SUBFRAME With Steering Gear, Removing And Installing: Removing
- Vehicles with active suspension: pay attention to the safety precautions. Refer to SAFETY PRECAUTIONS WHEN WORKING ON VEHICLES WITH ACTIVE SUSPENSION .
-- Versions with coil springs: determine the curb weight position. Refer to WHEEL BEARING IN CURB WEIGHT POSITION, LIFTING 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 .
-- Remove the front noise insulation. Refer to OVERVIEW - NOISE INSULATION .
-- Remove the screw -arrow- and free up the ground wire.
-- Secure the subframe. Refer to SUBFRAME, SECURING .
-- Remove the front lower longitudinal member at the left and right. Refer to the appropriate Service Information. .
Equipment Versions with Sway Stabilization - Sway Stabilization Control Module in the Wheel Housing:
-- Remove the right front wheel housing liner rear section. Refer to OVERVIEW - FRONT WHEEL HOUSING LINER .
-- Disconnect the connectors -1 and 2- from the Sway Stabilization Control Module -J924-. Free up the wires.
-- Remove the nut -arrow- and free up the sway stabilization ground wire.
Equipment Version with Sway Stabilization - Sway Stabilization Control Module on the right A-pillar in the Vehicle Interior:
-- Remove the right front wheel housing liner. Refer to OVERVIEW - FRONT WHEEL HOUSING LINER .
-- Disconnect the electrical connector -1- in the right front wheel housing.
-- Free up the wiring harness -2-.
-- Remove the nut -arrow- and free up the sway stabilization ground wire.
Equipment Versions with Side Transmission Mount:
-- Remove the left and right bolts -arrows-.
Equipped on some models:
-- If installed, disconnect the left and right connector -1- on the sensor with the assembly mounts actuator.
Continuation for All Vehicles:
-- Disconnect the left and right connector -3- from the level control system sensor. Free up the wires.
-- Remove the nut -2-. Free up the coupling rod on the control arm.
-- Remove the bolt -2-.
-- Disconnect the connector -3- and free up the wire.
-- Remove the bolt -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.
-- Disconnect the left and right connector -3- for the electrohydraulic engine mount solenoid valve.
-- 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.
-- Remove the left and right bolts -arrow- for the subframe shield.
There is a risk of damaging the joints on the upper control arm with a load that is too heavy.
- Support the wheel bearing housing.
-- Tie up the wheel bearing housing on the left and the right with a Tensioning Strap:T10038 as shown.
-- To protect the threads, remove the nut -arrow- on the left and right side from the tie rod end joint pin until it is flush with the joint pin threads.
Abruptly loosening the tie rod end when removing increases the risk of injury.
It is possible that parts of the body may become bruised.
- Secure the tool with the engine and gearbox jack placed underneath.
-- Using the Ball Joint Splitter:VAS 251 805 , remove the left and right tie rod end from the wheel bearing housing.
-- Remove the nut by counterholding at the ball joint with a 6 mm inner hex socket if necessary.
-- Disconnect the left and right control arm threaded connections -1 and 3-.
-- Pivot the control arm toward the front.
TIP:
To remove the bolt -1 -, push the steering all the way to the left or right.
-- To protect the threads, remove the nut -arrow- on the left and right side from the guide link joint pin until it is flush with the joint pin threads.
Abruptly loosening the ball joint when removing increases the risk of injury.
It is possible that parts of the body may become bruised.
- Secure the tool with the engine and gearbox jack placed underneath.
-- Remove the guide link joint pin with the Ball Joint Removal Tool:T10444 from the conical seat, at the same time do not damage the CV boot.
-- Remove the nut and free up the guide link on the wheel bearing housing. Counterhold at the joint pin with a TX 40 socket if necessary.
-- Loosen the left and right nuts -arrows- several turns and remove the nut -3-.
-- Remove the left and right bolt -4-.
-- Remove the steering intermediate shaft from the steering gear and then push together. Refer to STEERING INTERMEDIATE SHAFT, REMOVING AND INSTALLING .
LHD with High-Voltage System:
-- Remove the nut -2- at the right side of the vehicle.
RSQ8 with High-Voltage System:
-- Remove the nut -2- at the left side of the vehicle.
Continuation for All Vehicles:
-- Free up the hose -3- at the shield lower section -1-.
-- Remove engine bracket left and right bolt -arrow-.
-- Lower the subframe with the Engine and Gearbox Jack:VAS 6931 .
- Make sure there is enough clearance for the wires when lowering the subframe.