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Old 09-20-2003, 06:39 PM
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dmorrison dmorrison is offline
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Join Date: Dec 2002
Location: Colleyville, Texas
Posts: 2,694
Our 300SDL gave us problems with the AC system. It just wasn't cold enough. The dealer wanted to replace the expansion valve. 12 hours of labor plus parts and suplies. I nixed that because they were not sure that was the real problem.
The expansion valve is behind a cage that was built around the steering column for the airbag.
Someone made a tool to get to the expansion valve without taking the steering support out. Do a search

I feel the problem we had was the ETR control. The AC would work great sometimes and poor to nil others. All this while the pressures were OK.

The Idea of a blocked eveporator I will agree. Heres the link to a pict of my 123 eveporator.

evaporator out of the 300TD

Lots of blockage.

As steve said, check your vacuum elements.

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
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