XC60 hybrid engine smoke and power loss

Hey there! Those symptoms definitely point towards a crankcase ventilation issue, especially the smoke and reduced power. A malfunctioning PCV valve can indeed cause those problems. It messes with the air/fuel mixture and can lead to increased pressure in the crankcase, forcing oil past seals, hence the smoke. Has your fuel economy also taken a hit? Also, can you describe the smoke color? Is it blueish or more black/grey?

Thanks for the quick response! Yes, the fuel economy has decreased a bit. The smoke is more of a bluish color. If it is the crankcase ventilation valve, is it something I could fix myself, or does it require specialized tools and knowledge? I'm reasonably handy with cars, but I don't want to make things worse.

Okay, bluish smoke definitely indicates oil burning, reinforcing the PCV valve suspicion. While a reasonably handy user could theoretically replace the PCV valve, on a modern Volvo, it's often integrated into the intake manifold or valve cover, making access tricky. Plus, you'll need to properly diagnose it to be 100% sure. I'd strongly recommend taking it to a reputable workshop. A faulty crankcase ventilation can cause increased emissions and further damage in the long run. I wouldn't risk it.

Thanks a lot for the advice! I'll book it in with a local Volvo specialist. They've quoted me around 360€ for the repair, which seems reasonable. I appreciate your help in narrowing down the issue and preventing me from potentially causing more damage!