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How to replace your Neutral saftey switch w/pics
When you start your car do you always have to put it in N, do your reverse lights not work anymore? If so it’s either causes by bad wiring, bad shifter bushings, or a bad neutral safety switch.
In my case my back-up lights stopped working and all wires appeared to be good. So I bought a new neutral safety switch. Here what you’ll need: Neutral safety switch part # 000 545 46 06 8mm socket or a wrench, either will work 2 10mm wrenches Flat head screw drivers Pair of pliers 1. Raise the car and locate the switch on the driver’s side of the transmission: 2. Use a small screw driver and easily pry off the electrical plug. Be very careful its is very brittle: 3. Use both 10mm wrenches and remove the bolt and nut that holds the linkage to the tranny. You must remove this bolt or the linkage will not come off the tranny. Once the bolt is out slide the linkage off the tranny: 4.Use your 8mm socket and remove the 2 mounting bolts and slide the switch off the shifter shaft: Here is pic of the new switch installed: Enjoy your working reverse lights: When installing the new switch you might have to use a pair of pliers and turn the black part to the correct spot for the shift lever prongs engage in the slot. You’ll see what I mean when you do it.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
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Nice write up!!
Thank you! AJ
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AJ 1985 300D (SOLD) |
#3
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Most of us have the later style neutral safety switch though, it is mounted differently than yours. It looks like this:
That is a BEAUTIFUL 280CE though! WOW. I wish I lived in Florida so my car looked/stayed so clean.
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
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thanks!!! glad you like it
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
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Quote:
Nice pics. Thanks for sharing.
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1983 123.133 California - GreaseCar Veg System |
#6
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I can start in park but my reverse lights do not work.
Would a bad NSS be the problem?
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1981 240D 143k 4 spd manual -SOLD 2004 VW Jetta TDI 5 speed 300k -still driven daily |
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fruitcakesa,
I've had that problem before, turned out to be a loose fuse.. my fusebox is pretty funky so sometimes I just have to get in there and turn a couple fuses to get things working one day I'll clean that out.. food for thought 79Mercy, Nice writeup! I never knew where the NSS was. Hopefully I'll never need to know Either way it's nice to know these things, gotta love the forum. BTW the 280 is looks great! |
#8
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Very nice write up Mercy, and it is always nice to see your car. That is one I'd love to see in person some day and ride in it.
Now, how on earth do you get your ramps to stay put on concrete when you drive your car up on them? Mine slide..........
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Jimmy L. '05 Acura TL 6MT 2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China" Scar engine installed '81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John |
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Quote:
(Just kidding, I hope she is not watching me type this)
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AJ 1985 300D (SOLD) |
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Quote:
Quote:
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
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Is there a way to electrically test the NSS to be sure of it is bad?
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1981 240D 143k 4 spd manual -SOLD 2004 VW Jetta TDI 5 speed 300k -still driven daily |
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im sure there is, but i don't know
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
#13
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Yes there is, there are four pins in that socket. Two of them shorts in P and N (the safety part of the switch), the other two shorts in R (the backup-light). I don't remember which ones goes to what, but if you have a wiring diagram the switch is covered there and the pins are numbered too.
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Tomas, Sweden 1966 Mercedes Benz 230S with OM617.912, automatic. Disk brakes from W108 1983 Mercedes Benz 300TD grey, OM617.912 and 5-speed manual 1983 Mercedes Benz 300TD blue 7-seater, OM617.912 and 5-speed manual |
#14
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Nice write up and very sharp car!
For the bold and brave there's an older thread detailing how to repair a faulty NSS switch, I followed that guide once and it worked like a charm. It should be noted that the repairing involves drilling out the rivets so they must be replaced by something else after repair, I used very small diameter bolts and nuts. http://www.peachparts.com/shopforum/showthread.php?t=112452
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Tomas, Sweden 1966 Mercedes Benz 230S with OM617.912, automatic. Disk brakes from W108 1983 Mercedes Benz 300TD grey, OM617.912 and 5-speed manual 1983 Mercedes Benz 300TD blue 7-seater, OM617.912 and 5-speed manual |
#15
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I could have done that but I got a new switch for 25 bucks..
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
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