In my daughter’s driveway with my foot on the brake, my vehicle suddenly accelerated forward without warning. I immediately pressed the brake pedal firmly and kept my foot on the brake, but the vehicle continued moving forward and would not stop. The vehicle crossed the street and entered the neighbor’s lawn heading towards a large tree. I managed to steer away from the tree and the neighboring house and return to the street. The vehicle then continued through a stop sign. I made a left to avoid another house and continued traveling one tenth of a mile before the vehicle finally came to a stop. Throughout the incident, my foot remained pressed on the brake pedal. Steering was very difficult. The engine did not sound as though it was revving loudly. The vehicle left deep marks in the grass, but I did not observe skid marks on the street. My initial report to AUDI I stated the vehicle was going 15-20 MPH however; I did a test with another vehicle and determined it was more like 25-30 MPH
Audi Q5 power steering loss problems
27 of the 1,359 owner complaints about the Audi Q5 describe loss of power steering, most of them for the 2018 model year.
- owner complaints
- 27
- worst model year
- 2018
- typical mileage
- 47,500
By model year
Often reported together
Loss of power 7Sudden acceleration 1Won't shift 1Steering lock-up 1Stalling 1Overheating 1Oil consumption 1
What owners say
Multiple electrical failures that control numerous safety systems, such as airbags, Collision avoidance, speed control, etc. Airbags will not activate in a collision. Vehicle will shut off at highway speeds, resulting in loss of steering control. The vehicle has been inspected by an Audi dealer. Multiple warnings on dash came on when the issue occurred.
Incident Description: While accelerating from a red light during rush hour, the vehicle suffered a sudden, catastrophic loss of steering control. The steering wheel locked completely and could not be turned. Simultaneous loud, long beeping and dashboard warnings appeared, stating: "Steering malfunction stop the vehicle immediately." The vehicle was immobilized in the middle of a highly congested, complex 5x5 intersection. Local police had to shut down traffic until the vehicle could be cleared. Safety Risk: Stalling abruptly in a major intersection during rush hour created an immediate risk of a multi-car rear-end pile-up. This jeopardized the safety of the driver and multiple children who were inside the vehicle, who faced a severe personal injury risk whether they remained trapped in the active roadway or attempted to exit. Diagnosis, Cost, and Recall Context: The vehicle was towed to an authorized dealership. Diagnosis revealed significant water intrusion inside the steering wheel wiring harness. Draining the water cleared the error and the vehicle become operational, but the dealership quoted $6,000 in repairs to replace the steering components completely out-of-pocket cost. Please note it appears the $6,000 quote will be out-of-pocket for catastrophic safety defects although they may be known issues for the same make and model years: Prior Gateway Recall: This vehicle’s VIN was previously impacted by the Gateway module recall (where water intrusion triggers a limp mode). That recall was redeemed prior to this event, and my understanding the repair should have prevented moisture intrusion. There seems to be a history on this make and model for known moisture intrusion causes critical issues. U45 Warranty Exclusion: The manufacturer issued a warranty extension for this exact steering failure on this same make and model years. However, this specific VIN was excluded from coverage, despite it being within the parameters.
Driving on May 20, 2026 near my home in Florida, power steering assist failed suddenly making it very difficult to steer. Red light on dashboard lit up indicating steering failure. According to a search of the federal safety agency records, this is a known issue with these cars. (the federal safety agency Campaign 15V452000, Audi Action Code 48M1. If I had been on a highway or busy street, the sudden failure would have likely caused an accident. The car was towed to Windemere Automotive in Naples, Florida. The steering rack was defective and replaced, at a cost of $4700. Letter written to Audi of America, INC about this incident. I received no response. This event occurred with no warning, an no previous hint of a steering problem.
I wrote Audi to request escalation of an unresolved issue involving my 2018 Audi Q5, related to Safety Recall 90S9 (the federal safety agency Campaign 21V947000) for the gateway control module. Summary of the issue: My vehicle recently experienced a complete gateway control module failure due to water intrusion. I lost steering and brake assist warnings while driving, and the vehicle would not restart after being pulled over safely. It was towed first to the nearest Audi mechanic who diagnosed the issue as Recall 90S9. We then contacted Audi Memphis for inspection by them since it was a recall issues and paid a 2nd towing charge. Audi Memphis (owned by Gossett Motor Cars) said they could not do anything until they looked at the car. I have since obtained a copy of the original repair order from when Recall 90S9 was performed on my vehicle. The vehicle at the time of recall repair was owned by my Mother. The recall requires two remedies: (1) installation of a protective cover over the gateway control module, and (2) sealing of an underbody seam on vehicles produced before September 2021. The repair order shows a technician comment reading "INSF" next to the seam sealant line item, which indicates the sealant application was noted as insufficient at the time of the original recall service. Despite this documentation, and despite towing my vehicle in specifically for a 2nd inspection, Audi Memphis has stated they have no findings and no liability for the current failure. Given that: • My vehicle is included in the affected range for Recall 90S9, • The original repair order appears to document an incomplete or insufficient sealant application, and • Audi's own 90S9 technical bulletin states that damages resulting from improper repair or failure to follow the work instructions are the dealer's responsibility, I am requesting that this case be escalated for review. The current gateway control module repair be repaired at no cost to me. I currently have no working vehicle.
