Battery Cooling Module, Bringing Into Service Position

Installed on Vehicles with High Voltage Systems (hybrid vehicles)

Read and follow all of the supplemental warnings for all work performed on vehicles with the high voltage system, refer to HIGH VOLTAGE VEHICLES SAFETY PRECAUTIONS and WORKING ON VEHICLES WITH HIGH-VOLTAGE SYSTEM (HYBRID VEHICLES) .

If it is necessary for the following procedure to perform work in the vicinity of high voltage components, "perform a visual inspection of the high voltage components and cables for damages" (Refer to HIGH VOLTAGE COMPONENTS AND CABLES, CHECKING FOR DAMAGE .) and "always follow the warnings when working on the high voltage system", refer to WORKING ON VEHICLES WITH HIGH-VOLTAGE SYSTEM (HYBRID VEHICLES) .

-- Turn off the ignition.

Disable the High Voltage System

• Before beginning work on the high voltage system, a high voltage technician must disable the high voltage system, refer to the High Voltage System, Disabling (HYBRID) service information. .
• Use the respective processes for work performed on the high voltage system, for which the system is required to be switched on. For further information about the high voltage system, refer to WORKING ON VEHICLES WITH HIGH-VOLTAGE SYSTEM (HYBRID VEHICLES) .

Bring the Battery Coolant Module Into the Service Position

-- Remove the luggage compartment floor covering, refer to OVERVIEW - LUGGAGE COMPARTMENT FLOOR .

-- Remove the traction battery, refer to the appropriate service information. .

-- Remove the rear outlet air guide for the traction battery, refer to Traction Battery -A2- REAR OUTLET AIR GUIDE, REMOVING AND INSTALLING .

-- Remove the inlet air guide for the traction battery, refer to Traction Battery -A2- INLET AIR GUIDE, REMOVING AND INSTALLING .

-- Remove the front outlet air guide for the traction battery, refer to Traction Battery -A2- FRONT OUTLET AIR GUIDE, REMOVING AND INSTALLING .

-- Disconnect the connectors -1 and 3-.

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-- Cut through the cable tie -4- and free up the wiring harness at the body -2-.

-- Remove the nuts -arrows-.

-- Cover the batteries -A- / -A1- with for example a Fender Protector - Audi :VAG1917A  .

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-- Remove the battery coolant module -1- and lay it on the uncovered battery as illustrated.

Installing

Installation is carried out in the reverse order while observing the following.

-- Reinstall the previously removed component.

Restart the High Voltage System

-- Turn on the ignition.

-- After installing, check and, if necessary, erase the displayed faults in the Diagnostic Trouble Code (DTC) memory for the Climatronic Control Module -J255- control head and the Battery Regulation Control Module -J840-, refer to Vehicle Diagnostic Tester in the "Guided Fault Finding"  function.