Hesitating rpm when idle

Hi fellows.

I live in Syria and I have an OCTAVIA ELEGANCE 2001 with AKL engine 1.6 L 74 KW petrol engine and manual gear box.

• When idle, rpm is never stable, it always fluctuate.
  
• When I try to move the car -after I stop on a traffic light- I always feel the accelerating pedal dropping down my foot.
  
• When I drive the car at low speed (rpm is below 1500) sometimes it hesitates and moves forwards and backwards and shocks.
  
• When the engine is cold, there is no problem at all.
  
• When I visit a SKODA dealer, he says that there are no fault codes appear on the VAG COM, but when I lately visited a nearby garage, he said that there is more than one type of MAF fault code though he still thinks that the problem is not in MAF itself.
  

I would highly appreciate your advice.

Thank you in advance.