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Twingo oil temperature warning light

Need some brainpower here. My 2008 Renault Twingo diesel is throwing a fit. The oil temperature warning light keeps popping up on the speedometer, and when I hooked it up to a reader, it's storing an error related to the engine oil temperature sensor. What's weirder is that the oil pressure warning lamp sometimes flickers too! I'm thinking it might be a dodgy connection somewhere, maybe a frayed cable or a loose plug on the sensor itself. Anyone else seen anything like this?

4 comment(s)

Sounds familiar! Had a similar thing happen on my old Peugeot 207 a few years back. Oil temperature gauge going nuts. Check the wiring and the plug that connects to the sensor itself first. Could just be a bad connection. Give it a wiggle and see if anything changes.

Cheers for the quick reply! When you say 'wiggle', do you mean literally just jiggle the connector a bit to see if the light goes out, or is there a more scientific way to test the connection? I've got a multimeter, but I'm not exactly an electrician...

Yeah, just a gentle wiggle to see if the light flickers or goes off. If wiggling does something, it’s almost certainly the connector or the wiring right there. Given the oil pressure light too, it's worth getting it properly diagnosed. Could be a faulty sensor causing knock-on effects. Best to take it to a workshop, I'd say.

For anyone interested: you were spot on about the connector! Took it to a local garage, and they found a corroded pin in the sensor plug. Cleaned it up, replaced the connector, and the warning light's gone! Cost me 95€, but peace of mind is priceless. Thanks for the help!

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