Volkswagen Polo Service & Repair Manual: Battery, Charging

Requirements

WARNING Batteries that have a light yellow visual indicator do not have to be tested or charged. Jump starting must not be used!

There is a risk of explosion during testing, charging or jump starting.

These batteries must be replaced.

Battery Tester Charger Kit -GRX3000VAS- output - setup performed (unit number, date/time). Refer to Battery Tester Charger Kit -GRX3000VAS- Operating Instructions.

General information, checking. Refer to → Chapter „Battery Tester Charger Kit -GRX3000VAS- General Description“.
Open the hood or open the cover if the battery is installed somewhere else.
Visually inspect the battery. Refer to → Chapter „Visual Inspection“.
Determine if it is a “standard” battery (wet battery) or an “AGM” battery.
Close all the vehicle doors.

Note

The battery temperature must be at least 10 °C.

Refer to the Battery Tester Charger Kit -GRX3000VAS- Operating Instructions for more information.

Perform Charging Procedure

Turn off all electrical consumers.
Turn off the ignition and remove the key.
Clamp the red charging clamp “+” of the charger to the positive battery terminal.

Note In the case of vehicles with a start/stop function and an installed Battery Monitoring Control Module -J367-, the black charging clamp (-) must be connected to the body ground. The start/stop system will malfunction if it is connected to the negative terminal on the battery.

Connect the black charging clamp “-” of the charger to the negative battery terminal.
Connect the Battery Tester Charger Kit -GRX3000VAS- battery charger to a grounded socket.
Switch the “ON/OFF” switch on the Battery Tester Charger Kit -GRX3000VAS- battery charger to “ON”.
Select the charge mode “automatic” or “manual.”.
Select the test: “inside the vehicle” or “outside of the vehicle”.
Determine if it is a “standard” battery or an “AGM” battery.
Select the type of test: “Warranty” or “other”. Note any other additional details (depending on the type of test).

Note Refer to the Battery Tester Charger Kit -GRX3000VAS- Operating Instructions for more information. If necessary, go through all the menu points when performing a “Warranty” test. Refer to Warranty Service Circulars. The Battery Tester Charger Kit -GRX3000VAS- battery charger checks the battery and starts the charging process. The display then show one of three results with the exact charging time.

Result:	Measure:
Battery good	The battery can be used again.
Charging is required	The test shows a low state of charge. The charging process begins and the exact duration for the charging will be displayed The cold start performance and the remaining charging time are displayed and updated regularly.
Replace the battery.	Battery faulty. The charging process is interrupted. Replace the battery.

Note If other malfunction messages or text displays, other than the ones already mentioned, appear in the display on the Battery Tester Charger Kit -GRX3000VAS- battery charger, then refer to chapter. Refer to → Chapter „Battery Tester Charger Kit -GRX3000VAS- Troubleshooting“.

WARNING If the battery starts to vent gas heavily, stop the charging process. Press the “Stop” button on the front side.

After the charging and testing process is completed, the Battery Tester Charger Kit -GRX3000VAS- battery charger will display “battery good” or “replace the battery” and the total charging time. Depending on the individual circumstance (Warranty Claim, Repair Order, Evaluation and File), there are three possible messages

Produce a test code (possible only after automatic charging and testing).

Print last test result (for Warranty)

Display the last test result.

Note Refer to the Battery Tester Charger Kit -GRX3000VAS- Operating Instructions for more information.

Battery, Charging