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  #1  
Old 06-27-2007, 07:31 AM
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Join Date: May 2006
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82 300SD Wiper Arm Removal

The wipers on my 300SD aren't working and I need to remove the wiper motor. The problem is that I can't get the wiper arms off - which you need to do in order to remove the grill covering the motor. I did a search but it seemed that most suggestions outlined how to rmove the nut holding the arms on. As far as I can tell, mine doesn't have any nuts on the arms. Does anyone have any suggestions as to how I can get these off? Any suggestions on what I should be looking for in the motor?

Thanks

Bert

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  #2  
Old 06-27-2007, 07:56 AM
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Join Date: Mar 2007
Location: Hampton Roads, Virginia
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Wiper arms attach the same way for most MBs....

First, flip up the small end cap at the base of the arm.
Next, remove the nut, 10mm I think.
Wiper arms are splined on the shaft, if they are frozen on, try rocking the arm to break the two parts apart.

Might also try some penetrant and let it soak for a bit. I've also had some luck using a wooden wedge under the lower portion of the arm, the opposite side from the wiper.

Never had one I could not unstick, so I think you'll eventually get them off.

Jim
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Old 06-27-2007, 01:47 PM
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I had tried a number of times to get that off but was always afraid that if I pushed or pulled too hard I would damage something. So, I just went down to the parkade at lunch and forced the end of the arm up a little harder and - pop - up it went! Thanks. I will now be able to remove the arms this evening.

Bert
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Old 06-27-2007, 10:59 PM
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Well, I've got some good news and some bad news. The good news is that I was able to remove the wiper arms and motor. Plus, it turns out that the motor is OK - the linkage is binding badly so I will have to soak it in WD 40 to see if I can loosen it up. The bad news is that the block of wood I was using when prying the arm off was resting on the bottom of the windshield. As you have probably guessed, I now need a new windshield. Figures: I finally get the windshield wipers fixed and there is nothing to wipe anymoore

Bert

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