Noise when heating is on
I've got a strange problem, once I turn the heating on and it gets warm in the car I start to hear noise from passenger airbag area every time road is not perfectly smooth (even on the smallest bumps). It is connected not with the heater itself (cause it happens with heater turned off) but with the warmth - like something in there grates against something else but only when the temperature is high enough.
Car is 2005 ONE, any ideas? thanks