Replacing front bottom wishbone

Special tools required:

2 412 505
33 5 013
33 5 014
33 5 015
2 412 506
33 5 016
33 5 020
33 5 017
2 358 630

NOTE: A wheel alignment must be performed after installation. Refer to CARRY OUT KINEMATICS DIAGNOSIS SYSTEM WHEEL ALIGNMENT WITH VEHICLE LOAD UP TO DESIGN POSITION or KINEMATICS DIAGNOSIS SYSTEM WHEEL ALIGNMENT WITH RIDE HEIGHT MEASUREMENT WITHOUT LOADING THE VEHICLE .

Necessary preliminary work:

Remove REAR WHEEL .
Remove REINFORCEMENT STRUT .

Removal:

Release screws (1) and (3).

Remove wishbone (2).

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Installation:

NOTE: To avoid damaging the new wishbone during installation, the wheel carrier in must be placed in its design position. For this purpose, the coil spring must be tensioned.

Insert lower spring cup 2 412 505 centrally into coil spring and turn to lowest winding.

Guide spindle 33 5 013, 33 5 014, 33 5 015 from below through the camber control arm and lower spring cup 2 412 505.

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Insert top spring cup 2 412 506 sideways into coil spring and turn to the uppermost winding.

CAUTION: Make sure spindle (hexagonal) is correctly seated in upper spring cup 2 412 506!

Pull spindle 33 5 013 down.

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WARNING: Danger of injury!
Make sure coil spring is correctly positioned in spring cups.

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CAUTION: Align special tools 2 412 505, 2 412 506, 33 5 013, 33 5 014, 33 5 015 centrally to obtain the largest possible contact surface on the coil spring.

Check mounting orientation of special tools 2 412 505, 2 412 506 and 33 5 013, 33 5 014, 33 5 015, correct if necessary.

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Tighten coil spring using special tools 33 5 016 and 33 5 020, gripping the spindle of the spring tensioner with special tool 33 5 017.

Tension the coil spring so that the normal position can be set by lifting the wheel carrier.

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Secure special tool 2 358 630 with wheel studs to drive flange.

Support steering stub with special tool 2 358 630 and workshop jack at wheel hub.

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Adjusting normal position:

Attention:

To raise the wheel carrier, the spring absolutely must be tensioned. Do not move the wheel carrier to normal position against the spring force.

Press wheel carrier with universal jack and special tool 2 358 630 upwards to dimension (A).

Dimension (A) = center of wheel hub to upper edge of wheel arch

F80 = 343 mm

F82, F83= 363 mm

F87, F87 Comp. (US only) = 359 mm

F87 Comp. = 351 mm

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CAUTION: Observe installation position of wishbone! See illustrations.

Position the wishbone (1) on the rear axle support.

Part : Replace screw (2).

Screw in screw (2).

Do not yet tighten the screw (2).

CAUTION: Risk of damage to the wishbone around the screw connection between the wishbone and the rear axle support!

Do not pull down too strongly on the wishbone when pivoting in the wheel carrier.

Risk of damage to the painted surface of the brake caliper!

Swivel the wishbone (1) into the wheel carrier.

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Part : Replace screw (1).

Tighten screw (1).

Tightening torque 33 32 2AZ .

Tighten screw (2).

Tightening torque 33 32 1AZ .

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Lower the universal lifter and place to one side.

Remove special tool 2 358 630.

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Check fitting of coil springs in spring pads (top and bottom), if necessary again align and relieve tension.

Remove special tools 2 412 505, 2 412 506 and 33 5 013, 33 5 014, 33 5 015.

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Required follow-up work:

Install REINFORCEMENT STRUT .
Install REAR WHEEL .
Carry out wheel alignment procedure. Refer to CARRY OUT KINEMATICS DIAGNOSIS SYSTEM WHEEL ALIGNMENT WITH VEHICLE LOAD UP TO DESIGN POSITION or KINEMATICS DIAGNOSIS SYSTEM WHEEL ALIGNMENT WITH RIDE HEIGHT MEASUREMENT WITHOUT LOADING THE VEHICLE .