Recently when I start the car in the morning and try to wash the windshield, the washers don't work. If I turn off the engine and restart, still no washers. But after I go a mile or so I can turn off the engine and restart and the washers will work.

Clearly something electrical but I've got no idea where to start. Anyone else ever have this problem?

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'04 E53, 4.4 Sport
'97 E39 528i
'86 911 Carrera, track car
'96 BMW R1100R