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1995-2010 Volkswagen Sharan VAN Charging battery User Manual

MY CAR USER MANUAL

Charging battery for Your Volkswagen Sharan VAN First Generation (1995-2010)

Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
3
Charging battery  
WARNING  
lk  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
Caution  
To prevent damage to the battery and vehicle, the following  
should be observed concerning types of battery ⇒ page 1 .  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
3.1  
Battery charger -VAS 5095 A-  
This chapter describes the basic functions of the battery charger  
-VAS 5095 A- . For additional information refer to ⇒ operating  
instructions for battery charger -VAS 5095 A- .  
Note  
♦ The effective charging current can not be read on these units.  
The charge current must be read externally using a pick-up  
clamp.  
♦ Observe ⇒ operating instructions for battery charger -VAS  
5095 A- .  
3.1.1  
Description of battery charger -VAS  
5095 A-  
The battery charger -VAS 5095- is suitable for charging all 12V  
batteries supplied by Volkswagen.  
3. Charging battery  
25  
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Electrical System, General Information - Edition 07.2010  
The battery charger charges without peaks in amperage or volt‐  
age. This will not adversely effect the onboard electronics. The  
battery can remain in the vehicle while it is being charged and  
need not be disconnected.  
Battery charger -VAS 5095 A-  
1 - ON / OFF switch (0 = charger OFF)  
2 - Charging current indicator (I > 12 A)  
3 - Charging current indicator, battery partially charged > 90 %  
4 - Maintaining charge; lights up green when battery is fully charg‐  
ed  
5 - Malfunction indicator  
6 - Support mode indicator  
7 - Support mode/normal mode changer-over switch  
8 - Charger cable, red terminal „+“, black terminal „-“  
9 - Battery type change-over switch (on base of charger unit)  
3.1.2  
Charging battery with battery charger -  
VAS 5095 A-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
Special tools and workshop equipment required  
♦ Battery charger -VAS 5095 A-  
Caution  
Always set battery type 2.4 V/C (volts/battery cell) when charg‐  
ing! This applies for all batteries.  
Note  
The battery must have a temperature of at least 10 °C.  
26  
Rep. gr.27 - Starter, current supply, CCS  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
lk  
– Switch off ignition and all electrical consumers.  
– Check setting for battery type on type of battery switch  
⇒ page 25 . Must be set to 2.4 V/C (volts/battery cell).  
– Connect red terminal clamp „+“ of charger unit to positive ter‐  
minal on battery.  
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 battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black terminal clamp „-“ of battery charger to negative  
terminal.  
– Switch on battery charger ⇒ page 25 .  
The charging current indicators ⇒ page 26 -2- and -3- light up  
yellow. When only the light emitting diode (LED) -3- lights up yel‐  
low, battery is partially discharged (approx. 90 %).  
If the LED lights up green ⇒ page 26 -4- the charger has switched  
to "maintaining charge". The battery is fully charged.  
– Switch off charging unit ⇒ page 25 .  
– Remove charger unit terminals from battery terminals.  
3.1.3  
Charging totally discharged battery with  
battery charger -VAS 5095 A-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
The charger unit automatically recognises totally discharged bat‐  
teries and initiates a gentle charging procedure with a low charg‐  
ing current. The charging current is automatically adapted to suit  
the charge condition of the battery.  
Note  
♦ Observe notes in chapter ⇒ page 59 .  
♦ Totally discharged batteries in vehicles before registration  
must be exchanged prior to delivery. Preliminary damage can‐  
not be excluded.  
♦ The battery voltage must be at least 0.6 V.  
3. Charging battery  
27  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
lk  
These batteries must be renewed.  
– Charge battery ⇒ page 26 .  
3.1.4  
Charging battery in support mode with  
battery charger -VAS 5095A-  
General notes:  
The support mode provides the onboard supply with power when  
the battery is removed or disconnected.  
For further information, refer to the ⇒ operating manual VAS  
5095A .  
The support mode is suitable in the following situations:  
♦ Support mode of onboard supplies without installed battery  
♦ Power conservation when renewing the battery  
♦ Ancillaries test without battery  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
– Switch off ignition and all electrical consumers.  
28  
Rep. gr.27 - Starter, current supply, CCS  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
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  
lk  
♦ Ensure charger terminal clamps are seated securely.  
♦ Do not press START / STOP button when charger unit  
cables are connected incorrectly. The charger unit may be  
damaged.  
– Remove battery.  
Caution  
When battery is removed, ensure there is no contact between  
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 battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black terminal clamp „+“ to negative terminal of ve‐  
hicle.  
– Check setting for battery type on normal/support mode switch  
⇒ page 25 . It must be switched on support mode.  
– Check polarity of charger unit cables.  
– Switch on battery charger.  
The battery charger starts with support mode.  
End battery support mode:  
– Switch off battery charger.  
– Disconnect black terminal clamp „-“ of charger unit from neg‐  
ative terminal of vehicle.  
