guenterwalter1
Megane hybrid engine overheating
Summary of the thread
A 2022 Renault Megane Hybrid with 52,955 km is experiencing engine overheating, a check engine light, and a coolant spill, suggesting excessive pressure in the cooling system. The issue may be related to a control unit communication error. A similar case was resolved by addressing a defective plug connection in the control module, which was confirmed after a workshop visit.
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4 comment(s)
guenterwalter1 (community.author)
Thanks for your input! I will check it out. By data link connector do you mean the cable or plug connection of the component? I didn't find any issues related to the cable connection to the control module. Did you find a defective cable, or a defective plug connection?
werner_peters1
Yes, it was indeed a defective plug connection. I would suggest visiting a workshop. They'll diagnose the issue properly, but it does sound like a control unit communication error. For me the final repair bill was 95€. Hope that helps!
guenterwalter1 (community.author)
I appreciate your help! I followed your advice and took it to a workshop. It was indeed a defective plug connection as you suspected. They resolved the communication error. Thanks again!
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RENAULT
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MEGANE
werner_peters1
I had something similar with my Megane. Was the diagnostic trouble code pointing towards a CAN bus communication fault? Maybe check the data link connector and the control module connections.