2015 VOLKSWAGEN PASSAT Change battery

x Radio or Navigation system ⇒ Booklet Radio or ⇒ Booklet Navigation system
x Mobile phone package ⇒ Booklet Mobile Phone Package
WARNING
Driving on today's roads demands the full attention of the driver at all times. Driver distrac-tion causes accidents, collisions and serious personal injury!
x Never access menus when the vehicle is moving.
Emergency starting and starting the engine with a very weak vehicle battery or after the vehicle battery has been replaced may change or delete settings (including time, date, personal convenience settings and programming). Check the settings and correct as necessary once the vehicle battery has built up a sufficient charge.
Using the instrument cluster menus: Basic version

Fig. 16 Basic version (vehicles without menu control multi-function steering wheel): Control buttons 1 and 2 on the windshield wiper lever.

If the vehicle battery is too weak, the electrical seat adjustment controls may not work.
Starting the engine stops seat adjustment.
When entering and exiting the vehicle, be careful not to come into contact with any switches that could change the seat adjustment.
Adjusting front and rear head restraints

Fig. 63 Adjusting the front head restraints.

Fig. 64 Adjusting the rear head restraints.

WARNING
Improper use of the remote start feature can cause fire, burns and other serious injuries.
x Always park the vehicle in a place that is vented to the outdoors and has a continuous exchange of fresh, outside air.
x Only use the remote start feature when no one is around or inside the vehicle.
x Always make sure that you can see the vehicle when the engine is running.
x Never leave children, disabled persons, anyone who cannot help themselves, or pets in the vehicle. The doors are locked when the engine is running with the remote start feature. Vehicle occupants would be trapped in the vehicle in an emergency and rescue from the outside would be delayed.
x Never start the engine if children or animals are inside the vehicle. When the engine is running, electrical equipment including electrical seat adjustment controls can be operated and cause serious injuries.
x Never start the engine or let it run in a garage, in an enclosed or confined area. Engine exhaust contains carbon monoxide, a poisonous, colorless and odorless gas. Carbon mon-oxide can cause dizziness, nausea, unconsciousness and even death.
x Always make sure that the area where the engine runs in the remote start mode is well ventilated. Carbon monoxide in a garage or other enclosed area can cause dizziness, impair the ability to drive, and even result in unconsciousness.
x Never start the engine when the vehicle is covered with a protective cover. Hot vehicle components and exhaust could ignite the protective cover.
x Never start the engine near combustible or explosive materials. The exhaust could ignite flammable materials.
NOTICE
x Do not use the remote start feature if the engine Malfunction Indicator Light (MIL) ⇒  Indica-
tor lights, ⇒  Indicator lights has come on, smoke or unusual smells come from the vehicle, an unusual or unexpected operating condition occurs and the condition has not been diagnosed and corrected. Please see an authorized Volkswagen dealer or authorized Volkswagen Service Facility.
x Remote start is possible when one or more windows are open. Always remember that unau-thorized access to the vehicle through open windows as well as operation of HomeLink®, in-cluding access to your garage or other property, is possible when the engine is running in remote start mode. Always make sure that all of the windows are securely closed to help pre-vent unauthorized access to the vehicle, its features and contents.
Using the remote start feature can increase fuel consumption and drain the vehicle battery.
Use of the remote start feature may be regulated or prohibited in some areas. In some areas you may be required to be able to see the vehicle when it is running in remote start mode. Please inform yourself about state and local requirements that may apply and be sure to follow them when using the remote start feature.
Various vehicle functions, such as the low beam headlights and the windshield wipers, are disabled when the engine is running during a remote start.

Emergency starting and starting the engine with a very weak vehicle battery or after the vehicle battery has been replaced may change or delete settings (including time, date, personal convenience settings and programming). Check the settings and correct as necessary once the vehicle battery has built up a sufficient charge.
Manual controls

Fig. 172 In the center console: Manual air conditioning controls.

