repair status update
As it turn out, the A/C clutch on my 115 is not bad, I only have the tighten the belt. The noise disappear.
I have to replace the lock cylinder on the 124, the lock just turn when the key was inserted. after I loosen the small screw that holds the lock cylinder. The key freeze, will not turn either direction. I have to remove the lock cylinder container off the car door to free the key.
I also replaced the oil sensor, and the transmission shift bushing. The vibration noise is gone.