new engine has to be run in during the first 1 ,500 kilometres. During its first few hours of run-ning, the internal friction in the engine is greater than later on when all the moving parts have bed-ded down.
The style of driving during the first 1 ,500 kilometres will also affect the engine quality. Even after this time-and especially with a cold engine-drive the .,.

The radio communications connection required for Volkswagen Car-Net services is provided by the user's mobile end device, e.g. mobile telephone, SIM card reader. This network signal allows Volks-wagen Car-Net services to receive data online, pass on vehicle data online and transmit additional information, new functions or extended vehicle functions. Volkswagen Car-Net offers the driver or user support functions based on vehicle data to-gether with data obtained from the Internet and IT systems.
The use of Volkswagen Car-Net and the necessary mobile network connection may be subject to a fee. Due to the potentially high volume of data in use, Volkswagen recommends using a mobile phone tariff which includes a data flatrate. For more information contact your mobile telephone provider.
Depending on the service, Volkswagen Car-Net can be operated via the factory-fitted radio or navi-gation system, via mobile devices or via the online customer portal (www.volkswagen-commercial-vehicles-camet.com).
Availability
Volkswagen Car-Net services can be subject to a limited period or changed, set, deactivated, reacti-vated and expanded without prior notice.
Content, scope and provider of Volkswagen Car-Net services can vary. They may also be specific to the vehicle and country/market. Some Volkswagen Car-Net services also depend on availability of service offered by third parties.
Volkswagen Car-Net services can be subject to re-gion-specific limitations. This means that a service may not be available in all parts of a country. This applies in particular to large countries such as Russia. Availability also depends on the network coverage in each country.
Determining the current vehicle position
Some services require the exact location of the ve-hicle in order to provide functions. Depending on the service installed the current vehicle position will be transmitted to the service provider. The driver can choose this option or this will take place auto-matically. When automatic transmission is selec-ted, the current location can also be transmitted at regular intervals.
Lending or selling the vehicle to others
When the vehicle is being sold or lent, the owner or rentaUieasing firm must inform the purchasing or lending party about Volkswagen Car-Net services installed in the vehicle and their functions.
Interferences
The following situations could lead to the interrup-tion of a data transfer or operation of Volkswagen Car-Net services, or impairment of one of the serv-ices which has been installed:
• High speeds
• Areas with insufficient mobile and GPS recep-tion
• Maintenance, repairs, software updates and technical changes to your service provider's tele-communication networks and databases
• Impairment or interruption to mobile and GPS reception, for instance due to weather, tunnels, ga-rages, car parks, underpasses or intensive use of the mobile network
• In countries where Volkswagen Car-Net serv-ices are not available
• A fault in the vehicle electrical system
• Vehicle battery empty or voltage too low
• If the control unit for the Volkswagen Car-Net service or the compatible radio navigation system is not working properly
Exchanging your system
If the factory-fitted radio-navigation system is dam-aged or must be exchanged in a vehicle with Volkswagen Car-Net services installed, go to a qualified workshop. This may entail re-registering or re-activating the Volkswagen Car-Net services.
Necessary registration
Use of Volkswagen Car-Net services requires reg-istration, authentication and activation of a contract only if Volkswagen Car-Net services for the rele-vant vehicle can also be activated on the customer portal. Further information about this can be found on the Internet at (www.volkswagen-commercial-vehicles-carnet.com) or obtained from a Volkswa-gen dealer.
If Volkswagen Car-Net services can only be activa-ted using the radio navigation system, registration on the customer portal is not required.
Volkswagen recommends seeking advice from a Volkswagen dealership before using and activating Volkswagen Car-Net services. Your Volkswagen dealership can provide information on the country-specific range of services and the compatibility of the radio or navigation systems.
If a Volkswagen Car-Net service is activated for a vehicle, the person who has entered Into the mobile telephone contract Is obliged to provide information to each driver of the vehicle re-garding the transmission and reception of data .-
Vehicle care and maintenance 1403

