Took This from someone's DIY On Retrofitting an ESC Switch.
· Select Control Module [Select]
· [03-ABS Brakes]
· Advanced Functions Select [Coding – 07]
· Select [Long Coding Helper]
· Select “Byte 29” (the last one on the right).
Now it will say 02 which is coding for ASR disable (only) via switch & infotainment. Now to do as the GTI & R change this 02 value to 09 & select [Do it!]. This then activates the ESC “Sport” as on the GTI & R & brings up a selection box in the infotainment as well. So now the switch operates as follows:-
Short press = ASR OFF, short press again ASR ON.
Press & hold for 3-5 seconds = ASR OFF & ESC ON “Sport”.
Short press again = ASR ON & ESC ON “Normal”.
Also the display in the MFD (driver’s binnacle) will also display ASR off, ESC Sport, etc., as appropriate.
You can also go further (credit to forum member “SHFT”) & instead of “09” code it to:-
Code = Default value / Short press / Press & hold for 3-5 secs
01 = ESC & ASR ON / Blank / Blank
02 = ESC & ASR ON / ASR OFF / Blank (Standard for most Golf’s)
03 = ESC & ASR ON / ESC SPORT / Blank
04 = ESC & ASR ON / ESC OFF / Blank
05 = ESC & ASR ON / ASR OFF / ESC OFF
06 = ESC & ASR ON / ESC SPORT / ESC OFF
07 = ESC & ASR ON / ASR OFF / ESC OFF
08 = ESC & ASR ON / ESC SPORT / ESC OFF
09 = ESC & ASR ON / ASR OFF / ESC SPORT (GTI & R)
Please remember the default position of the switch (not pressed) in all coding modes is as follows:- ASR ON & ESC ON “Normal”.
On some cars Bit values 01, 02, 08, 09 might be the same or interchangeable.
On some cars Bit value 08 might just be XDS OFF
ENJOY!!!!.........
