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#1
03-26-2003, 10:27 AM
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W126 subframe mount clarification needed
There are two W126s in our family - a 1981 300SD and a 1990 300SE.
I am suspecting they are long overdue for subframe mount replacements as well as differential mounts. I went to the Baylor U. site for info and noticed it covers only the rear subframe mount bushings. I would appreciate it if someone could clarify how many front and rear subframe mount bushings there are as well for the differential. Also, why are the rear ones discussed more often then the fronts ? I've read various threads and have a good idea what's involved but not very clear on the above questions. Thanks for any help you can offer, Alan 
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#4
03-26-2003, 05:50 PM
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As you can see, there are two rear sub mounts. The kit comes with everything except for the center bolt, which the Baylor site says to replace. Get this at your dealer. There is one rear diff mount...at least the one that looks like this: click here. It's under transmission. Remember when you replace it, replace the nut strip (2) inside the frame rail as stated on the Baylor write up. Also get those at your dealer. In the manual it discusses a differential bushing which almost looks like a half spherical looking thing...can't find it on FastLane, and I am not sure if this is a replacement item. Maybe someone else knows. I also want to know why the front sub mounts are hardly ever mentioned....they don't have them in FastLane as far as I know. Anyone?
__________________
'86 420SE Euro 904 Midnight Blue, Gray Velour Dad bought it new, now I own it. "A Mercedes-Benz is like a fine wine, it only gets better with age."
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#5
03-26-2003, 05:56 PM
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Thanks for elaborating on the fine details.
It explains why some items are not showing up at fastlane. As for the Baylor site, for some reason the page disappears as soon as it finishes loading and switches to a "Not Found" page.
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#6
04-01-2003, 12:45 PM
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Fastlane doesn't call them front subframe bushings
Go to the suspension section and look at "bearing bracket bushings". I'm 95% sure this is what you're talking about. I just changed mine and know how frustrating it can be when there are several different names for the same part. Good luck.
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#7
04-01-2003, 01:39 PM
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Yes, that looks like it could be the correct part. However, it shows a front set and a rear set. Where would the rear set go? The rear set shown is surely not the same rear subframe bushings that we know under another name. They look different and the price is very different. It has to go somewhere else. Just wondering if anyone knew where the rear set goes.
__________________
'86 420SE Euro 904 Midnight Blue, Gray Velour Dad bought it new, now I own it. "A Mercedes-Benz is like a fine wine, it only gets better with age."
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#8
04-02-2003, 12:55 PM
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There are two bushings per side
Look at the bracket that holds your guide rod joint (it's right behind the lower control arm). You will notice that there are two vertical cylindrical parts of the bracket that bolt to the frame. Inside each cylinder is a set of bushings. There are two sets of bushings for each side. My bushings were so worn they came out by just wiggling them back and forth with a large screwdriver. I suspect they would have been much harder to remove had they not been so dried up. Good luck.
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#9
04-02-2003, 01:21 PM
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Aahh..I see, so they are all four in the front. One is just the rear of the front!
 I am replacing most of the rubber on my car. I've already done the motor mounts, motor shocks, and tranny mount and I've got the rear subframe mounts and diff mount sitting in my garage, just haven't tackled that one yet. Do you think I should replace these too? Also, what do you know about the diff mount? I got that one that is kinda U-shaped, rear one I guess. Is there another diff mount maybe in the front of the diff that needs replacing also? The manual showed something else, I think they called it a bushing. I'm not really sure...
__________________
'86 420SE Euro 904 Midnight Blue, Gray Velour Dad bought it new, now I own it. "A Mercedes-Benz is like a fine wine, it only gets better with age."
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#12
04-02-2003, 08:09 PM
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Go here for the exploded view of the 81 front end
http://www.************************/BitMapPage.aspx?bitmapid=150&bitmapname=126%20Front%20Suspension%20and%20Steering The 81 rear suspension http://www.************************/BitMapPage.aspx?bitmapid=149&bitmapname=126+Rear+Suspension If the body style is the same they usually don't change a lot on the suspension. The 90 should be ABOUT the same. I'm sure they may have had improvements. My 107 Service manual shows the early stuff. The 560SL I have has 124 brake setup. Dave
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1970 220D, owned 1980-1990 1980 240D, owned 1990-1992 1982 300TD, owned 1992-1993 1986 300SDL, owned 1993-2004 1999 E300, owned 1999-2003 1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD 1988 560SL, 100,000mi, owned since 1995 1965 Mustang Fastback Mileage Unknown(My sons) 1983 240D, 176,000mi (My daughers) owned since 2004 2007 Honda Accord EX-L I4 auto, the new daily driver 1985 300D 264,000mi Son's new daily driver.(sold) 2008 Hyundai Tiberon. Daughters new car
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#13
04-02-2003, 08:46 PM
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Reinhardt...that is the mount that I have in my garage that I have no installed yet. I was wondering if there was a second mount (not the same) on the front side of the diff.
On that blow up from PP, I saw the control arm bushings...should I go ahead and replace those along with the subframe mounts? Are they hard to do? Thanks guys!
__________________
'86 420SE Euro 904 Midnight Blue, Gray Velour Dad bought it new, now I own it. "A Mercedes-Benz is like a fine wine, it only gets better with age."
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#15
04-11-2003, 08:49 PM
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Quote:
Nothing on doing the bushings without removing the semi-trailing arms. Sixto 91 300SE 87 300SDL 83 300SD
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