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Old 02-23-2003, 11:08 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 19,745
95 S320 odometer - tamper proof?

Where is the odometer value of a 95 S320 stored? If you change the gauge cluster and/or ECU, what does that do to the odometer value?

The overall question is, how tamper proof is the odometer on a W140?

Thanks,
Sixto
91 300SE
87 300SDL
83 300SD
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  #2  
Old 02-23-2003, 11:17 PM
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Join Date: Mar 2000
Location: Gainesville FL
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Depends on your speedo. The early 140 odo was mechanical and as susepible as all speedos to manipulation. All replacements are digital and they are alterable right through the diagnostic port. They are now the least protected they have ever been. See this site: http://www.megachip.de/en/index.html

There are numerous software folks doing this type of repairs. The manuafacturers are trying many different hardware and software locks but this stuff ain't national security and they have trouble keeping that under wraps.
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Steve Brotherton
Continental Imports
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Old 02-23-2003, 11:30 PM
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Just a guy
 
Join Date: Dec 2000
Location: St. Albert, Alberta, Canada
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It's called "cracking" and altering a digital odo is easier that the 'ol mechanical kind. There is no shortage of crooks out there doing it. MB should be taking greater steps to stop it. Look at the SmartKey. Damn thing is unbreakable. You'd think they could come up with some sort of system to stop odo tampering.
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