Title - Sudden Loss of Steering Control While Driving – 2018 Audi Q5 (Aug 2024) While driving my 2018 Audi Q5 at normal road speeds, the vehicle experienced a sudden and complete loss of power steering assist. A dashboard alert stating “Power Steering Malfunction” appeared simultaneously with an immediate and severe increase in steering effort, making the steering wheel extremely difficult to turn and effectively resulting in a loss of steering control. This incident occurred on a public roadway while I was transporting my family, including two young children (ages [XXX] and [XXX] ). The uncommanded loss of steering assist created an immediate and serious safety hazard and could have resulted in a crash, serious injuries, or fatalities to vehicle occupants and others on the road. I was able to bring the vehicle to a stop and subsequently to the dealership, only with significant effort and risk. There were no prior warning lamps, noises, reduced steering assist, or other symptoms before the failure. The malfunction was abrupt and occurred without any advance indication. The vehicle had approximately 39,000 miles at the time, which is well below what would reasonably be expected for a power steering rack failure. The vehicle was not modified or abused and was driven under normal conditions. Audi dealership confirmed failure of the electric power steering system and diagnosed the issue as a power steering rack failure requiring full replacement. The repair was completed only after the vehicle became unsafe to operate. The removed component may be available through the servicing dealer or Audi of America for inspection upon request, and I have retained all repair documentation. Audi of America was notified of this incident after the repair but declined responsibility. Based on subsequent research, I am aware of multiple similar reports involving Audi Q5 power steering failures. I am submitting to assist the federal safety agency in determining whether this issue poses a broader risk. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF I
The front subframe has experienced catastrophic failure due to severe and premature rust-through corrosion. Multiple holes have perforated the component, compromising the vehicle's structural integrity. The part is available for inspection upon request. The safety of my family and others was put at significant risk, as the subframe is the primary component that mounts the engine, suspension, and steering rack to the vehicle. A failure of the subframe while driving could cause a complete loss of steering control and the collapse of the front suspension, leading to a serious or fatal crash. The problem was independently reproduced and confirmed by both an independent service center and an authorized Audi dealership. Both establishments have deemed the vehicle unsafe to drive due to this specific issue. The manufacturer (Audi of America) has been made aware of the issue through their dealership network. They have acknowledged the defect by offering a "goodwill" repair to replace the subframe, confirming their awareness of this failure mode. However, the manufacturer has made this safety-critical repair contingent on the owner first paying for several thousand dollars of unrelated maintenance items, creating a financial barrier that prevents the safety fix from being implemented. There were no warning lamps, messages, or other symptoms prior to the failure's discovery. This is a silent failure that provides no warning to the driver. It was only discovered during a routine service visit when the vehicle was on a lift.
Vehicle: 2015 Audi Q5 2.0T VIN: [XXX] At around 70,000 miles, my vehicle began consuming engine oil abnormally. I received a low-oil warning and had to add 1 quart every 1,000 miles. I first approached an authorized Audi dealer at 75,000 miles, who inspected the vehicle and stated this was “normal for older vehicles” and found no issues. However, the problem worsened rapidly. By 79,000 miles, I visited a second Audi dealer who acknowledged that this was a common problem in this engine type. They quoted me $16,000–$20,000 for a full engine replacement, stating they could not replace pistons alone. At 80,000 miles, my car now consumes 1 quart of oil every 200 miles. The oil warning light comes on frequently. I am forced to carry oil and top off multiple times per week. This is not normal wear for a luxury vehicle with regular maintenance. This condition creates multiple safety risks: •Sudden engine seizure or power loss if oil runs too low, especially while driving at highway speeds. •Loss of steering/brake assist due to oil pressure failure. •Increased fire risk from leaks or overheating. •Frequent roadside stops to add oil, risking exposure to traffic. •Distraction while driving due to monitoring oil levels. •Environmental hazard from oil spills. The engine remains available for inspection. The vehicle has only been inspected by Audi dealerships. Audi should be held accountable for a defect that compromises safety and reliability at relatively low mileage. I urge the federal safety agency to investigate and take appropriate action. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
It has been very cold here in the North East. Under freezing for more than a month. My door lock sensors stopped working about 4-5 weeks ago. Two days ago I was driving and the power steering stopped working. Then after about 2 days it began working again. Just as the temps went above freezing. And the door lock sensors started working again. I had noticed over the last month or so that papers I had behind the front seat when I went to retrieve them were very wet, soaked. I took my car to my mechanic today and he told me that the computer is under the front seat. And water in this area may be causing the failure of the power steering and the door locks. So he said I should report it to you and you could possibly help.
While driving, the steering wheel suddenly locked up and could not be turned. Several warning lights simultaneously appeared on the dashboard including: "Steering malfunction! Please stop vehicle", "Audi adaptive light malfunction! See owners manual", "Start/stop system malfunction! Function unavailable", and "Audi pre sense currently limited" - No warning lights were present prior to this event. The sudden loss of steering could have caused serious injury to myself and to other drivers or pedestrians nearby. I was thankfully able to stop the vehicle, but I could not pull over because the steering wheel could not be turned. The car was towed to the Audi dealership and I was told the "Electronic power steering rack" would need to be replaced costing nearly $5,000.00.
Related recalls
No recalls on record for this model year.
Questions about the Audi Q5 power steering loss
Which Audi Q5 years have loss of power steering problems?
The model years with the most reports are 2018 (6 complaints), 2019 (5 complaints) and 2014 (4 complaints).
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