Thanks for your answer! Well, here in southern Germany it's still winter and the temperature is about 40°F (5°C) or colder, so the fact that the jet heating comes on doesn't appear to be unnormal. In fact it seems to be the smell of plastic. Maybe I should wait until there really happens something to the jet/heating assembly and then change it with a new one... :-) -- Leo 1976 E3 2500 1986 E23 745iA