The front suspension of the longitudinal engine Audis (and the Seat Exeo derived from them) works with four control arms per side: two above, two below. That gives excellent steering when new, but it also means four ball joints and eight bushes per side: sixteen wear points at the front in total.

The first complaints appear at around 100,000 to 120,000 km: knocking over bumps, squeaking, vague steering, vibration through the wheel at higher speed, and uneven tyre wear from the disturbed suspension geometry.

Replacing a single arm is not expensive, but it rarely stops at one, and the work also needs a wheel alignment afterwards. Workshops therefore offer a full arm kit, which is a serious item, and an excellent bargaining point, because you can hear it on the test drive and see it on the tyres.