Maybe my exspectations are to high,maybe due to the fact that iv spent £20k + I expect things to be correct.
And with that statement I think you've hit the nail right on the head. The build quality and QC is not what it once used to be across all manufacturers regrettably. I'm fortunate to have access to and regularly read a very popular motoring weekly over here in Germany and you'd be surprised how often the home brands get slagged off for reliability problems. On the other side of the pond, you in the UK have tended to be brought up on the once very true statement that 'Made in Germany' automatically reflects quality. Sadly this is not so although unless you are an owner of say a German car, and also say a Volkswagen by way of example, then unless in the trade you've really no access to reliability issues unless you invest a considerable amount of time in researching via the web. Even more disturbing if the press are to be believed is that although there are known issues with certain models and reliably proven from various sources, the manufacturers are often unbelievably arrogant in their refusal to accept that issues even exist.
Returning to the Mazda question. I researched heavily in researching the CX-5 prior to buying and can't tell you how often I revisited my local dealer to take yet another look or to confirm certain things that I had either hear or read. And yes, certain things about the CX-5, especially concerning the quality, of build did greatly disturb me especially when balanced against the asking price. There are numerous quality issues which aren't worth repeating here and which are anyway only my opinion and if the real truth be known, my decision to purchase the CX-5 came down to the fact that essentially there wasn't really anything much better on offer without laying out a considerable amount more in money which for something that lost money heavily on a day by day basis I wasn't prepared to do.
One thing that drives me absolutely mad about the CX-5, and for which I have no definitive answer not having access to the design of the filling pipe/tank, is that I do not have any confidence whatsoever that the filling station pump will cut out automatically when a certain back pressure is detected as is designed to do. More than once I've had a spurt of diesel shoot out of the fill pipe because I've had the pistol full open waiting for it to cut out. Over here it's still legal (not sure about the UK) to be able to set the lock on the filling pistol so that you can walk away and the tank continues to fill. I've used this facility very many times with my earlier Touran and Golf before that, and the pistol has always shut off as designed. I would never consider exercising this option with the CX-5 as the shape of the filling pipe makes this unreliable. On other occasions the pump has cut off but by shifting the angle of the pistol a couple of millimetres or so several more litres can be poured in. Just to be clear - I'm not suggesting that I do, or that one should, fill up to the point that you see the diesel at the head of the pipe although in fact that did happen to me yesterday when the pistol failed to shut off in time. There is no fault with the pistol as the unreliability of the same has happened when using other pistols.
It is surprising how much extra fuel gets pumped in from when a pistol shuts off because I just happened to have inserted it into the fill pipe at the correct angle, to when it doesn't and one ends up with fuel at the top of the filling pipe. My fills are showing a return (from station receipts and automatic pistol cut-offs) of between 7.2 and 7.4 L/100km. When diesel almost shot out of the filling neck yesterday the resultant calculations showed 9.7 L/100km - a considerable difference. I'm now about to go into the garage to conduct a weekly oil check and will be keeping my fingers crossed that the level has not risen any noticeable amount up the dipstick.