Radius Arm: Service and Repair

Front Axle Strut

Removal
1. Raise vehicle and remove wheel.
2. Remove underside panel and air guide.

Note The sensor is seated on the left side for vehicles with headlight beam adjustment. Disengage the strut at the axle strut. It is not necessary to calibrate the headlight beam adjustment after these assembly procedures.





3. Undo the control arm from the axle strut (A / C) and the axle strut at the control arm (arrow).





4. Press off the ball head of the axle strut using special tool 9560 (C - press-out tool). When loosening the fastening nut, counter with special tool 9546 (A - Torx screwdriver).

Note If necessary, use a driving impact to help pull off the ball head (taps of a hammer on a copper mandrel near the ball journal). The puller should press on the fastening nut, which is still fitted but loosened (protection for thread and Torx).

5. Pull the ball journal of the axle strut downwards and out of the wheel carrier (pull axle strut downwards while making sure not to tilt it).


Installation
1. Install in reverse order.
Before installing, give all parts a visual check.
Replace self-locking nuts.
Use correct tightening torques.
2. If an axle strut with an adjustable caster excenter is being installed, see Control Arm, Service and Repair, Installing Caster Eccentric.





3. When installing the control arm, make sure that the control arm fastening screw (E) is tightened only in vehicle position. Vehicle position means: Vehicle must be standing on its wheels, or the wheel suspension is lifted with a universal lift until the markings line up (arrow).
4. Check wheel alignment values and correct if necessary.