this is my first posting and it isnt the greatest news. My Gsi has just come up to 4 years and was ready for cambelt/water pump change. Family member at Vauxhall dealer sorted out a price of £140.00 all in.
Took car down to south coast for holiday and whilst stuck in traffic heard a horrible noise (water pump knackered) lost 1 day while finding a garage to do the work at a cost of £250.00. Then to top it all off on last day of holiday found that the top pipe on the header tank had snapped and was blowing out steaming hot coolant ( three blistered fingers for me !). Then spent last day taking the car to have the new header tank fitted.
The only good news was that the car didnt miss a beat covering all 270 miles home.
So the moral of this story is dont let more than 4years lapse for the water pump swap and do proper checks before setting off on holiday!