VW Caddy Oil Warning Light Baffles Despite Normal Oil

Had a similar situation with my 2021 VW T-Cross. As someone with moderate experience working on cars, I first thought it was an engine oil issue, but it turned out the oil monitoring system was giving false readings due to a faulty connection. The oil signal kept triggering out of nowhere even though manual checks showed proper oil levels. After some troubleshooting, my workshop found the sensor issue was actually due to a damaged wire connection to the oil pressure sensor. The connector had developed corrosion and was causing intermittent signal problems. The fix involved cleaning the connector points and replacing a section of the wiring harness that connects to the oil pressure sensor. Total repair cost was 95€, including diagnostic time. The warning lights disappeared completely after the repair. Before suggesting specific fixes, could you share: Current mileage on your Caddy, When was your last oil change, Does the warning appear more frequently during specific conditions (cold starts, turning, acceleration), Have you noticed any unusual engine sounds This information would help determine if your problem matches the wiring issue I experienced or if its something else in the oil monitoring system.

Thanks for the detailed response. My Caddy has 86457km on the clock with the last service completed just two months ago. The car maintenance records show everything was normal during that check. The oil sensor warnings seem unusual and not tied to any specific driving conditions. Sometimes they appear right after starting, other times while cruising. No unusual engine sounds or performance issues noticed. The wiring problem you mentioned sounds similar to my symptoms, especially since the oil detection system shows these warnings despite normal manual oil level checks. I will get the connections checked for corrosion since that appears to be a common cause of oil signal problems.

Thanks for providing those additional details about your Caddy's maintenance history. The symptoms you describe definitely mirror what I experienced with my T-Cross's faulty sensor system. The unusual nature of the warnings, combined with normal oil levels and recent service, strongly suggests an electrical issue rather than an actual oil pressure problem. Since your manual checks confirm proper oil levels, I would focus on the sensor wiring. When my mechanic dug deeper into my T-Cross's issues, they found the connector corrosion had spread further than initially visible. The automotive oil monitoring system is sensitive to even minor connection issues. Based on the mileage you mentioned and similar timing of warnings, I suggest having the entire oil detection circuit checked, not just the visible connectors. In my case, moisture had seeped into the wiring loom over time, causing intermittent sensor failures. The good news is that once properly diagnosed, these car maintenance issues are typically straightforward to fix. My repair ended up being simpler than initially feared, and the system has worked flawlessly since the wiring was replaced. Would recommend documenting when these warnings occur and having a professional check the complete sensor circuit rather than just replacing parts. This approach saved me from unnecessary component replacements.

The suggestions about checking the complete sensor circuit make a lot of sense. My plan is to document all warning occurrences over the next few days, especially noting if there are any patterns in when they appear. This should help pinpoint if the issue is similar to the wiring problem described. Given that my Caddy was serviced recently and shows normal oil levels, focusing on the electrical connections seems like the logical next step. The fact that these sensor issues are appearing out of nowhere without affecting engine performance adds weight to the theory of a wiring or connector problem. Will book the car in next week to have the complete oil detection system checked, particularly the wiring loom and connectors. The repair costs mentioned for similar sensor issues seem reasonable, especially compared to replacing major components unnecessarily. Thanks for sharing the details about the corrosion issues found in your case. This information helps narrow down the likely cause of my car maintenance problem. Will update once I get the proper diagnosis and repair completed.