I had a very annoying rattle from the front of my 840. I dropped it off at Phil's asking him to just figure out what it was suspecting a ball joint etc. He looked all around it and eventually found that the calipers were loose (my fault!). I picked up the car and seemingly there was no charge for this despite him having to put it up on a ramp and look around it for quite some time i imagine.
I use Phil for major work on the car and have always been very happy and thoroughly recommend him as competent, honest and a nice guy on top of that!