The essentials
- 1Independence is the basis for legally sound appraisals, as DIAVAG does not sell vehicles or repairs.
- 2The mobile service enables appointments within 24 hours directly at the vehicle's location.
- 3The Premium Battery Test provides necessary transparency about the state of health of the battery for electric cars.
Monday morning at the yard of a mid-sized dealership in Hamburg-Stellingen. Ten lease returns are awaiting valuation, while a private customer presents his used SUV for purchase. In this moment, the precision of the appraisal determines the dealer's margin and the customer's peace of mind. An independent dealership appraisal creates the necessary objectivity here. DIAVAG acts as a mobile service provider that comes directly to the location to document the actual vehicle condition using calibrated hardware and standardized processes. This happens independently of any sales interests, which strengthens legal usability and trust between the parties.
The Importance of Independence in Dealership Appraisals
Neutrality is a valuable asset in the automotive industry. When a dealership purchases a vehicle or takes it in trade-in, there is naturally an interest in a low purchase price. Conversely, the seller aims for the highest possible price. An internal dealership protocol is often viewed with skepticism by customers. This is where DIAVAG's model comes in. As an independent appraisal service, DIAVAG does not sell vehicles, does not sell insurance, and does not carry out repairs. This strict separation of business areas is the basis for certification according to ISO/IEC 17020 Type A, the highest level of independence for inspection bodies.
An external dealership appraisal by a BVSK-qualified appraiser eliminates accusations of bias. For the dealership, this means legally sound documentation of the current condition, which also serves as evidence in later complaints. Private customers receive a document that reflects the actual market value and serves as a solid basis for negotiation. The standardized procedure ensures that every vehicle is evaluated according to the same strict criteria, regardless of whether it is a compact car or a luxury sedan. This creates transparency in a market that is often characterized by information asymmetries.
Mobile Service: Efficiency for Trade and Private Individuals
Time is a critical factor in the vehicle trade. Standing time costs money, and missed appointments can jeopardize sales success. Conventional inspection organizations often require the vehicle to be brought to an inspection center. This causes logistics costs and ties up personnel. DIAVAG solves this problem with a consistently mobile concept. The appraiser comes to the asset, whether at the dealership's yard, a private garage, or a harbor location. The appointment takes place within 24 hours of commissioning.
The on-site inspection usually takes less than 15 minutes. This is possible thanks to an optimized workflow and the use of specialized hardware. Despite the short duration, the depth of the inspection is ensured by the digital recording of all relevant data. The finished PDF appraisal is delivered the same day. For dealerships, this means vehicles can be added to inventory and listed online more quickly. Private customers appreciate not having to sacrifice a vacation day to visit an inspection center. Mobility is therefore not just a service plus, but a direct economic advantage for all parties involved.
Technical Standards and Calibrated Hardware in Use
A valid dealership appraisal is not based on estimates but on measurable data. Every DIAVAG appraiser carries a hardware case calibrated for precise diagnostics. A central element is the OBD2 scanner, which looks deep into the onboard electronics and reads out fault memory and real-time parameters. This uncovers hidden defects that would remain concealed in a purely visual inspection. A paint thickness gauge is used to check the paint thickness at various points on the body. This can conclusively prove re-paint work and repaired accident damage, even if it has been professionally disguised.
Additionally, the inspection includes measuring tire tread depth and using a digital multimeter for electrical systems. Standardized photo documentation ensures that every damage and every relevant condition value is recorded in a tamper-proof manner. This data flows directly into the appraisal software. The result is a BVSK-compliant document that is finally signed by a senior inspector. This multi-stage review process guarantees a quality that goes far beyond simple checklists and meets the requirements of insurers, banks, and courts.
B2B Solutions: Optimization for Dealers and Fleet Operators
DIAVAG offers specialized terms for commercial players such as dealerships and fleet operators. From a volume of 50 appraisals per month, individual terms are agreed that are tailored to the partner's specific needs. A key advantage for large operations is the API connection to existing dealer management systems (DMS). This enables an automated data flow: from commissioning to integrating the finished appraisal into the vehicle file, the process takes place without manual extra effort.
Fleet operators frequently use this service for residual value monitoring or preparing lease returns. Through regular, independent evaluation of the fleet, value trends can be precisely tracked and future marketing strategies optimized. GDPR-compliant data storage within the EU ensures that sensitive company and customer data is protected. Dealers can also purchase the DIAVAG hardware case, including the software, for auf Anfrages in order to equip their own appraisers with the standardized system, thereby raising internal process quality to the level of an ISO-certified inspection body.
