Skoda Superb Hybrid Engine Power Loss

Reduced engine power and an error code? Sounds like my old Opel. Before replacing parts, check the battery voltage and ground connections. Simple things can cause electrical issues.

Battery and grounds seem fine, but what do you mean by 'main relay'? Where is it located, and how did you figure it out on your Opel? Can a novice check it without damaging the vehicle electronics?

The 'main relay' is a switch powering the engine control. On my Opel, it was in the engine compartment fuse box. A mechanic friend suggested it after diagnostics. Unless you know vehicle electronics and have the tools, let a professional handle it. Messing with the engine control can be costly.

You were totally right! Shop confirmed it was the main relay messing with the engine control unit. Replaced it, cleared the error, and it runs great. Cost 120€. Thanks for the help!