Right to repair and the data question: what an independent workshop can actually get

Three different things get called "repair data"

Most arguments about access get muddled because the term covers three separate things that live in different systems and are sold under different terms.

The first is repair and maintenance information: procedures, torque figures, wiring diagrams, service schedules. The second is parts identification: the catalog that resolves a VIN to the exact components fitted, which is the layer this site is about. The third is diagnostic and security access: the ability to talk to control units, clear faults, and program or pair a replacement module.

A workshop can hold one and not the others. Plenty of shops can identify a part precisely and still be unable to code it in, because parts identification and security access are governed separately. Conflating them is why people are surprised when a hard-won access right does not solve the job in front of them.

• Repair and maintenance information: procedures, torques, diagrams
• Parts identification: VIN to exact component, the catalog layer
• Diagnostic and security access: talking to and programming control units

Where the law has actually moved

In the European Union, the long-standing principle is that independent operators must be able to buy repair and maintenance information on a non-discriminatory basis, a requirement carried through the type-approval and emissions rules and reinforced by the block exemption framework that governs motor vehicle distribution and servicing. In 2024 the EU also adopted a directive aimed at promoting the repair of goods more broadly, which pushes in the same direction without rewriting how vehicle data is sold.

In the United States the pressure has been more state-driven, with the Massachusetts vote on access to telematics data becoming the reference point, followed by an industry memorandum between manufacturers and aftermarket associations that set out commitments on access. The picture there is still moving.

What none of this does is make the data free. The consistent principle is non-discriminatory access at reasonable, proportionate terms, which means an independent shop should be able to buy what a franchised dealer can buy. It does not mean the price is nothing, and it does not mean every system is equally open.

This is a summary rather than legal advice, and the details differ by market and by year. Where a specific entitlement matters to your business, the trade association for your country is the practical place to check.

Why access is still uneven in practice

A rule saying data must be available and a workflow that lets a two-person shop use it are different achievements. Several frictions survive the legislation.

Pricing structures are one. Access is often sold by the day, the month or the year per brand, which suits a single-marque specialist and punishes a general repairer who sees eleven badges in a week. Paying eleven subscriptions to service eleven cars is technically available access and practically unusable economics.

Credentialing is another. Security-related functions increasingly require a vetted identity, sometimes tied to a national scheme, sometimes to a manufacturer portal with its own approval queue. That is defensible for immobiliser work. It also becomes a bottleneck when the same gate sits in front of routine operations.

Then there is the software itself: installed applications tied to one machine, region locks, and portals that assume a dealer network account. The data may be purchasable and still arrive in a shape a small business cannot absorb.

What this means for parts identification specifically

Parts identification is the most accessible of the three layers, and it is worth knowing that, because it is the one that most often decides whether a job is quotable at all.

You do not need security credentials to read a catalog. You need the manufacturer parts data resolved against the vehicle in front of you, which is a lookup rather than an intervention. That is why browser-based access to official catalogs solves a real problem for mixed-make shops: it addresses the layer that is legally and technically the least restricted, and it does so without a per-brand installation for every badge that comes through the door.

It does not solve coding, and no honest description should claim otherwise. A workshop that identifies an electronic module correctly still needs the right tool and, on some systems, the right credential to make it work in the car.

The direction of travel

Two trends point opposite ways at once. Vehicles are becoming more software-dependent, which pushes more routine work behind authentication. At the same time regulatory attention on repair is increasing, which pushes access outward. The net result is unlikely to be a single clean resolution.

The practical stance for an independent shop is to treat the three data layers separately, buy access to each on its own terms, and be honest with customers about which jobs the workshop can complete end to end and which need a franchised dealer for one specific step. Customers accept that boundary when it is explained in advance. They do not accept discovering it after the car is apart.