Heater and Wiper Problem ! X Relay

Read a few articles on her on this subject so I in I went try to get these pesky things to work.
After 6 hours and putting the car back together absolutely no joy!
Read a good few articles on here for suggestions etc etc

After all this work I found another Relay that fits in the X Relay  Fixed in 1 minute flat All Working better then they ever have !
 :dontknow:
Can anyone explain what this X relay is and its purpose  :dontknow:

Can anyone explain what this X relay is and its purpose

No but i will look in to it