Q3 Power Steering Problem, Warning Signs & Solutions

I had a very similar issue with my 2015 Audi Q5 TDI. As someone with basic experience working on cars, I initially tried diagnosing the steering system problems myself but quickly realized it needed professional attention. The symptoms you describe, especially the heavy steering wheel shake and increased steering effort, match what I experienced. My power steering was also showing error codes. After inspection, it turned out the main issue was a faulty cable connection to the power steering control unit. The repair was relatively straightforward. The workshop found and replaced the damaged wiring connection, which had caused the power steering system to malfunction. Total cost was 95 Euro and the car was ready within a day. The steering wheel returned to normal operation, and the error codes cleared up completely. Before suggesting more specific solutions, could you share: Have you noticed any power steering fluid leaks? Does the steering wheel shake more at certain speeds? When did you last have a wheel alignment done? Are there any unusual noises when turning the steering wheel? These details would help determine if your issue is similar to what I experienced or if it might be related to other steering rack components that need attention.

My car has only 5105 KM since the latest service, and Im still experiencing issues. After checking the hydraulic fluid levels as suggested, I noticed small drops under the car. The electric steering seems to make grinding noises when turning at low speeds. The steering pump might need replacement since the noise gets worse during full steering lock. The steering column feels loose, especially when turning left. The repair costs mentioned sound reasonable, but I worry the issue might be more severe in my case given the symptoms. These warning signs started appearing suddenly last week. Will monitor the fluid levels closely and check for additional leaks. Has anyone dealt with complete steering system failure? Want to prevent that if possible.

Thanks for the update. Having gone through similar issues, those symptoms point to something potentially more serious than just the wiring connection I had initially. The grinding noise during low-speed turns, combined with fluid leaks and a loose steering column, suggests problems with multiple steering system components. When my steering pump started making similar noises, the complete replacement became inevitable within weeks. In your case, the pressure hose connection to the steering pump might have failed, causing the fluid leak. However, the grinding noise and loose steering column indicate the steering rack might also be compromised. This matches what my mechanic explained about how one failing component often leads to cascade failures in the steering system. The wheel alignment should also be checked once repairs are complete, as a failing steering system can cause uneven tire wear. Based on my experience, I recommend getting it checked immediately rather than waiting. My repair costs ended up being higher (around 850 Euro) because I waited too long after the initial symptoms appeared. The total repair included: New steering pump, Pressure hose replacement, Steering rack overhaul, System flush and refill The grinding noise particularly concerns me as that was the final warning sign before my steering system failed completely during a turn. Would you mind sharing if the grinding noise changes pitch with engine speed or only with steering movement?

The grinding noise only changes when turning the steering wheel, regardless of engine speed. After reading about the cascade failures, I realize I should get this fixed soon. The fluid leak has gotten slightly worse over the past few days, leaving larger spots on my garage floor. What worries me most is the loose feeling in the steering column. I can feel significant play when turning left, much more than when turning right. Based on the repair costs shared, I should budget around 1000 Euro for the worst case if both the steering rack and pump need replacement. I will schedule a workshop appointment for next week. The symptoms match what others describe before complete steering system failure, and I cannot risk losing control while driving. Good point about the wheel alignment too, my tires are showing some uneven wear patterns already. Will start collecting repair quotes and hope the steering rack only needs an overhaul rather than full replacement. The electric steering assistance seems to work intermittently now, which definitely confirms something is seriously wrong with the system.