For some time now the clutch on my 2005 330ci has given a squeal when i start it from cold. That is if I start it up in the morning the engine fires and at the same time or just after there's a short squeal, regardless of whether I'm depressing the clutch pedal or not. Using the clutch to get out of the garage also results in squeals, but after maybe ten seconds or so the squealing has stopped. It appears again if the car is left standing for more than about 8 hours, so I'm assuming it must be temperature related. I can't imagine it's the release bearing because the car has done only about 20k miles.
Has anyone an idea what this could be?
stuart