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Overview - Battery Cooling Module: Notes

Observe All Of The Additional Warnings For All Work Performed On Vehicles With The High Voltage System. Refer To HIGH VOLTAGE VEHICLES SAFETY PRECAUTIONS and WARNINGS WHEN WORKING ON VEHICLES WITH HIGH VOLTAGE SYSTEM .

WARNING:

Risk Of Unintended Engine Start

The Ignition Must Be Turned Off And The Ignition Key Must Remain Outside Of The Vehicle When Working On Vehicles With A High Voltage System.

WARNING:

Handling High Voltage Cables: 

  • Do not stand on or place tools on high voltage cables and their components as it may damage the cable insulation.
  • Never bend or kink high voltage cables forcefully as it may damage the cable insulation.
  • The round high voltage connectors are color coded with an external color ring and are mechanically coded using the guide- or code tabs. Always make certain that the coding matches when connecting the round connector in order to avoid any mechanical damage the high voltage connector.
CAUTION:

There is a risk of electrocution from damaged high voltage components.

Observe The Following When Working Around High Voltage Components And High Voltage Wires: 

  • Never work around high voltage components and cables with cutting, deformed, or sharp edged tools, or heat sources such as welding or soldering tools, heated air, and thermal glue.
  • Inspect the high voltage components visually before beginning.
  • Perform a visual inspection of the Electric Drive Power and Control Electronics -JX1-, the Electro-Drive Drive Motor -V141-, the Electrical A/C Compressor -V470- and the high voltage lines when working in the engine compartment.
  • Perform a visual inspection of the high voltage lines and covers when working on the underbody.
  • Perform a visual inspection of the high voltage lines and the Electrobox with the High Voltage System Maintenance Connector -TW- when working in the luggage compartment.
  • Perform a visual inspection on all of the potential equalization cables.

Observe The Following Items When Performing The Visual Inspection: 

  • The components do not display any signs of external damage.
  • The high voltage cable insulation and the potential equalization cables are not damaged.
  • The high voltage cables do not display any abnormal deformations.
  • Every high voltage component is marked with a red warning label.
NOTE:

The Battery Regulation Control Module -J840- activates the attachments using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function

For this model line, only vehicles with a high-voltage system were manufactured that had the refrigerant circuit charged with refrigerant R134a.

If it is necessary for the following procedure to perform work near high voltage components, "perform a visual inspection of the high voltage components and cables for damages" and "always follow the warnings when working on the high voltage system". Refer to PERFORMING A VISUAL INSPECTION OF DAMAGE TO HIGH VOLTAGE COMPONENTS AND CABLES ) and WARNINGS WHEN WORKING ON VEHICLES WITH HIGH VOLTAGE SYSTEM .

Fig 1: Exploded View Of Battery Cooling Module Component Location
GWWA87-11027Courtesy of AUDI OF AMERICA, LLC
  1. Condensation Water Drain
  2. Bonded Rubber Bushing
  3. Nut
    • 9 Nm 
  4. Battery Cooling Module
  5. Bolt
    • refer to the appropriate EXPANSION VALVE WITH HYBRID BATTERY REFRIGERANT SHUT-OFF VALVE 2 -N517 service information
  6. Expansion Valve with Hybrid Battery Refrigerant Shut-Off Valve 2 -N517-
    • refer to the appropriate EXPANSION VALVE WITH HYBRID BATTERY REFRIGERANT SHUT-OFF VALVE 2 -N517 service information
  7. Seals
    • Always replacing
  8. Clamp
  9. Screw
    • 1.5 Nm 
  10. Hybrid Battery Recirculation Door Positioning Motor 1 -V479- :
  11. Screw
    • 1.5 Nm 
  12. Hybrid Battery Recirculation Door Positioning Motor 2 -V480-
  13. Temperature Sensor before Hybrid Battery Evaporator -G756-
  14. Battery Fan 1 -V457-
  15. Screw
    • 1.5 Nm
  16. Temperature Sensor after Hybrid Battery Evaporator -G757-
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