– Disconnect red terminal clamp „+“ of charger unit from positive  
terminal of vehicle.  
– Pull charger plug out of battery charger.  
3. Charging battery  
29  
lk  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
3.1.5  
Charging battery in maintenance mode  
with battery charger -VAS 5095 A-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
In maintenance mode the battery charger -VAS 5095 A- ensures  
that the battery is charged correctly and is maintained in fully  
charged condition.  
– Proceed as for charging battery ⇒ page 26 .  
Note  
♦ When a battery is being charged in maintenance mode and a  
electrical consumer draws current from the battery, the battery  
charger -VAS 5095 A- automatically compensates the charge.  
♦ The maintenance mode can be continued for an unlimited pe‐  
riod.  
♦ The battery 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  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
This chapter describes the basic functions of the battery charger  
-VAS 5900- . For additional information refer to ⇒ operating in‐  
structions for battery charger -VAS 5900- .  
30  
Rep. gr.27 - Starter, current supply, CCS  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
Note  
♦ The effective charging current can be read directly on these  
charging units.  
♦ Observe ⇒ operating instructions for battery charger -VAS  
5900- .  
3.2.1  
Description of battery charger -VAlSk  
5900-  
The battery charger -VAS 5900- is suitable for charging all 12V  
batteries supplied by Volkswagen.  
Battery charger -VAS 5900-  
1 - Display  
2 - Adjustment button „Up“ ↑  
3 - Adjustment button „Down“ ↓  
4 - START / STOP  
5 - INFO  
3.2.2  
Charging battery with battery charger -  
VAS 5900-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
Special tools and workshop equipment required  
♦ Battery charger -VAS 5900-  
3. Charging battery  
31  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
Note  
The battery must have a temperature of at least 10 °C.  
– Switch off ignition and all electrical consumers.  
– Connect charger plug to battery charger. The last selected  
type of battery will appear on display.  
– Set battery to respective operating mode with INFO.  
In the display the symbol -1- for „standard charge for wet batter‐  
ies“ or symbol -2- for „standard charge for gel/absorbent glass  
mat batteries“ will appear.  
– Set battery capacity (Ah) of battery for charging using respec‐  
tive button „Up“ ↑ or „Down“ ↓ .  
– Connect red terminal clamp „+“ to positive terminal on battery.  
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 battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black terminal clamp „-“ to negative terminal.  
The charger unit recognises the voltage required for the connec‐  
ted battery (6 V, 12 V or 24 V) and initiates the charging sequence.  
At a charge condition of approx. 80 - 85 % the battery charger  
switches to the „final charge“ mode. The fourth bar appears in  
display -1-. The battery is ready for use.  
lk  
32  
Rep. gr.27 - Starter, current supply, CCS  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
At a charge condition of 100 % all bars appear in display.  
Note  
lk  
♦ In the battery type „standard charge“ the parallel use of con‐  
sumers while charging is possible. The charging period will be  
longer.  
♦ The battery charger will switch to maintenance mode after  
about 1-7 hours, depending on type of battery. To achieve a  
100 % charge the battery should remain connected for this  
period.  
Possible faults and fault rectification  
1 - Displayed battery voltage is not as per nominal voltage:  
– Press respective button „Up“ ↑ or „Down“ ↓ until charging  
sequence starts.  
2 - Displayed battery voltage is not as per nominal voltage –  
charging sequence already started:  
– Press START / STOP twice.  
– Press respective button „Up“ ↑ or „Down“ ↓ until charging  
sequence starts again.  
3 - Battery charger does not detect a battery, when battery volt‐  
age is less than 2 V:  
Display remains unchanged.  
The battery type and ampere hours (Ah) as set is displayed.  
Ending battery charging sequence:  
– Press START / STOP.  
– Disconnect black terminal clamp „-“ of charger from negative  
terminal.  
– Disconnect red terminal clamp „+“ of charger from positive  
terminal on battery.  
– Pull charger plug out of battery charger.  
3.2.3  
Charging battery in service mode with  
battery charger -VAS 5900-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
Caution  
The operating mode „service charge“ is not permitted on VW  
vehicles as the voltage peaks will damage the onboard elec‐  
tronics.  
If there is a requirement to use „service charge“ the battery  
must be disconnected from the onboard supply.  
3. Charging battery  
33  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
Caution  
When charging always set the battery charger to the correct  
type of battery ⇒ operating instructions for battery charger -  
VAS 5900- !  
The „service mode“ is suitable for:  
♦ Wet batteries where the magic eye allows charging (magic  
eye black or green)  
The operating mode „service charge (SERV)“ is only used on  
sulphated batteries. The battery is charged at a voltage of  
> 14.4 V. This can result in a partial reduction of the sulphated  
layer. After charging, always check the colour of the magic eye  
before using the battery ⇒ page 6 .  
lk  
Special tools and workshop equipment required  
♦ Battery charger -VAS 5900-  
Note  
The battery must have a temperature of at least 10 °C.  
