ABS Light & Stability Issues Plague Audi Q7 Owners

Had the same issue on a 2011 Audi Q5 2.0T. The ABS warning light triggered multiple electronic control system alerts. The diagnostic scan revealed a faulty lateral acceleration sensor, which directly impacted the traction control and vehicle stability systems. The problem required replacing the complete G85 sensor unit, as individual components cannot be serviced separately. This repair is significant since the sensor cluster controls critical safety systems including ABS functionality and electronic stability control. When the lateral sensor fails, it causes the entire traction control system to enter a failsafe mode. This is a serious safety concern that needs immediate attention, as it affects vehicle handling and stability, especially during emergency maneuvers or adverse conditions. The wheel alignment should also be checked during repair, as sensor issues can sometimes be related to misalignment. The safety warning lights will persist until the control unit is properly replaced and recalibrated using manufacturer-specific diagnostic tools. Based on the symptoms described, this matches exactly what happened in my case. The issue requires professional repair at a qualified service center due to the complex calibration needed after replacement.

Thanks for sharing those details about the sensor repair. My Q7 ended up having the exact same lateral sensor malfunction. The diagnostic scan confirmed it was causing those vehicle stability warnings. A qualified shop fixed it and did recalibrate all electronic control modules. Just wondering, could you share how much you ended up paying for the complete repair? Also, has the system worked flawlessly since the fix or have you noticed any new safety warning lights?

After getting the faulty lateral acceleration sensor replaced at an authorized service center, the electronic stability system has worked perfectly with no warning lights returning. The repair included a full recalibration of the steering angle sensors and all related electronic control modules. The total cost came to 1000 Euro for replacing the affected control unit. While not cheap, proper repair was essential since the system manages critical traction control and stability functions. The investment was worth it for maintaining safe vehicle handling and optimal electronic stability control performance. The traction control system now operates exactly as designed, and the wheel alignment was verified during the service to ensure everything works in harmony. Having a properly functioning stability system is crucial for safety, so I dont regret paying for quality repairs using genuine parts and proper diagnostic tools. It is good to hear your Q7 had the same issue identified and fixed. These sensor clusters are complex but essential components of modern vehicle safety systems.

Thanks everyone for the helpful responses. I took my Q7 to a certified shop last week after reading about similar experiences here. The diagnostic scan confirmed a faulty lateral sensor was triggering the ABS and stability warnings. The repair cost came to 1200 Euro including parts, labor and full system recalibration. They replaced the complete sensor unit and ran extensive tests on the traction control system. The yaw rate sensor and steering angle calibration were also checked during the service. Been driving for a few days now and all warning lights are gone. The vehicle stability feels normal again and the electronic systems are working perfectly. Though expensive, Im relieved to have the safety systems functioning properly. The shop did a great job explaining the repair process and ensuring everything was properly calibrated. Just wanted to close the loop and share my resolution. Great to have guidance from others who dealt with similar sensor issues.