Couldn't argue with any of the last three posts.

In additition to most main dealers insisting on fitting expensive parts rather than making more cost effective repairs, some attention should be paid to manufacturers practices.

In the last few days I have diagnosed a fault on a vehicle just out of 3 year warranty. The faulty £90 part is not availble until 20th Feb, a reconditioned parent part(including the required part)is available tomorrow for £530.
The very well known manufacturer of the part(not the vehicle)cannot supply at all.

I put myself out a bit and pressed local dealer to search other dealers for stock, three had stock, one of which was only 40 miles away. Result was a quick fix due to my efforts, not those of the vehicle or part manufacturer.
This part is a common failure, just a design variant that is not yet available to aftermarket.
The vehicle was a commercial and would not run without the part.

I often wonder if people would buy these products if they knew how poor later support could be.