Recycling and scrapping end-of-life vehicles
rl'l1 First read and observe the Introductory L-J,:,JJ information and safety warnings & on page 404.
Recycling end-of-life vehicles
Volkswagen Commercial Vehicles has already made provision for the time when you choose to have your vehicle recycled in an environmentally-friendly manner. The recycling system operating in many European countries will take back your vehi-cle at the end of its useful life. Once the vehicle has been recycled, a certificate of destruction will be issued to show that the vehicle has been dis-posed of correctly.
End-of-life vehicles are recycled free of charge, provided that national legislation is complied with.
Further information on the recycling of end-of-life vehicles can be found at a Volkswagen Commer-cial Vehicles dealership.
Scrapping
The relevant safety requirements must be ob-served when the vehicle or components of the air-bag and the belt tensioners are scrapped. Quali-fied workshops are familiar with these require-ments. Engine management system and exhaust purification system
o:JJ Introduction
This chapter contains information on the following subjects:
Indicator lamps . . . . . . . . . . . . . . . . 407
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . 408 Diesel particulate filter . . . . . . . . . . 409
Additional information and warnings:
• Changing gear =>page 260
• Filling the tank =>page 340
• Fuel =>page 343
• Engine oil =>page 353
• Battery =>page 362
• Information stored in the control units =>page 394
• Tow-starting and towing =>page 446
Indicator lamps
A WARNING
The components of the exhaust system be-come very hot. This can cause fires.
• Park the vehicle so that no part of the ex-haust system can come into contact with any inflammable material underneath the vehicle, e.g. dry grass.
• Never apply undersea! or anti-corrosion coatings to the exhaust pipes, catalytic con-verter, diesel particulate fitter or the heat shields on the exhaust system. [Q First read and observe the introductory information and safety warnings & on page 407.
lit up Possible cause Solution
Engine management system fault {Electron-The engine should be checked by a qualified
J ic Power Control). workshop as soon as possible.
R Diesel engine is preheating before starting. =>page 257
Decrease speed. Drive carefully to the next Fault in catalytic converter . qualified workshop. The engine should be ..... checked.
Vehicle care and maintenance 407

If and when
Practical tips
Frequently asked questions
If you suspect that a vehicle fault has arisen or your vehicle has been damaged, read and observe the following information before contacting a Volkswagen Commercial Vehicles dealership or
qualified workshop. You may also find useful infor-mation in the index under the headings "Things to note" or "Checklist".
To note Some possible causes Possible solution
Vehicle battery is discharged. -How to jump start =>page 443. -Recharge vehicle battery 362.
Engine does not start. The incorrect vehicle key is be-Use a valid vehicle key 36. ing used.
Fuel level is too low. Fill the tank 340.
Supplementary heating system Switch off the supplementary heating
Smoke is coming from the is running. system 332. wing. Supplementary heater is run-No solution 345. ning.
-Battery in the remote control -Replace the battery 36. Vehicle cannot be locked or key is flat. -Move closer to the vehicle. unlocked with the remote -Located too far away from the -Synchronise the vehicle key =>page 36. vehicle. control key. -Buttons were pressed outside -Lock or unlock the vehicle manually
the range. 413.
Cold engine. brake assist sys-Refer to the index under entries for Unusual noises. tems, supplementary heating "Noises". system.
Assist systems are active. Refer to the index under entries for "As-sist systems". Unusual handling. DSG® dual clutch gearbox is too Stop the vehicle immediately hot. 266.
Front seats cannot be ad-Vehicle battery is discharged. Recharge vehicle battery 362.
justed electrically. Fuse blown. Check fuse and replace as necessary 429.
The vehicle has no vehicle No direct solutions possible as it depends
jack, spare wheel or break-Equipment depends on type of on the equipment level. Contact a Volks-vehicle. wagen Commercial Vehicles dealership if down set. necessary 416.
-Windows or sliding roof are open. The interior monitoring sys--Item attached to the interior Remove any objects that could trigger a tem triggers a false alarm. mirror is moving. false alarm 44. -A mobile telephone is vibrating inside the vehicle.
Functions are not working Settings have been made in the Check and if necessary reset back to fac-as described in the owner's manual. Volkswagen information system. tory settings 24.
410 I If and when

