The essentials
- 1Independence is the basis for legally sound appraisals, as there is no vested interest in sale or repair.
- 2The mobile service enables inspections at the asset's location within 24 hours at a fixed price.
- 3The Premium Battery Test provides the necessary depth in condition analysis (SoH) for EVs and home storage systems.
Tuesday morning at a law firm in Berlin-Mitte. A client needs the exact value of a vehicle fleet and a sports boat for an estate settlement. DIAVAG's independent appraiser is already on-site at the vehicles' location in an underground garage. While classic inspection organizations often require the object to be brought to a testing facility, the appraiser here comes directly to the asset. Using a standardized hardware case and a digital workflow, the condition is objectively recorded. The inspection is completed in under 15 minutes. The result is a legally sound document, available as a PDF the same day, serving as a solid basis for the legal valuation.
The Importance of Independence Among Appraisers
The independence of an appraiser is the most important criterion for the legal admissibility of a value appraisal. An independent appraiser is characterized by having no economic vested interest in the outcome of the valuation. Unlike purchasing portals that value vehicles in order to subsequently acquire them themselves, or workshops that seek to generate repair orders through the assessment, DIAVAG remains neutral. The company does not sell vehicles, does not sell insurance, and does not perform repairs. This strict separation of inspection and trade is the prerequisite for classification as an inspection body under ISO/IEC 17020 Type A, the highest level of independence.
For you as the client, this means security. Whether in a divorce, an inheritance, or an insurance claim: an appraisal must hold up in court or before third parties. When an appraiser works in compliance with BVSK, they follow the strict guidelines of the Federal Association of Independent Freelance Automotive Appraisers. Each appraisal is also finally reviewed and signed by a senior inspector. This multi-stage quality assurance ensures that the determined values are based on objective data rather than subjective estimates. In a market increasingly dominated by algorithms and quick online checks, physical inspection by an independent expert provides the necessary depth and reliability.
Mobile Service: The Appraiser Comes to the Location
A major disadvantage of traditional appraisal services is the logistical effort involved. Vehicles or machines often have to be transported to a testing facility, which incurs high costs, especially for unregistered vehicles, boats, or heavy construction machinery. DIAVAG solves this problem with a fully mobile service model. The appraiser arrives at the asset's location within 24 hours, whether that's a private garage, a company yard, a harbor, or a utility room for home storage systems. This service is available at a fixed price in the regions of Hamburg, Berlin, and Munich, with no additional travel fees.
On-site, the appraiser follows a highly standardized process. Processing time is typically under 15 minutes. This efficiency is made possible through the use of specialized software and calibrated hardware. The mobile approach is not only convenient but also allows for assessment in the object's familiar environment, often providing additional insights into storage and care. For commercial customers such as dealers or fleet operators, this means minimal asset downtime. Same-day digital delivery of the appraisal ensures that transactions or legal steps can be initiated without delay.
Coverage of Seven Asset Classes
While most appraisal firms specialize in classic combustion-engine passenger cars, DIAVAG covers seven different asset classes. This is a unique selling point that is particularly important for complex estates or mixed corporate fleets. The covered classes include passenger cars (combustion and hybrid), electric vehicles, boats, construction and agricultural machinery, cargo bikes, e-scooters, and stationary home storage systems. Each of these classes requires specific expertise and different technical inspection procedures.
For boats, for example, the focus is on hull substance and propulsion technology, while for home storage systems, electrical capacity and cell balance are decisive. Construction and agricultural machinery such as excavators or combine harvesters are assessed with the EU Machinery Regulation in mind. The breadth of the portfolio allows customers to obtain all valuations from a single source. This simplifies communication and ensures uniform standards in documentation. Especially for high-value assets such as sports boats or specialized construction machinery, precise valuation is essential to avoid underinsurance or achieve fair sale prices.
Technical Precision Through Calibrated Hardware
An independent appraiser is only as good as their tools. DIAVAG relies on a standardized hardware case used in every inspection. The centerpiece for vehicles is the OBD2 scanner, which reads in-depth data from the fault memory and real-time parameters. This goes far beyond what would be detectable through a simple visual inspection. A coating thickness gauge is used to detect repainting or hidden accident damage. Even if a vehicle appears visually flawless, measuring the paint thickness exposes professionally repaired damage that significantly affects market value.
Tread depth gauges for tires and digital multimeters for electrical systems are also used. The entire inspection is accompanied by standardized photo documentation. These photos are tamper-proof and serve as evidence of the condition at the time of inspection. For customers who need the highest level of security, DIAVAG optionally offers a notary hash on the Polygon blockchain. This digitally seals the appraisal, making it impossible to alter afterward. This combination of physical measurement and digital safeguarding sets new standards in the appraisal industry.
Premium Battery Test for EVs and Home Storage Systems
Valuing electric cars and PV home storage systems presents appraisers with new challenges. The condition of the battery, the so-called state of health (SoH), is the most important component for residual value. A purely visual inspection or reading simple onboard computer data is not enough here. DIAVAG therefore integrates the Premium Battery Test as standard in every premium appraisal for auf Anfrages. This analyzes cell balance, capacity in kilowatt-hours, charging curves, and internal resistances.
