The car was bought by a private individual When the car is bought by a private person, the Purchase Act applies. 

The cancellation provision can be found in section 39 of the Purchase Act. It states;
"The buyer can cancel the purchase if the defect results in a significant breach of
contract"
There must therefore be a significant breach of contract. If cheating with the mileage is a "significant breach of contract", I will return to.

The car was bought by a dealer
If the car has been purchased by a professional party, the Consumer Purchase Act applies. The provision on termination can be found in section 32 of the Consumer
Purchases Act. It appears from the Act; " Instead of a price reduction pursuant to section 31, the consumer may terminate the agreement, except when the defect is insignificant "

As we see, the wording is somewhat different in the Purchase Act. According to the Consumer Purchase Act, it is enough to be able to cancel a car purchase that there
is a defect that is not "insignificant". If cheating with the odometer is such a shortcoming, we will take a closer look.

Is cheating with the odometer a basis for raising 

There is much to suggest that cheating with mileage is a factor that may be reason enough to cancel a car purchase.

There is some case law in this area. An important ruling from the Court of Appeal was handed down in 2007. This involved the purchase of a second-hand imported
car from Germany. It had apparently been regularly serviced in Germany. 
The Speedometer showed that the car had driven 107,000 kilometers. It turned out that it was probably not correct. 
The car was then driven 1000
kilometers and at a later check the light module still shows 107,000 kilometers.
 In this judgment, the court ruled that the car had been driven longer than 107,000 kilometers and the buyer had the purchase canceled.

Consumer purchases
The judgment from 2007 referred to a consumer purchase. The court ruled that cheating with mileage was such a weighty factor that it gave the right to cancel the car purchase. In light of the ruling, there is much to suggest that if the seller has tampered with the mileage, you have a good chance of having your car purchase canceled.
.
The reason for this is that you can never be completely sure how far the car has driven and whether there are other conditions that the seller has cheated
with. Moreover, it is clear that the seller has acted disloyally.

However, it is important to emphasize that each case must be considered specifically and it is not a given that you are entitled to have your car purchase canceled despite
the fact that the mileage has been cheated.

Bought by a private individual
If the car was bought by a private individual, the threshold for canceling a car purchase is somewhat higher. It follows from the wording of the provision. 
There must be a "significant breach of contract" When it comes to cheating with the mileage, this is a factor that clearly points in the
direction of a "significant breach of contract". If it has been proven that the seller has
cheated with the mileage, it is natural to assume that he has behaved disloyally.

The car you have bought probably also has a lower market value than what the seller has expressed. It is a known fact that cars fall in value in line with use, and if
the seller has cheated with the mileage, you have most likely bought a car that has
gone further than what the seller has stated.
It must again be emphasized that each case must be considered specifically. The fact that the mileage has been cheated with is no guarantee that you can cancel your car purchase. It's just a weighty moment.

Complaint
Finally, we must say a few words about complaints. It is absolutely crucial for the case that you complain to the seller as soon as you discover that the car may have
some defects. If you do not notify the seller relatively quickly, you may lose the opportunity to cancel the car purchase.

Read more about complaints by clicking here .
Contact us
If you have bought a car that you think is defective, contact us. With us, you get a free assessment of your case.

Coverage of legal expenses
In car insurance, there is often a legal aid insurance that will be able to cover the costs of a lawyer. For a deductible, the insurance company usually covers 80
percent of the costs of legal assistance in the event of a dispute.

https://sbadvokat.no/juks-med-kilometerstand-kan-kjopet-heves/