lennywagner74

Seat Arosa oil level sensor error

My 2004 Seat Arosa with a diesel engine is driving me nuts. I keep getting an "oil level sensor/oil level sensor signal faulty" error. The speedometer shows the error message, it's stored in the error memory, and the oil pressure warning lamp keeps flashing. I've checked the engine oil level itself multiple times, and it's fine. I suspect a defective cable or plug connection, but I'm not sure where to start looking. The car has 149597 km. Has anyone experienced something similar? It's related to the engine oil and its oil monitoring system, but I don’t want to replace the entire oil detection unit if it's just a silly connection. Any ideas before I reluctantly hand it over to the workshop?

A 2004 Seat Arosa owner experienced persistent "oil level sensor/oil level sensor signal faulty" errors, despite the oil level being fine. The issue was suspected to be a defective cable or plug connection rather than a faulty sensor. It was suggested to check the connection at the oil pan, which is prone to grime and vibrations. After a workshop visit, a faulty connection was confirmed and cleaned, resolving the error.

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I had a similar issue with my Arosa some time ago. Same symptoms, same warning lights. It's incredibly annoying. Did you check the connection to the oil level sensor itself? It's a common problem area. Is the sensor original or aftermarket?

You mean the plug right at the oil pan? Is it easy to get to? And how can I tell if the sensor is original? I bought the car used, so I have no idea if it was ever replaced. I just find it hard to believe that the entire sensor is defective with these symptoms.

Yes, the plug on the oil pan. It's exposed to all sorts of grime and vibrations down there. As for the sensor, unless you have paperwork from a previous replacement, it's difficult to say for sure if it's original. Given the age of the car, it's probably the original. Honestly, if cleaning the connection doesn't work, it might be worth getting a professional to take a look before throwing parts at it. Better safe than sorry when it comes to engine oil and automotive oil pressure.

The workshop confirmed a faulty connection. They cleaned it, and the error disappeared. Cost 95€, but finally resolved. Thanks for the help!

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SEAT

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AROSA