battery VOLKSWAGEN PASSAT CC 2015 1.G Owner's Manual

WARNING
Operating fluids and some materials in the engine compartment
can catch fire easily, causing burns and other serious personal
injuries!
Never smoke near the engine compartment.
Never work next to open flames or sparks.
Never pour or spill operating fluids or other flammable liq-
uids on the engine. These fluids can ignite on hot engine parts
and cause injuries.
If work on the fuel system or the electrical system is neces-
sary:
– Always disconnect the 12 Volt vehicle battery. Make sure
the vehicle is unlocked when you disconnect the battery, or
the alarm will go off. Never touch the electrical wiring of the
ignition system.
– Never work near heaters, water heaters, or other open
flames.
Always have a functional, approved fire extinguisher nearby.
NOTICE
When changing or topping off fluids, make sure that you pour
the fluids into the correct reservoirs. Adding the wrong type of
operating fluids will cause serious malfunctions and engine
damage.
Fluid leaks and spills are harmful to the environment. Regularly
check the ground underneath your vehicle for this reason. If you find
spots of oil or other fluids, have your vehicle checked by your author-
ized Volkswagen dealer or authorized Volkswagen Service Facility.
Dispose of leaked operating fluids properly.
Display

Vehicle battery

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 elec-
trical system.
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.
When you change a light bulb, always switch off the light
first.
Always keep children away from battery acid and vehicle bat-
teries in general.
Always wear eye protection. Never let battery acid or lead
particles come into contact with your eyes, skin, or clothing.
Sulfuric battery acid is very corrosive. It can burn unprotect-
ed 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.
If you get battery acid in your eyes or on your skin, immedi-
ately rinse with cold water for several minutes and then get
immediate medical attention. If you swallow any battery acid,
get medical attention immediately.
When disconnecting the batteries from the vehicle electrical
system, always disconnect the negative cable (-) first and then
the positive cable (+).
Always switch off all electrical consumers before reconnect-
ing 12 Volt batteries. Reconnect the plus cable (+) first and then
the negative cable (-). Never reverse the polarity of the connec-
tions. This could cause a fire.
A highly explosive mixture of gases is given off when the bat-
tery is being charged.
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.

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).
If the battery has a vent line or tube, make sure that it is
properly connected to the battery.
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
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
Do not expose the vehicle battery to direct sunlight for an ex-
tended period of time as ultraviolet rays may damage the battery
housing.
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 Perchlo-
rate Material. Special handling may apply – see
http://www.dtsc.ca.gov/hazardouswaste/perchlorate. Obey all appli-
cable legal requirements regarding handling and disposal of the vehi-
cle or parts of its restraint system, including airbag modules and safe-
ty belts with pretensioners. Authorized Volkswagen dealers and au-
thorized Volkswagen Service Facilities are familiar with the require-
ments, and we recommend that you have them perform this service
for you.
Emergency starting and starting the engine with a very weak ve-
hicle battery or after the vehicle battery has been replaced may

change or delete system settings (including time, date, personal con-
venience 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 electrolyte level

Fig. 170 In the engine compartment: On vehicles with a 2.0 liter en-
gine, the vehicle battery is in the engine compartment.

Fig. 171 In the luggage compartment: On vehicles with a 3.6 liter en-
gine, the vehicle battery is on the left side of the luggage compart-
ment.

Vehicles with 3.6 liter engines: Open the luggage compartment lid
⇒  Luggage compartment lid.
Opening the battery cover
Depending on the engine type, there are different kinds of battery
covers:
Vehicles with 2.0 liter engines: Press on the clip in direction of the
arrow ⇒ fig. 170 (1) and remove the cover upward.
Vehicles with 3.6 liter engines: Remove the trim panel to access
the vehicle battery ⇒ fig. 171.
Checking the vehicle battery acid level
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.
The round battery window (“acid level indicator”) on the top of the
battery changes color, depending on the battery's electrolyte level.

Color 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 Fa-
cility.
Black Battery electrolyte level is satisfacto-
ry.

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

Only use maintenance-free vehicle batteries meeting standards
TL 825 06 and VW 7 50 73. These standards must date from Au-
gust 2008 or later.
Disconnecting the vehicle battery
If the battery must be disconnected from the vehicle's electrical sys-
tem, note the following:
Switch off all electrical systems and devices and the ignition.
Unlock the vehicle before disconnecting the battery; otherwise the
alarm system will go off.
First disconnect the negative cable (-) and then the positive cable
(+) ⇒ .
Connecting the vehicle battery
Prior to reconnecting the battery, switch off all electrical systems
and devices and the ignition.
Connect the positive cable (+) first and then the negative cable (-)
⇒ .
After the battery is connected and the ignition is switched on, different
indicator lights may come on. They should go out after you drive a
short distance at 10–12 mph (15–20 km/h). If the indicator lights do
not go out, contact an authorized Volkswagen dealer or an authorized
Volkswagen Service Facility and have the vehicle checked.
If the battery was disconnected for a long time, the next scheduled
service may not be correctly calculated and displayed ⇒ page 12,
Instrument cluster. The maximum permissible service and mainte-
nance intervals are shown in the ⇒ Booklet Warranty and Mainte-
nance.
Vehicles with Keyless Access
If the ignition will not start after reconnecting the vehicle battery, lock
the vehicle from the outside and unlock it again ⇒  Unlocking or lock-
ing the vehicle with Keyless Access, ⇒  Unlocking or locking the vehi-
cle with Keyless Access. Then try to start the ignition again. If the
ignition cannot be switched on, contact an authorized Volkswagen
dealer, an authorized Volkswagen Service Facility, or another quali-
fied workshop for assistance.

Automatic electrical load deactivation
If the vehicle battery drain is high, the intelligent onboard electrical
system management automatically takes steps to help prevent bat-
tery drain.
The idle speed is increased so that the alternator provides more
power.
The power to devices that consume a lot of electricity is cut back or
switched off completely.
When the engine is started, the power supply to the 12 Volt sockets
is temporarily interrupted.
The onboard electrical system management cannot always keep the
battery from being drained. For example, the battery will drain if the
engine is not running, but the ignition is switched on or the parking
lights are left on for a long time when parked.
Battery disconnection in an accident with airbag deployment
In vehicles with a battery in the luggage compartment, the electrical
connection to the battery is disconnected automatically in a collision
with airbag deployment. This helps to prevent a short-circuit.
What drains the vehicle battery?
Long periods when the engine is not running, especially when the
ignition is on.
Using electrical systems or devices when the engine is switched
off.
Leaving the vehicle unlocked for several days when not in use.
The selector lever is left for a long period of time in any position
other than P when the ignition is switched off ⇒  Automatic transmis-
sion: Selector lever.
WARNING
Failure to use the proper battery with proper mounting and
connections may cause short circuits, fires, and serious per-
sonal injuries.
Always use only maintenance-free or cycle-free, leak-proof
batteries with the same specifications and dimensions as the
original equipment battery. Specifications are listed on the bat-
tery housing.