Get Checking battery 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

2

Checking battery

WARNING

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 .

2.1

2.1.1

Checking the various types of batteries

Checking battery with magic eye

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions ⇒ page 2 !

Carry out procedure in sequence as follows:

1.

2.

Visual check ⇒ page 6

Check colour display of „3-colour“ magic eye ⇒ page 6

or „2-colour“ magic eye ⇒ page 7 .

WARNING

lk

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.

Perform a battery load test using battery tester with printer

-VAS 5097 A- ⇒ page 9 .

– Battery test with battery tester with printer -VAS 6161-

⇒ page 14 .

4.

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

draw test“ ⇒ page 22 .

2.1.2

Absorbent glass mat battery

Carry out procedure in sequence as follows:

1.

2.

Visual check ⇒ page 6

Perform a battery load test using battery tester with printer

-VAS 5097 A- ⇒ page 9 .

– Battery load test with battery tester with printer -VAS 6161-

⇒ page 14

2. Checking battery

5

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Electrical System, General Information - Edition 07.2010

3.

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 !

6

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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.

lk

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

7

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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 .

lk

♦ 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.

8

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Electrical System, General Information - Edition 07.2010

♦ 80 - 520 A low-temperature test current according to DIN

(Deutsche Industrie Norm (German Industrial Standard))¹⁾

♦ 95 - 574 A cold cranking current according to IEC (Interna‐

tional Engineering Consortium)

♦ 136 - 855 A cold cranking current according to EN/ SAE (Eu‐

ropean Norm/Standard of Automotive Engineers)

1) Batteries with cold cranking current higher than 499 A according to DIN (e.g.

520 A, 580 A or 600 A) can be temporarily tested using setting for 499 A according

to DIN.

lk

For test purposes the battery is loaded with a current which is

similar to the starting current required to start the vehicle. The

battery is assessed on this loading and the result is printed out.

Note

Observe the ⇒ instruction manual of Battery tester with printer -

VAS 5097 A- or the sticker ⇒ Brief instructions for battery tester

with printer -VAS 5097 A- on the unit or table: Cold cranking cur‐

rent ⇒ page 11 .

2.4.1

Description of battery tester with printer

-VAS 5097 A-

Battery tester with printer -VAS 5097 A-

1 - Green LED, „unit operating“

2 - Red LED, „unit reverse-polarity connected“

3 - Red LED, „battery cannot be tested“, recharge battery.

4 - Start button

5 - Cold cranking current selection switch

6 - ON/OFF and functions switch

7 - Selection switch (battery tester to pick-off point on battery/

external test point in engine compartment)

8 - Paper feed button

9 - Printer

2.4.2

Performing battery load test using bat‐

tery tester with printer -VAS 5097 A-

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions ⇒ page 2 !

Special tools and workshop equipment required

2. Checking battery

9

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Electrical System, General Information - Edition 07.2010

♦ Battery tester with printer -VAS 5097 A-

lk

Note

Observe technical product information TPI 2012182 for battery

tester with printer -VAS 5097 A- .

Performing battery load test:

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.

Note

The battery must have a temperature of at least 10 °C.

– Switch off ignition and all electrical consumers.

– Check magic eye on batteries with magic eye ⇒ page 5 .

– Check low-temperature test current in amperes (A) according

to DIN from indications on battery or set setting range on bat‐

tery tester with printer -VAS 5097 A- according to table

⇒ „2.4.3 Table: cold cranking current“, page 11 .

Note

If the battery values are shown in IEC or EN/SAE instead of DIN

then convert figures using table

⇒ „2.4.3 Table: cold cranking current“, page 11 or using table

on unit.

– Select low-temperature test current via low-temperature test

current selection switch ⇒ page 9 .

– Select measuring range 80 - 379 A or 380 - 499 A with ON/

OFF and functions switch ⇒ page 9 .

10

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

lk

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

Electrical System, General Information - Edition 07.2010

Note

Batteries with cold cranking current higher than 499 A according

to DIN (e.g. 520 A, 580 A or 600 A) can be temporarily tested

using setting for 499 A according to DIN.

– Connect red terminal „+“ of tester to positive terminal.

– Connect black terminal „-“ of tester to negative terminal.

Note

♦ Ensure test clamps have a good contact!

♦ Observe technical product information TPI 2012182 for battery

tester with printer -VAS 5097 A- .

