Diminished value after an accident
Sanden/Danner formula · BGH case law · typical values €500–€2,500
Direct Answer · §249 BGB · BGH VI ZR 357/03
Rule-of-thumb table by vehicle age
| Age | Factor | Example calculation |
|---|---|---|
| 1st year | 25 % | €10,000 repair → €2,500 diminished value |
| 2nd year | 20 % | €10,000 repair → €2,000 diminished value |
| 3rd year | 15 % | €10,000 repair → €1,500 diminished value |
| 4th year | 10 % | €10,000 repair → €1,000 diminished value |
| from year 5 | Case by case | Depends on mileage & market value |
Rule of thumb for orientation. Exact calculation using the Sanden/Danner formula by a certified expert (Sachverständiger) — accounts for mileage, market value, pre-existing damage, and repair quality.
Sanden/Danner formula — how is it calculated exactly?
Insurance denies the diminished value claim — what now?
Direct Answer · BGH VI ZR 357/03
Special cases
Tesla / electric vehicle
Diminished value often 2–3× higher than the standard framework. Buyer concerns about the battery persist even when the pack is undamaged. Only specialist appraisers can capture the full amount.
Classic car (30+ years)
Diminished value calculated against collector's market value. Repair quality is critical — original parts, certificates, provenance. An appraiser with classic-car expertise is essential.
Leasing / financing
For leased vehicles, the diminished value claim generally passes to the leasing bank. For financed vehicles, it remains with you. The precise contract terms are decisive.
Frequently asked questions about diminished value
What is diminished value?
Diminished value is the loss in value of a repaired accident vehicle compared to an accident-free equivalent — even after a perfect repair. Buyers pay less for accident-damaged cars; that is market reality. Compensation under §249 BGB covers precisely this difference. Without an expert report it cannot be calculated, and the insurance company will therefore not pay it.
How is diminished value calculated in practice?
In Germany using the Sanden/Danner formula or variations thereof (Halbgewachs, BVSK method). Input variables: repair costs, replacement value, vehicle age, mileage, pre-existing damage, market conditions. A rough starting point: 25% of repair costs in year 1, decreasing by 5% per year thereafter. The precise calculation is done by the expert appraiser.
Can I claim diminished value on a 10-year-old vehicle?
Possibly, provided the vehicle still has a relevant market value. The BGH (VI ZR 357/03) rejects a rigid age cut-off. The OLG Oldenburg has even awarded diminished value at 200,000 km mileage. The decisive question: is the vehicle still sellable on the market, and do buyers apply an accident-damage discount? On older vehicles the diminished value may be modest (€200–€500), but the claim exists.
Why does the insurance company deny diminished value?
Standard tactic: "No longer applicable for your vehicle" or "included in the repair price." Both are usually incorrect. Without an expert report on diminished value you have no basis for your claim — the insurance company simply pays nothing. With an expert report and a lawyer, the partner law firm recovers the diminished value as a rule. If disputed, the law firm litigates.
How high is diminished value for a Tesla or other electric vehicle?
For electric vehicles often SIGNIFICANTLY higher than the standard formula produces. Reason: buyers have concerns about battery damage even when the battery is unaffected. Practical example — Tesla Model 3: repair costs €18,000 → realistic diminished value €4,000 instead of the €1,800 yielded by standard Sanden/Danner. Specialist appraisers are essential here.
Secure your diminished value claim
Without an expert report the diminished value is lost. We calculate it and recover it for you.