M windshield wipers are failing after only 7000 miles of light use. Wipers smear the water across windshield making visibility extremely poor. There are zero compatible aftermarket wipers that fit the wiper arm. I have visited 3 auto parts stores and none fit. M replacements from dealerships are on long back order. I either have to try to use wipers that may fly off during use because the proprietary wiper arm design isnt compatible with any aftermarket wipers or wait months for another set of poor quality M wipers.