Electric Drive Power And Control Electronics, Removing And Installing, AUDI A6/A7: Removing

WARNING: This page is about a different car, the 2024 Audi S6 and 2024 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

There is a risk of fatal injury due to high voltage.

Electrocution by direct contact or electric arc can cause severe bodily injury or fatal injury.

- Have an Audi high-voltage technician (HVT) or an Audi high-voltage expert (HVE) de-energize the high-voltage system.

-- De-energize the high-voltage system. Refer to HIGH-VOLTAGE SYSTEM, DE-ENERGIZING .

If the control module is replaced, select the "Replace control module" function for the respective control module on the Vehicle Diagnostic Tester > .

-- Disconnect the battery. Refer to BATTERY A, DISCONNECTING AND CONNECTING, VEHICLES WITHOUT ALTERNATIVE DRIVE SYSTEM, (0K0) , or BATTERY A, DISCONNECTING AND CONNECTING, VEHICLES WITH HIGH-VOLTAGE SYSTEM, (0K3) , or BATTERY A, DISCONNECTING AND CONNECTING, VEHICLES WITH ALTERNATIVE DRIVE SYSTEM, (0K4) .

-- Remove the left center underbody trim panel. Refer to OVERVIEW - UNDERBODY TRIM PANELS .

-- Remove the left diagonal brace. Refer to DIAGONAL BRACES, REMOVING AND INSTALLING .

-- Drain the coolant. Refer to COOLANT, DRAINING, HIGH-VOLTAGE COOLING CIRCUIT .

-- Loosen the hose clamps -arrows-.

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-- Remove the coolant lines -1- from the Electric Drive Power and Control Electronics -JX1- -5-.

-- Remove the nuts -4- and free up the wires.

-- Release and disconnect the connectors -2 and 3-.

-- Release the high-voltage cable -2- and remove by pressing the release buttons.

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-- Remove the pressure equalization hose -3- by pressing the catches on both sides.

-- Remove the bolts -arrows-.

-- Remove and free up the high-voltage wiring harness for high-voltage battery -1-.

-- Position the Engine and Gearbox Jack:VAS 6931 to support the Electric Drive Power and Control Electronics -JX1-.

-- Remove the bolts -arrows- and loosen the clip and high-voltage cable -2-.

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-- Loosen and slightly lower the Electric Drive Power and Control Electronics -JX1- -1-.

-- Remove the bolts -3- from the drive motor high-voltage wiring harness (quantity 6).

-- Remove and free up the drive motor high-voltage wiring harness -4-.

-- Seal all disconnected connectors and the high-voltage cables with suitable adapters and protect contamination and coolant from entering.

-- Remove the Electric Drive Power and Control Electronics -JX1- -1-.