Rear Suspension: Components

The wheel knuckle:

• carries the wheel hub.
• carries the brake caliper assembly.
• carries the Anti-lock brake (ABS) sensor.
• carries the wheel hub bearing and bearing seals.
• is of a unique design for vehicles with supercharger.

The stabilizer link:

• is of a steel construction with a ball joint at each end.
• transmits vertical movements of the rear suspension to the stabilizer bar.

The stabilizer bar:

• is mounted on the subframe.
• is connected to the left and right hand lower wishbones by the stabilizer bar drop links.
• is fitted to all models with or without sports suspension.

The upper arm:

• is a one piece aluminium casting and incorporates a built in ball joint.
• is the upper support for the wheel knuckle.
• is fitted with height sensors which are part of the high intensity discharge (HID) lights feature and the air suspension.

The tie rod:

• is of a two piece steel construction with a ball joint at both ends.
• is utilized to adjust rear wheel alignment.

The lower arm:

• is a one piece aluminium casting, with integral mounting points for the shock absorber and spring assembly and the stabilizer bar link.
• is the lower support for the wheel knuckle.