Get Various situations -> Start-up aid Guide for Volkswagen Touareg SUV Third Generation (2018-2025)

If you suspect that the 12-volt battery is

damaged or defective, take it to a specialist

workshop immediately after receiving the jump-

starting aid and have it checked.

Colour

Green

Amperage

Light green

For the starting aid, suitable starting cables are

required, e.g. in accordance with DIN 72553

Previous steps

– Switch off the ignition, lights and all electrical

consumers.

(see cable manufacturer's instructions). The

mm2

cable cross-section must be at least 25

– Open the corresponding fuse box

If the 12-volt on-board power supply is not

→

p. 303.

functioning due to a fault in the 12-volt battery,

the hybrid vehicle can be started by means of

the starting aid if the high-voltage battery has

sufficient charge → pag e 305.

How to recognise a blown fuse

– Illuminate the fuse with a torch. This will

make it easier to recognise if the fuse is

blown.

→

p. 313.

– A blown fuse can be recognised by the

melted metal strip → fig. 233.

Changing a fuse

– If necessary, remove plastic clips

→ fig. 234

fuse box.

1 located on the housing cover

WARNING

If the jumper cables are used improperly and

the starting aid improperly, the 12-volt battery

could explode and cause serious injury. To

reduce the risk of battery explosion, be aware

of the following:

– Depending on the type of the fuse, move the pins

corresponding zones → fig. 234

→ fig. 234 laterally over the fuse.

– Remove the fuse.

– If the fuse has blown, replace it with a new

fuse of the same amperage (same colour

● Any work on the 12-volt battery and the

electrical system can cause severe burns,

fire and electrical shock. Before working on

the battery, always read and observe the

relevant warnings and safety precautions →

p. 330.

engraving) and the same size →

and

– After inserting the new fuse, if necessary, fit

the plastic clips back into the cover.

– Mount the fuse box cover.

● The battery supplying the current must

have the same voltage (12 volts) and the

same capacity (printed on the battery) as

the discharged battery.

NOTICE

If a fuse is replaced by a fuse with a higher

rating, damage may occur elsewhere in the

electrical system

● Never charge a 12-volt battery that is

frozen or has been disconnected. When the

battery is discharged, it may freeze at

temperatures approaching 0 °C (+32 °F).

● Replace the 12-volt battery if it has

frozen, even if it has thawed.

Start-up aid

● During the starting aid, a highly explosive

mixture of detonating gases is produced in

the 12-volt battery. Always avoid sparks,

fire, naked flames or open flames in the

vicinity of the battery.

Introduction to the topic

If the propulsion system cannot be switched on

because the 12-volt battery is discharged, the

12-volt battery can be used for this purpose.

of another vehicle.

306

Instruction manual

glowing cigarettes. Never use a mobile phone

when connecting and disconnecting the

jumper cables.

Sockets for starting aid (positive

pole and ground terminal)

● Charge the 12-volt battery only in well-

ventilated areas, as a highly explosive

mixture of detonating gases is created in

the battery during the starting aid.

Note and at the beginning of this

on page 305.

chapter

● Lay the jumper cables in such a way that

they never come into contact with rotating

parts of the engine compartment.

● Never confuse the positive pole with the

negative pole and never connect the starter

cables incorrectly.

● Observe the manufacturer's operating

instructions for the jumper cables.

NOTICE

To avoid considerable damage to the system

If the vehicle's electrical system is not in use,

please note the following:

Fig. 235In the engine compartment: positive

connection

ground terminal

● If the jumper cables are connected

incorrectly, a short circuit may occur.

The sockets for the starting aid are located in the

engine compartment → fig. 235 under the engine

cover and are accessible through the

● Do not allow the vehicles to come into contact

with each other, otherwise current may start to

flow as soon as the positive poles are

connected.

corresponding openings. The starting aid can only

these sockets

be given and received via

Using the start-up aid

Note

and at the beginning of this chapter on page 3 05.

Fig. 236 The connection of the emergency cables is carried out according to the variant , or depending on

the vehicle equipment

Various situations

307

3. Connect one end of the black jumper wire

Legend to fig. 236 :

to a suitable ground terminal , to the

Vehicle with discharged 12-volt battery,

which receives the starting aid.

engine block or to a solid piece of metal

bolted securely to the engine block of the

vehicle with the 12-volt battery supplying

Vehicle with the 12-volt battery supplying

the current, which provides the starting

aid.

the current

4. Connect the other end of the black jumper

cable to the jumper socket (ground) (-) of

the vehicle with the discharged 12-volt

Appropriate ground terminal. Solid metal

part bolted securely to the engine block or

the engine block itself.

battery

Variant : Connecting the jumper cables

The discharged 12-volt battery shall be properly

connected to the on-board power supply.

