Peugeot 208 rough running when cold

Sounds familiar. I've got a 208 too. Same symptoms, though my mileage is lower. Was it throwing any specific fault codes related to the blower motor or HVAC system?

Yeah, error points to the electric auxiliary heater. Have you had the same?

Yep, auxiliary heater was the culprit. Probably the heating element's gone bad. I'd suggest getting it checked at the shop.

OK, thanks! Will do. They quoted around 350€, will get it repaired.