MarcelRacer
Problems with the Renault Megane 2021: Engine warning light flashes and car won't start.
(Translated from German)
Summary of the thread
A Renault Megane 2021 owner is experiencing issues with the engine warning light flashing, the engine shutting off, and the car not starting, with an error indicating a possible coding issue. A similar problem in a 2019 model was resolved by repairing the engine control unit, suggesting this could be a potential cause. Without specific fault codes, diagnosing the problem is challenging, but a thorough check by a garage is recommended to identify and resolve the issue, possibly involving a software update or system restart.
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4 comment(s)
MarcelRacer (community.author)
Hey, thanks for your reply. Unfortunately, no specific fault codes were displayed, which makes it even more confusing. My car has only done 39,677 km and the last service was also very recent. However, it claims there is a coding error. I have taken note of your answer, perhaps I really should visit the garage and have the engine control unit checked.
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FritzMeyerFanatic
Hey, no problem, always happy to help. Your situation seems really puzzling, especially since your car hasn't done that many miles yet. I can imagine how frustrating that must be. In my case, the diagnostic unit showed specific codes indicating that the engine control unit was faulty. Without specific fault codes, it is actually more difficult to find the exact source of the problem. It seems like a coding error could be one of the possible causes, but I am not an expert. Maybe your Renault needed a software update or a system restart? I would definitely contact your garage and insist on a thorough diagnosis if you haven't already done so. Hopefully they can fix the problem quickly. Keep us posted on the progress!
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MarcelRacer (community.author)
Hey, thanks for your reply and the tips. I haven't made any real progress yet, but I was planning to contact the garage tomorrow and ask for a thorough diagnosis. It's really annoying that this problem is so mysterious. However, your reply has at least given me another starting point. I will keep you and the others here up to date, perhaps it will help others if they encounter the same problem. Best regards.
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RENAULT
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MEGANE
FritzMeyerFanatic
Hey, I once had a similar problem with my 2019 Renault Megane, it's a different model range but I think it should be similar. I have a bit of experience with cars, I would describe myself as a beginner. So, when I had the problem, I took the car to my garage. They found that the engine control unit was faulty. I had it repaired and it cost me 1000 euros at the time. Since then, the problem has stopped, so I assume it's solved. Could you give me more details about your car? What fault codes have been stored? That would help if I could provide more details.
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