I had this with a bga water pump on an audi a6 allroad v6 tdi. Snapped all the camshafts, £400 each off audi. Total bill was £2700 if I remember rightly. Supplied through andrew pages. All off them dragged there feet all the way.
Eventually got the money but having to pay up front to get the car fixed contributed to me going bankrupt about 6 weeks later. Will never touch anything from bga again.