EPS faults range from mechanical wear to sensor and control unit errors. Heavy steering and dashboard warnings signal the need for urgent repair.
Electric power steering consists of a mechanical part, a control unit and an electric motor. Control units are well protected and fail less often, but faults can appear on either side.
- Worn upper shaft splines or bushings cause play and knocking.
- Rusted bearings and joints lead to binding, noise and a sticking steering wheel.
- A failed steering sensor can disable assistance completely, and control unit settings can trigger errors.
Heavy steering, difficulty turning, noises with the engine running and dashboard warnings all call for urgent repair, ideally at a specialised workshop with modern diagnostic equipment.