Although the service manager was extremely polite ...

Although the service manager was extremely polite and accommodating, what was supposed to be a routine thermostat replacement ended up being a 5 hour ordeal. Turns out the mechanic failed to catch a critical cross over pipe that is a part of the thermostat assembly. It had failed as well. A standard collateral possibility. This they had to replace AFTER they had reassembled the whole unit. Which meant they had to take it all apart and reassemble the thermostat with the cross over pipe costing me an extra $175 and an additional 2 hours of waiting. Because of the nature of this common failure in what BMW classifies as a "Known Bad Part" I was forced to go to a Mini dealer and not my normal service place. They would have caught it because they know to look at everything besides the one singular device that had failed (i.e. the thermostat). I would have only been out my $100 deductible out of the $275 total bill.