Yep and I think the day of the DIY mechanic is coming to an end, today's cars with all there computers and eletrical gear need specialist test gear to do tests or adjustments and this gear isn't cheap, when I was working in a garage they spent about £20 - £30k on this type of equipment, this has to be paid for, thus labour costs, I will very rarely look at someones car if there is a problem, as its now likely to be a faulty sensor, adjustment or ECU problem which I don't have the gear for.  Even doing jobs like replacing brakes and exhausts you have to be very careful because of all the sensors hanging around, just not worth it, take it to the professionals.