Maximilian Fromm, independent vehicle expert at CleverCrash, in front of the service vehicle
Maximilian FrommIndependent vehicle expert, CleverCrash Erlangen

Key points at a glance

  • Four findingsAn independent vehicle expert determines the extent of damage, amount of damage, cause and plausibility. These four points are connected.
  • Inspection with a fixed routineA damage inspection usually takes 30 to 45 minutes for typical damage. This includes photos, paint thickness measurement and separating new damage from earlier damage.
  • Every item in the report has a functionFrom the damage description through repair cost calculation, replacement value and residual value to downtime: if an item is left out, the other items become less meaningful.
  • The task has clear limitsWhether you have a claim and how large it is must be checked by a law firm for traffic law. The assessment is separate from the repair.
  • The job title is not protected by lawThat is why training, professional association, knowledge examination, measuring technology and transparency about the process count.
Basics

What an independent vehicle expert determines at the core

Four questions are at the center of every inspection. They repeat in every case, no matter the vehicle type or the amount of damage.

  • Damage extentwhich parts are affected and whether a repair or a replacement makes technical sense
  • Amount of damagethe repair costs according to manufacturer specifications. If needed, also: the diminished value (Wertminderung, the loss in value despite repair), the replacement value (Wiederbeschaffungswert, the price of a comparable vehicle) and the residual value (Restwert, the sales value in the damaged condition)
  • Causewhether the damage pattern fits the accident as described
  • Plausibilitywhether old damage (Altschäden), prior damage (Vorschäden) or later additions distort the findings

These four points belong together. If you state the amount of damage without checking the cause, you cannot judge it reliably. If you only describe the extent without checking plausibility, you do not produce a reliable report.

Practice

The inspection process, step by step

In practice, what happens at the vehicle follows a fixed pattern. The order can vary, but the individual steps hardly change. The damage inspection takes 30 to 45 minutes for typical damage.

1

Documents and first conversation

The vehicle expert compares the vehicle registration certificate (Fahrzeugschein), the registration data and the account of the accident that you give. After that, the damage inspection begins.

2

All-around photos

The expert photographs the whole vehicle, including areas without visible damage. These photos serve as a reference for later questions.

3

Detail photos of the damage area

The expert photographs the damage area from fixed angles and as a close-up with a scale. The expert measures the contact marks with the measuring rod.

4

Technical check

The expert measures paint thickness and impact height. If hidden damage is suspected, the expert uses the vehicle lift or reads out the stored fault codes.

5

Separating old damage and prior damage

The expert separates older damage and damage that was already repaired from the current damage pattern. The expert names each of these damages separately.

6

Final conversation

The expert answers open questions about how the accident happened and about the next steps directly at the vehicle.

Technology

Which measuring tools stand behind the inspection

An estimate by eye does not support a reliable report. The following tools provide the numbers that appear later in the repair cost calculation.

  • Impact heightMeasuring rod and folding ruler: contact points on the vehicle are measured to the centimeter and compared with the accident as described.
  • Paint measurementA paint thickness gauge that uses the eddy current method measures the paint thickness in micrometers. Differences show an earlier repair or repaint, even when the color looks the same.
  • Repair costsLabor time units (Arbeitswerte), parts prices and paint times are entered in calculation software such as Audatex or DAT, based on manufacturer specifications. They are not estimated.
  • ElectronicsIf driver assistance systems or airbags are involved, the stored fault codes are read out to find hidden follow-up damage.
  • Photo evidencePhoto documentation by a fixed scheme: from the front, from the side, at a 45-degree angle and as a detail with a scale. A single photo without a reference size proves little.
  • UnderbodyFrame, axle mounts and longitudinal members can only be seen fully when the car is lifted. From below you can see distortion that stays invisible from above.
The document

What a report contains and why

A report is not a text document with photos attached. Every item has a function. If one item is missing, the other items become weaker.

  • Vehicle and registered keeper (Halter) datalink the report clearly to one vehicle and one point in time
  • Damage description with photo evidencemakes the findings understandable for third parties, even if they have not seen the vehicle
  • Repair method and calculationexplains why a part is repaired instead of replaced, or the other way round
  • Replacement value and residual valueset the limit above which a repair no longer makes economic sense
  • Diminished valueshows the loss in value that remains for an accident vehicle even after a professional repair
  • Downtimestates the period in which the vehicle cannot actually be used
  • Separating prior damageseparates what belongs to the current event from what was already there before
  • Plausibility statementthe technical opinion on whether the damage pattern and the accident as described fit together
You can request a report after an accident directly from usCall us at 09131 91 66 143 or report the damage online. The initial assessment is free.
Classification

Vehicle expert, calculation, reviewer and inspection organization

Around a vehicle there are several roles. They sound similar, but they have different tasks.

Repair shop

A repair shop estimates the costs of the repair that it would do itself. Diminished value, residual value and downtime are left out. The repair shop also has its own interest in getting the order.

Insurer

A reviewer who works for the insurer mainly checks the calculation of the other party. The reviewer acts in the interest of the person who hired them.

Publicly appointed and sworn expert (Ö.b.u.v.)

The Chamber of Industry and Commerce (Industrie- und Handelskammer) appoints a publicly appointed and sworn expert after a separate examination. The findings of this expert have special importance in court. This applies often in disputed cases and court cases.

