windscreen wipers
 

Hello my name is Ian and i have an r reg 540i and my windscreen wipers have packed up,now 2 weeks ago i had a diagnostics reading done and it could'nt show me where the problem was and i dont have a lot of money to spend on it as the
mechanic did offer to take it apart and test various parts to what is wrong with it,so i do know its not the stalk and its not the motor as he did say that would have shown up so he did say it could be the relay but i dont know where to locate them so please if anybody can help me find where i out the new one i would be most thankful.