Digital mileage correction & dealers
Discussion
JB! said:
Yes there is a function in VAG-COM to show injector "mileage" which cannot be altered. Clocks can be adjusted with relative ease.
Hi JB - in what way can it not be altered?? If it's an electronically stored piece of data which can be read by the diagnostic tools and which the car's electronics themselves update, there's no reason why it shouldn't be changed by the same means as for the odometer. It may be more challenging to find the parameter to change, and I guess the clockers (whoops did I say that?) would probably not bother since their punter would presumably, in most cases, just like to see the odometer change on the dash. The hackers are always more clever than the 'professionals'. And with car electronics, there doesn't seem to be a great deal of effort put into securing them by the manufacturers.If someone's removed 30,000 miles in one go, then the service history etc may not tally etc and it may be more obvious. If a previous owner has had it clocked on several occasions, and then had the services done each time the mileages have been changed...it's difficult to spot it except for the condition of the car, and it will have a full service history with tallying mileages.
The other point of course is, the dealers don't care and don't ask. A friend of mine works in the trade at a main dealer in Brentford, and he told me that on the cars they buy in or p/x, they don't check anything except HPI, that the condition is ok (or can be made ok economically) and that the service history is full and up to date.
The only way to protect yourself is to buy new.
jezzaaa said:
Hi JB - in what way can it not be altered?? If it's an electronically stored piece of data which can be read by the diagnostic tools and which the car's electronics themselves update, there's no reason why it shouldn't be changed by the same means as for the odometer. It may be more challenging to find the parameter to change, and I guess the clockers (whoops did I say that?) would probably not bother since their punter would presumably, in most cases, just like to see the odometer change on the dash. The hackers are always more clever than the 'professionals'. And with car electronics, there doesn't seem to be a great deal of effort put into securing them by the manufacturers.
If someone's removed 30,000 miles in one go, then the service history etc may not tally etc and it may be more obvious. If a previous owner has had it clocked on several occasions, and then had the services done each time the mileages have been changed...it's difficult to spot it except for the condition of the car, and it will have a full service history with tallying mileages.
The other point of course is, the dealers don't care and don't ask. A friend of mine works in the trade at a main dealer in Brentford, and he told me that on the cars they buy in or p/x, they don't check anything except HPI, that the condition is ok (or can be made ok economically) and that the service history is full and up to date.
The only way to protect yourself is to buy new.
AFAIK the only way to change it is to physically change the ECU, which is easily done on most VAG cars, i had 2 different ones that i could change in 5 mins in my Cupra.If someone's removed 30,000 miles in one go, then the service history etc may not tally etc and it may be more obvious. If a previous owner has had it clocked on several occasions, and then had the services done each time the mileages have been changed...it's difficult to spot it except for the condition of the car, and it will have a full service history with tallying mileages.
The other point of course is, the dealers don't care and don't ask. A friend of mine works in the trade at a main dealer in Brentford, and he told me that on the cars they buy in or p/x, they don't check anything except HPI, that the condition is ok (or can be made ok economically) and that the service history is full and up to date.
The only way to protect yourself is to buy new.
its a record, non-adjustable, the way to check if a car is clocked is to get the clocks to show "injector mileage"
as for clocking itself, it isn't illegal, but not telling someone the mileage might not be genuine is, after all, do the clocks cover the milage of the shell or the engine? if you change engines do you zero the clocks? what if the engine is used as a donor in a lower milage car, with the clocks, i wouldnt want to gain 50k overnight.
Buyer Beware.
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