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MaxWeberFan

Arkana Coolant Level Low

I'm having coolant issues with my 2021 Renault Arkana hybrid. The level seems consistently low, triggering the check engine light. The error memory indicates a fault, and the car has 45713 km. I've checked around the coolant reservoir and radiator cap, but found nothing obvious. Could it be a defective sensor?

Summary of the thread

The 2021 Renault Arkana hybrid is experiencing consistently low coolant levels, triggering the check engine light. Despite checking the coolant reservoir and radiator cap, no obvious issues were found. The problem was suspected to be a defective sensor, but further inspection revealed a defective plug connection, which was confirmed and repaired at a workshop.

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4 comment(s)

aaron_schwarz8

That's frustrating. My old Megane had a similar problem. I kept topping up the radiator fluid, but the light would always come back. Did you inspect the radiator hoses themselves? Sometimes they develop small cracks that are hard to spot, especially when the engine is cold. Is the engine overheating at all?

MaxWeberFan (community.author)

Thanks, I haven't noticed any engine overheating. I visually inspected the radiator hoses, but perhaps not thoroughly enough. Where exactly on the hoses should I focus?

aaron_schwarz8

On my Megane, the cracks were near the hose clamps. But honestly, given it's a hybrid, and you're getting an error code, it might be more complex than a simple hose. I'd suggest getting it checked at a workshop before it causes a bigger problem.

MaxWeberFan (community.author)

Understood, thanks. I took it to a workshop, and you were correct. It was a defective plug connection, as indicated by the error memory. The repair cost 95€.

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RENAULT

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ARKANA