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Megane Coolant Issue

Help! My 2017 Renault Megane diesel has a coolant issue. The check engine light is on, and the error memory says it's likely a defective cable or plug connection. I keep having to top up the coolant. Any ideas?

A 2017 Renault Megane diesel is experiencing a coolant issue, with the check engine light on and an error indicating a possible defective cable or plug connection. The owner frequently needs to top up the coolant. The problem was resolved by checking and fixing a loose cable connection, which cost 95€.

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4 comment(s)

I had a similar coolant issue with my Megane. Check the cooling fan and radiator cap first. Also, make sure there aren't any air pockets in the system. Have you noticed any engine overheating?

Overheating no, but where exactly should I be looking on the cooling fan and radiator cap? Is there anything specific that fails?

I couldn't see the leak myself. I'd suggest taking it to a workshop. In my case, they found a loose connection, fixed it, and the whole thing cost about 95€.

Thanks! I'll check the connections and then take it to the workshop. It was indeed the cable! They charged me 95€ and now it is running fine.

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RENAULT

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MEGANE