Volkswagen Golf Variant / Jetta. Manual - part 608

 

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Volkswagen Golf Variant / Jetta. Manual - part 608

 

 

Observe notes in chapter 

⇒ page 63

 .

The battery voltage must be at least 0.6 V.

Totally discharged batteries -A- in vehicles before registration

must be exchanged prior to delivery. Preliminary damage can‐

not be excluded.

WARNING

Do not test or charge batteries -A- whose magic eye is “col‐

ourless/light yellow”. Do not slave/jump start the vehicle!
Danger  of  explosion  when  checking  and  charging  or  slave/

jump starting
These batteries -A- must be replaced.

Carry out following procedures:
– Charge battery -A- 

⇒ page 27

 .

3.1.4

Support mode

General notes
The support mode provides the onboard supply with power when

the battery -A- is removed or disconnected.
For additional information refer to ⇒  Operating instructions for

battery charger -VAS 5095 A- .
The support mode is suitable in the following situations:
♦ Support mode of onboard supplies without installed battery -

A-

♦ Power conservation when renewing the battery
♦ Ancillaries test without battery -A-

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions 

⇒ page 2

 !

WARNING

Do not test or charge batteries -A- whose magic eye is “col‐

ourless/light yellow”. Do not slave/jump start the vehicle!
Danger  of  explosion  when  checking  and  charging  or  slave/

jump starting
These batteries -A- must be replaced.

Special tools and workshop equipment required

3. Charging battery A     

29

Carry out following procedures:
– Switch off ignition and all electrical loads.

Caution

♦ The terminal polarity protection in operating mode “charg‐

ing totally discharged batteries/support mode” is not ac‐

tive. Connect battery charger terminal clamps correctly to

battery terminals.

♦ It can cause sparks through a short-circuit.
♦ Danger of explosion
♦ Ensure charger terminal clamps are seated securely.

– Remove battery -A- ⇒  Electrical system; Rep. Gr.  27 .

Caution

When battery -A- is removed, ensure there is no contact be‐

tween terminal clamp connected to positive clamp and body

earth. Also ensure there is no contact between battery clamps.

– Connect red terminal clamp (+) to positive terminal of vehicle.

Note

In vehicles with start/stop function and battery monitor control unit

-J367- fitted, black terminal clamp (-) must be connected to body

earth. Connecting it to negative terminal of battery -A- will cause

start/stop system to malfunction.

– Connect black terminal clamp (-) to negative terminal of vehi‐

cle.

– Check setting on 

support mode/normal mode

 changeover

switch 

⇒ page 27

 . It must be switched on “support mode”.

– Check polarity of charger unit cables.
– Switch on battery charger -VAS 5095 A- 

⇒ page 27

 .

The battery charger -VAS 5095 A- starts with support mode.
End battery support mode
– Switch off battery charger -VAS 5095 A- 

⇒ page 27

 .

– Remove charger unit terminals from battery terminals.

30

3.1.5

Trickle charging

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions 

⇒ page 2

 !

WARNING

Do not test or charge batteries -A- whose magic eye is “col‐

ourless/light yellow”. Do not slave/jump start the vehicle!
Danger  of  explosion  when  checking  and  charging  or  slave/

jump starting
These batteries -A- must be replaced.

In trickle charge mode, battery charger -VAS 5095 A- ensures that

battery -A- is charged correctly and its charge is maintained.
Carry out following procedures:
– Proceed as for charging battery -A- 

⇒ page 27

 .

When battery -A- is being charged in trickle charge mode and a

load draws current from battery, battery charger -VAS 5095 A-

automatically compensates for charge.
The trickle charging mode can be continued for an unlimited pe‐

riod. Battery -A- is always ready for use.

3.2

Battery charger -VAS 5900-

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions 

⇒ page 2

 !

WARNING

Do not test or charge batteries -A- whose magic eye is “col‐

ourless/light yellow”. Do not slave/jump start the vehicle!
Danger  of  explosion  when  checking  and  charging  or  slave/

jump starting
These batteries -A- must be replaced.

In this case of the battery charger -VAS 5900- , the effective

charge current cannot be read directly on the battery charger -

VAS 5900- .

Note

Observe ⇒  Operating instructions for battery charger -VAS

5900- .

♦ Description of battery charger -VAS 5900- 

⇒ page 32

 .

3. Charging battery A     

31

⇒ page 32

 .

♦ Service charging 

⇒ page 34

♦ Charging totally discharged battery -A- 

⇒ page 37

 .

♦ Support mode 

⇒ page 39

 .

♦ Trickle charging 

⇒ page 42

 .

3.2.1

Description of battery charger -VAS

5900-

The battery charger -VAS 5900- is suitable for charging all 12V

batteries -A- supplied by Volkswagen.
Battery charger -VAS 5900-

Overview of control panel
1 - Display
2 -

 “Up” button

3 -

 “Down” button

4 -

START/STOP

 button

5 -

INFO

 button

3.2.2

Charging battery -A-

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions 

⇒ page 2

 !

WARNING

Do not test or charge batteries -A- whose magic eye is “col‐

ourless/light yellow”. Do not slave/jump start the vehicle!
Danger  of  explosion  when  checking  and  charging  or  slave/

jump starting
These batteries -A- must be replaced.

Special tools and workshop equipment required

32

 

 

 

 

 

 

 

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