Broken Wiper motor
 

I have a 1998 626 with 93,000 miles on it. I have had it for about 1 week. It runs great but I need to find weatherstrips for the front door. ( Cant find them anywere) It rained very hard today and I tried to get the wipers to go full speed. They work only for the low and medium speed but dont work on fast. They only shake alittle and then stop. I dont know if it is the motor or the arms that need replacing. Can anyone advise me as to what to do about this. I really need them to have high speed when it rains hard and I am on the highway. Also, does anyone know where I can get weatherstrips for the front doors?