Took my car in for its P1 service + MOT today at a main dealer. All fine on the drive there. Go to pick the car up, they say that it passed with flying colours, no problems, but as I pull away, straight away the car feels shite and I notice the engine warning light is on, and the traction control warning light. So I turn straight back round and back to the garage. They run a diagnostic and say the throttle body has gone. Also, while the mechanic is running the test, he says, it might be the throttle body, I've had one go like this before...
They say they haven't done anything that could have caused this and it's just a coincidence that it's gone. But that doesn't ring true. Apparently there's not much to go wrong with a throttle body, so is it likely that they've had more than one go during a service? And that they could predict that's what the problem would be without even driving the car themselves? I don't know much about the mechanics of a car, so have no idea, just feels like a massive coincidence that it went during the service, they didn't notice anything and it wasn't spotted until I go to drive away.
I've got to go back later to talk to the manager, but am assuming that he's just going to say tough, it's not our fault, it's just coincidently gone. Anyone have any advice on this (apart from take it somewhere like abbey next time!), is it likely to just be a coincidence, i.e. they go after a certain time or is there something I should be suspicious about, e.g. ragging the crap out of the car to hear the K1.