– Switch off ignition and all electrical consumers.  
– Connect charger plug to battery charger. The last selected  
operating mode will appear on display ⇒ page 31 .  
34  
Rep. gr.27 - Starter, current supply, CCS  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
– Set battery to respective battery type with INFO.  
In the display, the symbol -1- for „Service charge for wet batteries“  
or symbol -2- for „Service charge for gel/absorbent glass mat bat‐  
teries“ will appear.  
– Set battery capacity (Ah) of battery for charging using respec‐  
tive button „Up“ ↑ or „Down“ ↓ .  
– Connect red terminal clamp „+“ to positive terminal on battery.  
Note  
lk  
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 battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black terminal clamp „-“ to negative terminal.  
The charger unit recognises the voltage required for the connec‐  
ted battery (6 V, 12 V or 24 V) and initiates the charging sequence.  
At a charge condition of approx. 80 - 85 % of the battery voltage,  
the battery charger switches to the „final charge“ mode. The fourth  
bar appears in display -1-. The battery is ready for use.  
Note  
The success of the „service charge“ depends on the severity of  
the sulphation of the battery  
Possible faults and fault rectification:  
1 - Displayed battery voltage is not as per nominal voltage:  
– Press respective button „Up“ ↑ or „Down“ ↓ until charging  
sequence starts.  
2 - Displayed battery voltage is not as per nominal voltage –  
charging sequence already started:  
– Press START / STOP twice.  
– Press respective button „Up“ ↑ or „Down“ ↓ until charging  
sequence starts.  
3 - Battery charger does not detect a battery, when battery volt‐  
age is less than 2 V:  
Display remains unchanged.  
The operating mode and ampere hours (Ah) as set are displayed.  
Ending battery charging sequence:  
– Press START / STOP.  
– Disconnect black terminal clamp „-“ of charger from negative  
terminal.  
– Disconnect red terminal clamp „+“ of charger from positive  
terminal on battery.  
– Pull charger plug out of battery charger.  
3. Charging battery  
35  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
3.2.4  
Charging totally discharged batteries  
with battery charger -VAS 5900-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
lk  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
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.  
♦ When charging always set the battery charger to the cor‐  
rect type of battery ⇒ operating instructions for battery  
charger -VAS 5900- !  
♦ Totally discharged battery is not recognised by battery  
charger ⇒ page 59 .  
♦ Do not press START / STOP button when charger unit  
cables are connected incorrectly. The charger unit may be  
damaged.  
Batteries with a voltage of less than 2 volts will not be recognised  
automatically by battery charger -VAS 5900- .  
Special tools and workshop equipment required  
♦ Battery charger -VAS 5900-  
36  
Rep. gr.27 - Starter, current supply, CCS  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
Note  
♦ Observe notes in chapter ⇒ page 59 .  
♦ Totally discharged batteries in vehicles before registration  
must be exchanged prior to delivery. Preliminary damage can‐  
not be excluded.  
♦ The battery must have a temperature of at least 10 °C.  
– Switch off ignition and all electrical consumers.  
– Connect charger plug to battery charger. The last selected  
operating mode will appear on display ⇒ page 31 .  
lk  
3. Charging battery  
37  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
– Set battery to respective battery type with INFO.  
In the display, the symbol -1- for „Service charge for wet batteries“  
or symbol -2- for „Service charge for gel/absorbent glass mat bat‐  
teries“ will appear.  
– Set battery capacity (Ah) of battery for charging using respec‐  
tive button „Up“ ↑ or „Down“ ↓ .  
– Connect red terminal clamp „+“ to positive terminal on battery.  
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 battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black terminal clamp „-“ to negative terminal.  
– Press START / STOP for approx. 5 seconds. The menu  
„charging totally discharged batteries/support mode“ will be  
activated.  
– Press respective button „Up“ ↑ or „Down“ ↓ to set respective  
battery voltage (6 V, 12 V or 24 V).  
Note  
If a button is not pressed within 5 seconds the charger will return  
to the main menu (select operating mode).  
– Confirm the selected battery voltage with START / STOlkP.  
Then follows the enquiry for "is charger cable terminal polarity  
correct".  
– Check polarity of charger unit cables.  
– Confirm polarity of charger unit cables with START / STOP.  
Charger will start charging sequence for totally discharged bat‐  
tery.  
Ending battery charging sequence:  
– Press START / STOP.  
– Disconnect black terminal clamp „-“ of charger from negative  
terminal.  
– Disconnect red terminal clamp „+“ of charger from positive  
terminal on battery.  
– Pull charger plug out of battery charger.  
3.2.5  
Charging battery in support mode with  
battery charger -VAS 5900-  
General notes:  
The support mode provides the onboard supply with power when  
the battery is removed or disconnected.  
For further information, refer to the ⇒ operating manual VAS  
5900 .  
