Suspension

Anti-roll-bar link

Connects an anti-roll bar to the suspension.

Drag to turn it Open in the 3D lab
Where it sits

Between each bar end and a strut or suspension arm.

How it works

Jointed links transfer force as suspension moves through its range.

Think of it as

The short messenger transmitting wheel movement to the roll bar.

Symptoms when it fails

Rattles over small bumps can involve links, bar mounts or other suspension joints.

Lifespan

Wear is condition-based and strongly affected by roads, loads, impacts and seals. There is no universal replacement mileage.

Repair cost

Links and bushings are smaller repairs than complete adaptive struts or air-spring systems; alignment may be needed after work.

The BMW angle

BMW drop links are axle- and chassis-specific, even when they look like simple rods.

Used in

BMW passenger cars and SAVs; spring, damper and axle design depend on chassis and options.

Sources
Same system

Suspension