– Select point of connection of test terminals with selection

switch ⇒ page 9 .

1 - Connected directly to battery

2 - Connected to external test points in engine compartment

– Check that the figures given on the battery are correct for the

settings on the battery tester.

– Press start test button ⇒ page 9 .

The green LED lights up ⇒ page 9 . The test program runs through

automatically. The test result is printed out by the printer

⇒ page 12 . If the unit does not start (LED does not light up, no

print out), recharge battery ⇒ page 25 and test again.

– Switch off unit ⇒ page 9 .

– Remove test terminals.

Note

♦ The test is completed after about 20 seconds.

♦ The result of the test is printed out by the printer.

♦ Perform test once only. Repeating the test falsifies the result.

♦ The tester requires approx. 30 minutes to cool down before it

is ready for the next test.

2.4.3

Table: cold cranking current

Cold cranking current in A

EN/ SAE

IEC

⇒

DIN

136 – 17

178 – 219

220 – 261

262 – 303

304 – 345

346 – 387

388 – 429

430 – 471

472 – 513

95 – 124

125 – 154

155 – 184

185 – 214

215 – 244

245 – 274

275 – 304

305 – 334

335 – 364

⇒

80 – 104

105 – 129

130 – 154

155 – 179

180 – 204

204 – 229

230 – 254

255 – 279

280 – 304

2. Checking battery

11

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Electrical System, General Information - Edition 07.2010

Cold cranking current in A

EN/ SAE

IEC

⇒

DIN

514 – 555

556 – 597

598 – 639

640 – 657

658 – 675

676 – 693

694 – 711

712 – 729

730 – 747

748 – 765

766 – 783

784 – 801

802 – 819

820 – 837

838 – 855

365 – 394

395 – 424

425 – 454

455 – 464

465 – 474

475 – 484

485 – 494

495 – 504

505 – 514

515 – 524

525 – 534

535 – 544

545 – 554

555 – 564

565 – 574

⇒

305 –329

330 – 354

355 – 379

380 – 389

390 – 399

400 – 409

410 – 419

420 – 429

430 – 439

440 – 449

450 – 459

460 – 469

470 – 479

480 – 489

490 – 499^{2) 1)}

1)

2)

Batteries with cold cranking current higher than 499 A according to DIN (e.g. 520 A, 580 A or 600 A) can be temporarily tested using

lk

setting for 499 A according to DIN.

2.4.4

Evaluating test result of battery load test

Because of the high load on the battery during this test (a high

current flows) the battery voltage drops.

♦ If the battery is OK, the voltage value drops only to the mini‐

mum voltage.

♦ If the battery is defective or has a low charge, the battery volt‐

age quickly drops below the minimum voltage.

♦ After the test is completed, this low voltage value remains over

a longer period, and the voltage increases very slowly again.

♦ Perform test once only. Repeating the test falsifies the result.

♦ The tester requires approx. 30 minutes to cool down before

carrying out another test or testing another battery to ensure

the results are not falsified.

12

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Electrical System, General Information - Edition 07.2010

2.4.5

Comments concerning test print out

1 - Measuring range selected on tester

2 - Diagram -arrow- indicates battery condition.

3 - Test result

4 - Battery voltage during load test.

5 - Vehicle data and date Must be completed by test personnel

lk

Note

♦ The test printout is required for warranty claims.

♦ Perform test once only. Repeating immediately the test falsi‐

fies the result.

2.4.6

Assessing test results

Printout from battery tester

Starting capability very good

Starting capability good

Measure to be performed

Battery OK.

Starting capability sufficient

Evaluation by carrying out a

current draw test when charg‐

ing ⇒ page 22

Starting capability poor

Starting capability very poor

Cannot be tested

Evaluation by carrying out a

current draw test when charg‐

ing ⇒ page 22

Evaluation by carrying out a

current draw test when charg‐

ing ⇒ page 22

Perform battery charging

⇒ page 25 and repeat test.

2. Checking battery

13

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Electrical System, General Information - Edition 07.2010

2.5

Battery tester with printer -VAS 6161-

General description

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 6161- .

The battery tester with printer -VAS 6161- does not load the bat‐

tery any more. It works on the principle of dynamic conductance

acquisition.

Every battery type is stored in the tester.

Data can be stored on an SD card.

The battery tester with printer -VAS 6161- can be updated via an

interface or an SD card, so that battery data from Volkswagen are

always up to date.

