Brake fluid service is needed the first time after 3 years. Then every 2 years. This means sucking out the master cilinder reservoir, refill it under pressure, and then bleed all 4 brake calipers, including the oil going to the clutch, if you have a manual gearbox.
Aircon service is disputable. Pollenfilter is changed every xxx km or xxx years in time on normal service.
After a couple of years it might be worth to check the gas level, because all the sealings from the hoses may start to dry out and leak invisibly. So you might loose 200 grams (over 1kg of gas in a triple zone airco system), and then it is advisable to refill with gas. Then you should only have to pay for the work and 200 grams of gas, because they recover all the remaining gas and put it back in together with the missing amount, and a bit of oil with fluor tracing fluid to check for leaks.