The support mode is suitable in the following situations:  
38  
Rep. gr.27 - Starter, current supply, CCS  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
♦ Support mode of onboard supplies without installed battery  
♦ Power conservation when renewing the battery  
♦ Ancillaries test without battery  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
lk  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
– Switch off ignition and all electrical consumers.  
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.  
♦ Do not press START / STOP button when charger unit  
cables are connected incorrectly. The charger unit may be  
damaged.  
– Remove battery.  
– Connect charger plug to battery charger. The last selected  
operating mode will appear on display ⇒ page 31 .  
Caution  
When battery is removed, ensure there is no contact between  
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 battery negative terminal will cause start/  
stop system to malfunction.  
3. Charging battery  
39  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
– Connect black terminal clamp „+“ to negative terminal of ve‐  
hicle.  
– Press START / STOP for approx. 5 seconds. The menu  
„charging totally discharged batteries/support mode“ will be  
activated.  
– Press respective button „Up“ ↑ or „Down“ ↓ to set respective  
battery voltage (6 V, 12 V or 24 V).  
Note  
If a button is not pressed within 5 seconds the charger will return  
to the main menu (select operating mode).  
– Confirm the selected battery voltage with START / STOP.  
Then follows the enquiry for "is charger cable terminal polarity  
correct".  
– Check polarity of charger unit cables.  
– Confirm polarity of charger unit cables with START / STOP.  
The battery charger starts with support mode.  
End battery support mode:  
– Press START / STOP.  
– Disconnect black terminal clamp „-“ of charger unit from neg‐  
ative terminal of vehicle.  
– Disconnect red terminal clamp „+“ of charger unit from positive  
terminal of vehicle.  
– Pull charger plug out of battery charger.  
lk  
3.2.6  
Charging battery in maintenance mode  
with battery charger -VAS 5900-  
Note  
♦ When a battery is being charged in the maintenance mode and  
an electrical consumer draws current from the battery, the  
battery charger -VAS 5900- automatically compensates the  
charge.  
♦ The maintenance mode can be continued for an unlimited pe‐  
riod.  
♦ The battery is always ready for use.  
♦ Observe battery manufacture's maintenance instructions!  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
40  
Rep. gr.27 - Starter, current supply, CCS  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
When the battery is fully charged the battery charger -VAS 5900-  
switches to maintenance mode.  
lk  
– Proceed as for charging battery ⇒ page 31 .  
At a charge condition of 100 % all bars appear in display.  
3.3  
Battery charger -VAS 5903-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
This chapter describes the basic functions of the battery charger  
-VAS 5903- . For additional information refer to ⇒ operating in‐  
structions for battery charger -VAS 5903- .  
Note  
Observe ⇒ operating instructions for battery charger -VAS 5903- .  
3. Charging battery  
41  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
3.3.1  
Description of battery charger -VAS  
5903-  
The battery charger -VAS 5903- is suitable for charging all 12V  
batteries supplied by Volkswagen.  
Battery charger -VAS 5903-  
1 - Display  
2 - Adjustment button „Up“ ↑  
3 - Adjustment button „Down“ ↓  
4 - START / STOP  
5 - INFO  
3.3.2  
Charging battery with battery charger -  
VAS 5903-  
WARNING  
lk  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
Special tools and workshop equipment required  
♦ Battery charger -VAS 5903-  
Note  
The battery must have a temperature of at least 10 °C.  
– Switch off ignition and all electrical consumers.  
– Connect charger plug to battery charger. The last selected  
operating mode will appear on display ⇒ page 42 .  
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– Set battery to respective operating mode with INFO.  
In the display the symbol -1- for „standard charge for wet batter‐  
ies“ or symbol -2- for „standard charge for gel/absorbent glass  
mat batteries“ will appear.  
– Set battery capacity (Ah) of battery for charging using respec‐  
tive button „Up“ ↑ or „Down“ ↓ .  
– Connect red terminal clamp „+“ to positive terminal on battery.  
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 battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black terminal clamp „-“ to negative terminal.  
The charger unit recognises the voltage required for the connec‐  
ted battery (6 V, 12 V or 24 V) and initiates the charging sequence.  
At a charge condition of approx. 80 - 85 % the battery charger  
switches to the „final charge“ mode. The fourth bar appears in  
display -1-. The battery is ready for use.  
lk  
3. Charging battery  
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At a charge condition of 100 % all bars appear in display.  
Note  
♦ In the battery type „standard charge“ the parallel use of con‐  
sumers while charging is possible. The charging period will be  
longer.  
♦ The battery charger will switch to maintenance mode after  
about 1-7 hours, depending on type of battery. To achieve a  
100 % charge the battery should remain connected for this  
period.  
Possible faults and fault rectification:  
1 - Displayed battery voltage is not as per nominal voltage:  
– Press respective button „Up“ ↑ or „Down“ ↓ until charging  
sequence starts.  
2 - Displayed battery voltage is not as per nominal voltage -  
charging sequence already started:  
– Press START / STOP twice.  
– Press respective button „Up“ ↑ or „Down“ ↓ until charging  
sequence starts again.  
