Volkswagen Golf Quiz
Electrical system, general information

Charging battery

In this manual: Electrical system, general information
General body repairs, exterior — 230General body repairs, interior — 279General information, paint — 133Vechile- specific paint information — 27Heating, air conditioning — 156Auxiliary heater — 58Air conditioning system with refrigerant R134a — 1297- speed dual clutch gearbox 0CW — 544- cylinder injection engine(1.4 1 direct inction. turbocharger) — 182Fuel supply system - Petrol engines — 59Running gear, axles, steering — 221Brake system — 92Wheels and Tyres guide — 12Guide for using trailers — 11Wheels and Tyres Guide - General Information — 121Brake system (hybrid) — 73Electrical system — 326Communication — 65Electrical system, general information — 111
~3min read

Prerequisites:

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.

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