I've had similar numerous problems with my Shogun which I bought brand new and is not 3yrs old until Sept this year. I've had 4 sets of wheels (and the paint's coming off again), 3 alarms, the brake discs have warped 3 times and have now been replaced, the radio LCD is now blanking out so needs replacing, 2 sun-roof motors, can't/don't want to remember any more as it depresses me.
I've received a decent service from the dealer but I must admit, I won't be keeping it when the 3yr warranty is up and won't be buying another one. I couldn't afford to put right all the crap. I think it's just the luck of the draw. You either get a good one or a Friday afternoon one.
You & me have got the latter obviously.
How old is your car and how long ago did you buy it, and with what warranty given by the dealer? I'm sure they must just become immune to customers ranting & raving. Mind you the service manager at my Mitsubishi dealers has changed 3 times in the few years I have been going there.
I know this won't help you, but I feel a lot better now knowing someone else wastes as much time as me taking the car in and out of the garage.
FOR SALE : LWB shogun, still under warranty. One careful lady owner, lots of new bits!

