[PG2]

It is because manufacturers are not silly enough to pay for ten hours of labour on a job that takes seven.

Now that the cynical side of me is out...

There is a lot of mucking around with some manufacturers regarding warranty work. There is also not generally one manufacturer that is better than the other. Dealing with warranty claims can vary from month to month, manufacturer to manufacturer.

Sometimes it is not the job that the service department is trying to avoid, it is all of the other administration work that is involved. Get a manufacturer that has decided to clamp down on their warranty claims and the mechanic technician can quickly find themselves having to take 20 photos of the car, including photos showing the general condition of the car, plus a 3 page report outlining what they have done to try and 'fix' the problem.

Even if you get that far with photos and a report, it can sometimes take the manufacturer a couple of days to get back to them with an answer, mind you, that answer can sometimes be 'try this or try that'. The technician knowing that this or that is not going to work has to try it or the manufacturer will not go ahead with the claim.

Also, while all of this is happening it is generally tying up a hoist. Not only is it profit prohibitive to have a car up on the hoist, it can also create a back log of work as that hoist is out of use.

Sorry for the long post, but I hope that helps.