My 1.4 r 25 is about to come up for it's 4 year service next month. The local rover dealer has quoted £307.00. A bit steep I thought, so having a reasonable knowledge of things mechanical etc I intend to take the plunge and DIY. As the car is now four years old it is also due a coolant change which seems to be straight forward. However I have read on this site that the system must be bled correctly. How many bleed points are there and where are they. Is it difficult and is there any problems I should know about.