If your Audi Q5 II’s ABS light is stuck on, a faulty wheel speed sensor is the usual suspect. Here’s what to check first and whether you can keep driving.
Why your Audi Q5's ABS light is on
When the ABS warning light stays illuminated on your Audi Q5 II, it's the car's way of telling you that the anti-lock braking system has detected a fault and has switched itself off. In most cases, a wheel speed sensor is to blame. These sensors monitor how fast each wheel is turning and send that data to the ABS control module. If one sensor fails or sends an erratic signal, the module can't do its job, so it triggers the warning light. Other common causes include damaged wiring to the sensor, a cracked or rusty reluctor ring (the toothed ring on the axle), or less often, a fault inside the ABS control module itself.
