I tried looking for existing threads on this but couldnt find any. The lever {manual climate}to switch from the dash vents to the floor vents is stuck and will only move about have an inch leaving the dash vents permantly on. I would like to have it fully functional any idea's as to why it is stuck?
Thanks,
Mike

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81 240d

You may have a kink in the cable going to the vent lever. Or a blockage where the cable attaches to the lever. Or something is blocking the internal flaps in side the evaporator box. I would guess the cable.

Here is your AC system taken apart. This goes to a 1983 240D ( as well as the 300TD specified pictures). The 79, I think had a different slide lever. But the idea is the same. In the post my black plastic bracket is broken so your setup will be a little more difficult to get to. There is a metal bracket in picture 46. This might be broken or the metal slide area could be broken.


http://www.peachparts.com/Wikka/W123Evaporator

Remove the plastic trim behind the fan and heat knobs and take a look.

Dave

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car

Thanks, I will try to locate the problem.

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81 240d

If you take the glove box out you can reach up in back and see if the linkage is fouled.

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"