Volkswagen Golf Service & Repair Manual: Charging battery
WARNING
| It is not permissible to test or charge batteries
whose magic eye shows light yellow. 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
→ Chapter. |
| – |
Open bonnet or cover for other installation location of
battery. |
| – |
Perform visual check of battery
→ Chapter. |
| – |
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
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 “-” 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). |
| – |
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
“Warranty” test type
→ Warranty service circular. |
| Midtronics -INC 940- battery charger tests battery and
starts charging procedure. The display then shows one of three
results, as well as approximate charging time. |
|
|
|
| Result: |
Measures: |
| Battery OK |
Battery can be returned to
operation. |
| Charging required |
| Test found low charge level. |
| Charging starts and approximate charging duration is
displayed. |
| Achieved cold-start performance and remaining charging time
are displayed, and are updated regularly. |
|
| Renew battery |
Battery defective. Charging
procedure is interrupted. Renew battery. |
Note
| In case Midtronics -INC 940- shows fault messages or text
displays other than those listed above, please refer to
→ Chapter. |
WARNING
| Stop charging if battery is emitting 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
circumstance (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. |
|
Batteries in VW vehicles may only be charged with battery
chargers approved by VW. In the USA/Canada, it is permitted for
the Midtronics -INC 940- battery charger to ...
Under certain circumstances, the display may show errors or
messages according to status.
The most frequent display messages are listed below,
...
Other materials:
Removing and installing Bowden cable for backrest release
Note
The left and right Bowden cables cannot be renewed
individually.
Special tools and workshop equipment
required
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Switch off the Adaptive Cruise Control (ACC) temporarily in the following situations
First read and observe the introductory information
and safety warnings The Adaptive Cruise Control (ACC) should be switched
off in the following situations due to system limitations :
When turning off roads, driving around roundabouts, narrow curves, joining
motorways, exiting from ...
Description and function of the airbags
First read and observe the introductory information
and safety warnings The airbags can protect vehicle occupants during frontal
and side collisions by reducing their movement in the direction of the collision.
When an airbag is triggered, it is inflated by a gas generator. This causes the ...
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General description of Midtronics -INC 940- battery tester
Dealing with problems with Midtronics -INC 940- battery tester