Diagnostics and repair of the electric steering rack EPS

Problem: An official Kia/Hyundai dealer in Warsaw brought a 2017 Kia Sportage (QLE, ~100,000 km) to STS Warsawa; when the steering wheel was turned all the way, the wheels were rubbing against the suspension arms, and diagnostics indicated that the electric power steering (EPS) rack was overheating due to excessive resistance. The dealer’s previous attempts—replacing the tie rod ends and visiting other service centers—had been unsuccessful.

Problem: The owner of a Skoda Octavia A7 2.0 TFSI 16V contacted STS (Warsaw) again with complaints about the incorrect operation of the electric steering rack, which had previously been repaired by our company. After approximately 28,900 km of mileage since the repair, the unit lost its power, extraneous noises appeared, and the steering feel changed. The customer considered the case to be covered by warranty.

Problem: The owner of a Hyundai i30 encountered a knocking noise in the steering caused by wear on the power steering drive pinion inside the steering column.

Problem: In Opel Astra H vehicles, the electric power steering pump often fails. The cause can be either corrosion or damage to the unit due to careless driving.

Problem: IThe specific placement of the steering rack in many Audi models allows moisture to penetrate the control unit of the electric power steering, causing corrosion of components and failure of the unit.

Problem: Steering rack leakage from under the tie rod dust cover