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  #1  
Old 10-03-2010, 12:00 PM
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Help with understanding different models & what all those #'s mean

OK, I've been thrown into maintaining my own car. No biggie, but b/c I haven't been doing it I need some help understanding some things. I've had the car a little over a year & have heard these terms but not paid a lot of attention.

I have an '83 240d manual. I'd like to know what years are compatible w/ this for parts.

Also, what do 123 & 124 mean(I think it has something to do w/ body style???)? When I hear 200 series does that mean my car? When you all talk about WW2 cars what years/models do you mean?

Just tryin to get up to speed(no pun intended), so I don't feel so ignert about all this.

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  #2  
Old 10-03-2010, 12:22 PM
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Depending on what particular component you're interested in, many parts are interchangeable between all 123's, that is a chassis designation, just as a 124 or a 126, no parts fit different chassis's, or at least very little.

I'm not familiar with the WW2 cars folks refer to.
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  #3  
Old 10-03-2010, 12:51 PM
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Most people refer to the chassis(body style) when they talk about Mercedes. All MB chassis numbers are 3 numbers except the really early ones. The common ones around here are w115, w116, w123, w124, w126, and w201. But there are lots of others. Your's is a w123. There are many models within the chassis number. The w123 chassis has 240D, 300D, 300CD, 300TD, 280E, 280CE, 280TE, and several others that you'll probably never see here in the US. The model names encompass the size of the engine and the different body styles within that chassis style. A T on your truck badge means you have a Touring(Wagon) vehicle. While a C means Coupe. The D is diesel, the E is gas. A 300D can be found in the 115, 123, and the 124 chassis, but they all are a different body style. Try a search on wikipedia for a chassis number and it will tell you everything you want to know about that chassis, and which models were available.

As for parts that will fit your car. Any w123 chassis MB will have parts that will fit your car, but no all parts will work. There are subtle differences in years and models that yields parts that aren't always useful in all years. You'll even find parts from the 115, 116, and 126 chassis that will work in your car though there are a lot fewer parts that are interchangeable between chassis.

Yes 200 series refers to your car, it's refering to the engine size. Your 240D is a diesel with a 2.4 liter displacement. Displacement is the volume of space inside each cylinder when the piston is all the way down. If you were able to push all your pistons down at the same time to the bottom and fill the space above them with water you'd need 2.4 liters to fill them up.
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  #4  
Old 10-03-2010, 02:57 PM
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Join here, it's the official M-B site and has excellent diagrams for parts and repairs

http://www.startekinfo.com/StarTek/parts.jsp

For generic info:
http://en.wikipedia.org/wiki/Mercedes-Benz_240D
http://en.wikipedia.org/wiki/Mercedes-Benz_W123

For resources - the upper right corner black "Resources" button has excellent DIY's

Knowing your engine number (a 616, I believe, but could be wrong) is helpful.

Putting your car year and model and some sort of geographical location in your sig or in your profile is also helpful.

There's also the russian VIN decoder that may list what is installed in your car based on the build plate. Note the warning about the russian mafia. http://old.mbclub.ru/mb/notes/parts/?lng=eng&id=9&idpart=4
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Old 10-03-2010, 03:45 PM
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This practice of referring to a Mercedes as a "200 series", "300 series", etc. is a relatively new phenomenon, and IMO a very poor way to categorize Mercedes.

Ebay was the first place I noticed using the "200 series" nomenclature, in the late 90's. Since they also had "E-Class" and "S-Class categories", it made searching for a particular model difficult.

For example. In the 500 series category you could have a G500 big boxy SUV, an SL500 2 seat convertible, or a 560SEL luxury sedan. In the 200 series category you might find a 280GE big boxy SUV, a 280SL 2 seat convertible, a 280 SE luxury sedan, or a 240D.

Usually, the number in the model indicates the size of the engine.

In some instances, such as when a chassis is nearing the end of production, Mercedes might decide to use the next generation engine in a well known model. In these instances, the number in the model name might not indicate the engine size. For example, in the early 90's when the 300D came back to the US market with the 2.5 liter Turbo Diesel, as the "300D 2.5".

In recent years Mercedes has strayed even further from the old # based model designations. Lately Mercedes hasn't bothered to inform us when the engine size differs from what the model name might indicate. For example a C240 really had a 2.6L, and a C230 Hatchback really had a 1.8L.

It's enough to make ones head explode all over their keyboards!
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  #6  
Old 10-03-2010, 05:24 PM
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BMW has series. Mercedes has classes. This has always been the way.

I don't feel bad for the C230 (aka Silver Star Civic) having the wrong number nomenclature. That thing is a shameful excuse for a Mercedes.
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  #7  
Old 10-03-2010, 05:38 PM
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True. I'm hoping we can blame such lapses on Chrysler.
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  #8  
Old 10-22-2010, 12:53 AM
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Sorry I bailed & didn't reply sooner...thanks for the help. Looking through wiki & the all the info here really helped!

yak, got your message about the manuals, thanks. russian VIN decoder...I checked it out just to see the message about the russian mafia! very funny.

here's to a smooth winter with no car troubles!

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