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Home >> Audi >> 2020 >> SQ8 Premium Plus >> Repair and Diagnosis >> Suspension >> Front Suspension >> 40 Front Suspension >> SUBFRAME >> SUBFRAME, Lowering

SUBFRAME, Lowering

Special tools and workshop equipment required 

Procedure 

-- Versions with coil springs: determine the curb weight position. Refer to WHEEL BEARING, LIFTING TO CURB WEIGHT POSITION, VEHICLES WITH COIL SPRING .

-- Versions with air suspension: determine the standard vehicle height. Refer to WHEEL BEARING AT STANDARD VEHICLE HEIGHT, LIFTING VEHICLES WITH AIR SUSPENSION .

Equipment Versions Without Sway Stabilization: 

GWWA40-10482Courtesy of AUDI OF AMERICA, LLC

-- Remove the screw -arrow- and free up the ground wire.

-- Remove the screw -2-.

GWWA40-10123Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -3- and free up the wire.

Continuation for All Vehicles: 

-- Remove the screw -1-.

-- Release the catches -arrows- and free up the bracket -4- for the wires from the subframe.

TIP:

The illustration shows the installation position on a vehicle without the parking heater.

-- Free up the wire to the steering gear and to the stabilizer bar.

-- Secure the subframe. Refer to SUBFRAME, SECURING .

-- Remove the left and right front longitudinal member. Refer to OVERVIEW - LOCK CARRIER .

-- Disconnect the left and right connector -3- from the level control system sensor. Free up the wires.

GWWA43-10271Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the left and right connector -3- for the electrohydraulic engine mount solenoid valve.

Fig 1: Engine Mount Component Location/Engine Mount Actuator
GWWA10-11941Courtesy of AUDI OF AMERICA, LLC

-- Remove the connector -2- from the bracket and disconnect it.

-- Free up the wire.

-- Equipment versions with support bearing: remove the left and right bolt -1- for the support bearing.

Equipped on Some Models:

Fig 2: Assembly mounts sensor component location
GWWA10-11434Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the left and right connector -1- on the sensor with the assembly mounts actuator.

Equipment Versions with Side Transmission Mount:

GWWA40-10764Courtesy of AUDI OF AMERICA, LLC

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

Equipment Versions with Sway Stabilization:

GWWA40-10762Courtesy of AUDI OF AMERICA, LLC

-- Remove the nut -arrow-. Free up the ground wire for the sway stabilization.

-- Remove the nut -1- and then remove the bolt -3-. Free up the bracket -2- with electrical wires.

GWWA40-10763Courtesy of AUDI OF AMERICA, LLC

Continuation for All Vehicles:

GWWA40-10483Courtesy of AUDI OF AMERICA, LLC

-- Remove the left and right bolts -arrow- for the subframe shield.

-- Remove the steering intermediate shaft from the steering gear and then push together. Refer to STEERING INTERMEDIATE SHAFT, REMOVING AND INSTALLING .

-- Remove the engine mount bolt -arrow- on the left and right side. If necessary, free up the wires on the longitudinal member to do this.

GWWA10-11942Courtesy of AUDI OF AMERICA, LLC

-- Lower the subframe with the : VAS6931  .

Installing 

Install in reverse order of removal and note the following:

-- Remove the : T40327  . Refer to SUBFRAME, SECURING .

-- Install the steering intermediate shaft. Refer to STEERING INTERMEDIATE SHAFT, REMOVING AND INSTALLING .

-- Lifting the wheel bearing in curb weight position. Refer to WHEEL BEARING, LIFTING TO CURB WEIGHT POSITION, VEHICLES WITH COIL SPRING ) or at standard vehicle height. Refer to WHEEL BEARING AT STANDARD VEHICLE HEIGHT, LIFTING VEHICLES WITH AIR SUSPENSION ).

CAUTION:

There Is a Risk of Accident Due to Threaded Connections That Are Not Tightened Correctly.

- Tighten threaded connections correctly before driving on public roads.

Tightening Specifications