thanks for all your replies. from those you have listed siguro ito yung mga pwedeng pa replace:

1. Battery
2. Tires
3. Clutch disk, Pressure Plate, Release Bearing
4. Brake Pads - replaced na
5. Shocks
6. Bushings
7. Tie-rod and other suspension parts
8. CV Joints
9. water pump, timing belt and tensioner bearings
10. all belts - replaced na

He just had his A/C compressor and fan blower motor replaced nung January, sabay na din yung cleaning.

I think that would be enough to make his car run without problems for a year or more.

thanks guys!