Headlight washer issue

Hi I tried to change the number of activations before the headlight washers kicked in from 10 to 20 OR change the delay so I have to hold the stalk for 2 seconds ie 0ms to 2000ms



However, when I follow the various online instructions I've seen for VCDS or OBDEleven, I don't have the right options. And when I selected Frontwash (in german) it said "Not active". But I do have headlight washers and they work!



What am I doing wrong? Anyone got a step by step?



So far I have tried



Select ‘09’ Central Electrics
Select ‘Adaptation’
Scroll to ‘Scheinwerferreinigung’.
Change the value under ‘SRA Verzoegerungszeit’ from ‘0 ms’ to ‘2000 ms’.
Green tick to Confirm



But I don't have a Scheinwerferreinigung option



I also tried



1. Go to [09] Central Electronics
2. Go to Access permissions
3. Enter access code 31347
4. Go to adaptation channels
5. Front_Wash_Function
6. Change value, but get error Not available.



And when I select Front_Wash_Fuction I get "Not Active"



You don't have to have the headlights on or anything daft do you?



thanks!



Nick