Mon–Fri: 09:00–18:00, Sat: 09:00–16:00

Bus Pro Service / Category

Suspension and chassis

Diagnostics, replacement of worn parts and suspension operation checks.

Van suspension on a lift with the wheel removed

The suspension connects the wheels to the body and determines how the vehicle handles uneven surfaces and maintains road contact. Knocks, bouncing or uneven tyre wear can involve different components, so this service area assesses the suspension as a connected system rather than selecting a part from a noise alone. Vehicle loading, the conditions behind the complaint and previous repairs are considered.

This category covers the suspension's springing, damping and connecting elements. Inspection helps distinguish joint wear from a damper, mounting or adjacent component problem. Maintenance decisions follow the actual condition found. Where wheel geometry or steering issues are involved, we explain how they relate to the corresponding service areas in the catalogue.

Computer chassis diagnostics

Service area

Computer chassis diagnostics

The scanner reads ABS, stability-control, and acceleration sensor data to reveal hidden chassis faults invisible on a lift inspection.

More Details
Suspension diagnostics

Service area

Suspension diagnostics

Suspension diagnostics is the first step when a vehicle knocks over bumps, continues to sway after a pothole, or wears its tyres unevenly.

More Details
Suspension play check

Service area

Suspension play check

Play is clearance where none should exist: in a ball joint, steering end, suspension bush or wheel bearing.

More Details
Shock absorber replacement

Service area

Shock absorber replacement

Shock absorbers deteriorate gradually, so drivers rarely notice the point at which they stop doing their job.

More Details
Coil spring replacement

Service area

Coil spring replacement

A spring supports the vehicle’s weight; when it sags or breaks, the body tilts, wheel angles change and the damper operates under constant overload.

More Details
Strut mount replacement

Service area

Strut mount replacement

The strut mount absorbs road impacts while allowing the strut to turn with the wheel.

More Details
Strut bearing replacement

Service area

Strut bearing replacement

The strut bearing allows the strut to rotate as the steering wheel turns.

More Details
Stabilizer link replacement

Service area

Stabilizer link replacement

Anti-roll-bar links are a common cause of suspension knocking.

More Details
Stabilizer bushing replacement

Service area

Stabilizer bushing replacement

Anti-roll-bar bushes hold the bar in the body brackets.

More Details
Control arm replacement

Service area

Control arm replacement

A control arm determines suspension geometry, so its condition affects handling and tyre wear.

More Details
Silent block replacement

Service area

Silent block replacement

A suspension bush is a bonded rubber-and-metal joint that absorbs vibration and holds the arm in its intended position.

More Details
Ball joint replacement

Service area

Ball joint replacement

A ball joint is a safety-critical connection: if it fails, the wheel can collapse into the wheel arch while driving.

More Details
Steering knuckle replacement

Service area

Steering knuckle replacement

The steering knuckle holds the hub and brake assembly and attaches to the control arms and strut; the front suspension is effectively built around it.

More Details
Wheel hub replacement

Service area

Wheel hub replacement

The wheel hub transfers loads from the wheel to the suspension and on many vehicles comes as an assembly with the bearing.

More Details
Wheel bearing replacement

Service area

Wheel bearing replacement

A worn wheel bearing produces a characteristic hum that grows with speed and changes pitch in corners: load shifts to one wheel, making the faulty side easier to hear.

More Details
Spindle replacement

Service area

Spindle replacement

The stub axle is the spindle supporting the rear wheel hub.

More Details
Drive shaft (axle) replacement

Service area

Drive shaft (axle) replacement

A driveshaft transfers torque from the transmission to the wheel.

More Details
CV joint replacement

Service area

CV joint replacement

A CV joint transmits rotation to the wheel while it steers and the suspension moves.

More Details
CV boot replacement

Service area

CV boot replacement

Timely replacement of an inexpensive CV boot helps save the much more costly joint.

More Details
Longitudinal & lateral arm replacement

Service area

Longitudinal & lateral arm replacement

Trailing and transverse arms determine the wheel’s position relative to the body.

More Details
Trailing arm replacement

Service area

Trailing arm replacement

Torque rods prevent the axle or beam from moving longitudinally and carry forces during acceleration and braking.

More Details
Torsion bar replacement

Service area

Torsion bar replacement

A torsion bar acts as a spring by twisting under load.

More Details
Wheel bearing adjustment

Service area

Wheel bearing adjustment

Vehicles with tapered roller hub bearings require periodic clearance adjustment.

More Details
Suspension fastener check & replacement

Service area

Suspension fastener check & replacement

Suspension fasteners — bolts, nuts, brackets and subframe joints — rarely get attention until they start loosening or rust through.

More Details

Need a Technician Consultation?

Describe the vehicle and symptoms, and we will suggest which check to start with.

Book a Diagnostic
Call Book Now