Skoda Superb Diesel rough engine running

I had a similar issue with my Superb. Rough running and the engine light. Have you checked the injector values with onboard diagnostics? It could be related to injector drift. I would check that first.

Thanks for the quick reply. Can you elaborate on how you identified the injector drift? Was a reset procedure required afterwards?

Yes, the onboard diagnostics showed one injector with values outside the normal range. It pointed to an injector issue. After replacing the injector, a reset procedure via onboard diagnostics was necessary to clear the error and recalibrate the drift compensation. Replacing the injector solved the issue. A performance tuning is not required in this case, a system reset of the injector values should do it. You should visit a workshop.

I visited a workshop, and it turned out to be a defective injector. After replacing it, including the reset quantity drift compensation, the issue is now resolved. Total cost was 515€.