To note Some possible causes Possible solution
-Headlights are adjusted for -Change over the headlights for driving driving on the left or right. on the left or right 106. The road ahead is not lit up -Headlight beams set too high. -Set the headlight range 106. properly. -Bulbs are defective. -Change the bulbs 432. -The dipped beam headlights -Switching on dipped headlights are not switched on. 106.
Low vehicle battery charge. Recharge vehicle battery 362.
Electrical consumers not Low fuel level. Fill the tank 340. working. Fuse blown. Check fuse and replace as necessary 429.
-Short journeys. -Avoid short journeys.
-Uneven acceleration. -Think ahead when driving. -Accelerate evenly.
An electrical consumer is switch-Switch off all consumers that are not nee-ed on. de d.
Fault in engine management Have the fault rectified 407. Fuel consumption is higher system. than indicated. Tyre pressure too low. Adjust the tyre pressure 367.
Driving in hilly regions. No direct solutions possible.
Driving with a trailer or roof carri--Check whether it is needed. er. -Remove when not being used.
Driving with a heavy load. No direct solutions possible.
Driving at high engine speed. Select a high gear.
In an emergency
COl Introduction
This chapter contains information on the following subjects:
Making you and your vehicle safe . . 412
First aid kit. warning triangle, high-visibility waistcoat and fire extinguisher . . . . . . . . . . . . . 413
Additional information and warnings:
• Braking, stopping and parking 269
• Manual opening and closing 413
• Vehicle toolkit 416
• Changing a wheel 420
A WARNING
Any broken-down vehicle Increases the risk of accidents in road traffic-both for you and other road users.
• Stop the vehicle as soon as possible and when safe to do so. Park the vehicle at a safe distance from moving traffic In order to lock all doors securely In an emergency. Switch on the hazard warning lights to warn other road users.
• Never leave children or people requiring assistance alone In the vehicle when the doors are locked. This may mean that they are locked In the vehicle in an emergency. People locked In the vehicle may be subjec-
ted to very high or very low temperatures. Practical tips 1411

Making you and your vehicle safe
8S0.00)7
Fig. 289 In the middle of the dash panel: hazard warning light switch.
f"'""'('n First read and observe the Introductory L-lo:.U Information and safety warnings Lb. on page 411.
Observe any legislation concerning the safety of a broken down vehicle. For example, many countries stipulate that you have to switch on the hazard warning lights and wear a high-visibility waistcoat =>page 413.
Checklist
To ensure your own safety and the safety of your passengers, observe the following actions in the specified order => &:
1. Stop the vehicle at a safe distance away from moving traffic and on a suitable sur-face=>&.
2. Switch on the hazard warning lights using button =>Fig. 289.
3. Apply the handbrake =>page 269.
4. Select the neutral position or move the se-lector lever to P =>page 260.
5. Stop the engine and remove the key from the ignition =>page 257.
6. Ensure that all occupants exit the vehicle and go straight to a safe place away from moving traffic, e.g. behind the safety barrier.
7. Take all vehicle keys with you when you leave the vehicle.
8. Place the warning triangle in position to draw the attention of other road users to your vehicle.
9. Allow the engine to cool down and seek ex-pert assistance.
4121 If and when
When the hazard warning lights are switched on, for example if the vehicle is being towed, a change in direction or lane change can still be indicated by operating the turn signal. The warning lights will be interrupted temporarily.
Switch on the hazard warning lights:
• When traffic ahead suddenly starts moving more slowly or you reach the tail end of a traffic jam, to will warn vehicles behind you.
• When there is an emergency.
• When the vehicle breaks down.
• When the vehicle is being towed.
Always follow local regulations for the use of the hazard warning lights.
If the hazard warning lights are not working, use an alternative method of drawing attention to the bro-ken-down vehicle. This method must comply with traffic legislation.
A WARNING
Ignoring any of the items on this important safety checklist can lead to accidents and se-vere Injuries.
• Always follow the Instructions In the checklist and observe the general safety pro-cedures.
A wARNING
The components of the exhaust system be-come very hot. This can cause fires and seri-ous Injuries.
• Park the vehicle so that no part of the ex-haust system can come Into contact with any Inflammable material underneath the vehicle, e.g. dry grass, fuel.
m The vehicle battery will discharge if the haz-L.:!J ard warning lights are left on over a long peri-od of time -even when the Ignition is switched off.
m If you brake hard at speeds over approxi-L.:!J mately 60 km/h (37 mph), the brake lights will flash to warn the traffic behind. If you then continue to brake, the hazard warning lights will be switched on automatically at speeds under approximately 10 km/h (6 mph). The brake light will light up stead-Ily. Once the vehicle starts to accelerate, the haz-ard warning lights will switch off again.

