The trouble is that the knowledge seems to have gone from fixing cars at least at the dealership level. Some "techs" don't seem to know how to take a car to bits without exact instructions and bulletins from VW. I can understand this when it comes to the electronics, but basic mechanical components and trim for rattles etc seem to have plenty of techs stumped.
Theres a reason they are called techs not mechanics.
It all started going down hill about 25 years ago imo. At the time my family had a main dealerships. Mainly japan stuff like subaru. I use to go in as a teenager and watch the master techs and techs struggle to diagnose faults.
The MD and garage pricipal use to look at me and knew by my facial expressions I know just by the sound what the issue was.
As their techs ran round like blind mice.
A coment that was said then has stuck with me ever since.
They are technitions not mechanics, they dont know how to diagnose or fault find.
They are simply trained monkeys from a book. If its not in the book they haven't got a clue.
Same is true today except the workshop manuals and training manuals are TPS or TSBs and computer scanning tools.
Dont get me wrong you get one or two who have a passion for it and the fault finding skills, mechanical skills, and brains but its getting very rare.
The tails I get told weekly by family that still work in the motortrade what happens at dealerships they work at is just shocking.