What is measured during the alignment check of a vehicle?

During the alignment check of a vehicle, the focus is primarily on wheel alignment, which includes key specifications such as camber, caster, and toe. These elements are crucial for ensuring that the wheels are positioned correctly relative to each other and the vehicle itself.

Camber refers to the angle of the wheels in relation to the vertical axis of the vehicle; if the tops of the tires lean outward or inward, it can cause uneven tire wear and affect handling. Caster involves the angle of the steering axis when viewed from the side of the vehicle, which impacts steering stability and returnability. Toe is the alignment of the tires in relation to the centerline of the vehicle when looking from above; if the front of the tires is closer together or further apart, it can also lead to handling issues and uneven tire wear. Properly measuring and adjusting these parameters ensures optimal vehicle handling, stability, and tire longevity.

In contrast, the other choices, while they may relate to vehicle maintenance, do not pertain directly to the alignment check process. For example, measuring wheel diameter and width pertains more to tire fitting and sizing rather than alignment adjustments. Brake alignment and pad thickness focus on braking components and their condition, while engine alignment with the chassis is more about ensuring