Legal guarantee of conformity

This page explains the guarantee the law gives you when a product is not what it should have been. It is not a guarantee we grant as a courtesy: it is a right, and no contract can reduce it.

1. How long it lasts

If you bought as a consumer, the legal guarantee of conformity lasts 24 months from delivery (Articles 128 to 135-septies of the Italian Consumer Code, as rewritten by Legislative Decree 170/2021).

Two points that many websites still state wrongly, and that are worth knowing:

  • The two-month notification deadline no longer exists. Before 2022 a fault had to be reported within two months of discovery. That obligation has been abolished: you can report it at any time within the 24 months.
  • In the first year the burden of proof is not yours. For faults appearing within 12 months of delivery it is presumed that they already existed at the time of delivery: you do not have to prove it, we have to prove the opposite (Article 135(1)). From the thirteenth to the twenty-fourth month the burden shifts to you.

The action is time-barred 26 months after delivery, so it is better not to wait until the last day.

2. What «not conforming» means

A product does not conform when it is not what you were entitled to expect. In practice:

  • it is not fit for the purpose for which goods of that kind are normally used;
  • it does not match the description or the sample you saw on its page;
  • it does not have the qualities and performance attributed to it by advertising or public statements;
  • it is not fit for the particular use you specified and we accepted — the typical case of someone who writes «I need it to work on this ECU» and receives a confirmation;
  • it lacks the accessories or instructions that were to come with it;
  • it does not receive, where applicable, the updates needed to keep it conforming.

Not a lack of conformity: normal wear, damage from dropping or improper use, damage from installation badly done by someone else, modifications made after purchase, and the fact that the product does not do something its own page never promised.

3. The particular case of vehicle coverage

With diagnostic and programming tools this point deserves a line of its own, because it is the most frequent dispute in this field.

A tool's vehicle coverage is not a fixed characteristic of it: it grows and changes with the manufacturer's updates. The lists published on the product pages state the date they refer to and are that snapshot, not a perpetual promise. The lack of support for an ECU that was not in the list at the time of purchase is not a lack of conformity.

The opposite case, however, falls squarely within it: if an engine was shown as supported in the list, or was confirmed to you by us in writing, and the tool does not handle it, then the product is not fit for the particular use you had stated, and the guarantee applies.

That is why, with these items, we insist: if one specific ECU is decisive, ask us before buying and keep our written answer. That answer counts as part of the product description.

4. What you can ask for, and in what order

The remedies are set by law in a precise sequence (Article 135-bis):

  1. Repair or replacement, at your choice, free of charge. You may choose the remedy you prefer; we can propose the other only if the one you asked for is impossible or disproportionately costly compared with the alternative, and in that case we explain it with figures.
  2. If repair or replacement is impossible, or we do not complete it within a reasonable time, or the fault reappears, you may ask for a price reduction or for termination of the contract with a refund of what you paid.

«Free of charge» means free of charge: the shipping to get the product to us, the labour, the materials and the return journey are at our expense. If the fault is serious, you may go straight to termination without asking for a repair first.

A minor lack of conformity, for which repair and replacement are impossible, does not give a right to termination but to a price reduction.

5. How to invoke it, in practice

Write to [email protected] stating:

  • the order number (MT-year-number) or the invoice;
  • what the product does and what it should do: the single most useful piece of information. «It does not work» costs two emails; «in Boot mode it connects and then fails at 12% of the read, on this ECU» sometimes gets solved with one reply and nothing shipped at all;
  • photographs or a short video, if the fault can be seen;
  • since when it happens, and whether it always did or started later.

No registered letter and no certified email are needed: an ordinary email is fine and establishes the date. Keep the invoice or the order confirmation, which is the proof of purchase and of its date.

We normally reply within one working day with the outcome and, if a return is needed, with the address and collection arrangements. The practical procedure is on the Returns and refunds page.

6. If you buy with a VAT number

The 24-month legal guarantee of conformity is reserved by law for consumers. A buyer acting in the course of a business or profession is protected by Articles 1490 ff. of the Italian Civil Code, under different rules:

  • the defect must be notified within 8 days of discovery, failing which the right is lost;
  • the action is time-barred one year after delivery;
  • the remedies are termination of the contract or a price reduction, plus damages.

To these are added, where they exist, the manufacturer's commercial guarantees: many tools in the catalogue include a period of updates and support, and some a lifetime guarantee on the device declared by the maker. Those are the manufacturer's terms, stated on the product page, and they add to your statutory rights without replacing them.

7. Remapping work and files

With a service, conformity is measured against what was agreed, not against an object. If the file delivered does not match what was agreed, you are entitled to restoration of the original software, to a new file, to a price reduction or to termination of the contract, on the conditions set by law.

Outside the guarantee are results that depend on the state of the vehicle: a smaller gain than expected on an engine with a failing component, a clogged filter or fuel of a different quality is not a lack of conformity in our work. We say so plainly in the terms of sale too, at section 10, because it is the point where expectations most often part company with reality.

8. If we disagree

We write to you with the reasons, not an unexplained refusal. If we cannot reach a point of agreement, the ways of resolving the dispute — ADR bodies, mediation at a Chamber of Commerce, the competent court — are in section 13 of the Terms and conditions of sale. As a consumer, the competent court is the one of the place where you live.

9. Related pages

Last updated: 1 October 2026.

Other legal notices

Page updated on 01/10/2026