The integrated temperature sensor improves measurement qual‐

ity.

A 2D scanner is available as an option to read data directly from

the bar code of the battery.

Note

Observe the ⇒ operating manual of the battery tester with printer

-VAS 6161- .

lk

2.5.1

Description of battery tester with printer

-VAS 6161-

1 - Integrated printer

2 - Operating lever for paper compartment

3 - Paper slot

4 - LCD screen with main menu

5 - Control panel with On/Off button

6 - Connection for battery test cable

7 - Memory card slot

8 - Infrared temperature sensor

9 - Data transmitter for PC

14

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Electrical System, General Information - Edition 07.2010

2.5.2

Perform battery test with battery tester

with printer -VAS 6161- .

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions ⇒ page 2 !

Special tools and workshop equipment required

♦ Battery tester with printer -VAS 6161-

lk

Performing battery test:

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.

– Check magic eye on batteries with magic eye ⇒ page 5 .

– Switch on unit.

– Connect red terminal „+“ of tester to positive terminal.

– Connect black terminal „-“ of tester to negative terminal.

Note

Ensure test clamps have a good contact!

– Select one of the following functions.

♦ Maintenance test (only in new cars before registration, in sta‐

tionary and stock maintenance programme ⇒ page 16 )

♦ Service test ⇒ page 16

♦ Guarantee test ⇒ page 17

2. Checking battery

15

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Electrical System, General Information - Edition 07.2010

Note

♦ The test is completed after about 10 seconds.

♦ The result of the test is printed out by the printer.

♦ The tester requires no cooling phase before it is ready for the

next measurement.

lk

2.5.3

Performing maintenance test

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.

– Select „Maintenance test“ in the menu.

– Connect scanner.

Note

If no scanner is available, write vehicle identification number on

test printout by hand.

– Scan in vehicle identification number.

– Select „On battery terminal“ or „On jump-start point“.

– Scan in barcode or select type and manufacturer manually in

menu.

– Measure temperature. Hold temperature sensor about 5 cm

above terminal connection until temperature stabilises.

– Start test.

– Print out test log if necessary.

2.5.4

Perform service test

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.

– Select „Service test“ in the menu.

– Select „On battery terminal“ or „On jump-start point“.

– Select vehicle type.

– Measure temperature. Hold temperature sensor about 5 cm

above one battery terminal until temperature stabilises.

16

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– Select battery type „Normal“, „AGM“, „2*6V“ or „Gel“.

– Select „CCA“, „JIS“, „DIN“, „SAE“, „IEC“ or „EN“ norm.

– Start test.

– Print out test log if necessary.

2.5.5

Perform guarantee test

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.

– Select „Guarantee test“ in the menu.

– Select „In vehicle“ or „Outside vehicle“.

– Select „On battery terminal“ or „On jump-start point“.

– Select vehicle type.

– Measure temperature. Hold temperature sensor about 5 cm

above one battery terminal until temperature stabilises.

– Select battery type „Normal“, „AGM“, „2*6V“ or „Gel“ or scan

in.

– Select battery capacity or scan in.

– Start test.

lk

– Print out test log if necessary.

2.5.6

Comments concerning test print out

1 - Check type.

2 - Battery test result

3 - Measured voltage

4 - Measured cold start value of battery.

5 - Nominal cold start value of battery selected on tester.

6 - Measured temperature of battery.

7 - Fitting location of battery

8 - Position of battery clamp selected on tester

9 - Selected battery technology.

Note

The test printout is required for warranty claims.

2.5.7

Assessing test results

Evaluating battery test results for guarantee and service tests

Battery test results

Battery OK

Measures

No measures on battery

2. Checking battery

17

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Battery test results

Measures

Battery OK - recharge.

Charge battery ⇒ page 25 . In

case of discharging, look for

fault

Perform current draw test

⇒ page 22 . Fully charge bat‐

tery ⇒ page 25 and_lkrepeat

test.

Renew battery.

Disconnect battery and repeat

test. The result „Renew battery“

may be caused by a weak cable

contact.

Battery cell defective - renew. Renew battery.

Check connection.

Connect cable directly to bat‐

tery and not to jump start termi‐

nal.

Evaluating battery test results for maintenance test

Battery test results

Battery OK

Measures

No measure

Charge battery immediately.

Charge battery fully

⇒ page 25 .

