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1983 240D, 1981 300TD Wagon, 1984 Euro 300D (SOLD)
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Discussion Starter #1
So, I did this Block Heater Install last spring while I was doing a bunch of other crap on my 1983 240D. Maybe there are some other similar threads that have the same info on here that I didn't see, but nonetheless, some of those threads weren't complete enough to help me with everything. I took a ton of photos and documented all the steps and part numbers, so hopefully this will help all ya'll in the future with a similar install, especially cause winter time is coming up. So here ya go, first things first, here is the block heater I used....
 

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1983 240D, 1981 300TD Wagon, 1984 Euro 300D (SOLD)
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Discussion Starter #2
I sourced the block heater from the closest Mercedes Benz Dealer to me (Westminster, if you are in Colorado, use them; they were awesome and not any more expensive than any other place). I chose to use them after 2 failed attempts to get the correct part through Car Quest (worldpac) and another attempt through a European repair garage here in Fort Collins. All of the block heaters that they found for me had too small of a bung and incorrect threads.
 

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W-1-2-3 Go!
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Did you have difficulty with the installation? How did that go? With a 240D like yours access will definitely be easier than a 300D turbo or non-turbo. The metal around the block heater is typically thinner from what I've seen, so it's a bit risky opening the plug to install the heater.

My 300D came with a block heater, never needed it though.
 

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1983 240D, 1981 300TD Wagon, 1984 Euro 300D (SOLD)
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Discussion Starter #4
With the use of other block heater threads on this forum, I was able to get all the correct tools that I needed for the job. I used a 3/4 S&K Breaker Bar that I bought off Ebay for a song, a 3 or 4 foot pipe for added leverage and an Armstrong 19mm Hex Impact Socket (most expensive tool I bought for the job, $55 bucks through Sears).
 

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W-1-2-3 Go!
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Wow, I didn't realize it was that big of a job. Nicely done, and thanks for documenting the process!

Good call doing it early on before the cold weather sets in.
 

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1983 240D, 1981 300TD Wagon, 1984 Euro 300D (SOLD)
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Discussion Starter #6
I seriously did not have any difficulty with the install. Once I got the intake outta the way (I replaced the exhaust and intake gasket too while I was in there) it was a breeze. I was loaded for bear, ready to bust my knuckles and was prepared for the worst, but I just put that socket in and gave it 2 or 3 quick cracks upward and it cracked loose. I used my legs and the leverage of the bar to do so.
I did notice that it required the removal of the starter to get the socket in there because otherwise there wasn't enough room but that was not a problem besides a funky placed bolt that needed removing (see picture). I took a picture so that everyone can see the bolts that hold the starter in, the bottom one was a little hard to find at first and get the leverage to crack loose. That was the hardest part to the job, cause there didn't seem to be a lot of room down by the bell housing to get at it.
 

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1983 240D, 1981 300TD Wagon, 1984 Euro 300D (SOLD)
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Discussion Starter #7
Thanks! I really did have a lot of fun doing the job. It taught me more about my car and I enjoyed being able to document it and show everybody else what they may need.
 

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1983 240D, 1981 300TD Wagon, 1984 Euro 300D (SOLD)
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Discussion Starter #9
For anybody that is doing a search for block heater part numbers and whatnot, even though you can see the part numbers in the pictures, the part number is: A606 200 00 96. So you can just cut and paste that. I recommend a Benz dealership, although my friend GreaseDiesel.org bought his from Autohaus and I think it is the same. Seems to be genuine Mercedes but manufactured in Canada. Go figure. That part number may work for 300D and 300TD's too, but I'm not sure. I would imagine so. Like MBeige said, I'm sure it'll be a bit more involved if you have a 300D with a turbo.
Here are a couple last pictures of the plug I removed and the block heater installed.
 

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85 Audi Coupe Quattro, 85 Audi Coupe GT, 71 BMW turbo 2002, 73 BMW 2002tii, 85 BMW 635csi
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At his average winter temperature, you would only need to plug it in an hour before you depart.
 

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1983 240D, 1981 300TD Wagon, 1984 Euro 300D (SOLD)
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Discussion Starter #13 (Edited)
I believe it is a 300W Heater. It didn't come with any other info. Just the box. I haven't had to use it yet because I just did it last spring. But there will be opportunity to use it shortly. I'm just glad that I have it so that I can use it when I need it. It was a good upgrade, I think.
 

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1983 240D, 1981 300TD Wagon, 1984 Euro 300D (SOLD)
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Discussion Starter #15
That's what I saw too, but I thought it looked like a 3. Ha! 500W is better I guess. I havn't had to use it yet to find out.
 

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'78 240D 4-speed greasel
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They work great! Use a timer to turn it on a couple hours before you leave in the morning and you wont waste any electricity.
 

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Dunno, I'd guess a nice warm 30-ish °F. I've only used them @ 20 °F down to -65 °F
 

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Discussion Starter #20
Well, like my friend greasediesel said, I'll have it on a timer. A couple hours before it's time to start it up and drive. I don't think there will be any need to leave it on for longer.
 
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