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Bruce
Veteran
Date registered: May 2006
Location: Flagstaff, AZ
Vehicle(s): 230GE, 300TD, 200D
Posts: 191
| 460 Speedometer Disassembly?
Hi Guys,
The VDO speedometer in my 460 is getting sick. The needle wants to jump and act erratically. It's the MPH version and I tried an old KPH version and it worked fine so its not a dry cable. What I suspect is that either the worm gear or one of the teeth gears is worn. What I cant figure out is how to get it apart. There are two screws on the back that hold the guts to the case, but removing them only leaves it wiggling in the case. I've found many articles on the net on how to repair the gears in these old mechanical VDO speedometers, but none address how to remove the guts from the case (the metal can and glass face). I'd just as soon not break it completely, so I figured one of you guys can tell me just what I need to know. It's probably something simple, but I just dont see it.
Thanks for any tips.
Bruce |
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Nazrat
Veteran
Date registered: Jun 2009
Location: Northern VA
Vehicle(s): 1994 G320 Europa Import for sale, 2003 G500
Posts: 200
| Re: 460 Speedometer Disassembly?
Yea, I'd like to know too. My odometer works but not the trip odometer.
-Tad |
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Titus Pullo
Elite Veteran
Date registered: May 2007
Location: Ottawa, ON, Canada
Vehicle(s): '90 Wolf 240GD, '06 G270 CDI.
Posts: 1010
| RE: 460 Speedometer Disassembly?
Done this copla times; using flathed screwdriver and piece of cloth carefully open the back side of the aluminum locking ring which holds the glass to the body, once open you can take the guts out and repair; after the repair carefully close it in reverse order. No rocket science there. |
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Inkblotz
Expert
Date registered: Apr 2006
Location: Georgia
Vehicle(s): 90 300GD "Thundering Turtle II", w/ 603A turbo
Posts: 3186
| Re: 460 Speedometer Disassembly?
This may help: http://www.pelicanparts.com/techarticles/Mult_gauge_repair/mult_gau...
This is more like our gauge housing: http://www.myrideisme.com/Blog/how-to-restoring-vdo-gauges/
Mark
Edited by Inkblotz 11/23/2009 9:07 PM
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dai
Expert
Date registered: Apr 2006
Location: Oregon USA
Vehicle(s): 300GD 300TD BMW R100RS Landini 80F
Posts: 2110
| Re: 460 Speedometer Disassembly?
Or send it here: http://www.paspeedo.com/
-Dai |
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Bruce
Veteran
Date registered: May 2006
Location: Flagstaff, AZ
Vehicle(s): 230GE, 300TD, 200D
Posts: 191
| Re: 460 Speedometer Disassembly?
Thanks guys! I'll let you know what I find when I get it apart. I've fixed the odometers in MB 123 cars, but this one is the speedometer needle jumping. |
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Jonathan Joseph
Expert
Date registered: Oct 2006
Location: Charleston, South Carolina
Vehicle(s): 2004 G55
Posts: 1538
| RE: 460 Speedometer Disassembly?
Woops never mind!
Edited by Jonathan Joseph 11/25/2009 8:33 AM
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3004
| Re: 460 Speedometer Disassembly?
Here is a good source I recently found for speedo gears, I'm fixing an old MPH speedo right now with a inop odometer
http://www.odometergears.com/products/Mercedes-Benz/G-Wagen+%28... |
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bluegg
Veteran
Date registered: Nov 2016
Location: Oro-Medonte, Ontario, Canada
Vehicle(s): 1985 300GDT, 2003 Beetle 1.8t S, 1982 F350 SC Dual
Posts: 141
| RE: 460 Speedometer Disassembly?
Bruce. Todd here re speedo repair. I got as far as you did and it appeared that the speedo needle needed to come off to slip everything out of the case. Well I couldn't see how to remove the needle without bending it to worthlessness so I took the unit to an old timer VW bug guy near me and he pulled it to pieces, discovered two broken teeth that were causing the intermittent problem of bouncing needle and no odo or trip meters. He removed the broken teeth and now I have speedo but no trip. Seems tough on fuel consumption but great on resale value--not clocking miles. So that does come apart but he won't tell me how. I'm guessing that the needle is glued into place with some epoxy. Just got to figure how to remove the epoxies hold without buggering up the needle, stem or entire unit. These are repairs meant for a watchmaker. |
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AGuess
Elite Veteran
Date registered: Apr 2006
Location: Holly Springs NC
Vehicle(s): 93 500GE, 93 500GE, 2002 G500
Posts: 717
| Re: 460 Speedometer Disassembly?
Bluegg,
I just did this repair on my 93 463 (500GE), there was a 12 teeth gear that split in half that controlled the trip advancement. This was an easy fix with no epoxy needed.
Go to this web site:http://www.odometergears.com/products/Mercedes-Benz/S+class+%28126%29++79-91+Gas/52
Look at their info, call them. They are very nice and will send you the gears you need. I hope you have the old broken one to count the teeth.
Good luck.
AGuess |
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bram_r
Expert
Date registered: Apr 2007
Location: the Netherlands
Vehicle(s): 1984 MB 280GE, 1982 MB 300GD, 1986 Subaru XT 4WD
Posts: 1659
| Re: 460 Speedometer Disassembly?
Here's some more speedo / odometer info:
http://pointedthree.com/disc/forums/showthread.php?tid=12524&posts=... gear&highlightmode=1#M226187 |
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elevatorbernie
Expert
Date registered: Aug 2006
Location: Vancouver B.C. Canada
Vehicle(s): 1989 280GE
Posts: 1347
| RE: 460 Speedometer Disassembly?
here's some more info http://www.pointedthree.com/disc/forums/showthread.php?tid=18728&po... |
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