Did a brake fluid flush on the GTI. VW calls for replacement after 3 years and every 2 years after which is what I would do anyways going forward. DSG service is next up at 60K (will do around 50K) and all around brake job.
While flipping through VW maintenance schedule I noticed air filter (engine) should be replaced after 6 years (regardless KM). I find this really odd....
![Thinker :think:](https://www.autos.ca/forum/Smileys/CarTalk/thinker.gif)
I replace the air filters (engine and cabin) every year or year and a half the most and they look relatively dirty by then. I would not wait 6 years to replace the engine filter in any case.
Another relatively strange thing is that VW requires to replace the spark plugs based on time (every 4 years) rather than KM. In the online maintenance schedule (vw.ca) they go by KM instead and it's 90K. I find it kind of odd as well (Mitsu asked for 168K or 186K for instance and I know other manufactures have much longer intervals).
On another hand, there is nothing about coolant replacement interval - time or KM. All they say check and replace if needed. I was thinking to buy some test strips to be able to check the condition myself instead or simply change it every 4 years like I usually do with Mitsu.
What everyone else is doing for coolant flush replacement interval?