Nemo rough running when cold

I had similar issues with my Nemo, although it's not a 2014. Does it take ages to warm up? I had a dodgy blower motor and that messed with everything. Check that before ripping the heater out.

Thanks for the tip! You mean the blower motor for the cabin heating? How did you diagnose that? Was it throwing codes too?

Yep, the cabin blower motor. It wasn't throwing codes, but it was making a weird noise, and the heating was all over the place. I took it to a shop, and they confirmed it was affecting the auxiliary heater. Get it checked out properly!

I took it to a local mechanic, and it turned out to be the PTC heater. They quoted 350€ for the heater repair.