R12 or R134? Is "Duracool" any good? It's really hot where I live--110+ is common in the summer.

Should be a sticker in the engine bay that will tell you. They take different fittings so it is not possible to put in the wrong one (well - unless you make a serious effort with adapters, etc. - not recommended).

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Charles
1983 300D, bought new, 215k+ miles, donated to Purple Hearts veterans charity but I have parts for sale: http://www.peachparts.com/shopforum/mercedes-benz-cars-sale/296386-fs-1-owner-83-mb-300d-turbo-rebuild-parts.html

R134

My '95 diesel had R134.

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- Brian


1989 500SEL Euro
1966 250SE Cabriolet
1958 BMW Isetta 600

Stick with the original refrigerant. If hydrocarbons were widely-used here, I would consider them. But as they are rare (and illegal in a handful of states), I am using 134a. I don't want extra liability hanging over my head if I get in an accident and the hydrocarbon refrigerant causes any sort of problem.

R134a starting in '94 I believe.

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Gone to the dark side

- Jeff

Your '95 E300D has 134 in it. I have the same car - if you want to double check, there should be a green sticker (mine was green after I wiped off all the grime) along the front of the engine housing once you lift up the hood. The low pressure connection on mine has a blue cap and is up on top - following the AC line back toward the washer fluid reservoir. The high pressure connection has a black cap and is located down in front of the engine - below the fuel pump pulley.

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'95 E300D ("Tank") - 231,000 miles
'79 240D ("Biscuit") - 197,250 miles (Sold)
'83 240D ("Ding-Ding") - 217,000 miles (Death by deer)
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"Back off, man. I’m a scientist” ~ Peter Venkman