MPU - medical-psychological assessment
Preparing for the medical-psychological report
What to expect in this article
A structured overview of the MPU (medical-psychological assessment): reasons, procedure, requirements, abstinence and costs.
- Reasons for an MPU Ordered e.g. for alcohol, drugs/medication, points or criminal offences.
- Procedure of the assessment What happens on the day – from registration to the end.
- Medical part Health check, medical history and medical assessment.
- Performance & reaction tests Computer-based tests of reaction, concentration and resilience.
- Psychological interview Background, causes and comprehensible changes.
- Preparation & typical mistakes What matters – and which pitfalls frequently cause problems.
- Abstinence & proofs Periods (6/12/15 months) and methods (urine, hair, PEth for alcohol).
- Costs & planning Typical cost factors: fees, proofs, assessment and, if applicable, preparation.
MPU – basics, procedure and important notes
The MPU (medical-psychological assessment) is a legally regulated assessment procedure for checking fitness to drive. It assesses whether a person is physically, mentally and in character suited to drive a motor vehicle safely in road traffic. An MPU is ordered when there are doubts about fitness to drive.
In everyday language, the MPU (medical-psychological assessment) is often known as the so-called “idiot test”. However, this name does not do the assessment justice. The MPU is a complex, multi-stage assessment procedure that goes far beyond simple knowledge or reaction tests and requires a well-founded examination of your own behaviour.
The medical-psychological assessment checks whether physical, mental and character-related fitness to drive is given. It concerns people who have attracted significant attention in road traffic – for example through drink- or drug-driving, a high number of points or serious traffic offences.
This overview of the MPU is intended to summarise the most important basics in an understandable way. Where appropriate, it refers to further pages that cover individual topics such as procedure, reasons or preparation in more depth.

Introduction
This article first explains the reasons and causes that can lead to an MPU being ordered. It then explains how a medical-psychological assessment works and which components it includes.
It also shows what to pay attention to during the MPU in order to avoid typical mistakes that can lead to a negative report. The aim is to give a structured overview and to present the individual steps of the assessment comprehensibly.
Preparing for the medical-psychological report
Anyone who has to undergo an MPU inevitably asks under what conditions a positive report is issued. A positive result is no coincidence; it requires a serious examination of the causes of the offences and comprehensible changes.
The following explains which personal requirements must be met and which steps help to meet the requirements of the medical-psychological assessment and avoid typical mistakes.
Good to know
The outcome of a medical-psychological assessment depends largely on how well the underlying problem areas have been understood and worked through. Structured preparation helps to assess the requirements realistically and avoid typical mistakes.
Abstinence
The topic of abstinence is also covered. In the MPU, it is of central importance whether proof of abstinence is required and over what period it must be provided. Depending on the offence, consumption pattern and individual history, 6, 12 or in certain cases even 15 months of abstinence may be required.
It explains the criteria by which the duration of abstinence is determined and which methods of proof are recognised in connection with the medical-psychological assessment.
Costs of an MPU
Anyone who looks more closely at the topic of the MPU quickly realises that various costs can arise in connection with the assessment. These include official fees, possible fines, costs for proof of abstinence and expenses for preparation and assessment.
For many people, these expenses are a considerable burden and often lead them to postpone the MPU at first. This section explains which costs typically arise, how they are made up and where there is potential for savings without falling short of the requirements of the medical-psychological assessment.
Your questions about the medical-psychological assessment
It is important that you prepare professionally and individually. In a free initial consultation we can answer your questions about the medical-psychological assessment.
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Who has to undergo an MPU?
An MPU must be completed by people whose fitness to drive is doubted by the driving licence authority. This concerns, among other things, drink- or drug-driving, a high number of points in the driving aptitude register or serious traffic offences. The aim is to assess future driving behaviour.
People often find the medical-psychological assessment very stressful and sometimes perceive it as excessively strict. However, the aim of the MPU is not harassment but to check fitness to drive and to assess whether responsible behaviour in road traffic can be expected in future.
The MPU report offers the opportunity to examine your own misconduct in a structured and critical way. On this basis, causes can be identified and lasting changes initiated, which can affect not only driving behaviour but also private, professional and personal areas.
