On my MB it's the A/C that's a on going problem, and money pit. Oh ya, I also have a stick stuck in the center vent to keep the vent open.
Even the most basic systems can go wrong, as with my '90 Toyota PU. Yes, I know, I bought it for $500, so I shouldn't complain, yet it just has a fan switch, and 3 sliders for the heat/ vent, yet no heat. It wasn't the ball valve under the hood, it ended up being one of the ends broke off of the little push/pull wires attached to a slider, so the heat flap doesn't open. I did find that I can manually, reach under the dash and flip it open/closed, though it isn't easy. To fix it right, I'll probably have to take the dash apart, though I'm tempted to do a redneck fix, with an externaly mounted wire. We'll see.....
Rob
'85 300D
Garden Grove, CA
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On 1/14/12 1:55 AM, diesel_mercedes@yahoogroups.com wrote:
Re: 1975 300D CHEAP Posted by: "Ben Pender" ben_pender@yahoo.com ben_pender Date: Fri Jan 13, 2012 9:08 am ((PST)) Guys, The absolute BEST HVAC system came from BMW on several different chassis, but the E30, in particular, was very well sorted. It had a dial for temperature, and a dial for fan speed. Between those were 3 sliders that opened and closed air flow. All the way right was full open, all the way left was fully closed. There was a floor slider, a face level vent slider, and a defrost slider. So, you set the temperature and the fan speed to your preference with the dials. Then direct the airflow *exactly* how you like it. Would you like a lot of heat to the feet and just a little to the dash vents? Put the bottom slider all the way open and open the middle slider half way or less. Basically infinitely variable air distribution through three simple, extremely reliable, sliders. Oh, and I forgot a recirc function, too. When I get to be emperor, I will decree that all cars will be this way. Within a short time, people will wonder why the hell it wasn't that way all along. And, since its dead-nuts reliable and simple with really nothing to break or wear out, it never has to be fixed. No more stepper motors, solenoids, vacuum canisters, etc. Regards, Ben Pender Klassic Autos Vintage European Auto service, repair, and parts Madison, AL 256-489-9560