3 - Battery charger does not detect a battery, when battery volt‐  
age is less than 2 V:  
lk  
Display remains unchanged.  
The battery type and ampere hours (Ah) as set is displayed.  
Ending battery charging sequence:  
– Press START / STOP.  
– Disconnect black terminal clamp „-“ of charger from negative  
terminal.  
– Disconnect red terminal clamp „+“ of charger from positive  
terminal on battery.  
– Pull charger plug out of battery charger.  
3.3.3  
Charging battery in refresh charge  
mode with battery charger -VAS 5903-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
44  
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lk  
Caution  
The operating mode „refresh charge“ is not permitted on VW  
vehicles as the voltage peaks will damage the onboard elec‐  
tronics.  
If there is a requirement to use „refresh charge“ mode the bat‐  
tery must be disconnected from the onboard supply.  
Caution  
When charging always set the battery charger to the correct  
type of battery ⇒ operating instructions for battery charger -  
VAS 5903- !  
The „refresh charge“ mode is suitable for:  
♦ Wet batteries, where distilled water can be replenished.  
Do not use operating mode „refresh charge“ with maintenance-  
free wet batteries.  
The „refresh charge (refr)“ operating mode is only used on sus‐  
pect defective batteries (e.g. sulphation). The battery will be  
charged to maximum specific gravity and the plates will be reac‐  
tivated (dissipation of sulphur layer).  
Special tools and workshop equipment required  
♦ Battery charger -VAS 5900-  
Note  
The battery must have a temperature of at least 10 °C.  
– Switch off ignition and all electrical consumers.  
– Connect charger plug to battery charger. The last selected  
operating mode will appear on display ⇒ page 42 .  
3. Charging battery  
45  
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– Set battery to respective operating mode with INFO.  
In the display the symbol -1- for „refresh charge for wet batteries“  
or symbol -2- for „refresh charge for gel/absorbent glass mat bat‐  
teries“ will appear.  
– Set battery capacity (Ah) of battery for charging using respec‐  
tive button „Up“ ↑ or „Down“ ↓ .  
– Connect red terminal clamp „+“ to positive terminal on battery.  
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 battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black terminal clamp „-“ to negative terminal.  
The charger unit recognises the voltage required for the connec‐  
ted battery (6 V, 12 V or 24 V) and initiates the charging sequence.  
At a charge condition of approx. 80 - 85 % of the battery voltage,  
the battery charger switches to the „final charge“ mode. The fourth  
bar appears in display -1-. The battery is ready for use.  
Note  
The success of the „refresh charge“ depends on the severity of  
the sulphation of the battery.  
Possible faults and fault rectification:  
1 - Displayed battery voltage is not as per nominal voltage:  
– Press respective button „Up“ ↑ or „Down“ ↓ until charging  
sequence starts.  
2 - Displayed battery voltage is not as per nominal voltage –  
charging sequence already started:  
– Press START / STOP twice.  
– Press respective button „Up“ ↑ or „Down“ ↓ until charging  
sequence starts.  
3 - Battery charger does not detect a battery, when battery volt‐  
age is less than 2 V:  
Display remains unchanged.  
The operating mode and ampere hours (Ah) as set are displayed.  
Ending battery charging sequence:  
– Press START / STOP.  
– Disconnect black terminal clamp „-“ of charger from negative  
terminal.  
– Disconnect red terminal clamp „+“ of charger from positive  
terminal on battery.  
– Pull charger plug out of battery charger.  
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3.3.4  
Charging totally discharged battery with  
battery charger -VAS 5903-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slavel/k  
jump starting  
These batteries must be renewed.  
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.  
♦ When charging always set the battery charger to the cor‐  
rect type of battery ⇒ operating instructions for battery  
charger -VAS 5903- !  
♦ Totally discharged battery is not recognised by battery  
charger ⇒ page 59 .  
♦ Do not press START / STOP button when charger unit  
cables are connected incorrectly. The charger unit may be  
damaged.  
Batteries with a voltage of less than 2 volts will not be recognised  
automatically by battery charger -VAS 5903- .  
Special tools and workshop equipment required  
♦ Battery charger -VAS 5903-  
3. Charging battery  
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Note  
♦ Observe notes in chapter ⇒ page 59 .  
♦ Totally discharged batteries in vehicles before registration  
must be exchanged prior to delivery. Preliminary damage can‐  
not be excluded.  
♦ The battery must have a temperature of at least 10 °C.  
– Switch off ignition and all electrical consumers.  
lk  
– Connect charger plug to battery charger. The last selected  
operating mode will appear on display ⇒ page 42 .  
48  
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– Set battery to respective operating mode with INFO.  
In the display, the symbol -1- for „Service charge for wet batteries“  
or symbol -2- for „Service charge for gel/absorbent glass mat bat‐  
teries“ will appear.  
– Set battery capacity (Ah) of battery for charging using respec‐  
tive button „Up“ ↑ or „Down“ ↓ .  
