out of a '85 300D. I replaced the compressor and dryer last weekend and have been working on the car (a "customer") trying to get it to make you "turn it down". I was not able to get what I considered the proper amount of air flow out of the system and also noticed some oil in the condensate. This is what I found. No wonder I was not getting as much air flow as I thought I should. It will continue to be an r12 car.
Took me 3-1/2 hours to get it on the floor. The lift even makes dashboard work tolerable.

Attached Thumbnails

   

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Jim

I've always had that thought in the back of my mind why my 82's blower doesnt seem to blow as hard as some of my others. Next time my dash is out I'm going to have to check that.

I have an 87 300E at the house right now with the blower out and it's evap looked just like that. I cleaned it out as best as possible with it in the car, after charging the a/c and putting in a new blower motor and regulator, they both were toast.

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

That may be something the rest of us may need to check into with 20 year old cars.

Where do you think most of that garbage came from? You mentioned oil in the condensate, any suspicions as to the source?

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Sam

84 300SD 350K+ miles ( Blue Belle )

3 1/2 hours to get the evaporator completely out of the 300D!!

That's simply amazing.

That lift must cause you to work at warp factor IX.

I wonder how many of us have the same situation???

Oh yea!!
This is a link to the evaporator in my 300TD. 21 years old and dirty.

evaporator out of the 300TD

http://www.peachparts.com/shopforum/attachments/tech-help/11524-evaporator-out-300td-300td-evaporator.jpg

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

Jim and Dave,

One end of that evaporator seems to be where the blockage is the worst. That appears to be the passenger side if I'm not mistaken. Maybe if I pull the blower motor, I can access it enough to spray a foaming coil cleaner that a friend of mine in the air conditioning business has mentioned. I would like to be able to clean it without breaking into the system.

Do you think there is sufficient access by removing the blower motor?

Thanks for any insight,
Sam

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Sam

84 300SD 350K+ miles ( Blue Belle )

FWIW: 126 evaporator cleaned (and minty fresh ;))

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The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)

Passenger side top is where the most build up is located. I would suggest try pulling the fan and cleaning trick.

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Jim

Why do you go and show us pictures like these....it scares the rest of us with less than perfect air-flow!

Good job though...looks like that thing needed some love...