What such an in-depth examination can look like as part of preparation is explained in more detail in the section on the procedure and content of MPU counselling.
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When is an MPU ordered?
An MPU is ordered when the driving licence authority has justified doubts about fitness to drive. Typical reasons are repeated alcohol consumption in road traffic, drug use, reaching eight points in Flensburg or serious criminal offences related to traffic.
An MPU is not ordered by the authorities without reason. As a rule, an MPU is ordered for the following offences.
- From a blood alcohol level of 1.6 per mille or repeated driving under the influence of alcohol
- Drug use or possession of drugs and/or misuse of medication
- 8 points in Flensburg
- Serious criminal offences
40% of all MPUs take place because of alcohol misuse
According to the Federal Highway Research Institute (BASt), alcohol remains the most common reason for an MPU and accounts for around 40 per cent of all assessments. Drugs and medication follow with around 31 per cent, while traffic-related offences take third place with 18 per cent.
In 2019, a total of 86,177 people were assessed. Of these, around 57 per cent received a positive report. About 38 per cent of those examined were classified as not fit and did not get their driving licence back for the time being. In around 5 per cent of cases, participation in a course to restore fitness to drive was recommended.
The statistical evaluations make it clear that an insufficient examination of the causes of the offences in particular is a frequent reason for a negative report. Missing or unstructured preparation increases the risk of not meeting the requirements of the medical-psychological assessment.
The three parts of the MPU
The medical-psychological assessment usually takes about three to four hours. It consists of the medical examination, performance and reaction tests and the psychological interview.
Medical examination:
In the medical part of the assessment, your general state of health is examined, e.g. reflexes, heart function and mobility. If you have known illnesses, you should find out in detail before your medical-psychological assessment whether the illness affects your fitness to drive. You will also be asked about any medication you take.
Reaction and performance tests:
The reaction and performance tests check, among other things, your resilience, your reaction and your ability to concentrate. The tests are carried out on a computer and are not a problem for most people. However, the tests are necessary to check whether you meet all the requirements for driving a motor vehicle. Even if you do not pass the reaction and performance tests, you have not failed straight away. There is still the possibility of establishing, through a so-called driving behaviour observation, whether you meet the requirements for driving a vehicle safely. For this, you drive a set route in road traffic with an assessor and a driving instructor.

Psychological assessment interview:
The biggest hurdle is the psychological interview. The conversation with the psychological assessor is detailed and can become intimate, which many people are not prepared for. In this part of the assessment you are asked in detail about the background and causes of your offences. The assessor wants to know what you have changed in order to reliably avoid offences in future. Under MPU questions you will find typical questions you have to answer to the psychological assessor.

How does an MPU work?
On the day of your assessment, you register at the officially recognised assessment centre by presenting your identity card (list of all assessment centres). You are then given various questionnaires to fill in first. The questionnaires contain questions about your driving licence and your personal circumstances. Various medical questions are also asked.
The questionnaires are later presented to the psychological assessor and the doctor.
On the day of your medical-psychological assessment, all relevant documents relating to psychological and medical preparation (for example proofs of abstinence, a certificate of your preparation or similar) should be available. The documents should be presented to the assessor. If necessary, all documents can also be submitted later. This is ALWAYS possible.

Things to keep in mind during your MPU
- Arrive well rested so that you do well in the performance tests and can perform at your best in the interview
- Of course you should arrive completely sober (no drugs, no alcohol and no other substances)
- You should definitely behave cooperatively during your MPU. In addition, a cooperative attitude towards the assessment is more than sensible.
- Arrive on time for your appointment
- Assessment centres for fitness to drive are often very busy, so please expect longer waiting times
- Be sure to avoid doubts about the lawfulness of your MPU, accusations against the police, the judiciary or other authorities, and justifying your own misconduct with the shortcomings of others.
- If there are language difficulties, bring an interpreter
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How do I pass my MPU?
Everyone wants to pass their MPU at the first attempt. Nobody wants to hold a negative report in their hands and continue to do without their mobility. The professional and private consequences of not passing the MPU are often serious. The MPU costs also keep rising if you do not pass. Frustration and anger are the result.