In the variant the 12-volt battery of a vehicle with

the 12-volt battery in the vehicle compartment.

Before starting with the starting aid,

If necessary, check the sight glass on the battery

of the

tor

is unloaded and receives start-up assistance

12 volts → p. 330.

that of a vehicle with sockets for starting aid

→

Do not allow the vehicles to touch each other.

Otherwise, current may start to flow as soon as

the positive poles are connected.

1. Connect one end of the red jumper cable

to the positive (+) pole of the vehicle with

the discharged 12-volt battery

Make sure that the clamps connected to the po-

les have sufficient metal contact.

2. Connect the other end of the red starter

cable to the socket for the starting aid

If the engine does not start after 10 seconds,

stop starting and try again after approx. 1

minute.

(positive pole) (+) of the vehicle with the 12-

volt battery supplying current

3. Connect one end of the black jumper

cable to the socket for the starting aid

(ground) (-) of the vehicle with the 12-

Perform the following operations only in the

order given.

volt battery supplying current

Previous operations

4. Connect the other end of the black jumper

Switch off the ignition in both vehicles

wire to a suitable earth terminal , to the

→

p. 168.

engine block or to a metal part of the

engine.

Open the engine bonnet of both vehicles.

Remove the positive terminal cover of your

vehicle and, if necessary, the battery cover

of your vehicle.

The 12-volt battery is screwed firmly to the

engine block of the vehicle with the 12-volt

battery un-charged

12 volts from the other vehicle.

Variant : connect the jumper cables only to

sockets for the starting aid

Variant : Connecting the jumper cables

In the variant the 12-volt battery of a vehicle

In the variant the 12-volt battery of a vehicle with

with sockets for the starting aid

sockets for the starting aid

is discharged and receives jump-starting

is unloaded and receives starting aid from a

vehicle with starting aid sockets

assistance from a vehicle with a 12-volt battery

in the vehicle.

→ .

non-

motor

1. Connect one end of the red jumper cable to

the starting aid (positive) socket (+) of the

1. Connect one end of the red jumper cable

to the starting aid (positive) socket (+) of

the vehicle with the discharged 12-volt

vehicle with the discharged 12-volt battery

battery

2. Connect the other end of the red starter

cable to the socket for the starting aid

(positive pole) (+) of the vehicle with the

battery.

2. Connect the other end of the red jumper

cable to the positive (+) pole of the vehicle

with the 12-volt battery supplying current

12 volts supplying current

308

Instruction manual

Variant : Connect the jumper cables only to

sockets for the starting aid (continued)

WARNING

If the starting aid is used improperly, the 12-

volt battery may explode and cause serious

injury. To reduce the risk of battery explosion,

observe the following:

3. Connect one end of the black jumper

cable to the socket for the starting aid

(ground) (-) of the vehicle with the 12-

● Any work on the 12-volt battery and the

electrical system can cause severe burns,

fire and electrical shock. Before working on

the battery, always read and observe the

relevant warnings and safety precautions →

p. 330.

volt battery supplying current

4. Connect the other end of the black jumper

cable to the jumper socket (ground) (-) of

the vehicle with the discharged 12-volt

battery

Starting the engine

● Always wear suitable eye protection and

protective gloves and never lean over the

12-volt battery.

1. Start the engine of the vehicle supplying

the power and let it idle.

● Connect the connection cables in the

correct order: first the positive cable and

then the negative cable.

2. Start the engine of the vehicle with the

discharged 12-volt battery and wait 2 to 3

minutes until the engine "turns over".

● Never connect the negative cable to fuel

system components or brake lines.

Disconnect the jumper cables

● Do not allow uninsulated parts of the

clamps to touch each other. Also, do not

allow the cable connected to the positive

terminal of the 12-volt battery to come into

contact with electrically conductive parts of

the vehicle.

1. If it is on, switch off the dipped beam

before removing the ignition cables.

2. Connect the heater fan and the heated

window of the vehicle with the 12-volt

battery discharged to reduce voltage peaks

that occur when the cables are removed.

● Check the sight glass of the 12-volt battery;

if necessary, use a torch. If it is light yellow

or colourless, do not use the jump-starting

aid and seek the assistance of qualified

personnel.

3. With the engines still running, disconnect

the starter cables in the order described

above.

4. Switch off the vehicle's heating and heated

window again when the 12-volt battery is

discharged.

● Avoid electrostatic discharge in the area of

the 12-volt battery. In the event of sparks,

the detonating gas escaping from the

battery may ignite.

5. Close the positive pole cap, mount the

covers and close the engine bonnets.

● Never use the starting aid if the 12-volt

battery is damaged or frozen, or if it has

thawed.

Various situations

309

Various situations -> Start-up aid for Your Volkswagen Touareg SUV Third Generation (2018-2025)

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Various situations