Pierburg 2e2 carb trouble solving

Hi all I am new here and owned my golf for just under a month now, I was told at the time of sale the auto choke was faulty. I have spent three weeks of researching the pierburg 2e2 carb. And have now managed to fix the carbs auto choke. Whilst researching I saw lots of people were having the same trouble as me but with no definite answers or solutions.
The symptoms I was having are the following:
1. Struggled to start in the cold and when it did eventually fire up she wanted to cut out and the only way to keep the  engine going was to flex my right foot!
2. When still warming the engine up the car felt lumpy and sluggish through the initial part of the throttle range. However when the car was warm it ran lovely
3. And the choke pull down unit wasn't working.
4. When the engine was running I could hear a hiss of escaping air from the right hand side (when looking at the front of the car) of the carburettor.

Fix for the problem was as follows:
Tere was a mistake in the Haynes manual on the bonnet diagram.
On the inlet manifold, there is a vacuum supply to the advance retard mechanism, brakes, the choke pull down unit and the (carb) three point unit. Part of the system consists of a vacuum store (a green globe) and two non return valves, which look like inline fuel filters, and are half black, half yellow. One of these is usually fitted the wrong way round, because of a series of mistakes by VAG and Haynes.
Follow the vacuum pipe from the green vacuum store, to a T piece that goes into the carb, and then to a non return valve. The YELLOW end should point towards the vacuum store, not (as shown in Haynes and on the under bonnet diagram) the black side.
After changing this valve on my car it starts, idles and drives great when cold and warm!

Information taken from Chris Mancuska's troubleshoot guide.

Hope this helps someone!!