This is my first post cant figure out how to get pictures to show up...sorry
https://www.flickr.com/photos/[email protected]/50606441788/in/dateposted-public/
I own 2 b3 passats and have done this mod in each.
#1 You will need to make the slot wider to fit the b4 switch. I used a file for this.
#2 The electrical plug in the b3 will need 5 of the 7 wires to be repined the match the b4 switch. Look at the back of your old b3 switch compared to the b4 switch and you will see all 7 pins have a lable.
Here is the the correct order for the b4 switch.
P/F - 86/F - 31 - 15 - 58b - 86B - P/B
https://www.flickr.com/photos/[email protected]/50606441788/in/dateposted-public/
I own 2 b3 passats and have done this mod in each.
#1 You will need to make the slot wider to fit the b4 switch. I used a file for this.
#2 The electrical plug in the b3 will need 5 of the 7 wires to be repined the match the b4 switch. Look at the back of your old b3 switch compared to the b4 switch and you will see all 7 pins have a lable.
Here is the the correct order for the b4 switch.
P/F - 86/F - 31 - 15 - 58b - 86B - P/B