My stilo's heating is blowing out cold air on the left side very well but the right side is warm but not blowing out very strong. I don't know anything about this part of the car but willing to give it a go if someone can give me some advice. I've had a look on this forum and can't see anybody with the same problem. Thanks in advance from my cold wife ha ha

Does it have climate control or just the manual heating control knobs?

I think its climate control. I have two knobs on each side for setting the temperature on each side

Yup, thats climate control. 4 motors control air flow and mix. They have little plastic shafts that can snap and therefore don't move the flaps anymore. Reason they snap is usually because they are forced past their limits. The reason for that is often dirty potentiometers that feed the flap position back to the control unit so the control unit doesn't realise the flap is at the end of its travel and continues trying to turn it.

Theres a few threads on this, search for 'climate control' in the stilo section.

Hope that helps.

Thanks for your help, ill search it