SUBFRAME, Removing And Installing, AWD Vehicles: Removing

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Audi S6, 2018 Audi A6 Quattro, 2018 Audi A6, 2017 Audi S6, and 2017 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- Before starting the procedure, measure the distance from the center of the wheel to the lower edge of the wheel housing. Refer to WHEEL BEARING IN CONTROL POSITION, LIFTING VEHICLES WITH AIR SUSPENSION or WHEEL BEARING IN CURB WEIGHT, LIFTING VEHICLES WITH COIL SPRING .

NOTE:

For later assembly work where the drive axle to wheel hub threaded connection must be loosened, note that it must not be done while the vehicle is resting on its wheels. Loosen the connection between the drive axle and wheel hub. Refer to DRIVE AXLE THREADED CONNECTION, LOOSENING AND TIGHTENING .

Must be removed when assembling the brake system later. Note the following: Drive back the brake pistons. .

-- Remove the rear wheels. Refer to WHEELS AND TIRES .

-- If installed, install the diagonal braces. Refer to DIAGONAL BRACES, REMOVING AND INSTALLING .

-- Remove the rear section from the exhaust system. .

-- Remove the drive axle from the rear final drive and tie it up. Refer to FINAL DRIVE [For transmission(s) 0BK] .

Vehicles with Steel Suspension

-- Remove the coil springs. Refer to SPRING, REMOVING AND INSTALLING, COIL SPRING .

Vehicles with Air Suspension

-- Remove air springs. Refer to SPRING, REMOVING AND INSTALLING, AIR SPRING .

Continuation for All Vehicles

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-- Release the retaining tabs -1- and remove the stone deflector -2-.

-- Remove the bolt -arrow-, the washer between the wheel bearing housing and the shock absorber and then remove the left and right shock absorbers from the wheel bearing housing.

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-- Secure the vehicle to the hoist lifting arms -arrow B- with the :T10038 over the striker pin -arrow A-.

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-- Place a piece of foam rubber -1- between the sill panel and the :T10038 and then tension the :T10038 .

NOTE:

Be careful not to scratch the sill panel.

CAUTION:

The Vehicle Could Fall off the Hoist If It Is Not Secured.

-- If equipped remove the center cover -2-. Refer to UNDERBODY TRIM PANELS, REMOVING AND INSTALLING .

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-- If the vehicles has a sport differential, remove the bolts -arrows- and remove the bracket -1- from the rear final drive.

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NOTE:

Mark for connecting the connectors -2- to the oil pressure sensor, the oil temperature sensor and the clutch valves later.

-- Disconnect the connectors -2- from the oil pressure and temperature sensors and the clutch valves.

-- Disconnect the connector -4- from the All Wheel Drive Pump -V415-.

-- Unclip the wiring harness -3- from the final drive and the subframe -5 through 7- and tie it up.

-- Disconnect the connector -1- from the Left Rear ABS Wheel Speed Sensor -G46- and the Right Rear ABS Wheel Speed Sensor -G44-.

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-- Free up the wires.

-- Remove the left and right bolts -2- and free up the bracket -3- from the subframe.

-- Disconnect the left and right connectors:

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For the rear brake pad wear sensor
For the parking brake motor
For the Dynamic Ride Control (DRC) system on Audi RS 6

-- Free up the wires.

-- Disconnect the connector -1- from the Left Rear Level Control System Sensor -G76- and from the Right Rear Level Control System Sensor -G77-.

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-- Free up the wiring harness -2- -arrow-

-- Remove the underbody covers -1 and 2-. Refer to UNDERBODY TRIM PANELS, REMOVING AND INSTALLING [For transmission(s) 0BK] .

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-- If installed, remove the diagonal braces. Refer to DIAGONAL BRACES, REMOVING AND INSTALLING .

-- Remove the stone chip protection -1, 2 and 3-, if equipped.

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-- Disconnect the right and left brake line -4- on the brake hose -2-. .

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NOTE:

Ignore Item -1-.

-- Secure the subframe. Refer to SUBFRAME, SECURING, VEHICLES WITH AWD .

-- Remove the left and right bolts -arrow-.

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-- Carefully lower subframe with components. Pay attention to any wires that may be hanging down.