Mileage cheat devices mercedes
Discussion
Looking at c63 saloons and there seem to be quite a few with more wear and tear, tired interior, stonechips etc. Than the mileage would suggest. Are these interiors badly wearing? Do owners spend alot of time posing in the car but covering as few miles as possible or what is going on?
If there had been a cheat device fitted would a delphi with wurthonline pick up the discrepancy or would all modules record the same?
If there had been a cheat device fitted would a delphi with wurthonline pick up the discrepancy or would all modules record the same?
When I got rid of my C63 estate, the MB dealership did a mileage verification test. The results were printed out and confirmed to me and them before they took it.
Does that mean all approved used AMGs are tested in this way? I don't know, but it does mean they can be and you could ask to see the results prior to purchase.
Obviously non-approved may be different but I don't see why it wouldn't be possible.
Does that mean all approved used AMGs are tested in this way? I don't know, but it does mean they can be and you could ask to see the results prior to purchase.
Obviously non-approved may be different but I don't see why it wouldn't be possible.
Decky_Q said:
Looking at c63 saloons and there seem to be quite a few with more wear and tear, tired interior, stonechips etc. Than the mileage would suggest. Are these interiors badly wearing? Do owners spend alot of time posing in the car but covering as few miles as possible or what is going on?
If there had been a cheat device fitted would a delphi with wurthonline pick up the discrepancy or would all modules record the same?
I don’t know enough about those readers to say. but Xentry will if you look in the right places.If there had been a cheat device fitted would a delphi with wurthonline pick up the discrepancy or would all modules record the same?
In the mercs the mileage is recorded in the dash and the key module (eis module). They update each other over canbus. Whichever has the highest mileage recorded is treated as ‘master’ and updates the other.
If you change the mileage on the dash, it corrects itself after a few seconds when it gets the canbus message and writes the eis mileage to the dash. You cannot roll the eis mileage back but the dash can be.
So people used to fit a canblocker in the dash and roll the dash mileage back. The canblocker prevents the dash being updated by the eis module, but otherwise works as normal.
Nowadays they try and roll the eis module forward to max mileage. This stops the update process and then they roll the dash mileage back. No need to open the dash and fit a canblocker.
If you look at he eis module with xentry you can read the mileage (in km) and it should be within a few 10s of km of the dash mileage.
If it is significantly higher then the car likely has a blocker fitted.
If it reads 999999 it’s been rolled forwards and likely the dash rolled back.
Pretty much all major modules record mileage whenever they record a fault and there can be quite a lot of things recorded that are spurious for whatever reason. Headlights, SAMs, HVAC etc are worth looking at to get an idea of history.
I’ve noticed this myself looking at W205 C63s.
Some examples with a purported 10-30k exhibiting steering wheel wear that appears a lot higher than I’d expect.
The drivers armrest also looked a bit more worn than I’d expect.
I believe there are blockers that can be set to a fraction of the mileage, say 10% though a quick look suggests some of these actually mean the speedo reads 10%.
I wonder if these type are detectable with Xentry or similar - some of the cars I’ve seen with wear etc are on sale at MB so it makes you wonder….
Some examples with a purported 10-30k exhibiting steering wheel wear that appears a lot higher than I’d expect.
The drivers armrest also looked a bit more worn than I’d expect.
I believe there are blockers that can be set to a fraction of the mileage, say 10% though a quick look suggests some of these actually mean the speedo reads 10%.
I wonder if these type are detectable with Xentry or similar - some of the cars I’ve seen with wear etc are on sale at MB so it makes you wonder….
Yes steering wheel was definitely one of the things I noticed, the tops have gone pale grey/navy (depending on the original colour) which with our sun would take forever unless your turning it all the time with your hand at the top.
Think I might look for one showing a healthy dose of miles to be safe.
Think I might look for one showing a healthy dose of miles to be safe.
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