[emhtuning]

ISTA+ has a reset option which will change and make immediately your oil change due .. i can't remember the exact name , its under the CBS adjustment ABL , not the CBS rest ABL .

but you might put yourself in bigger issue if they have a records which they do , your car will go with 5000mile less on the cluster which will look like you have manipulated your mileage . be careful as your car will marked total lost and loose warranty and free service if your dealer is an a$$hole .

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what I do usually , I change the oil myself without resetting the oil interval at the halfway ( 15000KM in my case ) because I also don't trust the dealer oil. in the case the car does 15000Km only with same oil . and I am happy and dealer is happy too