Mark as defective.

Check tester connection.

Disconnect battery and repeat

test. The result „Check tester

connection“ may be caused by

a weak cable contact.

Check connection.

Noises

Connect cable directly to bat‐

tery and not to jump start termi‐

nal.

Wait until measured value ap‐

pears on display.

2.6

Midtronics -MCR340V- battery tester

only for USA/Canada vehicles

General description ⇒ page 18

Perform battery test with Midtronics -MCR340V- battery tester

⇒ page 19 .

Dealing with problems with Midtronics -MCR340V- battery tester

⇒ page 21

2.6.1

General description

WARNING

Danger of injury.

Before working on the battery, read through the warning and

safety regulations carefully, and comply with them ⇒ page 2 .

Dispose of electrolyte (mixture of sulphuric acid and water)

safely! Waste electrolyte is only allowed to be disposed of at

appropriately indicated collecting points. Comply with the lo‐

cally applicable disposal guidelines.

Do not test batteries that are liberating gas. Otherwise, there

is a danger of explosion.

18

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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.

Note

To prevent damage to the battery and vehicle, note the types of

battery and the remarks given ⇒ page 1 .

Batteries in VW vehicles are only allowed to be tested with battery

testers approved by VW. In the USA/Canada, it is permitted for

the Midtronics -MCR340V- battery tester to be used.

Read all the information about safety, setup and operation in the

operating instructions for the Midtronics -MCR340V- battery test‐

er and follow the instructions to the letter.

lk

Refer to ⇒ Self-study programme No. ; Vehicle batteries for more

information.

The following charging and analysis procedures apply to all bat‐

teries, all battery installation locations (engine compartment or

luggage compartment) and battery purposes (starter battery or

second/convenience battery).

Always comply with the safety regulations, the regulations for

setting up the battery tester, the display menu/display buttons,

LEDs and the operating procedures described in the ⇒ operating

manual MCR340V .

Note

Observe and comply with all subsections, remarks and referen‐

ces to the vehicle and battery type, etc. to be tested.

2.6.2

Performing battery test with Midtronics -

MCR340V- battery tester

Prerequisites:

WARNING

Before working on the battery, read through the warning and

safety regulations carefully, and comply with them ⇒ page 2 .

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.

– Read general description ⇒ page 18 .

– Perform visual check ⇒ page 6 .

2. Checking battery

19

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Electrical System, General Information - Edition 07.2010

– Open bonnet or cover for other installation location of battery.

– Determine whether battery type is „Standard“ or „AGM“.

– Remove covers from battery positive and negative terminals.

– Use wing covers or other kinds of cover before you use equip‐

ment in engine compartment or interior.

– Close all doors.

Note

♦ Battery temperature must be at least 10 °C.

lk

♦ For additional information, refer to the ⇒ operating manual

INC 940 .

Perform test:

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.

– Check magic eye on batteries with magic eye ⇒ page 5 .

– Switch on tester.

– Connect red terminal „+“ of tester to positive terminal.

– Connect black terminal „-“ of tester to negative terminal.

Note

Ensure test clamps have a good contact!

– Select „In vehicle“ or „Outside vehicle“.

– Select „Warranty test“.

Note

Use the print function of the Midtronics -MCR340- tester if the test

results are required for handling warranty applications.

– Select battery type „Standard “ or „AGM“.

– Make a note of the DIN value of the battery as shown on the

battery sticker. If there is no DIN value on the sticker, make a

note of the SAE value.

– Enter DIN value in tester and perform battery test ⇒ operating

manual MCR340V .

– If you are using SAE value, access „Miscellaneous“ menu and

change from „DIN“ to „SAE“ ⇒ operating manual MCR340V .

20

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

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Electrical System, General Information - Edition 07.2010

Note

Always use DIN value from battery sticker! Otherwise, test result

will be falsified.

2.6.3

Assessing test results

Results of battery test:

Battery test results

Battery OK

Measures

None

Good - charge

Use Incharge

Renew battery.

Charge battery ⇒ page 55 .

Renew battery ⇒ Electrical sys‐

tem; Rep. gr. 27 ; Removing

and installing battery

Battery cell defective

Renew battery ⇒ Electrical sys‐

tem; Rep. gr. 27 ; Removing

and installing battery

2.6.4

Dealing with problems with Midtronics -

MCR340V- 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

MCR340V .

lk

Display message

No display

Measures

– Check whether terminals of

battery tester are firmly con‐

nected to battery terminals.

