I've been having problems off and on with the blower for the AC/Heater, etc, on my '84 380SE. Today, the temp hit 100, and the blower wasn't working, so I visited my mechanic.

I parked, walked into the office and described the problem. Without moving a muscle, my mechanic said the problem is the switch panel just above the radio. He suggested that I hit the middle divider and see what happens.

I went out, started the car, no blower, and hit the side of the divider with my fist. Guess what. The blower came on.

I walked back in and reported the results. My mechanic smiled and explained that the solder deteriorates over time. He said he could remove it and maybe resolder it, but it would be better to simply replace the unit. He said resoldering it would cost just as much because of the labor involved.

A new unit is on order, and I have an appointment for Thursday morning. He guesses cost will be $250 or so. (Now with my luck, we'll have a cold wave starting Friday.)

So, if you're having trouble with the blower, try giving the divider a good wack. If the blower comes on, you'll know what the problem is.

You could have also picked up a used unit via this junkyard database. I did this when my buttons were sticking badly:

http://www.car-part.com

Also, I wouldn't be surprised if the problem is your blower motor. Thus, Possibly, the brushes are worn down. Hitting the dash where you did or slamming the door might be enough to jar things back together. There are some for sale on ebay right now for your vehicle, or you can by a repair kit with instructions here:

http://www.**************.com

specifically here:

http://www.**************.com/store/item.php?item=126%20Heater%20Motor%20Repair%20Kit

Whatever you do, do not let your repair guy return your old heater controller until you are sure that it was the problem.

__________________
Willy

'94 E420 White

Mods
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Berg Werks Keyless Entry
Buzzer replaced with Chime
Dash Light Upgrade
Burlwood/Leather shift knob
Alpine CDA-9815 Head Unit
2002/2003 16" C Class 7-Spoke Wheels
Updated "Chip" to fix Code 19 problem