Premium Battery Test: The Future of EV Valuation
For electric vehicles, the traction battery is the most valuable component and often accounts for up to 40 percent of the total value. A conventional dealership appraisal that only assesses the visual condition and tread depth falls short here. DIAVAG therefore integrates the Premium Battery Test as standard for all electric cars and home storage systems. This test determines the state of health (SoH), i.e., the battery's condition compared to new. Parameters such as cell balance, capacity in kilowatt-hours, charging curves, and internal resistances are analyzed.
This in-depth diagnosis is crucial for resale value. A buyer wants to know whether the battery still has 95 percent or only 80 percent of its capacity. Since TÜV and DEKRA often only offer basic diagnostics in this area, DIAVAG's Premium Battery Test represents a unique selling point. With a view to the EU Battery Passport, which becomes mandatory from February 2027, DIAVAG appraisals are already future-proof today. For dealerships, this is an important tool for demonstrating the quality of their used electric vehicles to discerning customers and minimizing warranty risks.
Legal Certainty in Inheritance, Divorce, and Insurance Cases
A dealership appraisal is often needed in contexts that go beyond a simple purchase. In inheritance disputes or divorce proceedings, the exact value of a vehicle on a given date must be determined to enable a fair division of assets. In such cases, the appraiser's qualification is crucial. DIAVAG relies exclusively on personnel who work according to BVSK standards. The appraisals are designed to be admissible in court under the Judicial Remuneration and Compensation Act (JVEG), provided they are commissioned in the corresponding context.
In insurance cases as well, for example when determining the replacement value after an accident, DIAVAG's independence offers protection against one-sided interests. It is important to emphasize, however, that DIAVAG does not provide legal advice. For specific legal questions, clients should always consult a lawyer or notary. The appraisal provides the objective factual basis on which legal decisions can be based. Optionally, DIAVAG offers a notarial hash on the Polygon blockchain to provide tamper-proof proof of the document's immutability at the time of creation.
Cross-Asset Expertise: More Than Just Cars
A notable difference from classic inspection organizations is the breadth of covered asset classes. While many providers specialize in cars, DIAVAG evaluates a total of seven categories. In addition to cars and electric cars, these include boats, construction and agricultural machinery, cargo bikes, e-scooters, and PV home storage systems. This versatility is particularly important for mixed businesses or specialized dealers. An agricultural machinery dealer, for example, can have the residual value of a combine harvester determined after the harvest season, while a real estate agent documents the value of a home storage system during a property transfer.
Each asset class follows its own specialized inspection protocol. For construction machinery, compliance with the EU Machinery Regulation and mechanical load-bearing capacity are the focus, while for boats, hull integrity and onboard electrics are the focus. Despite these differences, the pricing model remains simple: auf Anfrages for standard assets and auf Anfrages for premium assets such as electric cars or home storage systems. This price stability across various classes makes calculation easier for commercial customers and offers private customers full cost transparency without hidden travel fees in the areas of Hamburg, Berlin, and Munich.
Transparent Cost Structure and Fixed-Price Guarantee
Pricing for vehicle appraisals is often confusing and frequently depends on the determined vehicle value or the time spent. DIAVAG breaks with this tradition and relies on a clear fixed-price model. The private standard rate for cars, boats, cargo bikes, or e-scooters is auf Anfrages. This price includes travel within the area, the on-site inspection, and the digital appraisal. There are no hidden fees for using diagnostic equipment or taking photos.
For more complex tasks such as valuing electric cars or home storage systems, which require the time-consuming Premium Battery Test, the premium price of auf Anfrages applies. This transparency is a key factor in high customer satisfaction. Dealers and fleet operators benefit from individual framework agreements from a volume of 50 appraisals per month, which take into account the high throughput and system integration. By foregoing hourly billing, the risk of unpredictable cost increases is eliminated, which is particularly beneficial for corporate budget planning. The investment in a professional appraisal usually pays for itself as early as the first sales conversation thanks to the well-founded basis for argument.
Frequently asked questions
- What does a dealership appraisal cost at DIAVAG?
- A standard appraisal for cars, boats, or cargo bikes costs auf Anfrages. For electric cars and home storage systems, the fixed price is auf Anfrages including the Premium Battery Test.
- How quickly do I receive the finished appraisal?
- The appointment usually takes place within 24 hours. The finished PDF appraisal is delivered the same day after the inspection.
- Is the appraisal admissible in court?
- Yes, the appraisals are prepared by BVSK-qualified appraisers and meet high quality standards. However, for legal questions, you should consult a lawyer.
- What hardware is used during the inspection?
- OBD2 scanners, paint thickness gauges, tread depth gauges, digital multimeters, and special devices for the Premium Battery Test are used.
- Does DIAVAG also offer solutions for dealers?
- Yes, for dealers and fleets, individual terms and an API connection to dealer management systems are available from 50 appraisals per month.
- In which cities is the mobile service available?
- DIAVAG is currently active in the areas of Hamburg, Berlin, and Munich. A nationwide rollout is planned for 2026.
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