For exactly these reasons, it is important not to make any mistakes in preparation and to follow the MPU procedure carefully step by step. Many people find out far too late and make one of the biggest MPU mistakes. The duration of MPU preparation is often underestimated, so valuable time is lost. It is important to start your preparation as early as possible. Psychological assessors also prefer it when the candidate has prepared over a longer period. If you have to undergo a drug or alcohol MPU, the question of abstinence and its duration must be clarified first.

Do I need abstinence?
To avoid unnecessary delays, it makes sense to consult an expert early on before the MPU who is familiar with the assessment criteria of the medical-psychological assessment. Especially for an alcohol or drug MPU, it should be clarified in good time whether proofs of abstinence are required and over what period they must be provided.
Depending on the reason, 6, 12 or in certain cases even 15 months of abstinence may be required. In other constellations it is possible to pass the MPU without proof of abstinence, provided the individual requirements are met.
Misjudgements regarding abstinence and its duration often lead to avoidable disadvantages. These include a negative report or an abstinence control programme started too late, which can considerably lengthen the whole process.
It is important that an abstinence control programme is carried out exclusively by a recognised laboratory that meets the CTU criteria. Only under these conditions are the proofs of abstinence recognised for the MPU.
Proofs of abstinence from your family doctor are not permitted for this purpose and are not accepted by the assessment centres.
How can I prove abstinence?
For the MPU, abstinence can be proven through urine tests, hair analyses or – for alcohol cases – blood tests for PEth (phosphatidylethanol). All of these methods are recognised components of a regular abstinence control programme, provided they are carried out according to the applicable quality and control criteria.
The PEth value is a direct alcohol marker in the blood and is suitable for checking past alcohol consumption over several weeks. PEth is regularly used in alcohol MPUs as part of a normal control programme and is not a special or exceptional procedure.
In the past, liver values were sometimes used to prove abstinence. This has not been permitted for many years, because liver values alone are not reliable proof of abstinence. They still matter, however: in alcohol cases, liver values continue to be taken into account in the medical part of the MPU. The significance of liver values lies in the supplementary medical assessment.
Further information on the costs of an abstinence control programme can be found on the MPU costs page.
You can register for an abstinence control programme through a recognised partner laboratory, for example via this link.
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Preparing for the medical-psychological report
It is important to prepare carefully for the medical-psychological report in order to pass the MPU at the first attempt if possible. The psychological MPU questions are often very complex. Without professional support, many people find it hard to prepare adequately. The official failure rate is currently 38 per cent.
The assessment in the medical-psychological assessment is based on strict and complex assessment guidelines published by the Federal Highway Research Institute (BASt). For this reason, the MPU should not be underestimated. Well-founded, professionally supported preparation helps to assess the requirements realistically and avoid typical mistakes.
It is important that you choose a reputable MPU counsellor who works as a qualified traffic psychologist. Numerous personal accounts and MPU myths circulate around the MPU, and they often lead to false expectations.
Professional MPU counselling can contribute significantly to assessing the requirements of the medical-psychological assessment realistically and working towards them in a targeted way. A positive report requires a thorough and comprehensible reappraisal of the offence or offences and the personal background.
In addition, concrete and stable changes in behaviour must be worked out that allow a positive prognosis for future behaviour in road traffic. A professionally sound reappraisal is generally hardly possible without the support of a traffic psychologist.
In summary, professionally appropriate preparation for the medical-psychological assessment can generally only be ensured by a traffic psychologist. An individual assessment of your own starting position is possible, for example, in a free initial consultation.
At the same time, we strongly advise against using supposed MPU tricks or getting involved in illegal offers such as buying a positive MPU report. Such approaches regularly lead to negative assessment results and can have additional legal consequences.
Reducing the costs of the medical-psychological assessment
The most effective way to keep the costs of the medical-psychological assessment low is to pass the MPU at the first attempt. Every repeat assessment causes additional expenses and lengthens the whole process.
It can also save costs to clarify early on whether proofs of abstinence are needed at all. In practice, an elaborate and expensive abstinence control programme is quite often started even though it would not have been necessary for the reason in question.