– Check battery terminals are

tightened according to reg‐

ulations and do not have

corrosion.

– Charge battery

⇒ page 55 .

System noise

– 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.

2. Checking battery

21

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

Electrical System, General Information - Edition 07.2010

Wait a few minutes and test again ⇒ page 19 .

Note

If you have performed test at jump-start point and message does

not disappear, perform test directly on battery.

2.7

Current draw test

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.

Note

♦ Ensure that the correct charging mode is set on the charger

so that the current draw test is not falsified.

♦ VAS 5095 A ⇒ page 26

♦ VAS 5900 ⇒ page 30

♦ VAS 5903 ⇒ page 41

To quickly ascertain the state of discharged batteries, the battery

current draw test whilst charging helps to determine whether the

battery must be replaced or fully recharged.

Note

For battery tester with printer -VAS 6161- , the current draw test

must always be performed when the test result „Perform current

draw test“ appears on the display.

The current draw test must be carried out when the test result with

battery tester with printer -VAS 5097A- is as follows:

1 - Starting output sufficient

2 - Starting output poor

3 - Starting output very poor

4 - Cannot be tested – charge battery and repeat test.

- and when the tester will not switch on (no LED, no printout)

Depending on the test result ⇒ page 13 with battery tester with

printer -VAS 5097A- , further procedures or tests may be required

before making a final decision on the condition of the battery.

Performing a current draw test whilst charging a battery will quick‐

ly establish whether a partly or fully discharged battery

⇒ page 59 can be recharged to return it to a serviceable condi‐

tion.

22

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

lk

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

Electrical System, General Information - Edition 07.2010

Test requirements

♦ When charging a battery, battery temperature must be at least

≥ +10 °C.

♦ The charger must be capable of outputting a charge current of

at least 30 A, as for example with VAS 5095A, VAS 5900, VAS

5903

♦ The battery's current draw must be measured with a current

pick-up clamp, e.g. VAS 5051B/7, when charging with battery

charger -VAS 5095A- . Battery charger -VAS 5900- and bat‐

tery charger -VAS 5903- display the current draw on the unit.

– Connect battery to battery charger and start charging se‐

quence.

– Measure charging current of battery after 5 minutes.

Test result:

If the current draw A is higher than 10 % of the nominal capacity

(e.g. > 6.1 A for a 61 Ah battery), fully charge battery and test

again.

Note

For Eos with two 6V absorbent glass mat batteries, the charge

current must only be 5 % higher than the nominal capacity of the

battery. Example for Eos: the 50 Ah battery must have a charge

current higher than 2.5 A after 5 minutes of starting the charging

sequence.

– Fully charge the battery when the charge current is higher than

10 % of the nominal capacity (observe exception for Eos in

above note).

– Perform battery test after allowing battery to rest for two hours

⇒ page 9 .

If the charge current, in amperes, lies below 10 % of the nominal

capacity after 5 minutes of starting the charging sequence (5 %

for the 2 x 6 volt batteries in Eos) (example for 50 Ah battery <

5A), renew battery. For Guarantee and ex-gratia cases: complete

battery test sheet and keep it with the battery.

2.8

Checking no-load voltage of battery on

stock and stored vehicles

WARNING

Danger of injury! Observe warning notices and safety regula‐

tions ⇒ page 2 !

Note

♦ The no-load voltage test may only be carried out to assess the

condition of the battery on stock and stored vehicles within the

framework of prescribed maintenance.

♦ The no-load test serves to determine whether a battery on a

stock or stored vehicle requires recharging ⇒ Maintenance

tables „Service for stock and stored vehicles“ .

Special tools and workshop equipment required

2. Checking battery

23

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

Electrical System, General Information - Edition 07.2010

♦ Hand multimeter -V.A.G 1526 B-

Test conditions

The battery must not have been charged or discharged within the

last 2 days.

– Check battery no-load voltage with hand multimeter -V.A.G

1526 B- .

No-load voltage

11.60 V

Charge

0 %

Condition of battery

Discharged, no capacity Heavily discharged ⇒ page 59 .

lk

Measured value

Measure to be performed

No-load voltage ≥ 12.5 V

No-load voltage < 12.5 V

No-load voltage OK

Charging battery ⇒ page 25

24

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

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

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