Mercedes Benz repair: cooling system, engine seams, freon

Question
I just got my a/c repaired and mow when I drive it with the a/c on the engine seams slugish. I also hear a clicking sound coming from the engine, like something is turning on and off. What could that be?

Answer
Greetings Juan!
This could be that the compressor is kicking on and off as far as the clicking noise goes.And may not have enough freon in the system. Depending on how hot it is outside, the compressor will do this as it cycles. If it real hot outside then it should run more than normal.
As far as the sluggish problem, You want to make sure that your auxillary fan is working with your air conditioner and note the temp of your car. It maybe running hot when a/c is on. This will cause lack of power and cause many other problems too!Thanks and i hope this helps! Ricky