Hi guys.

I have a 1993 500SEL, and I think I have a problem with my heater blower motor and/or regulator. When the temp settings are set to heat, I get very little force, or blown air, coming from my vents. I try the red "booster" button in the center of the dash, and it just won't blow. In the summer, the AC blows good and hard, and so does the defroster. It's only the heater that seems to be kaput. So, my question is this. Does the heater blower motor indeed only "blow" the heat? If so, are they hard to replace? I see it's about $700.00 for the part w/ regulator and fan, so i'm hoping it's only the motor

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1993 500 SEL 121,000
2003 Toyota 4Runner 4X4 Limited (Sweet!)
1995 Ford Bronco 351 Windsor 135K miles (Hunting truck)

Past Vehicles
1999 Landrover Discovery II 46,000 (Sold)
1998 Lexus ES300 (Sold to get my Benz)
1973 Chevy Nova SS (drove it till the body fell apart in '87)
1971 Chevy Camaro (wrecked in high school)