Automatic Weigh-in-Motion (WIM) systems

In 2026, Austria boasts one of the densest networks of WIM (Weigh-in-Motion) systems in Europe. These are pre-selection scales embedded in the surface of motorways (A1, A2, A10, A12, A13) that weigh vehicles without the need for them to stop.

These systems work with OCR cameras that read the registration number. If the scale detects an exceeding of the permissible gross vehicle weight (DMC), the information is immediately transmitted to the nearest Service- und Kontrolldienst (SKD) patrol or motorway police, who direct the vehicle to a parking area for precise weighing on a stationary scale.

Permissible Gross Vehicle Weight (DMC) and error tolerance

The primary parameter is the DMC entered in the vehicle registration document (field F.2). For most tourists and transport companies operating "vans", the key barrier is 3500 kg.

In Austria, unlike some other EU countries, the error tolerance is minimal. While the measurement error of the scale (usually about 2-3%) is deducted in favor of the driver, exceeding the actual weight by 100 kg above the 3.5t limit is already grounds for imposing a penalty.

When planning your route, it is worth remembering not only the weight, but also the tolls. If your vehicle exceeds 3.5t (e.g., a heavy camper van), a vignette is not enough – a GO-Box system is required. You can read more about this in our article on road regulations in Austria.

Fines for overloading in Austria – Table 2026

In 2026, fine rates have been revalued. The penalty is usually imposed on both the driver and the vehicle owner (carrier).

Overloaded van up to 3.5t – a trap for "light" transports

The transport segment up to 3.5 tons (so-called vans/expresses) is under particular scrutiny by Austrian authorities. It often happens that a vehicle with international bodywork (sleeper cab, lift, 100l fuel tank) has an unladen weight close to 2800 kg, which leaves only 700 kg of real payload capacity.

What happens during a check?
1. Order to proceed to a stationary scale.
2. Weighing of each axle separately and the total weight.
3. If the weight exceeds 3500 kg (after deducting tolerance), the driver receives a prohibition of further travel.
4. Vehicle documents may be withheld until a second vehicle is provided and the excess goods are unloaded.

The cost of such an operation (renting a second vehicle in Austria, transshipment, fine) often exceeds 2000-3000 Euro. This is why it is so important to have a valid vignette for Austria and to observe weight limits.

Service- und Kontrolldienst (SKD) – who are the inspectors?

Many drivers confuse them with the police. ASFINAG officers (SKD) are authorized to stop vehicles to check road tolls and vehicle weight. Their white and blue vans with 'FOLGEN' (Follow me) light boards are visible on every major route.

SKD not only checks if you have a vignette for Hungary (if you are crossing a border zone) or Austria, but also inspects the technical condition of tires and lighting, which, combined with weight, ensures safety in the mountains.

Safety in the Alps and vehicle weight

Austria places great emphasis on weight due to its terrain. An overloaded vehicle descending the Brenner Pass (A13 motorway) poses a deadly threat. Brakes in a vehicle weighing 4500 kg (registered for 3500 kg) overheat extremely quickly, leading to their complete failure.

When traveling in winter, remember the additional load – snow chains, a full fuel tank, and a roof box can add up to 100-150 kg to the vehicle's weight. Check our tips on winter tires in Europe to be prepared for all conditions.

Frequently Asked Questions (FAQ)