Get Checking battery -> 2.3 Checking colour display of magic eye Guide for 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

Depending on the result of the battery test, „perform current

draw test“ ⇒ page 22 .

2.2

Visual check

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions ⇒ page 2 !

It is essential to visually inspect the external condition, to check

the terminals and to ensure proper attachment of the battery be‐

fore performing extensive tests.

Caution

♦ The battery will be damaged if the battery is not secured

correctly.

♦ Vibrations shorten the life of the battery, there is a danger

of an explosion, the cell plates may be damaged and the

clamping bracket may damage the battery housing.

♦ Check battery is securely seated, if necessary tighten se‐

curing bolt to specified torque.

Performing this test establishes:

♦ If battery housing is damaged Electrolyte can leak out if the

housing is damaged. If battery acid leaks out, s^le^krious damage

to the vehicle could be caused. Treat components affected by

leaked battery acid immediately with acid neutraliser or a soap

solution.

♦ Check whether the battery terminals (battery wire connec‐

tions) are damaged. The necessary contact on the battery

clamps cannot be guaranteed if the battery terminals are dam‐

aged. When connecting the battery clamps, tighten the battery

clamps to torque specified in this workshop manual „Electrical

system“ for the respective vehicle. If the battery clamps are

not correctly seated and tightened, the wiring may burn. Which

will cause malfunctions in the electrical system. Therefore it

can no longer be guaranteed that the vehicle will function cor‐

rectly.

2.3

Checking colour display of magic eye

2.3.1

Checking colour display of „3-colour“

magic eye

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions ⇒ page 2 !

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

General information on magic eye:

Applies for all batteries with „1J0“, „7N0“ and „3B0“ indexes in

original equipment and for all replacement batteries 191 915 105

AB and from „000 915 105 AX“ index.

The magic eye provides information concerning electrolyte level

and the charge state of the battery.

Before carrying out a visual check, tap the magic eye lightly and

carefully using the handle of a screwdriver. The air bubbles, which

can influence the display, will dissipate when doing this. The col‐

our display of the magic eye will therefore be more accurate.

Note

♦ Air bubbles can form below the magic eye particularly when

the battery is being charged, including during normal vehicle

operation. These distort the colour displayed by the magic eye.

♦ Because the magic eye is located in only one cell, the display

applies only to this cell. An exact determination of the battery

condition is only possible through a battery load test

⇒ page 9 or a battery test ⇒ page 14 .

♦ The magic eye can be located at various positions on the bat‐

tery.

Three different colour displays are possible:

♦ »Green«, battery is charged sufficiently.

♦ »Black«, battery partly discharged, charge state < 65 % or

completely discharged

♦ »Colourless or light yellow«, battery must be renewed.

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.

2.3.2

Checking colour display of „2-colour“

magic eye

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions ⇒ page 2 !

2. Checking battery

Bora 1999 ➤ , Bora Variant 1999 ➤ , CC 2010 ➤ , Eos 2006 ➤ , Golf 199 ...

Electrical System, General Information - Edition 07.2010

General information on magic eye:

For batteries from „5K0“ index in original equipment and for re‐

placement batteries 191 915 105 AC from „000 915 105 DX“

index, the »green« colour display for charge state display has

been discontinued. The introduction of the new colour display will

take place gradually, i.e. there will be a transition period for both

displays. In the future, the only remaining colours will be »black«

or »colourless or light yellow«.

The magic eye provides information concerning the electrolyte

level of the battery.

The charge state of the battery can no longer be read from the

magic eye, a battery load test must be carried out for this

⇒ page 9

Before carrying out a visual check, tap the magic eye lightly and

carefully using the handle of a screwdriver. The air bubbles, which

can influence the display, will dissipate when doing this. The col‐

our display of the magic eye will therefore be more accurate.

Note

♦ Air bubbles can form below the magic eye particularly when

the battery is being charged, including during normal vehicle

operation. These distort the colour displayed by the magic eye.

♦ Because the magic eye is located in only one cell, the display

applies only to this cell. An exact determination of the battery

condition is only possible through a battery load test

⇒ page 9 .

♦ The magic eye can be located at various positions on the bat‐

tery.

Three different colour displays are possible:

♦ »Black«, electrolyte level is OK.

♦ »Colourless or light yellow«, electrolyte level too low. The bat‐

tery must be renewed.

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.

2.4

Battery tester with printer -VAS 5097 A-

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions ⇒ page 2 !

It is not necessary to remove or disconnect battery when using

battery tester with printer -VAS 5097 A- .

Battery tester with printer -VAS 5097 A- can be used to test 12 V

starter batteries.

Rep. gr.27 - Starter, current supply, CCS

Checking battery -> 2.3 Checking colour display of magic eye for Your Volkswagen Sharan VAN First Generation (1995-2010)

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