14 Aug From diagnostics to ADAS: The technical skills modern automotive technicians need
Automotive technology is changing quickly. Today’s technicians need more than strong mechanical knowledge. They must also understand vehicle electronics, software, high-voltage systems, advanced driver assistance systems (ADAS) and modern machinery.
For dealerships, local garages, independent auto repair shops and vehicle repair businesses, this shift creates both challenges and opportunities. Employers need mechanics who can diagnose complex faults, follow safe repair procedures and continue learning as new vehicle systems enter the workshop.
For technicians and automotive job seekers, developing these skills can lead to stronger career prospects, greater job security, long term career prospects and access to specialist roles across various employers.
Why automotive technician roles are changing
Modern vehicles rely on interconnected electronic control units, sensors and software. A fault that appears mechanical may be caused by a communication issue, sensor failure, incorrect software configuration or other symptoms within the vehicle network.
The growth of electric vehicles, diesel-powered vehicles with advanced systems and ADAS is increasing the need for technicians with specialist training. The Institute of the Motor Industry reported in 2026 that demand for EV and ADAS skills is growing faster than training supply. It also found that only 11,518 technicians held an ADAS-related qualification, while 27% of UK vehicles included Level 2 driver assistance features. (student.theimi.org.uk)
This means workshops need to look beyond traditional experience. The strongest candidates are likely to combine practical repair ability with diagnostic thinking, digital confidence, problem-solving prowess and a willingness to complete regular training.
Automotive technology training programs, motor vehicle studies and industrial technology courses can help prospective automotive technicians develop the foundation needed for the changing vehicle industry. Some may also progress through engineering degrees or manufacturer certification.
1. Advanced diagnostic skills
Diagnostics remains one of the most important skills for a modern automotive technician. However, diagnostic work now involves much more than connecting a scan tool and reading a fault code. It may involve computer diagnostic tools, manufacturer software and detailed testing procedures.
Technicians need to understand how to:
- Use manufacturer and aftermarket diagnostic equipment
- Interpret fault codes in context
- Read live data and freeze-frame information
- Test electrical circuits and communication networks
- Follow a structured diagnostic process
- Confirm the root cause before replacing components
- Verify that the repair has resolved the fault
A fault code is not always proof that a component has failed. It may indicate a wiring problem, poor connection, software issue or fault elsewhere in the vehicle network. Good technicians use testing and evidence to reach an accurate conclusion.
The Level 3 light vehicle technician apprenticeship standard includes solving complex faults, using diagnostic methods and operating diagnostic equipment, showing how central these abilities have become to the profession. (tide.theimi.org.uk)
These are among the top car mechanic skills employers look for because accurate diagnostics can reduce repair times, unnecessary parts replacement and disruption for the customer.
2. Electrical and electronic knowledge
Mechanical expertise is still essential, but it must now be supported by a strong understanding of vehicle electrics and electronics.
Technicians should be comfortable working with:
- Voltage, current and resistance
- Relays, fuses and control modules
- Sensors and actuators
- Wiring diagrams
- CAN bus and other vehicle communication networks
- Oscilloscopes and multimeters
- Battery management systems
- Electronic steering, braking and suspension systems
Electrical testing requires patience, practical skills and accuracy. Guesswork can lead to unnecessary parts replacement, longer repair times and higher costs for the customer.
A technician who can move confidently between mechanical inspection and electrical testing is more valuable to a workshop. This is particularly important for independent garages and independent auto repair shops that need versatile team members who can work across a wide range of vehicle makes and models.
Strong electrical tech skills are also useful when working on machinery, custom bike projects, marine equipment and other forms of industrial technology.
3. ADAS diagnosis and calibration
ADAS includes systems designed to support driver safety and vehicle control. Examples include:
- Adaptive cruise control
- Autonomous emergency braking
- Lane departure warning
- Lane keeping assistance
- Blind spot monitoring
- Traffic sign recognition
- Parking assistance
- Forward collision warning
These systems depend on cameras, radar, ultrasonic sensors and other components. Even a small change to a vehicle’s structure, wheel alignment or ride height can affect how those systems operate.
