Hello, I have joined this forum recently in desperation because no mechanic, fiat garage or breakdown guy can tell me what is wrong with our Doblo (a problem that we have had for over two years!). It won't start in the mornings when there has been a noticeable change in air temperature (cold night, warm day and vice versa). We have been starting it with break cleaner in the air intake but this has stopped working. It has done 160,000 miles.