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R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
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32,330 Posts
Discussion Starter #1
Someone posted the brake release knob might be NLA. It is available. Part number 107 420 00 95. I received one from the Classic Center with other parts I ordered. I think I posted the wrong part number before.
 

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Registered
75, 280Sl /5speed
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1,330 Posts
That was me. It never occured to me that their would be different part #'s
for a simple knob. EPC says the part # for a 75 280SL is 1155400028, with no "replaced by" reference, and is no longer available. But this is all a part of what we were talking about. Search function says this part # applies to 380 and 450's but a quick check shows the 560 uses the same part. And another trip down the old MBz rabbit hole.
 

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R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
Joined
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32,330 Posts
Discussion Starter #3
I tried to order the part number listed for the 280. Tom told me the correct number and shipped it. He stated the 115 part number was a starter knob. Made no sense to me but I got the right one.
 

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Outstanding Contributor
450slc5.0cab 280sl5sp 280se4.5 500se+500slAMG +250seStkW108 350sl4spdX3 500secEuro
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22,556 Posts
Thanks for this info. The knob on the 78 I just bought is split right down the middle and has a wad of glue or something in there.

Does anyone know if there is a trick to replacing these? There appear to be two fins remaining on the end of the shaft that go inside the knob. I know I should post a picture, but it isn't easy to get to the car and knob right now. :( :)
 

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R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
Joined
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32,330 Posts
Discussion Starter #6
I just finished effing this up on the 280. Knob broke off. Unscrewed the part that was left and the cable immediately disappeared. Very tight finding it to get it back. Maybe tomorrow. I suggest pulling the cable out and clamping it. Then unscrew the knob and replace.
 

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Outstanding Contributor
450slc5.0cab 280sl5sp 280se4.5 500se+500slAMG +250seStkW108 350sl4spdX3 500secEuro
Joined
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22,556 Posts
I just finished effing this up on the 280. Knob broke off. Unscrewed the part that was left and the cable immediately disappeared. Very tight finding it to get it back. Maybe tomorrow. I suggest pulling the cable out and clamping it. Then unscrew the knob and replace.
It sounds like you might be glad you didn't already send me your brake release knob. :)

So the knob should just unscrew from the shaft? Or does the whole shaft have to be replaced?

(I should check the EPC.)

Sorry to hear about the brake cable rowdie. On a manual trans I honk the brake is pretty important too. But Oklahoma is pretty flat, isn't it?
 

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R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
Joined
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32,330 Posts
Discussion Starter #8
Knob just unscrews from the shaft. This area of Oklahoma is not flat. Western edge of the Ozark mountains.

I mailed the knob over a week ago. You should have received it by now. Damn USPS.
 

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Always Remembered RIP
1979 280sl 4 sp w/ac 1957 MGA 1998 volvo xc/70 2004 F150
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6,050 Posts
YOU M-F&&*&ers, you had to talk about break releases and now mine won't !!
 

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Outstanding Contributor
450slc5.0cab 280sl5sp 280se4.5 500se+500slAMG +250seStkW108 350sl4spdX3 500secEuro
Joined
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22,556 Posts
Knob just unscrews from the shaft. This area of Oklahoma is not flat. Western edge of the Ozark mountains.

I mailed the knob over a week ago. You should have received it by now. Damn USPS.
I was away all week. It was sitting on my desk. Sorry and huge thanks!

It is always so nice to see a handwritten note these days. Thank you so much!

... And there are those spark plugs I ordered too.


I just got home last night at 3 am, assumed I got no mail because it wasn't on the kitchen counter.

Ask rory about my poor ability to realized things have arrived in the mail. :)
 

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Registered
'71 250, '78 450SLC 5.0, '78 450SL, '81 380SLC 5.6, '89 260E, '15 Kia Sorento
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5,269 Posts
My brake release knob on the 74 was broken compliments of the tow truck driver.
 

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Always Remembered RIP
1979 280sl 4 sp w/ac 1957 MGA 1998 volvo xc/70 2004 F150
Joined
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6,050 Posts
All I said was it wouldn't release anymore, must be one of those "if it lasts more than 4 hours, seek medical help" things. :)
 

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Outstanding Contributor
450slc5.0cab 280sl5sp 280se4.5 500se+500slAMG +250seStkW108 350sl4spdX3 500secEuro
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22,556 Posts
All I said was it wouldn't release anymore, must be one of those "if it lasts more than 4 hours, seek medical help" things. :)
Seek medical help? I thought you were supposed to call all your friends and brag about it.
 

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R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
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32,330 Posts
Discussion Starter #17
Had to remove cluster to access the rod and put it in the hole. Couldn't do it from below. Replacement knob does not have the chrome trim around the center like original.
 

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1974 450SL
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236 Posts
agree
replacement knob pics dont look like my original so now I am thing a drawer pull from a home supply wharehouse may be a better way to go than a $20+ knob that doesnt match anyway.
 

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R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
Joined
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32,330 Posts
Discussion Starter #19
If you can find one with metric diameter and thread pitch it should work. M5x0.8
 

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1988 560SL (California Model)
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5,103 Posts
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