Ok the resturant does not effect to car but it is all the same outcome. I noticed it starting to do this only this yr. I wil be going through a drive thru and feathering the clutch when it is my turn to move forward (kinda like if you were in stop and go traffic) and once I get to the end of the line and start to move at full gear engaged... It will jump and jerk almost like if you were stalling it and kept pushing the gas untill I have to put the clutch in all the way and pretty much go from a stop. I have NO CLUE what is causing this but it only happens sometimes and ONLY in a drive thru (I dont drive in stop and go traffic so I don't know if it would happen then). Has ANYONE had this problem or heard anything of it? No flashing lights pop up and it drives fine after it happens. It's a 2003 S2 with 133000khms on it, I don't think the clutch has been replaced but it is fine in normal driving conditions...

 

Sounds like heat soak. Blip the throttle a few times before taking off. I get this when sitting in heavy traffic (what you said you never do)

 

Well it is about 35c out today when it did it again...

 

Also you might try this. Before I did this my car had similar symptoms Rough clutch engagement

 

This has been discussed dozens of times, and you'll get all sorts of opinions about this.

This is likely caused by heat soak. When you press lightly on the throttle, the RPMs initially go down, then catch up to where it is supposed to be. When this happens, your body momentum (transferred through your leg to your foot) causes the car to go into a bucking motion.

As mentioned, you can blip the throttle and it will go away. Here's how I deal with it: Wedge your foot against the carpet as you press down on the accelerator. The added friction prevents you from transferring your body's momentum to the pedal, preventing the bucking.

Try it. I can turn this symptom on and off at will just by doing this.