Neutral/Park safety switch replacement - Mercedes-Benz Forum

Go Back   Mercedes-Benz Forum > Mercedes-Benz Roadster Forums > R/C107 SL/SLC Class
New User? Register - Forgot Password

BenzWorld.org is the premier Mercedes-Benz Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 07-06-2011, 02:24 PM   #1 (permalink)
BenzWorld Veteran
 
Date registered: May 2010
Vehicle: 1979 450SL UK spec
Location: Dunfermline
Posts: 649
Neutral/Park safety switch replacement

A few weeks back I was stranded 50 miles from home, the problem turned out to be a faulty NSS switch preventing the car starting.

After initially shorting out the switch to get going, I got round to replacing it tonight. Luckily I had a spare switch from my old 350 engine/gearbox.

Old unit.



Here are the tools I used, 8 and 10mm spanners, socket wrench and a flat headed screw driver for levering.



Front support.



Rear support



Here is the switch on the side of the gearbox, tight access.



Releasing the switch from the shaft with a 10mm socket.



Releasing the bottom fixing bolt 8mm.



Releasing the top bolt 8mm.



Once the bolts were off, the switch could be levered off and the connector was released.



The connecting rod was then released from the stick bush and the entire assemble was removed.





Reassembly was done simply in the reverse order with the replacement switch and link.
__________________

Last edited by RaceDiagnostics; 07-07-2011 at 12:09 AM.
RaceDiagnostics is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-06-2011, 04:25 PM   #2 (permalink)
Moderator
 
rowdie's Avatar
 
Date registered: Jun 2008
Vehicle: '73 450SL: '81 280SL: 1986 560SL: '84 500SL AMG: 1984 280SL 5 speed (Strassenkr÷te)
Location: OklahoMoKan
Posts: 23,189
Lifetime Premium Member
Good post. Not easy to get to the linkage clip under there. Not much on the trans in the EGv 107. Good job.
rowdie is offline   Reply With Quote
Old 07-06-2011, 05:28 PM   #3 (permalink)
It Is What It Is, Dude
 
isthisdave's Avatar
 
Date registered: Mar 2006
Vehicle: 1978 107.024 RIP
Location: InTransition
Posts: 19,609
Lifetime Premium Member
.


Quote:
Originally Posted by rowdie
Not much on the trans in the EGv 107.


Where do you guys think it should go?

There is no trans section in the EGv107, 'cuz I copied the online Service Manual system and there's no trans section in it.

So what about Section 54, electrical, or what?

We do have Drivetrain...
isthisdave is offline   Reply With Quote
Old 07-06-2011, 05:57 PM   #4 (permalink)
Moderator
 
rowdie's Avatar
 
Date registered: Jun 2008
Vehicle: '73 450SL: '81 280SL: 1986 560SL: '84 500SL AMG: 1984 280SL 5 speed (Strassenkr÷te)
Location: OklahoMoKan
Posts: 23,189
Lifetime Premium Member
Drivetrain would be good. Or electrical.
A trans section would be best. I know there have been posts on the modulator valve and trans. mount. Pretty sure someone did a post on trans filter and draining torque converter. My brain has been rattled around the last couple of days bouncing in a tractor mowing and raking hay.
rowdie is offline   Reply With Quote
Old 07-06-2011, 06:51 PM   #5 (permalink)
It Is What It Is, Dude
 
isthisdave's Avatar
 
Date registered: Mar 2006
Vehicle: 1978 107.024 RIP
Location: InTransition
Posts: 19,609
Lifetime Premium Member
.


41 is Propeller Shaft in the SM. I had called it Drivetrain, we'll add Transmission.


And near half of 'em are RD's!


Added 7/6/2011
isthisdave is offline   Reply With Quote
Old 07-07-2011, 03:49 AM   #6 (permalink)
Lifetime Premium Member
 
3547fl's Avatar
 
Date registered: Nov 2009
Vehicle: 1989 560SL
Location: Orlando, FL
Posts: 1,931
Lifetime Premium Member
A little off topic. But when I changed out the transmission in my 560. I had a heck of a time finding anything on the transmission. Finally found a PDF file in line that covers it.
Here it is if someone wants to put it somewhere.

