karlschulz35
Megane cold start issue
Summary of the thread
A 2012 Renault Megane with a gasoline engine experiences rough running during cold starts. The issue could be due to a faulty cold start injector. A similar case was resolved by diagnosing a defective injector, which required replacement and checking the fuel rail. The problem improved after these repairs.
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4 comment(s)
karlschulz35 (community.author)
Indeed, it does improve after a few minutes. Could you please provide more details about your experience with this issue?
emanuelschwarz3
Well, it turned out to be a defective injector. I tried injector cleaning, but it didn't solve the problem. Eventually, I took it to a workshop. They diagnosed a faulty injection valve, replaced the injector, and checked the fuel rail.
karlschulz35 (community.author)
Thank you for the information. I visited my local mechanic. They identified the same issue. The repair cost 515€. I appreciate your help.
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RENAULT
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MEGANE
emanuelschwarz3
Hey, I had similar issues on my Megane. Rough idle and engine misfires when cold. Does it improve after a few minutes?