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odometer roll back ? S70

posted by  boobstoy on  Sun Aug 19 00:33 CST 2007
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last visit: Fri Nov 6 06:57 CST 2009
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Hello,
I am in the process of purchasing a 1998 s70 glt turbo. Odometer reading 93,000 miles. Current owner asking 6400.00. I offered 5500.00 which we agreed upon. Problem. I used car fax to check vehicle records and it appears that this car has roughly 190,000 miles on it according to car fax records. Of course car fax says it could have been input as a clerical error. What are some other methods you would look for to make a final determination if this information is truly correct.
Thank you.








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    odometer roll back ? S70

    posted by  bill d cat on  Sun Sep 2 16:50 CST 2007
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    last visit: Mon Aug 11 04:23 CST 2014
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    Do you have the service records and the logbook?

    -BTC

    '98 V70 T5 5-speed, 173k mi, heated velour cloth comfy chairs, factory HD suspension, Bilstein HD, front IPD stabilizer bar, Volvo strut tower brace and skidplate, XC grill, C70 jewel E-Codes, V-1, Lidatek, IPD stuff, JB Weld, Original Duck tape, zip-ties, two '06 Honda license plate nut impressions in back bumper (gift from daughter), Mobil-1 since new.

    "The two largest English-speaking countries in the world are India (350 million out of 1 billion) and the United States (300 million). By 2025 the number of English–speaking Chinese is likely to exceed the number of native English speakers in the rest of the world."







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    odometer roll back ? S70

    posted by  TimeToBakeTheDonuts on  Wed Aug 29 14:18 CST 2007
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    last visit: Thu Aug 29 16:10 CST 2013
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    As Klaus pointed out the ECU stores the mileage, but the ECU may have been swapped,

    If I were buying this, I would pay someone to read the ECU, and compare the result to the odometer and the carfax. Then I would hope to use common sense to figure what seems to be most likely.








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    odometer roll back ? S70

    posted by  KlausC on  Sun Aug 19 04:38 CST 2007
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    last visit: Fri Oct 24 10:15 CST 2014
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    This is a tough one. If there are any service records going back a few years or a friendly dealer where the car was serviced, you could check the milage. If the ECU has been swapped out from another vehicle, you are out of luck with the scanner.
    190K miles is a lot, and timing belt would have been changed (check for sticker with date).

    Klaus
    --
    Please answer, we need to know if the advice is good or bad. The 164 has a new home, all I am left with are 2 turbos :)








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    odometer roll back ? S70

    posted by  dennis 850 on  Sun Aug 19 02:19 CST 2007
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    last visit: Tue Nov 13 14:21 CST 2007
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    Hello, I believe the info for the mileage is stored in the vehichles ecu. It has a digital odometer, so even if it was changed with a lower mileage one it would change to the number stored in the ecu. You could take it to a volvo dealer or an independent with Vadis software and they shouldbe able verify the correct mileage.
    Thanks
    Dennis








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      odometer roll back ? S70

      posted by  someone claiming to be A.T. on  Wed Aug 29 06:07 CST 2007 [RELATED]

      Yes, the milage of the vehicle is stored in the ecu. I recently have my odometer replaced. And the ecu automatically set the new odometer to the correct milage right after the car was started. It's almost impossible to tinker with the milages of these cars.
      1998 S70 2,0T 101,000KM Istanbul







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        odometer roll back ? S70

        posted by  TimeToBakeTheDonuts on  Sun Sep 2 16:04 CST 2007
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        last visit: Thu Aug 29 16:10 CST 2013
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        The ECU resets the odometer? That must be something it is commanded to do, because if your odometer fails due to gear breakage, those miles are just lost. In other words the ECU can't read the odometer, and adjust it accordingly. The function you mention must assume an odometer set at 0 initially?

        I know the odometer is incremented by pulses from the ECU - it would neat to sit and watch it ratchet the new odometer up to the stored mileage from 0, if that is how it works.







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