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W124 E300 12v 1992 and a 2009 Crown Victoria
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Discussion Starter #1
Hello.

That's so I can find them online, if I manage to get thru with online purchases, that is. Still can't find credible stores to ship to Saudi Arabia. Hopefully I find them in English so I can distinguish my face from my *** looking around.

There are two seals for the Engine that hold engine oil in. One front and one rear. I know the timing cover seal and it's different than the front part I'm looking for. And there are two seals for the transmission, front and rear as well. What are those called in English, or rather, internet language?
 

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'95 E300 DIESEL, '91 600SEL, '92 600SEL
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I think you are referring to the front crank(shaft) seal and the rear main seal

For the trans, I think you mean the front input shaft seal and rear output shaft seal. On automatics, the font one is also referred at times as the torque converter seal
 

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Discussion Starter #3
Cool!

Is it true all of those are shared between M103 and M104 the same (including the timing cover seal)? I understand that M104 could use the same transmissions for M103 but I still need to make sure. Amazone and Ebay seem to list the same subject parts for those two engines and I don't wanna be an online test subject. They also don't use VIN's, as far as I can tell.
 

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I wouldn't go so far as to say ALL are shared, however the M104 is a further development from the M103 so some parts are going to be shared. BUT to assume M104 parts are therefore interchangeable with a M103 is a unwise assumption.

However, you should at least order by motor type if ordering by vin# is not possible
 

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1993 300CE Cabriolet (mine) ; 1994 E320 Wagon (wife's) ; 1990 Benz 300E 2.6 (son's)
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the only way I'll get any mercedes parts is by looking up the mercedes parts number by VIN, reading any details or exceptions in the parts catalog, then searching by mercedes pn...

the rear engine seal for M103.980, .981, .982, .983 should be...

  • A 017 997 74 47
    SEALING RING CRANKSHAFT SEALING, REAR
    Replaces: A0099979047

  • A 011 997 06 47
    SEALING RING CRANKSHAFT SEALING, REAR;REPAIR SIZE

  • A 010 997 90 47
    SEAL RING CRANKSHAFT SEALING, REAR;REPAIR SIZE

and the front one is,
  • A 120 997 03 46
    SEALING RING CRANKSHAFT, FRONT
    Replaces: A0099978947

  • A 010 997 89 47
    SHAFT SEAL CRANKSHAFT, FRONT;REPAIR SIZE

  • A 010 997 34 47
    SEAL RING CRANKSHAFT, FRONT;REPAIR SIZE

  • A 013 997 68 47
    SEAL RING CRANKSHAFT, FRONT;REPAIR SIZE



there's no notes explaining the difference between the various 'repair size' variants.
 

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Discussion Starter #6
Now I'm confused. Can I just take the Y replaces X part and ignore everything else with "repair size" remark?
 

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Discussion Starter #7
I found this:

It gives parts names and numbers using VIN.
 

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Now I'm confused. Can I just take the Y replaces X part and ignore everything else with "repair size" remark?
Stick with what goes inside your M103. I cannot think of a single M104 part (p/n# starting with 104xxxxxxx) that is suitable to a M103, except if there was a revised/updated part but that is really rare.
 

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Discussion Starter #9
I mean for different part numbers in the tables above. They are all for M103 but they come in many variants even other than the numbers and the replacements. I think I'll just look for the number that replaces another in said field and ignore the numbers in the other fields (that have "repair size" remark).
 

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1993 300CE Cabriolet (mine) ; 1994 E320 Wagon (wife's) ; 1990 Benz 300E 2.6 (son's)
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on various other procedures, the 'repair size' alternative parts are for when the assembly has been overbored, but I'm not seeing any reference to this on the timing cover (front) seal, or the rear seal in the service manual
 
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