Wife's 1.8 Astra G/Mk4 has had the complete timing belt kit and water pump changed about 20,000 km/2 years ago. But we have noticed an occasional drop of coolant on the drip tray in the garage but haven't been able to see where (or which Astra) it's coming from. While it was in the air during brake replacement recently I noticed there is a very slight leak/seepage at the bottom on the timing belt cover which would probably indicate the water pump or it's gasket is leaking.
My questions: How urgent would it be to get the pump changed? And, would we need to have the timing belt changed again at the same time?
Thanks in advance for any advice anyone can offer . . . . as the Holden "service departments" over here have obviously been trained by your Vauxhall guys. They really have no idea what they are talking about.