Closing the sliding/tilting roof manually
r-111 First read and observe the introductory L-J,.:.U information and safety warnings & on page 413.
• Take the screwdriver from the vehicle tool kit.
• Remove cover with the sliding/tilting roof rotary button. Use the flat blade of the screwdriver side-ways between the cover and the roof console and pull it downwards.
• Fit a commercially available hexagon key1) of the right size in the hexagon socket head bolt and push the hexagon key approximately 2 mm up-wards.
• Turn the hexagon key to close the sliding/tilting roof.
• Remove the hexagon key and fit the cover again. The cover should lie flush with the surround-ing parts.
• The sliding/tilting roof should be checked by a qualified workshop. The functioning and roll-back function of the sliding/tilting roof could malfunction if it is closed manually. Unlocking the selector lever lock manually
BSG- Fig. 292 Removing the cover of the gearshift gate.
r-111 First read and observe the introductory L-J,.:.lJ information and safety warnings & on page 413.
If the power fails in the vehicle (for example if the battery is discharged) and the vehicle has to be pushed or towed, the manual release mechanism must be used to put the selector lever in the N po-sition.
The manual release mechanism is located under the cover of the gearshift gate.
Preparation
• Apply the handbrake.
• Switch off the ignition.
< CD
;;;: "' 1) Not included in the vehicle toolkit.
Removing the cover of the gearshift gate
• Using one finger, reach into the selector lever gaiter at the indicated Fig. 292 (arrow) and pull the cover upwards out of the dash panel.
• Pull the cover up and over the selector lever
Unlocking the selector lever lock manually
• Push the yellow release lever to the rear and hold it there.
• Press the lock button G) on the selector lever and put the selector lever into position N.
A WARNING
Never move the selector lever out of the posi-tion P if the handbrake is not finnly applied. Otherwise the vehicle could move unexpect-edly if it is stopped on an incline, which could lead to accidents and serious injuries.
CD
The automatic gearbox will become damaged if the vehicle is allowed to roll for a long period of time or at a high speed (for example while be-ing towed) with the selector lever in position N and the engine switched off. Practical tips 415

Test after driving for 10 minutes
r-'('n First read and observe the Introductory L-J,:.LI Information and safety warnings & on page 425.
Reconnect the tyre filler hose =>Fig. 302 ®and check the tyre pressure on the Tyre Pressure Loss Indicator®.
1.3 bar (19 psi /130 kPa) and lower:
• Do not drive on I The tyre cannot be sealed adequately with the breakdown set.
• Seek expert assistance => &.
1.4 bar (20 psi /140 kPa) and higher:
• Set the tyre pressure back to the correct value =>page 367.
• Resume your journey to the nearest qualified workshop. Do not exceed a maximum speed of 80 km/h (50 mph).
• The damaged tyre should be replaced at the qualified workshop.
Fuses
i:llJ Introduction
This chapter contains information on the following subjects:
Fuse box in the dash panel . . . . . . . . . . . . . . . 430
Fuses in the engine compartment . . . . . . . . . . 431 Changing a blown fuse ................... 431
At the time of print we are unable to provide an up-to-date overview of the locations of the fuses for the electrical consumers. This is because the vehi-cle is under constant development, because fuses are assigned differently depending on the vehicle equipment level and because several consumers may use a single fuse. You can get more informa-tion about the fuse layout from a Volkswagen Com-mercial Vehicles dealership.
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.
A WARNING
Driving with an unsealed tyre is dangerous as it can cause accidents and serious Injuries.
• Do not carry on driving if the tyre pressure Is 1.3 bar (19 psi /130 kPa) or lower.
• Seek expert assistance. Additional information and warnings:
• Drink holder =>page 153
• Preparation for working in the engine compart-ment =>page 350
• Battery =>page 362
A WARNING
High voltages in the electrical system can cause electric shocks, serious burns and death.
• Never touch the electrical wiring of the ig-nition system.
• Avoid causing short circuits in the electri-cal system.
A WARNING
Using unsuitable or repaired fuses and bridg-ing an electrical circuit without fuses can cause a fire and serious injuries.
Practical tips I 429