Hello everyone,

I recently brought a new Mercedes A class and I've noticed that randomly on some journeys the climate control makes the car unbearably hot not matter what temperature is set. For example, the climate control is set to 17c at the beginning of a journey and the car interior is roasting way above 17c about 15+ minutes later. The only way to make the car cooler is to set it to LOW.

Any ideas on what could be causing this issue as it only happens on some journeys?

Thank you in advance