ADAS work involves more than replacing a sensor. Technicians may need to:
- Identify which ADAS systems are fitted
- Locate and test relevant sensors
- Follow manufacturer repair instructions
- Check wheel alignment and vehicle geometry
- Set up calibration equipment correctly
- Complete static or dynamic calibration
- Carry out post-repair testing
- Record the work accurately
The IMI standard for ADAS technicians covers diagnosis, sensor removal and replacement, recalibration, technical data, diagnostic procedures and record keeping. (ukstandards.org.uk)
This is a safety-critical area. If a camera or radar sensor is not calibrated correctly, a driver assistance system may not work within the manufacturer’s required tolerances.
A manufacturer-specific training course can help technicians understand model-specific procedures, while manufacturer certification may support progression into dealership and specialist roles.
4. Understanding calibration conditions
ADAS calibration depends on accurate workshop conditions. Technicians need to understand how factors such as the following can affect results:
- Uneven workshop floors
- Incorrect tyre pressures
- Wheel alignment issues
- Damaged brackets
- Incorrect ride height
- Poor lighting
- Incorrect target positioning
- Unapproved repair methods
- Missing manufacturer information
A calibration system can only produce reliable results when the vehicle, equipment and workshop environment are prepared correctly and the vehicle is in sound condition.
Technicians should also know when a job is outside their equipment or training. Referring work to a qualified specialist is better than completing an unreliable calibration that could create a safety risk, particularly when repairing damaged vehicles.
5. Electric and hybrid vehicle safety
Many modern technicians will work on electric or hybrid vehicles, even if their primary role is not EV repair. This makes high-voltage awareness an increasingly important skill.
Technicians may need training in:
- Identifying high-voltage components
- Following isolation and shutdown procedures
- Using suitable personal protective equipment
- Checking whether a vehicle is safe to work on
- Understanding high-voltage warning labels
- Handling damaged batteries safely
- Knowing when specialist support is required
The IMI lists qualifications covering EV and hybrid vehicle maintenance, diagnosis, testing and repair as part of its TechSafe recognition routes. (student.theimi.org.uk)
Not every technician needs to become a high-voltage battery specialist. However, every workshop should understand which tasks can be completed safely and which require an appropriately trained person.
The same safety mindset can be valuable in other technical environments involving aircraft, marine equipment and machinery, including roles in the aviation industry.
6. Software, data and technical information
Vehicle repair is becoming increasingly dependent on accurate digital information. Technicians need to know how to find, understand and apply:
- Manufacturer repair procedures
- Wiring diagrams
- Calibration requirements
- Technical service bulletins
- Software update instructions
- Vehicle-specific safety information
- Diagnostic test plans
- Parts and component specifications
The ability to use technical information efficiently can reduce diagnostic time and improve first-time fix rates in automotive repair.
Digital confidence is also useful when dealing with connected vehicles. Technicians may need to work with online diagnostic platforms, remote software updates, secure gateways and electronic service records.
The existing skill of using digital systems can also help auto technicians move into related technical roles with various employers and in many countries.
7. Measurement and testing accuracy
Modern repair work requires careful measurement. Technicians must be able to confirm whether a vehicle is within the manufacturer’s specified limits before and after work.
Important areas include:
- Wheel alignment
- Sensor position
- Ride height
- Battery voltage
- Charging performance
- Electrical resistance
- Brake system performance
- Camera and radar alignment
- Torque settings
- Gas and fluid levels where applicable
Accurate testing supports safe repairs and provides evidence that the vehicle has been returned to the correct condition. It also helps technicians explain technical findings clearly to service advisors, managers and customers.
Even routine jobs such as oil changes require careful procedures, correct specifications and accurate documentation.
8. Repair documentation and compliance
Documentation is an important part of modern workshop work. Technicians should record diagnostic results, repairs, calibration activity and final checks clearly.
Good records can help a business to:
- Demonstrate that procedures were followed
- Support warranty claims
- Reduce repeat repairs
- Improve communication between departments
- Protect customers and technicians
- Identify recurring faults
- Support quality audits
The IMI ADAS standard highlights the need to record fault locations, correction activities, test results and calibration information. (theimi.org.uk)
Employers should also check that candidates have the right qualifications, experience and compliance documents for the role. Specialist recruitment support can make this process faster and more consistent.
