i bought my car used with 30k i cahnged all the fluids what other maintenance should i do ? plugs,plug wires stuff like that ?

 

Do a boost leak test. Good idea if you're generally trying to make sure the car's running like it should.

 

Yeah, I would change the plugs and/or wires. Also, just examine the drive belt and timing belt for excessive wear and tension. The drive belt is recommended to be changed at 30K, but I don't see the point unless cracking or teeth missing. Other than that, the air filter. Just check everything that the owners manual tells you to check and change at the 30K interval. You can do most at home with a jack.