The choice of laboratory also plays a role: prices for abstinence control programmes sometimes differ considerably, even though the requirements are identical. An objective classification of the costs and their components can be found in the overview of MPU costs.

FAQ – MPU (medical-psychological assessment)
We will answer it in person in the free initial consultation.
Ask a questionWhat is the MPU (medical-psychological assessment)?
The MPU (medical-psychological assessment) is a complex, multi-stage assessment procedure. It checks whether physical, mental and character-related fitness to drive is given – especially for people who have attracted significant attention in road traffic.
Why is the MPU often called the “idiot test”?
In everyday language, the MPU is often called the “idiot test”. However, this name does not do the assessment justice, as it is an extensive assessment procedure that goes far beyond simple knowledge or reaction tests.
Is the MPU carried out as harassment?
People often find the MPU very stressful. However, the aim is not harassment but checking fitness to drive and assessing whether responsible behaviour in road traffic can be expected in future.
In which cases is an MPU ordered?
An order by the authorities is never made without reason. As a rule, an MPU is ordered for:
- from 1.6 per mille blood alcohol or repeated driving under the influence of alcohol
- drug use or possession of drugs and/or misuse of medication
- 8 points in Flensburg
- serious criminal offences
How long does the medical-psychological assessment take?
The medical-psychological assessment usually takes about 3–4 hours.
What parts does the MPU consist of?
The MPU is divided into three parts: the medical examination, performance and reaction tests and the psychological assessment interview.
What is checked in the medical part of the MPU?
In the medical part, your general state of health is examined (e.g. reflexes, heart function, mobility). You will also be asked about known illnesses and medication you take.
What happens in the performance and reaction tests – and what if you do not pass them?
The computer-based tests check, among other things, resilience, reaction and the ability to concentrate. The tests are not a problem for most people.
Even if you do not pass the tests, you have not automatically failed: a driving behaviour observation may be possible (a drive with an assessor and a driving instructor on a set route).
Why is the psychological interview considered the biggest hurdle?
The interview is detailed and can become very personal. It covers the background and causes of the offences. Assessors want to know what has changed so that offences are reliably avoided in future.
What happens on the day of the MPU (procedure on site)?
On the day of the assessment, you register at the officially recognised assessment centre by presenting your identity card. You are then given questionnaires (including on your driving licence, personal circumstances and medical questions). These documents are later presented to the psychological assessor and the doctor.
Which documents should I bring to the MPU – and can I submit anything later?
Relevant documents on psychological and medical preparation (e.g. proofs of abstinence, a certificate of preparation or similar) should be available and presented on the day of the MPU. If something is missing, documents can be submitted later – this is possible.
What should I pay attention to during the MPU?
- arrive well rested
- arrive completely sober (no drugs, no alcohol, no other substances)
- behave cooperatively
- be punctual and allow for waiting times
- avoid accusations against authorities, doubts about lawfulness or justifications
- bring an interpreter if there are language difficulties
Do I need proof of abstinence (6, 12 or 15 months) for an alcohol or drug MPU?
Whether proofs of abstinence are required and over what period they must be provided is central to the MPU. Depending on the offence, consumption pattern and individual history, 6, 12 or in certain cases even 15 months may be required.
Abstinence: 6, 12 or 15 months | MPU without proof of abstinence
How can I prove abstinence (urine, hair analysis, PEth) – and what applies to family doctors & CTU?
For the MPU, abstinence can be proven through urine tests or hair analyses. For alcohol cases, PEth (phosphatidylethanol) in the blood can also be used as part of a control programme.
It is important that the abstinence control programme is carried out by a recognised laboratory that meets the CTU criteria. Proofs of abstinence from your family doctor are not permitted and are not accepted.
Why proofs of abstinence from your family doctor are not possible
What role do liver values play and what costs can arise overall?
Liver values are not proof of abstinence (this has not been possible for many years). In alcohol cases, however, they remain significant because they can be examined closely in the medical part of the MPU.
Various costs can arise in connection with the MPU, e.g. official fees, possible fines, costs for proofs of abstinence and expenses for preparation and assessment.
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