– Connect red terminal clamp „+“ to positive terminal on battery.  
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 battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black terminal clamp „-“ to negative terminal.  
– Press START / STOP for approx. 5 seconds. The menu  
„charging totally discharged batteries/support mode“ will be  
activated.  
lk  
– Press respective button „Up“ ↑ or „Down“ ↓ to set respective  
battery voltage (6 V, 12 V or 24 V).  
Note  
If a button is not pressed within 5 seconds the charger will return  
to the main menu (select operating mode).  
– Confirm the selected battery voltage with START / STOP.  
Then follows the enquiry for "is charger cable terminal polarity  
correct".  
– Check polarity of charger unit cables.  
– Confirm polarity of charger unit cables with START / STOP.  
Charger will start charging sequence for totally discharged bat‐  
tery.  
Ending battery charging sequence:  
– Press START / STOP.  
– Disconnect black terminal clamp „-“ of charger from negative  
terminal.  
– Disconnect red terminal clamp „+“ of charger from positive  
terminal on battery.  
– Pull charger plug out of battery charger.  
3.3.5  
Charging battery in support mode with  
battery charger -VAS 5903-  
General notes:  
The support mode provides the onboard supply with power when  
the battery is removed or disconnected.  
For further information, refer to the ⇒ operating manual VAS  
5903 .  
The support mode is suitable in the following situations:  
3. Charging battery  
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♦ Support mode of onboard supplies without installed battery  
♦ Power conservation when renewing the battery  
♦ Ancillaries test without battery  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
lk  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
– Switch off ignition and all electrical consumers.  
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.  
♦ Do not press START / STOP button when charger unit  
cables are connected incorrectly. The charger unit may be  
damaged.  
– Remove battery.  
– Connect charger plug to battery charger. The last selected  
operating mode will appear on display ⇒ page 31 .  
Caution  
When battery is removed, ensure there is no contact between  
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 battery negative terminal will cause start/  
stop system to malfunction.  
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– Connect black terminal clamp „+“ to negative terminal of ve‐  
hicle.  
– Press START / STOP for approx. 5 seconds. The menu  
„charging totally discharged batteries/support mode“ will be  
activated.  
– Press respective button „Up“ ↑ or „Down“ ↓ to set respective  
battery voltage (6 V, 12 V or 24 V).  
Note  
If a button is not pressed within 5 seconds the charger will return  
to the main menu (select operating mode).  
– Confirm the selected battery voltage with START / STOP.  
Then follows the enquiry for "is charger cable terminal polarity  
correct".  
– Check polarity of charger unit cables.  
– Confirm polarity of charger unit cables with START / STOP.  
The battery charger starts with support mode.  
End battery support mode:  
– Press START / STOP.  
– Disconnect black terminal clamp „-“ of charger unit from neg‐  
ative terminal of vehicle.  
– Disconnect red terminal clamp „+“ of charger unit from positive  
terminal of vehicle.  
– Pull charger plug out of battery charger.  
3.3.6  
Charging battery in maintenance mode  
with battery charger -VAS 5903-  
Note  
♦ When a battery is being charged in the maintenance mode and  
an electrical consumer draws current from the battery, the  
battery charger -VAS 5903- automatically compensates the  
charge.  
♦ The maintenance mode can be continued for an unlimited pe‐  
riod.  
♦ The battery is always ready for use.  
♦ Observe battery manufacture's maintenance instructions!  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
3. Charging battery  
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WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
When the battery is fully charged the battery charger -VAS 5903-  
switches to maintenance mode.  
– Proceed as for charging battery ⇒ page 42 .  
At a charge condition of 100 % all bars appear in display.  
lk  
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3.4  
Battery charger -VAS 5906-  
General description  
3.4.1  
Battery charger - VAS 5906-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
lk  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
Battery charger -VAS 5906- has been specially developed for  
charging in vehicle onboard supply during vehicle presentation.  
It has an automatic charging characteristic for starter batteries, 3  
- 300 AH.  
The maximum charging voltage 14.4 V is not exceeded. All elec‐  
trical loads are supported by up to 30 A by the trickle charging.  
For sustained operation, battery charger -VAS 5906- changes to  
trickle charging once battery is fully charged.  
Tester starts fully automatically and does not require any settings.  
All that is required is to connect crocodile clips and mains cable.  
For further information, refer to the ⇒ operating manual VAS  
5906 .  
3.4.2  
Charging battery with battery charger -  
VAS 5906-  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
3. Charging battery  
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Overview of operating panel:  
1 - Charge condition display 25 %.  
2 - Charge condition display 50 %.  
3 - Charge condition display 75 %.  
4 - Charge condition display 100 %.  
5 - Display ready  
6 - Start/stop and Setup buttons for interrupting and resuming  
charging process. Entry to Setup menu and selection of  
characteristic type (press for 10 s).  
7 - Malfunction display.  
– Place charger in engine compartment or under vehicle.  
