Hey, I had a pretty similar problem with my Skoda Octavia Diesel (2019 model year). It wasn't quite fit either, black smoke from the exhaust and the engine warning light was also on. In my case, the cause was actually a defective lambda sensor, which led to all the problems. I had it checked at my garage. The guys there replaced the defective lambda sensor, which cost me a total of 375.0 euros. Since then, the car has been running perfectly again. Have you ever had the fault memory read out or an exact fault code? That could provide more information. Give me a few more details about your vehicle, then I might be able to give you more specific tips. Best regards!

(Translated from German)

Hey, my Kodiaq has done 109876 km and the last service was three months ago. I haven't had the fault memory read out yet, but I'll definitely have that done soon. Thanks for the tip about the lambda sensor, I'll have that checked too and let you know as soon as I have more information. Best regards!

(Translated from German)

Hey, thanks for the additional info. If your Kodiaq already has almost 110,000 km on the clock and the service was only three months ago, it could well be that the lambda sensor or another part of the exhaust gas aftertreatment system is actually the problem. Sometimes clogged diesel particulate filters (DPF) or defective EGR valves can also cause similar symptoms. As I said, I had a similar problem with my Octavia, and in my case it was the lambda sensor. But a friend of mine, who also drives a Kodiaq Diesel, once had to have the DPF replaced, especially because it was quite clogged. You can also address this specifically in the workshop. If it turns out that it's not the lambda sensor, it might also make sense to check the EGR valve and the DPF. In the worst case, a leaking exhaust pipe could also cause the black smoke and the strong odor. I would advise you to have the fault memory read out as soon as possible, as the fault codes will help you and the workshop to find the problem more quickly and accurately. Let me know when you have more information or if you have any other questions. Best wishes and good luck!

(Translated from German)

Hey, thanks for the detailed tips! I will definitely have the fault memory read out as soon as possible and contact the workshop specifically about the lambda sensor, the DPF and the EGR valve. Then I hope that the guys there can find the problem quickly. I'll let you know when I know more or if any other questions arise. Best regards and thanks again for the help!

(Translated from German)