Originally Posted by Bigmuz7
I think thats a bit of a brass neck. You are supposed to be paying for his experience, not reward him for failure. If I was the engineer I'd be too embarassed to charge. And I would have protected myself from any dilemma by not attempting to repair something I didnt know enough about to start with. I'd tell him that, and offer something out of good will, incase he might be the only guy with the bolt or washer that saves your next day cruising. His service did not solve your problem. Why do these guys earn a living from not having experience
I think it is worth remembering there are two sides to every story. I am not suggesting that Tim is deliberately misleading us - but we don't know exactly what the engineer was asked to do or exactly what he told tim the next stage should be. For example - there is a big but subtle difference between,
"I have spent two hours looking at and testing your engine, and I can't find a fault, but the symptoms you reported might be a thermostat problem and my next step would be to take that off to test it - but its going to cost you another £40." AND
"The problems with your thermostat".
For example, in the original thread, Tim insisted he had already changed all the fuel filters (which presumably he told the engineer) - but it transpired that there was actually a filter Tim didn't know existed. Similarly it might be reasonable to assume that the main filters should have caught the crap that was causing the problem - but Tim then revealed that he had bypassed them for a short spell. Would the engineers have know this?... if not it may have made a significant difference in where they were looking for the fault.
Bearing in mind that two different engineers tried and failed to diagnose the fault it was perhaps not as simple as is suggested.
If you contracted him to fix it (without an unreasonable restriction on time / parts to do that) then he didn't do as you requested. However if you contracted him to take a "look at it" as suggested in the original thread then he was doing what you asked. Would you have been happier if he spend another 2 hours, actually fixed the problem and charged you £200?