9. Soft skills still matter
Technical ability is only part of a successful automotive career. Technicians also need strong workplace and communication skills.
Valuable qualities include:
- Logical problem-solving
- Attention to detail
- Reliable time management
- Clear communication
- A willingness to ask questions
- Professional customer awareness
- The ability to explain technical issues simply
- A positive attitude towards training
ADAS and EV work often requires collaboration between technicians, service advisors, parts teams, vehicle manufacturers and external specialists. A technician who communicates well can help prevent delays and avoid misunderstandings.
Problem-solving prowess and technical expertise are valuable, but customer awareness is equally important when explaining repairs, safety concerns and expected completion times.
The skills employers should look for
When hiring modern automotive technicians, employers should assess both current capability and future potential. The best mechanics may have experience with road vehicles, diesel-powered vehicles, dealership systems or specialist machinery.
| Skill area | What employers should look for |
|---|---|
| Diagnostics | Structured testing, scan tool confidence and accurate fault finding |
| Electrical systems | Safe circuit testing, wiring diagram use and electronic understanding |
| ADAS | Sensor knowledge, calibration awareness and manufacturer procedure compliance |
| EV and hybrid systems | Suitable safety training and clear understanding of work limitations |
| Technical information | Ability to use digital repair information and service platforms |
| Documentation | Accurate repair notes, test results and calibration records |
| Adaptability | Willingness to learn new systems and complete continuing professional development |
| Communication | Clear explanations and effective teamwork |
How technicians can build these skills
Technicians can strengthen their employability by creating a clear development plan. This could include:
- Building a strong foundation in mechanical and electrical diagnosis.
- Completing recognised EV and ADAS training.
- Gaining experience with different diagnostic platforms.
- Keeping a record of completed training and practical experience.
- Taking part in continuing professional development.
- Learning how to read manufacturer repair and calibration procedures.
- Updating their CV with specific technical achievements.
The IMI provides ADAS qualifications at different levels, including awareness, calibration and diagnosis, rectification and recalibration. It also links relevant achievements to its TechSafe recognition framework. (theimi.org.uk)
Technicians should focus on practical competence as well as qualifications. Being able to explain how a fault was diagnosed, which tests were completed and how the repair was verified can make a strong impression during an interview.
Prospective automotive technicians can search for training and job openings through specialist recruiters, online job boards, colleges and industry networks. Experience with a custom bike, aircraft systems, marine equipment or industrial technology may also demonstrate transferable skills.
Building a future-ready workshop team
For automotive businesses, the skills gap is not only a recruitment issue. It is also a workforce planning challenge.
Dealerships, garages and vehicle repair businesses can prepare by:
- Identifying current and future skills gaps
- Supporting technicians with funded training where possible
- Creating clear progression routes
- Investing in suitable diagnostic and calibration equipment
- Partnering with specialist training providers
- Hiring for both technical ability and learning potential
- Reviewing job descriptions as vehicle technology develops
The need for advanced skills is likely to continue growing as electric, connected and driver assistance technologies become more common. The IMI’s 2026 education report states that training volumes are not yet keeping pace with demand for advanced vehicle skills. (student.theimi.org.uk)
Businesses should consider how vehicle technology changes will affect their equipment, training budgets and long term career prospects for employees. This can help workshops compete for skilled mechanics and retain experienced auto technicians.
Find automotive technicians with the right skills
The right technician can improve repair quality, workshop productivity and customer confidence. However, finding candidates with the right combination of mechanical knowledge, diagnostic ability and modern vehicle experience can be challenging.
AKA Recruitment supports automotive dealerships, local garages and other businesses with tailored recruitment solutions. With more than 20 years of industry experience, AKA Recruitment can help employers find technicians who match their technical requirements, workplace culture and long-term plans.
Support can include candidate sourcing, CV guidance, right-to-work verification and relevant compliance checks. Whether you need an experienced diagnostic technician, an EV-ready professional or someone ready to develop their ADAS skills, a specialist recruitment partner can help you move from vacancy to appointment more efficiently.
AKA Recruitment can also help businesses reach candidates with experience in automotive repair, road vehicles, diesel-powered vehicles and dealership environments, as well as those transferring practical skills from other technical industries.