tildamaier1
Clio preheating lamp issue
Summary of the thread
A 2017 Renault Clio diesel is experiencing a preheating lamp issue where the lamp doesn't switch off, and an error is stored, likely indicating a defective glow plug. This issue may also be causing a slight decrease in fuel efficiency. The suggested solution is to have the glow plugs checked and potentially replaced at a workshop, as continuing to drive with a faulty glow plug can affect engine combustion.
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4 comment(s)
tildamaier1 (community.author)
Now that you mention it, there appears to be a slight decrease in fuel efficiency. I had attributed it to weather, but perhaps it is connected. However, I do not notice any rough engine behavior or misfires. Could it be just the glow plug?
hannesscholz4
The symptoms do point to a defective glow plug. I would advise you to have it checked at a workshop. In my case, replacing the glow plugs resolved the issue. Continuing to drive with a faulty glow plug can potentially affect engine combustion.
tildamaier1 (community.author)
Thank you for the information. I will schedule an appointment at the workshop to have the glow plugs replaced. The estimated repair cost is approximately 440€. I appreciate your insight.
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RENAULT
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CLIO
hannesscholz4
I own a Clio as well. Sounds similar to an issue I had. Did you notice any decrease in fuel efficiency or rough engine behaviour at startup, like a misfire? It's like a faulty spark plug in a petrol engine.