Windshield wiper problems

[whitez3]

I have a 97 Z 3 and I have been having problems with the wipers for the last couple of months. The problem is they don't work all of the time. They work then shut off, work, shut off etc. Mechanic has had the car 3 seperate times and is now suggesting we replace the motor. Any suggestions/help would be greatly appreciated. Also the odometer display just went blank. Are these common problems?

 

[grc]

when they are shutting off, what is the vehicle speed? on low speed wiper mine go into a very long interval intermittant when i come to a stop, high speed wiper is the only position that stays continuous at a stop on my car.

 

[whitez3]

thanks grc - It happens at any spped.

 

[grc]

most of my car was replaced under warranty so i can't remember what it was but it could be as simple as the speed sensor? i remember the dealer telling me that the problem (whatever it was) was that there was debris in the way of the sensor one time. i think the Germans should've buddied up with the Japanese to get the electronics squared away. i don't know what the melting point of the air conditioning button is, but i'm surprised it hasn't run down the console yet!