You just need to find the right main dealer. 30 odd years ago, I had an old Mk1 Fiesta that I had put into an MOT testing garage( they didn't do repairs) the car passed but the tester pointed out that the steering was knocking on full lock and the CV joints were obviously on their way out. So I went to my local Ford dealer and booked it in to have the CV joints replaced. When I went to pick the car up, they told me that the CV joints were just fine and didn't need replacing, they had put it all back together and checked the tracking which was out of alignment, they realigned the tracking and the knocking had stopped, all I was charged for was the realignment.
Another time I had a Mondeo, it was making a squeaking noise that someone suggested might be a bearing as they'd had a similar noise, took it to the same dealer, told them the problem, they sent a mechanic out to look at my car, popped the bonnet open, fumbled around the engine and it made the same squeak, asked if that was the noise, to which I agreed, he went back into the workshop and came back with a can of silicone spray, Sprayed it on a rubber hose and a plastic clip that held it in place and the squeaking stopped. No charge.
Another Ford dealer and another Mondeo, my car was in having some work done, can't remember what, but they had to remove the engine under tray. Whilst under the car the mechanic noticed some of the boost hoses were loose, also some of the screws and clips for the under tray were missing. He tightened up all the boost hoses, some of the jubilee clips were broken so he replaced them, plus not only did he replace the missing screws and clips, but he replaced the rest of the screws and clips too. All free and no extra charge on top of the work the car had gone in for.