More information:
x ⇒ Booklet Warranty and Maintenance
x Preparations for working in the engine compartment
x Parts, accessories, repairs and modifications
WARNING
Working on the batteries or the electrical system in your vehicle can cause serious acid burns, fires, explosions, or electrical shocks. Always read and heed the following WARNINGS and safety precautions before working on the batteries or the electrical system.
x Before working on the electrical system, always switch off the ignition and all electrical consumers and disconnect the negative (-) cable from the standard 12 Volt battery.
x When you change a light bulb, always switch off the light first.
x Always keep children away from battery acid and vehicle batteries in general.
x Always wear eye protection. Never let battery acid or lead particles come into contact with your eyes, skin, or clothing.
x Sulfuric battery acid is very corrosive. It can burn unprotected skin and cause blindness. Always wear protective gloves and eye protection. To reduce your risk of injury, never tilt the batteries, as this could spill acid through the vents and burn you.
x If you get battery acid in your eyes or on your skin, immediately rinse with cold water for several minutes and then get immediate medical attention. If you swallow any battery acid, get medical attention immediately.
x When disconnecting the batteries from the vehicle electrical system, always disconnect the negative cable (-) first and then the positive cable (+).
x Always switch off all electrical consumers before reconnecting 12 Volt batteries. Recon-nect the plus cable (+) first and then the negative cable (-). Never reverse the polarity of the connections. This could cause a fire.
x A highly explosive mixture of gases is given off when the battery is being charged.
x Do not smoke and avoid fires, sparks, and open flames when working. Never create sparks or electrostatic charges when handling cables and electrical equipment. Never short circuit the battery terminals. High-energy sparks can cause serious personal injury.
x Never use or attempt to charge a damaged or frozen battery, or a battery that was frozen but has thawed. Charging a frozen or thawed battery could cause explosions and chemical burns! Replace damaged or frozen vehicle batteries immediately. A dead battery can freeze at temperatures around +32 °F (0 °C).
x If the battery has a vent line or tube, make sure that it is properly connected to the battery.
x Always make sure that the vent line is securely attached to a vehicle battery that is located in the luggage compartment.
WARNING
California Proposition 65 Warning
x Battery posts, terminals, and related accessories contain lead and lead components, chemicals known to the State of California to cause cancer and reproductive harm. Wash your hands after handling.
NOTICE
x Do not expose the vehicle battery to direct sunlight for an extended period of time as ultra-violet rays may damage the battery housing.

x If the vehicle is left standing in the cold for a long time, protect the vehicle battery from freezing. A battery will be permanently damaged by freezing.
Undeployed battery isolator modules are classified as Perchlorate Material. Special handling may apply – see http://www.dtsc.ca.gov/hazardouswaste/perchlorate. Obey all applicable legal re-quirements regarding handling and disposal of the vehicle or parts of its restraint system, including airbag modules and safety belts with pretensioners. Authorized Volkswagen dealers and authorized Volkswagen Service Facilities are familiar with the requirements, and we recommend that you have them perform this service for you.
Emergency starting and starting the engine with a very weak vehicle battery or after the vehicle battery has been replaced may change or delete settings (including time, date, personal convenience settings and programming). Check the settings and correct as necessary once the vehicle battery has built up a sufficient charge.
Warning light

Checking the vehicle battery acid level
x If the lighting conditions are poor, use a flashlight so that you can clearly see the battery acid level indicator and tell what color it is. Never use an open flame or an unprotected light source.
x The round battery window (“acid level indicator”) on the top of the battery changes color, depend-ing on the battery's electrolyte level.

Color indication Action
Light yellow or colorless Battery electrolyte level is too low. The vehicle battery may need to be replaced. Have it checked by an authorized Volkswagen dealer or an authorized Volkswagen Service Facility.
Black Battery electrolyte level is satisfactory.

WARNING
Working on the batteries can cause serious acid burns, explosion, or electrical shock.
x Always wear eye protection and protective gloves.
x Sulfuric battery acid is very corrosive. It can burn unprotected skin and cause blindness. Always wear protective gloves and eye protection.
x Never tilt the vehicle battery. Acid could spill out of the battery vents and burn you.
x Never open a vehicle battery.
x If you get battery acid in your eyes or on your skin, immediately rinse with cold water for several minutes and then get immediate medical attention.
x If you swallow any battery acid, get medical attention immediately.
Charging, replacing, disconnecting and connecting the vehicle battery

Frequently asked questions
If you suspect a malfunction or vehicle damage, read and follow the following advice before contacting an authorized Volkswagen dealer or an authorized Volkswagen Service Facility. You may also find helpful information under “Characteristics” and “Checklist” in the index.

Description Possible causes, among others Possible remedy
Engine does not start.
Vehicle battery dead. – Perform jump-start – Charge vehicle battery
The wrong vehicle key is used. Use a valid vehicle key
Fuel level too low. Refuel
AdBlue fill level too low. Refill AdBlue
Vehicle cannot be locked or unlocked using vehicle key.
– Battery in the remote control vehicle key dead. – Too far away from vehicle (out of range). – Buttons have been pressed too many times.
– Replace the battery in the remote control vehicle key – Move closer to vehicle. – Synchronize vehicle key – Lock or unlock vehicle manually
Unusual noises. Cold engine, braking assist systems, electronic steering column lock. Check the “Noises” entry in the index.
Odd driving behavior.
Assistance systems activated. Check the “Assistance systems” entry in the index.
DSG® Direct Shift Gearbox too hot. Stop vehicle as soon as you can do so safely
Outside mirrors move when vehicle is unlocked. Convenience settings are stored. Correct convenience settings
Front seats cannot be adjusted with power controls.
Vehicle battery dead. Charge vehicle battery
Fuse blown. Check fuse and replace if necessary
Features do not work as described in this manual.
Settings were adjusted in the Volkswagen Information Sys-tem.
Check and reset to factory settings if necessary
Headlights do not light up the road as they should.
– Headlights adjusted too high.– Light bulbs burned out. – Low beams not switched on.
– Have the headlight range adjusted by an authorized Volkswagen dealer or an authorized Volkswagen Service Facili-ty. – Change light bulbs – Switch on low beams