– Connect mains cable to charger and plug it into mains.  
Charger is in no-load operation - ready light is on.  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
– Switch off ignition.  
– Connect red charging cable to positive terminal „+“ on battery.  
Note  
In vehicles with start/stop function and battery monitor control unit  
-J367- fitted, black terminal clamp must be connected to bodylk  
earth. Connecting it to battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black charging cable to negative terminal „-“ on bat‐  
tery.  
Charging starts after about 2 seconds.  
Number of LEDs lit indicates charge condition of battery. Battery  
has been charged up once all lights are lit.  
When battery is fully charged, battery charger -VAS 5906- auto‐  
matically switches over to trickle charging.  
Caution  
Danger of sparking if charging terminals are removed too soon.  
Terminate charging by pressing start/stop button.  
– Press start/stop button to terminate charging.  
– Disconnect black charging cable from negative terminal „-“ on  
battery.  
– Disconnect red charging cable from positive terminal „+“ on  
battery.  
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3.5  
Midtronics -INC 940- battery charger on‐  
ly for USA/Canada  
Warning and safety regulations ⇒ page 2  
General description ⇒ page 55  
Charge battery ⇒ page 56 .  
lk  
Dealing with problems with Midtronics -INC 940- battery tester  
⇒ page 58  
3.5.1  
General description of Midtronics -INC  
940- battery tester  
Batteries in VW vehicles are only allowed to be charged with bat‐  
tery chargers approved by VW. In the USA/Canada, it is permitted  
for the Midtronics -INC 940- battery charger to be used.  
Midtronics -INC 940- battery charger combines battery charging  
with a charge condition checks and a battery test.  
The following charging and analysis procedures apply to all bat‐  
teries, all battery installation locations (engine compartment or  
luggage compartment) and battery application purposes (starter  
battery or second/convenience battery).  
Always comply with the safety regulations, the regulations for  
setting up the battery charger, the display menu/display buttons,  
LEDs and the operating procedures described in the ⇒ operating  
manual INC 940 .  
Read through ⇒ operating manual INC 940 carefully.  
Refer to ⇒ Self-study programme No. ; Vehicle batteries for more  
information.  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
No naked flames, sparking or smoking in the vicinity of batter‐  
ies.  
Battery charger must be switched off before cables are con‐  
nected or disconnected.  
Do not remove cell plugs during charging.  
Overcharging sulphated batteries can lead to explosions.  
Do not store precision tools in rooms where batteries are  
charged, because corrosion can ensue due to chemical reac‐  
tions.  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
3. Charging battery  
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3.5.2  
Charging battery  
Prerequisites:  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
INC 940 initial setup performed (dealership number, date/time) ⇒  
operating manual INC 940 .  
– Check general information ⇒ page 55 .  
– Open bonnet or cover for other installation location of battery.  
lk  
– Perform visual check of battery ⇒ page 6 .  
– Determine whether battery type is „Standard“ (wet battery) or  
„AGM“ (absorbent glass mat battery).  
– Close all vehicle doors.  
Note  
♦ Battery temperature must be at least 10 °C.  
♦ For additional information, refer to the ⇒ operating manual  
INC 940 .  
Perform charging procedure:  
– Switch off all electrical consumers.  
– Switch off ignition and remove ignition key.  
– Connect red terminal clamp „+“ of charger unit to positive ter‐  
minal on battery.  
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 battery negative terminal will cause start/  
stop system to malfunction.  
– Connect black terminal clamp „-“ of battery charger to negative  
terminal.  
– Connect Midtronics -INC 940- battery charger to an earthed  
socket.  
– Set „ON/OFF“ switch of Midtronics -INC 940- battery charger  
to „ON“.  
– Select „Automatic“ or „Manual“ charging mode.  
– Select test „In vehicle“ or „Outside vehicle“.  
– Select battery type „Standard “ or „AGM“ (absorbent glass  
mat).  
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– Select test type „Warranty“ or „Miscellaneous“. Note additional  
details (depending on type of test).  
Note  
♦ For additional information, refer to the ⇒ operating manual  
INC 940 .  
♦ If necessary, make a note of menu items required for „War‐  
ranty“ test type ⇒ Warranty service circular .  
Midtronics -INC 940- battery charger tests battery and starts  
charging procedure. Display then shows one of three results, as  
well as approximate charging time.  
Result:  
Measures:  
Battery OK  
Battery can be returned to op‐  
eration.  
Charging required  
♦ Test found low charge level.  
♦ Charging starts and approx‐  
imate charging duration is  
displayed.  
♦ Achieved cold-start per‐  
formance and remaining  
charging time are displayed,  
and are updated regularly.  
Renew battery.  
Note  
Battery defective. Charging  
procedure is interrupted. Re‐  
new battery.  
lk  
In case Midtronics -INC 940- shows fault messages or text dis‐  
plays other than those listed above, please refer to  
⇒ page 58 .  
WARNING  
Stop charging if battery is liberating a lot of gas. Press „Stop“  
button on front.  
