A8 Oil Pressure Warning Despite Good Oil Level

Had the same issue with my A6 2011 when the engine oil pressure warning appeared. The problem turned out to be more complex than just a faulty sensor. The oil detection system had multiple failing components, both the sensor itself and damaged wiring connections leading to it. During car maintenance, the mechanic found corroded plug connections near the oil pressure sensor. The wiring harness showed signs of wear, causing intermittent false readings. The repair required replacing both the sensor unit and associated wiring. This was a serious issue since faulty oil pressure readings can lead to engine damage if ignored. Before visiting a shop, you can check: Oil level manually with dipstick, Look for oil leaks under the car, Listen for unusual engine noises, Check if the warning appears more when turning or at specific RPMs The faulty sensor symptoms you describe match what I experienced, unusual warning lights and inconsistent readings despite proper oil levels. While sensor replacement is common, having a thorough diagnostic is important since wiring issues often accompany sensor failures in these systems. A full system diagnosis would be the safest approach given the age and mileage of your vehicle.

Thanks for sharing your experience. Your A6 issue sounds very similar to what Im dealing with. My warnings also seem inconsistent and the automotive oil level checks out fine when I use the dipstick. Good point about the wiring, hadnt considered that could be part of the problem. The engine oil warning does seem to flash more during turns, which matches what you mentioned about intermittent issues. Do you remember roughly how much the repair cost you? And has the oil signal system worked properly since the fix, or have you noticed any other problems?

Thanks for asking about the repair results. After getting it fixed, the oil gauge system has worked flawlessly. The repair bill came to 95 Euro, which covered fixing a faulty cable connection to the oil level sensor. The issue turned out simpler than initially expected, just a damaged plug connection that was causing those inconsistent readings. The car maintenance technician thoroughly tested the oil detection system after the repair, and all warning lights cleared up immediately. The unusual alerts during turns completely stopped. Having a properly functioning engine oil monitoring system again gives great peace of mind. Looking back, those intermittent warnings were definitely nerve-wracking, but the fix was straightforward once diagnosed correctly. If your symptoms match what I experienced, you might be looking at a similar wiring repair rather than a full sensor replacement. The oil pressure monitoring has remained stable for several months now without any false alarms or error messages. No more dashboard warnings appearing during turns or at any other time.

I took the car to a new shop yesterday based on the feedback here. Turns out the sensor issue was indeed very similar, they found a corroded wiring connection causing the faulty oil pressure readings. The mechanic showed me where the wiring had degraded near the sensor mount. Total repair cost was 120 Euro including diagnostics. They replaced the damaged section of wiring and tested the oil detection system thoroughly. All warning lights cleared up right away and no more alerts during turns. Really glad I checked here first, helped me point the new mechanic in the right direction and probably saved some diagnostic time. The car maintenance records will show it was just a wiring repair rather than a complete sensor replacement, which was my initial concern. Engine is running smooth now with no warning lights. Thanks again for sharing your experience, it matched my situation perfectly and helped resolve the issue quickly.