VCDS START/STOP and ALARM coding works on one car does not work in another.

Hello everyone,

I have a problem with VCDS coding and, I cannot find a solution, hoping that some more experienced users can help me. 

Background of problem: I and my SO both own Octavia mk3. I have 2016 pre facelift model mk3, she has 2013 model of same car. I bought mine 8 months ago, for her we bought Octavia a week ago. 

With VCDS I have very successfully disabled Start/Stop by changing voltage parameters as shown in this post: Disable Stop/start - VCDS tweak (vwwatercooled.com.au) 
This method works perfectly for me without any problem. But although I did same for 2013 Octavia it does not work. Car still has start stop function active.  Do you know why is that and if you know a method that will definetely work?


Second problem:

I have added Alarm function to my car shortly after getting my car. What that function does is basically when someone breaks window and tries to open door from inside while car is locked, alarm turns on and car starts honking continuously. So when I have added this function to my car I realised that alarm does not work every time. Sometimes when I open door it honks sometimes it does not react at all. At first we did have only my car and I just thought that this alarm function should be like that and didn't think about it much.

But now I did same exact coding to Octavia 2013 which we bought very recently and in that "new" car this alarm function works perfectly every time as soon as I try to open door from inside when car is locked car starts to honk like there is no tomorrow. I am not able to understand what is the problem here also. The source that I used for coding can be seen in this video. It is in Turkish but video is short and explains everything very clearly so I think sharing this video is more explanatory.  Video can be seen by clicking to this link .

I have checked the coding and they are same in both cars and I have recorded screen in all VCDS coding sessions and I have checked those videos and I am sure that I haven't changed something else by mistake that could cause functions not work properly.


I think those differences are because of cars years and maybe cars brain works differnetly thus not all codings work in cars in same way. 

Alternatively for example if you have a method that worked for your car and is different than what I did you can share them as well. I can try them.


Thanks in advance.