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Nissan Qashqai Diesel 2019 - Issues with Pre-Glow Light, Exhaust Smoke, Start Times, Fuel Economy and DPF Regeneration

Hey fellow auto-enthusiasts, I'm dealing with a tricky situation with my Nissan Qashqai Diesel (2019 model). It's been acting funny lately - the pre-glow light is constantly on, there's black smoke spewing out the exhaust when I speed up, cold start times have increased, check engine light is on, and it's even refusing to start sometimes. Also, the fuel economy isn't what it used to be, and I'm having issues with DPF regeneration failure. I'm suspecting there's an issue with the glow plug, but I'm not entirely sure. Has anyone else experienced similar problems? Any idea what could be going wrong here? How did you go about getting it fixed and what was your experience with the workshop? Any advice or insight would be much appreciated!

(Translated from German)

4 comment(s)

Hey there, your suspicion could be spot on! I've some experience with cars and came across a very similar issue on my Renault Koleos Diesel (2017 model). Given Renault and Nissan are partner companies, their vehicles, specifically the diesel engines, share striking similarities. When I was dealing with this issue, I got my mechanic to look at it. He diagnosed it as a dysfunctional glow plug which needed replacement due to wear, just as you suspected. It cost me 560 Euro to get it fixed. The whole process went smoothly and the workshop guys were super helpful. Post-repair, my vehicle has been performing as good as new. Keep in mind, though, that every situation is unique, and other factors such as the environment and driving habits can also play a part in car issues like these. Can you tell me more about your driving habits and maintenance routine? For more precise help, it's crucial to know these details. Cheers!

(Translated from German)

Hey, thanks a ton for your input! I think you might be on the right track. My usual routine is a 30km commute to work daily, mostly on highways. Also, I drive to the countryside occasionally over the weekends. In terms of maintenance, I had my last service done when my ride hit 31396 KM, and I usually keep a strict schedule with the oil changes and overall inspections. I guess it's high time I gave my mechanic a call to double-check on those glow plugs. From your experience, seems like it's not going to be as costly as a major engine job. Thanks for the heads up!

(Translated from German)

No worries! Your driving habits and maintenance routine sound fairly regular, nothing that would generally lead to severe issues. And yeah, although it's still a bit of an expense, it's definitely less grueling than a major engine repair! When you see your mechanic, just make sure to mention all the symptoms your car is showing so they'll have a comprehensive background for the diagnostic, especially the DPF regeneration failure. That's particularly associated with glow plug issues in diesel cars, something I learned the hard way. But hey, on the bright side, my Renault's been running like a champ since I got those glow plugs replaced, no more black smoke or long cold starts, and the fuel economy’s back to normal. Honestly, wish I'd done it sooner! So it's worth getting checked out. Best of luck with it, and keep us posted on how you get on!

(Translated from German)

Hey, you've been super helpful! It's comforting to know I'm not alone in this. I really appreciate the advice. I'll be sure to carefully explain every symptom to the mechanic, including the pesky DPF regeneration failure. Meanwhile, I'm pretty stoked to hear about the improvement in your Renault. Gives me hope! Honestly, I'm now looking forward to getting ahead of this and seeing my beloved Nissan Qashqai run smoothly again without any problems. I will certainly update on how it goes. Thanks again for all the advice, man. You're a legend! Cheers!

(Translated from German)

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