I know this is a long time after you posted regarding 100K maintenance. Here's something I learned the hard way...make sure when the timing belt is replaced that they also replace the THERMOSTADT. Everyone does the belt, waterpump, tensioners and one would think it would be obvious to do the thermostadt at that time but my mechanic didn't do it and less that 2 years later I had to replace thermostadt because the car was overheating. It cost 450.00 mostly labor because it is virtually the same procedure to get to the thermostadt as it is to do the belt.

 

Where are the old days when the thermostat was seated in the radiator opening?... O tempora