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Renault Talisman Diesel displays preheating lamp and DPF regeneration error

Hey guys, on my 2017 Renault Talisman Diesel, which already has around 96k kilometers behind it, the preheating lamp has recently been lit permanently and when accelerating it smokes black from the exhaust. In addition, the starter motor takes longer to start when cold, sometimes doesn't start at all and fuel consumption is also high. I found 'DPF regeneration error' in the fault memory. To add to all this misery, the check engine light is also on. I suspect that there is a fault with a glow plug. Perhaps one of you has been through this before and would like to share your experience with me? I'm particularly interested in how it went with your mechanic, as my last experience was quite unpleasant. Many thanks in advance!

(Translated from German)

4 comment(s)

Hey, I had a similar problem with my 2015 Renault Mégane Diesel. A glow plug was broken due to wear, similar symptoms: preheating light came on and black smoke when accelerating. Cold starting was also difficult and fuel consumption increased. Mechanic also found 'DPF regeneration error' during fault readout. It definitely seems to be a glow plug problem. It was a serious thing, not a small thing. I had the feeling that the whole engine would soon give up the ghost. But the workshop handled it pretty smoothly. The defective glow plug was replaced and the DPF was cleaned. It took a few hours, but after that the car ran perfectly. No more black smoke, no more starting problems and consumption was back to normal. Conclusion: You are probably right in suspecting that a glow plug is defective. Don't worry too much, because it can be repaired. But don't delay too long, as this can lead to further problems in the long run. So, take it to the workshop! Hope this helps you. Have a safe journey!

(Translated from German)

Hey, thanks for your quick reply, really helpful! Can you remember roughly what you left at the mechanic? And have you had any problems since then? Best regards!

(Translated from German)

Hey, of course I remember! The repair of the defective glow plug, which was broken due to wear, cost me a total of €560. That's not exactly cheap, but the car is now running like clockwork again. There have been no more problems since the visit to the mechanic and the glow plug fault has also been successfully rectified. Hope that reassures you a little! Let me know if you have any further questions. Greetings back!

(Translated from German)

Thanks a lot, buddy! Really helps me a lot. So a visit to the mechanic is probably due. 560 € is a lot of money, but if the car runs properly again afterwards, then it's worth it. Thanks again and stay healthy! Best regards!

(Translated from German)

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