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  • FIRST POST
    • Tommygunn
    • By Tommygunn 4th Jul 18, 4:03 PM
    • 79Posts
    • 40Thanks
    Tommygunn
    Ascertaining the true mileage of a 2nd hand car - possible?
    • #1
    • 4th Jul 18, 4:03 PM
    Ascertaining the true mileage of a 2nd hand car - possible? 4th Jul 18 at 4:03 PM
    Is it possible to find out the true mileage of a car by doing a more in-depth analysis of the vehicle? I've been reading that the vehicle ECU can be read and will be more or less accurate to what is displayed on the odometer, or not.

    Can this be done at home with an OBDII gadget or would it need to be taken to a specialist with the right equipment to examine the ECU?


    Cheers,
    Tom.
Page 1
    • Tarambor
    • By Tarambor 4th Jul 18, 4:22 PM
    • 3,222 Posts
    • 2,331 Thanks
    Tarambor
    • #2
    • 4th Jul 18, 4:22 PM
    • #2
    • 4th Jul 18, 4:22 PM
    If its 3 years old or more just check the MOT history. If its under 3 years old go to a dealership and get the service history printed out.

    Whilst some record the mileage in the ECU not all do.
    • alan_d
    • By alan_d 4th Jul 18, 4:50 PM
    • 56 Posts
    • 35 Thanks
    alan_d
    • #3
    • 4th Jul 18, 4:50 PM
    • #3
    • 4th Jul 18, 4:50 PM
    I've been reading that the vehicle ECU can be read and will be more or less accurate to what is displayed on the odometer, or not.
    Originally posted by Tommygunn
    What make / model car?
    Certainly with Volvo the ECU stores it and it can be read with VIDA. Other makes will probably have it also.
    • arcon5
    • By arcon5 4th Jul 18, 4:54 PM
    • 13,606 Posts
    • 8,629 Thanks
    arcon5
    • #4
    • 4th Jul 18, 4:54 PM
    • #4
    • 4th Jul 18, 4:54 PM
    How old a car we talking
    • motorguy
    • By motorguy 4th Jul 18, 5:40 PM
    • 16,957 Posts
    • 10,090 Thanks
    motorguy
    • #5
    • 4th Jul 18, 5:40 PM
    • #5
    • 4th Jul 18, 5:40 PM
    Is it possible to find out the true mileage of a car by doing a more in-depth analysis of the vehicle? I've been reading that the vehicle ECU can be read and will be more or less accurate to what is displayed on the odometer, or not.

    Can this be done at home with an OBDII gadget or would it need to be taken to a specialist with the right equipment to examine the ECU?


    Cheers,
    Tom.
    Originally posted by Tommygunn
    As has been said, dependent on age - for the first three years of its life, dealer history. For > 3 years then online MOT history check.

    Either way, an HPI check too (though wont give much more information on mileage)

    An OBD reader wont read the ECUs in a car to enough depth to get you the mileage info. A main dealer should be able to interrogate the ECUs though and give you an accurate mileage. I say ECUs because there are several on most cars, and the mileage is held in various locations, including sometimes the key.
    "We have normality. I repeat, we have normality. Anything you still can't cope with is therefore your own problem."
    • macman
    • By macman 4th Jul 18, 6:02 PM
    • 42,022 Posts
    • 17,467 Thanks
    macman
    • #6
    • 4th Jul 18, 6:02 PM
    • #6
    • 4th Jul 18, 6:02 PM
    Service history should show the mileage, if it's an old style printed service log.
    No free lunch, and no free laptop
    • sevenhills
    • By sevenhills 4th Jul 18, 6:13 PM
    • 1,334 Posts
    • 492 Thanks
    sevenhills
    • #7
    • 4th Jul 18, 6:13 PM
    • #7
    • 4th Jul 18, 6:13 PM
    Has it had previous owners, look at their address on the V5 and get in contact and ask them the milage at that time.

    • prowla
    • By prowla 4th Jul 18, 6:13 PM
    • 9,860 Posts
    • 8,003 Thanks
    prowla
    • #8
    • 4th Jul 18, 6:13 PM
    • #8
    • 4th Jul 18, 6:13 PM
    I bought a car a while back which had a surprisingly low mileage specified in the ad.


    I went and checked the MOT history and found it had gone backwards one year; I suspect it had a new instrument cluster.
    • Geodark
    • By Geodark 4th Jul 18, 7:18 PM
    • 813 Posts
    • 527 Thanks
    Geodark
    • #9
    • 4th Jul 18, 7:18 PM
    • #9
    • 4th Jul 18, 7:18 PM
    Its even possible to re-prog some of them - I know with vauxhall the mileage is in two places in memory. one for the instrument cluster and one for the actual mileage
    • Tommygunn
    • By Tommygunn 4th Jul 18, 7:38 PM
    • 79 Posts
    • 40 Thanks
    Tommygunn
    Yes, to clarify, we are talking a 2010 Opel Zafira, here, in Italy. Everything would appear to be fine but I just want to make sure 100%, which is why I want to go this route i.e. some sort of gizmo to dig down.


    Tom.
    • debtdebt
    • By debtdebt 4th Jul 18, 8:06 PM
    • 544 Posts
    • 343 Thanks
    debtdebt
    With an 8 year old run of the mill car like a Zafira, any discrepancy in mileage would likely have zero effect in it!!!8217;s value.
    • Tarambor
    • By Tarambor 5th Jul 18, 5:25 PM
    • 3,222 Posts
    • 2,331 Thanks
    Tarambor
    I went and checked the MOT history and found it had gone backwards one year; I suspect it had a new instrument cluster.
    Originally posted by prowla
    I used to be into Ford Capris. Nobody ever took any notice of the mileage on the clock because they used to fail so often hardly any still had the original in.
    • motorguy
    • By motorguy 5th Jul 18, 6:46 PM
    • 16,957 Posts
    • 10,090 Thanks
    motorguy
    Yes, to clarify, we are talking a 2010 Opel Zafira, here, in Italy. Everything would appear to be fine but I just want to make sure 100%, which is why I want to go this route i.e. some sort of gizmo to dig down.


    Tom.
    Originally posted by Tommygunn
    At that age, buy on condition and evidence of how well its been maintained, not on what the numbers say on the dash.
    "We have normality. I repeat, we have normality. Anything you still can't cope with is therefore your own problem."
    • poppasmurf_bewdley
    • By poppasmurf_bewdley 6th Jul 18, 11:13 AM
    • 5,228 Posts
    • 5,343 Thanks
    poppasmurf_bewdley
    On an eight year old car, the mileage is immaterial. You should be looking at the car's general condition, tyres, etc.

    I once bought a nine year old car with 300K + and ran it for three years before selling it on.
    "There are not enough superlatives in the English language to describe a 'Princess Coronation' locomotive in full cry. We shall never see their like again". O S Nock
    • DoaM
    • By DoaM 6th Jul 18, 1:25 PM
    • 4,509 Posts
    • 4,537 Thanks
    DoaM
    Check the UK MOT history on an Italian car in Italy?

    (Tip: read through the thread before posting).
    Diary of a madman
    Walk the line again today
    Entries of confusion
    Dear diary, I'm here to stay
    • Herzlos
    • By Herzlos 6th Jul 18, 2:06 PM
    • 7,548 Posts
    • 6,916 Thanks
    Herzlos
    Is there something that's making you suspicious or are you just being paranoid?
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