When charging and testing procedure has finished, Midtronics -  
INC 940- battery charger displays „Battery good“ or „Renew  
battery“ and total charging time.  
There are three possible messages depending on individual cir‐  
cumstance (printout for warranty, repair job, evaluation and filing):  
♦ Generate test code (only possible after automatic charging  
and test).  
♦ Print last test result (for warranty).  
♦ Display last test results.  
Note  
For additional information, refer to the ⇒ operating manual INC  
940 .  
3. Charging battery  
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3.5.3  
Dealing with problems with Midtronics -  
INC 940- battery tester  
Under certain circumstances, the display may show errors or  
messages according to status.  
The most frequent display messages are listed below, together  
with suggested solutions.  
Note  
For messages not listed here, please refer to ⇒ operating manual  
INC 940 .  
Display message  
Check connection.  
Measures  
– Check whether terminals of  
battery charger are firmly  
connected to battery termi‐  
nals.  
– Check battery terminals are  
tightened according to reg‐  
ulations and do not have  
corrosion.  
Terminals connected?  
System noise  
Safety function of tester.  
lk  
– Connect terminals to battery  
before starting charging pro‐  
cedure.  
– Switch off all electrical con‐  
sumers.  
– Wait until all electrical loads  
monitored by onboard sup‐  
ply control unit have switch‐  
ed off.  
– Remove ignition key.  
– Disconnect any suspect  
electrical equipment not  
connected to onboard sup‐  
ply as standard.  
Wait a few minutes and repeat charging procedure ⇒ page 56 .  
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3.6  
Solar panel -VAS 6102A-  
3.6.1  
Charging battery in maintenance mode  
with solar panel -VAS 6102A-  
Solar panel VAS 6102A  
General description:  
Solar panel -VAS 6102A- supports onboard supply and prevents  
spontaneous battery discharging.  
Solar panel -VAS 6102A- achieves max. voltage of 14.3 V and a  
charging current of max. 255 mA.  
Solar panel -VAS 6102A- is allowed to be used for charging all  
rechargeable lead or lead gel batteries.  
Solar panel -VAS 6102A- is connected to diagnostic connection  
in vehicle.  
A green LED is integrated in the frame to indicate its function. The  
brighter the LED, the higher the charging current.  
Integrated electronics prevent battery overcharging.  
– Secure solar panel -VAS 6102A- on interior mirror -1-.  
– Place underside on dash panel -2-.  
Note  
Solar panel -VAS 6102A- is not allowed to lie fully on dash panel.  
It is only allowed to be positioned with the bottom edge for sup‐  
port. Placing it fully on the surface can result in discolouration of  
the dash panel.  
– Pull attachment string tight so that solar panel -VAS 6102A- is  
positioned close to windscreen.  
– Connect solar panel -VAS 6102A- to diagnostic connection of  
vehicle. Connection procedure is as for vehicle diagnostic  
tester ⇒ page 78  
– Check function of solar panel -VAS 6102A- . Green LED indi‐  
cates function of solar panel -VAS 6102A- .  
3.7  
Totally discharged batteries  
WARNING  
Danger of injury! Observe warning notices and safety regula‐  
tions ⇒ page 2 !  
A battery is designated „totally discharged“ when the no-load volt‐  
age is less than 11.6 V.  
3. Charging battery  
59  
Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...  
Electrical System, General Information - Edition 07.2010  
WARNING  
Batteries where the magic eye is colourless or light yellow must  
not be checked or charged. Do not slave/jump start the vehicle!  
Danger of explosion when checking and charging or slave/  
jump starting  
These batteries must be renewed.  
Caution  
♦ Totally discharged batteries freeze prematurely.  
♦ Frozen batteries should no longer be used.  
Note  
lk  
♦ Totally discharged batteries in vehicles before registration  
must be exchanged prior to delivery. Preliminary damage can‐  
not be excluded.  
♦ Batteries that have not been used for a long period of time  
discharge themselves, e.g. those fitted in stored vehicles.  
♦ In totally discharged batteries, the electrolyte is comprised al‐  
most entirely of water because the acid content is so low.  
♦ Totally discharged batteries sulphate, that means, the entire  
plate surfaces of the battery harden.  
♦ If a battery is recharged shortly after it has totally lost its  
charge, the sulphation will mostly dissipate.  
♦ If these batteries are not recharged, the plates continue to  
harden and the ability to recharge is reduced. The result of  
which is a reduction in the battery output.  
– Check battery no-load voltage ⇒ page 25 .  
60  
Rep. gr.27 - Starter, current supply, CCS  

Related Topics

3.1 Battery charger -VAS 5095 A-
3.2 Battery charger -VAS 5900-
3.3 Battery charger -VAS 5903-
3.4 Battery charger -VAS 5906-
3.5 Midtronics -INC 940- battery charger only for USA/Canada
3.6 Solar panel -VAS 6102A-
3.7 Totally discharged batteries

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