Well it's too big to upload, if someone wants to e-mail me for it you can have it.
__________________
1951 Oldsmobile Restoration Blog: http://51olds98.blogspot.com/
3547fl is offline   Reply With Quote
Old 11-11-2011, 07:22 PM   #7 (permalink)
BenzWorld Junior Member
 
riccarr's Avatar
 
Date registered: Jun 2011
Vehicle: 1981 380SL
Location: Portland, Oregon
Posts: 48
Hello,

I'm currently wrestling with symptoms of this very same issue (no start). I just replaced the bushing on my linkage. http://www.benzworld.org/forums/r-c1...ml#post4969390

My car is a 1981 380SL. Looking at your pictures, the unit your calling the NSS, where the linkage connects onto the "stud" from the unit. I have that same unit, however what perplexes me is that online pictures of the NSS are not that.

Example: Mercedes® Neutral Safety Switch, 107/123/124/126/140/202/210 chassis - Mercedes Parts and Accessories

This part I do have on my transmission; is it located right beside where the linkage assembly your showing was removed from.
riccarr is offline   Reply With Quote
Old 11-11-2011, 07:28 PM   #8 (permalink)
One of the BW Old Guard
 
Ears's Avatar
 
Date registered: Aug 2004
Vehicle: 1988 560Sl
Location: Fort Payne, Al
Posts: 5,518
Lifetime Premium Member
Mercedes® Neutral Safety Switch, 107/123 Chassis - Mercedes Parts and Accessories

Look a little deeper on the performance products website... rarely do I rely on pics from a parts house...
__________________
RM Smith www.rmsmithco.com

Where is it again that we are going... And why are we in a handbasket?
Ears is offline   Reply With Quote
Old 11-11-2011, 07:38 PM   #9 (permalink)
BenzWorld Junior Member
 
riccarr's Avatar
 
Date registered: Jun 2011
Vehicle: 1981 380SL
Location: Portland, Oregon
Posts: 48
That part does not fit the 380SL; the one I linked to does, so there must be a difference between the car of the OP and my 380.
riccarr is offline   Reply With Quote
Old 11-11-2011, 07:44 PM   #10 (permalink)
One of the BW Old Guard
 
Ears's Avatar
 
Date registered: Aug 2004
Vehicle: 1988 560Sl
Location: Fort Payne, Al
Posts: 5,518
Lifetime Premium Member
Quote:
Originally Posted by riccarr View Post
That part does not fit the 380SL; the one I linked to does, so there must be a difference between the car of the OP and my 380.
bear in mind, he was working on a 450, so differences could easily exist. I understood you to say yours was "like" his, so I pointed you in the direction of what matched RD's switch.


I'd recommend you shop elsewhere, or confirm part number. ...or you can order from performance products, an otherwise reputable parts house (in this case something is amiss, either the picture or part fitment).

Better yet, contact Mercedes Parts, Mercedes-Benz Parts for the part... not listed on his online catalog, but online only has a portion of what he has available. Then there is always the dealer...

Last edited by Ears; 11-11-2011 at 07:51 PM.
Ears is offline   Reply With Quote
Reply

  Mercedes-Benz Forum > Mercedes-Benz Roadster Forums > R/C107 SL/SLC Class

Bookmarks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Topic Author Forum Replies Last Post
neutral safety switch hankG. General Mercedes-Benz 0 03-24-2010 05:41 PM
Neutral Safety Switch stout W124 E,CE,D,TD Class 1 11-27-2008 08:27 PM
Neutral Safety Switch Replacement jikky54 W126 S,SE,SEC,SEL,SD,SDL Class 1 03-29-2008 09:22 PM
Neutral Safety Switch/Backup Light Switch SC Surfer W123 E,CE,D,CD,TD,TE Class 13 01-18-2008 01:45 PM
Neutral Safety Switch Chupper W124 E,CE,D,TD Class 1 01-11-2004 03:33 PM


All times are GMT -7. The time now is 11:51 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.