S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

Odometer Not working

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Old 03-09-2019, 05:35 PM
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1993 300se
Odometer Not working

I am new owner of 1993 300SE w140. I pulled the cluster because the odometer (old Style) had stopped working. I sent it to Overseas in Texas and they tested it and found it was electrical and not the gears. They couldn't do the repair and sent it back. I jumped the gun before I knew I had a voltage drain. I did the parasitic voltage test and found the cluster has a serious current draw. I have viewed the MBCluster video and it is very vague about the repair. IE Replace the transitors located here. You cant really tell which ones he is talking about.
The rest of the cluster and instruments work fine. Has any one replaced the NPN and PNP resistors to repair the odometer? With the cluster working I don't suspect the capacitors or the regulators like some have experienced. Any information or help will be much appreciated.
El Fishbone
Old 03-09-2019, 06:44 PM
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1999 E300TD
After all the putzing you are about to torment yourself with---forget it, look for a used one that works.
Old 03-09-2019, 08:51 PM
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1993 300se
Plutoe,
Yeah you are probably right. I can do the soldering and some limited troubleshooting but that's about it. being retired I have all the time in the world and I also have a round tuit
any suggestions on sourcing a used one from a reliable source?
Thanks
Old 03-10-2019, 11:31 AM
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Many crash shops use LQK or LKQ for their used parts,give em a try!

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