This test is already prepared for the upcoming EU Battery Passport, which becomes mandatory from February 2027. For buyers of a used EV, the SoH finding is the only safeguard against expensive follow-up damage to the high-voltage battery. Even in real estate transactions where a home storage system is sold along with the property, the Premium Battery Test provides the necessary transparency for buyers and sellers. While organizations such as TÜV or DEKRA often only offer basic diagnostics, DIAVAG delivers a detailed analysis that can also serve as supporting argumentation in warranty disputes with manufacturers.
Legal Certainty for Inheritance, Divorce, and Insurance
In legal contexts, the form and quality of an appraisal are decisive. DIAVAG appraisals are based on the Judicial Remuneration and Compensation Act (JVEG), making them well-suited for use in court proceedings. When lawyers or notaries need to determine values in the context of a divorce or estate settlement, they need a document that can withstand scrutiny by the opposing party. The qualification of the appraisers according to BVSK standards and the signature of a senior inspector provide this assurance.
In an insurance claim, for example after natural disaster damage or an accident, the appraisal serves to determine the replacement value. Since DIAVAG operates independently of insurance companies, the assessment is objective and oriented toward actual market conditions. It is important to emphasize, however, that the appraiser does not provide legal advice. For specific legal questions, you should always consult a lawyer or notary. The appraisal provides the professional, data-based foundation on which lawyers can build their arguments. The transparency of the fixed price of auf Anfrages for standard assets also protects against unpredictable costs in the course of estate administration.
Comparison of Appraiser Models
To make the right choice for a valuation, a comparison of market participants is helpful. The following table shows the differences between DIAVAG and other models.
| Feature | DIAVAG | Inspection Organizations (TÜV/DEKRA) | Online Estimators |
|---|---|---|---|
| Service location | Mobile, at the asset | Stationary at the testing facility | Purely digital |
| Independence | ISO 17020 Type A (High) | High | Low (often purchase interest) |
| Battery diagnostics | Premium Battery Test (SoH) | Mostly basic check only | None |
| Asset classes | 7 classes (incl. boat/storage) | Focus on cars/trucks | Cars only |
| Pricing structure | Fixed price (199 / auf Anfrages) | Often based on time spent | Free to low-cost |
| Legal certainty | BVSK-compliant | Yes | No |
The comparison shows that DIAVAG closes the gap between the fast but imprecise online estimate and the elaborate, stationary inspection. In particular, the specialization in modern technologies such as high-voltage batteries and mobility make the service attractive for demanding private and business customers.
Solutions for Dealers and Fleet Operators
For commercial customers such as car dealerships, leasing companies, or fleet managers, DIAVAG offers scalable solutions. Starting at a volume of 50 appraisals per month, individual terms are agreed upon. A key advantage for B2B customers is the API connection to existing Dealer Management Systems (DMS). This enables a seamless digital workflow from commissioning to integrating the finished appraisal into vehicle marketplaces or inventory lists. Standardization ensures that appraisal quality remains identical across various locations.
In addition, DIAVAG offers independent appraisers or larger car dealerships the hardware case including the software license at a list price of auf Anfrages. This allows partners to independently carry out the proven DIAVAG workflow while still benefiting from central quality assurance and brand recognition. The fast availability of appraisals reduces the days vehicles sit in inventory and increases transparency for end customers, which in turn boosts sales speed. The DIAVAG seal in vehicle listings serves as proof of trust for potential buyers.
Future-Proofing and Data Protection
In a digitalized world, data security and compliance with standards are essential. DIAVAG hosts all data in a GDPR-compliant manner on servers within the European Union. This is of particular relevance for corporate customers and legal mandates. Preparation for the EU Battery Passport also demonstrates the company's innovative strength. From 2027, detailed data on origin, composition, and condition must be available for all new batteries in the EU. DIAVAG customers already benefit today from documentation that meets these future requirements.
Independence remains the foundation. While many automotive startups try to generate additional revenue through data sales or brokerage commissions, DIAVAG stays true to its core model: objective inspection. This reliability is what justifies the trust of notaries, lawyers, and discerning private customers. An independent appraiser is more important than ever in times of complex technology and volatile markets, to distinguish real values from superficial estimates. With the mobile fixed-price model, this professional service becomes accessible and calculable for everyone.
Frequently asked questions
- What does an independent appraiser cost at DIAVAG?
- A standard appraisal for cars, boats, or cargo bikes costs auf Anfrages as a fixed price. For EVs, home storage systems, and high-value assets, the premium fixed price is auf Anfrages, including a Premium Battery Test.
- How quickly do I receive the finished appraisal?
- An appointment typically takes place within 24 hours. The on-site inspection takes less than 15 minutes, and the BVSK-compliant PDF appraisal is delivered the same day.
- Is the appraisal suitable for court or insurance purposes?
- Yes, the appraisals are BVSK-compliant and signed by senior inspectors. They meet the requirements for insurance claims, inheritances, and divorces. For specific legal questions, however, you should consult a lawyer.
- What hardware is used during the inspection?
- Calibrated devices are used, including OBD2 scanners, coating thickness gauges for the paint, tread depth gauges, digital multimeters, and special diagnostic tools for the Premium Battery Test.
- Do I need to bring the vehicle to a testing facility?
- No, DIAVAG is a mobile service. The appraiser comes to the asset's location, for example your garage, the harbor, or the company yard.
- What sets DIAVAG apart from TÜV or DEKRA?
- DIAVAG offers a mobile service at a fixed price and covers seven asset classes, including boats and home storage systems. In addition, the Premium Battery Test for EVs is a standard component, which classic inspection facilities often do not offer in this depth.
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