Can someone please tell me how to check to see if I have a block heater. I do not have a cord coming out of the grille. I head that they were installed on some but not all in that era.

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http://www.libertyagrifuels.com
1984 300D Turbo
1980 300SD Sold
1983 300TD Sold
Dagger 16 ft. Legend Canoe (for the weekends)
Marin Northside Trail Mtn. Bike

You'd see the connector for the cord to attach to at the block heater which would be in the right side of the block above and just to the front of the starter. Visible on my 79 SD by holding a mirror under the manifold above the alternator and shining a flashlight into the mirror.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Damn. I replaced my starter this past summer, I didnt even think to look to see if I had one or not.

....since now I am looking to see if I have one....Brrrrr.

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83 300TD (need rear wiper assembly dead or alive)
84 300SD Daily driver
85 300TD almost 400k miles and driven daily.
98 E300D *sold
86 300SDL *sold and made flawless 10 hour journey to new home.

It's put in place of the middle freeze plug. You'll prongs sticking out of it if there is one.

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AFAIK, none of the OM61x engines had block heaters installed at the factory. Certainly not in the W123 chassis (300D-T) but possibly in the W126 chassis (300SD). Any 300SD people know?

The original owner had one year from date of purchase to ask the dealer to install a block heater for free; after the first year you had to pay for it. People in cold climates often took advantage of that offer; people in warm climates usually did not. Thus, my 1985 300D, originally sold and still resident in northern California, did not have a block heater when I bought it.

Because of the difficulty of accessing the right side of the 1985 OM617 engine w/trap catalyst, I chose to install a heater in the lower radiator hose.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

See I just don't understand why customers didn't take advantage of it if it was free to install. I have the original coupon book with the sticker for the blocker heater, but the coupon was ripped out. Yet no block heater.

If it was a free add on then of course add the stupid thing even if you're not going to use it.

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-Typos courtesy of my mobile phone.