Periodic vehicle inspection (Hauptuntersuchung)

The vehicle inspection organization under § 29 StVZO, such as TÜV, DEKRA or GTÜ, checks at a fixed date whether a vehicle is safe to drive and meets the legal rules. It does not assess damage there.

Interim summary

Four findings, no negotiation

Damage extent, amount of damage, cause and plausibility: this is what a vehicle expert determines. The next section shows what the expert explicitly does not do.

The limit

What a vehicle expert explicitly does not do

The task ends at a clear point. What comes after that belongs in other hands.

No legal adviceWhether a claim exists and how high it is, is a legal question. It belongs with a traffic law firm, not in a technical report.
No negotiation with the other partyA report provides the technical basis. The person who presents it to the insurer is the person whose car was damaged, or their law firm.
No repairThe assessment is separate from the work on the car. Someone who assesses and repairs the same car is no longer independent.
Guidance

How to judge the qualifications of an office

In Germany the job title is not protected by law. Anyone can call themselves a vehicle expert without proving any specific training. For this reason the following features are the real standard, not the title itself.

  • Technical traininga technical background as a master craftsman, technician or engineer shows what the assessment is based on
  • Membership in a professional associationassociations such as the SFV e.V. (Sachverständigenfachverband, a German association of vehicle experts) or the VDI (Association of German Engineers) set their own admission criteria
  • Proven knowledge examinationa passed examination at an independent body says more than a title that people give themselves
  • Own measuring equipmentan office that can name a paint thickness gauge, a vehicle lift or calculation software does not work by eye
  • Transparency about the processyou can judge an office before you hire it, if it states the process, the time frame and who is responsible for what

You can find out how to check these features against a specific offer on the page Choosing a vehicle expert.

This page describes the profession in general. How an inspection works with us is explained on the page Damage report. The difference between a repair estimate (Kostenvoranschlag) and a full report is explained on the page Repair estimate or vehicle expert report. The page Report review and expert statement explains how we check an item from a reduction letter (Kürzungsschreiben) from a technical point of view. We work in the whole Nuremberg Metropolitan Region.

Frequently asked questions about the profession

Report

What does a vehicle expert determine after an accident?

The expert documents the damage extent and calculates the repair costs according to manufacturer specifications. If needed, the expert also determines the replacement value, the residual value and the diminished value. The expert also checks whether the damage pattern fits the accident as described. These findings come together in one report. It serves as the technical basis for further handling of the case. Without this check, every cost figure stays an estimate.

How does a vehicle expert differ from a repair shop calculation?

A repair shop estimates the costs of the repair that it would do itself, and it has its own interest in that. A vehicle expert assesses separately from the repair. The expert also documents diminished value, residual value and downtime, and separates old damage from new damage. A feature you can check: a calculation without these three items is not a report.

What does a publicly appointed and sworn expert do differently?

The Chamber of Industry and Commerce makes the appointment after a separate technical examination. Courts see their findings as especially reliable. For this reason they are often asked to work on disputed cases or court cases. An independent vehicle expert without this appointment can do work of equal technical quality, but does not have this formal status.

Which measuring devices are typically used in an inspection?

Common tools are a measuring rod or folding ruler for impact heights, a paint thickness gauge that uses the eddy current method and calculation software such as Audatex or DAT for the repair costs. If hidden damage is suspected, a vehicle lift adds a visual check from below. If electronics are involved, a diagnostic device for the fault codes is added.

What is the difference between an inspection by an expert and the periodic inspection under § 29 StVZO?

The periodic inspection at TÜV, DEKRA or GTÜ checks at a fixed date whether a vehicle is safe to drive and meets the legal rules. It does not assess accident damage. The two checks complement each other, but neither replaces the other.

Can I, as a non-expert, follow the calculation in the report?

In principle, yes, if labor time units, parts prices and paint times are listed one by one and not only as a final total. A good report also explains why a part was repaired instead of replaced. If questions remain, the next step is to ask the office that wrote the report. Do not simply accept the number.

Your rights

Does a vehicle expert also check whether I am entitled to compensation for damages?

No. That is a legal question and belongs with a traffic law firm. The expert provides the technical and calculation basis, meaning the amount of damage and the plausibility. Whether a claim arises from this, and how high it is, is decided on the legal level, not in the report itself.

Process

How long does a vehicle inspection take?

The damage inspection takes 30 to 45 minutes for typical damage. It takes longer if an inspection on the vehicle lift, a detailed paint measurement or a check of the calibration of driver assistance systems is added. The duration is not the deciding point. What matters is whether all items are properly documented at the end.

Contact

Damage to your vehicle? We will take a look.

Erlangen, Nuremberg, Fürth and the Nuremberg Metropolitan Region. We usually inspect your vehicle on the same business day or the next one.

CleverCrash is an office of independent vehicle experts, not a law firm. This page gives current technical information and does not replace advice for your individual case. For legal questions, please contact a traffic law firm.

Maximilian Fromm, independent vehicle expert at CleverCrash

Maximilian Fromm

Independent vehicle expert, B.Sc. in Mechatronics

Maximilian Fromm is an independent vehicle expert and the founder of CleverCrash in Erlangen. He studied mechatronics. Since August 2025, he has written damage reports (Unfallgutachten) for private customers, repair shops and lawyers in the Nuremberg Metropolitan Region. He supports his customers until the insurer pays out.