benjaminklein10
Seat Arosa oil pressure warning light
Summary of the thread
A Seat Arosa owner experienced an oil pressure warning light, suspecting oil contamination due to exceeding the maintenance interval. The oil appeared dark, indicating breakdown and reduced lubrication. A faulty PCV valve was suggested as a possible cause of crankcase pressure and contamination. The issue was confirmed by a workshop, which performed an oil change and replaced the filter to prevent potential engine damage.
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4 comment(s)
benjaminklein10 (community.author)
The oil appears dark, almost black. I have not noticed any oil leak on the ground where I park. What does the PCV valve have to do with this?
charleslang2
Dark oil indicates breakdown and reduced lubrication. The PCV valve, if faulty, can cause crankcase pressure, leading to oil contamination. Given the symptoms, I'd recommend a workshop visit to prevent potential engine damage.
benjaminklein10 (community.author)
I appreciate the insights. The workshop confirmed oil contamination because the maintenance interval was exceeded. An oil change and new filter cost 165€. Hopefully no engine damage occurred.
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SEAT
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AROSA
charleslang2
Oil contamination can manifest in several ways. What does the oil color look like? Are you losing oil, indicating a possible oil leak? Excessive oil additives might also skew results. Have you checked the PCV valve?