Competency in Inspection Repair and Replacement of Commercial Vehicle Tyres
This subtopic focuses on the essential skills for inspecting, repairing, and replacing tyres on commercial vehicles, ensuring safety compliance and operational efficiency. It includes practical tasks such as tread regrooving and accurate record-keeping, preparing learners to maintain fleet tyres in line with industry standards.
Assessment criteria
Topic Overview
The IMI Level 2 Diploma in Specialist Tyre Fitting Competence is a vocational qualification designed for individuals working in the tyre fitting industry. It covers the essential skills and knowledge required to safely and effectively fit, repair, and maintain tyres on a variety of vehicles, including cars, light commercial vehicles, and heavy goods vehicles. This qualification is recognised by the Institute of the Motor Industry (IMI) and is a key step towards becoming a certified tyre technician.
The course is structured around practical competence, meaning you will be assessed on your ability to perform tasks such as tyre removal, fitting, balancing, and repair to industry standards. It also covers health and safety regulations, customer service, and the correct use of tools and equipment. Mastering these skills is crucial for ensuring vehicle safety, optimising tyre performance, and extending tyre life, which directly impacts road safety and fuel efficiency.
This diploma fits into the wider Motor Vehicle & Transport sector by providing a specialist pathway for those focusing on tyre fitting. It complements other IMI qualifications in vehicle maintenance and repair, and can lead to advanced roles such as master technician, workshop supervisor, or even business ownership. The qualification is also a foundation for further study in areas like tyre technology or automotive engineering.
Key Concepts
Core ideas you must understand for this topic
- →Tyre identification and specification: Understanding tyre size, load index, speed rating, and sidewall markings to select the correct tyre for each vehicle.
- →Safe tyre fitting procedures: Using appropriate tools (e.g., tyre changers, balancers) and following manufacturer guidelines to avoid damage to tyres, wheels, and TPMS sensors.
- →Tyre pressure monitoring systems (TPMS): Knowing how to service vehicles with direct and indirect TPMS, including sensor replacement and reset procedures.
- →Tyre repair standards: Adhering to industry standards (e.g., BS AU 159) for puncture repairs, including assessing repairability and using correct repair materials.
- →Health and safety regulations: Complying with COSHH, manual handling, and workplace safety protocols to prevent accidents and injuries.
Learning Objectives
What you need to know and understand
- Be able to work safely when carrying out removal and replacement activities, Be able to inspect commercial vehicle wheels and tyres, Be able to carry out the repair and replacement of commercial vehicle tyres, wheels and tubes, Be able to carry out tread regrooving on commercial vehicle tyres, Be able to record information and make suitable recommendations
- Apply safe working practices during removal and replacement of commercial vehicle tyres and wheels.
- Conduct thorough inspections of commercial vehicle wheels and tyres to identify faults and wear.
- Perform repair and replacement of commercial vehicle tyres, wheels, and tubes in accordance with manufacturer specifications.
- Execute tread regrooving on commercial vehicle tyres to legal and technical standards.
- Record inspection and repair data accurately and provide suitable recommendations for further action.
Assessment Criteria
Key criteria assessors look for in your portfolio
- Award credit for demonstrating correct and consistent use of PPE and safe working practices, including proper jacking, axle stands, and wheel chocking procedures.
- Award credit for systematically inspecting commercial vehicle tyres and wheels, accurately identifying and recording defects such as cuts, bulges, tread depth, uneven wear, and valve condition.
- Award credit for correctly determining whether a tyre can be repaired or must be replaced, following manufacturer specifications and legal limits, and selecting appropriate repair materials.
- Award credit for performing tread regrooving on designated commercial tyres with precision, maintaining correct groove dimensions and depth without damaging the tyre casing or exceeding legal limits.
- Award credit for accurately completing all documentation, including job cards and inspection reports, with clear tyre identification, service details, and suitable recommendations for vehicle owners or fleet managers.
- Demonstrates correct manual handling techniques when lifting heavy wheels.
- Uses personal protective equipment (PPE) consistently throughout the task.
- Accurately identifies and categorises tyre tread wear patterns and structural damage.
- Selects appropriate repair materials and follows the manufacturer's repair procedure precisely.
- Ensures regrooving depth complies with legal limits and the resulting tread profile is uniform.
- Produces a complete, legible service record that includes clear recommendations and safety advisories.
Assessment Guidance
Guidance for achieving higher grades
- 💡During practical observations, verbally explain each step you are taking to demonstrate underpinning knowledge and decision-making, especially for safety-critical tasks.
- 💡Always use calibrated measuring devices for tread depth and pressure checks, and record readings with correct units (mm, bar/PSI) and reference to legal limits.
- 💡Before regrooving, double-check the tyre’s ‘regroovable’ marking and consult the manufacturer’s data to confirm that regrooving is permitted for that specific tyre.
- 💡When completing records, ensure that any recommendation for replacement or further inspection is clearly justified with observed evidence and complies with industry codes of practice.
- 💡Always start with a risk assessment and check that the work area is clear and well-ventilated.
- 💡Adopt a methodical sequence: inspect wheels and tyres before removal, during dismount, and after refitting.
- 💡Refer to vehicle and tyre manufacturer data for torque settings, inflation pressures, and regrooving limits.
- 💡Practise regrooving on a scrap tyre to develop consistent hand control and depth awareness before assessment.
- 💡Verify that all recorded information matches the vehicle registration and job card, and verbally confirm recommendations with the assessor.
- 💡Always refer to the vehicle manufacturer's data for tyre pressures, torque settings, and fitting procedures. Examiners look for evidence that you consult technical data rather than relying on memory.
- 💡Demonstrate safe working practices throughout the assessment, such as using wheel chocks, wearing PPE, and disposing of waste tyres correctly. These are easy marks that many candidates overlook.
- 💡When performing a tyre repair, clearly explain each step and justify your actions (e.g., why you are using a particular plug or patch). This shows understanding, not just mechanical ability.
Common Mistakes
Common errors to avoid in your coursework
- Failing to conduct a full 360-degree inspection of the tyre, particularly overlooking inner sidewall damage or embedded objects not immediately visible.
- Using unsuitable repair plugs or patches for radial commercial tyres, or applying repairs outside the permitted repairable area of the tread.
- Exceeding the maximum allowable tread regrooving depth as specified by tyre manufacturer or legal regulations, risking tyre integrity.
- Forgetting to re-torque wheel nuts after a short period of use following a wheel or tyre change, which can lead to wheel detachment.
- Not recording accurate tyre pressure readings or misidentifying the correct tyre size and load index, leading to safety risks and compliance failures.
- Neglecting to re-torque wheel nuts after refitting and failing to inform the customer of the need for a re-torque check.
- Overlooking inner sidewall and bead area inspection, missing hidden damage.
- Using an incorrect patch size or failing to clean and prepare the repair area thoroughly.
- Regrooving too deeply, exposing cords, or creating an uneven tread pattern.
- Omitting valve stem or O-ring replacement when installing new tyres.
- Incomplete documentation that lacks tyre size, DOT code, pressure checks, or customer advisories.
- Misconception: All tyre punctures can be repaired. Correction: Only punctures within the tread area (not sidewall) and less than 6mm in diameter are repairable. Sidewall damage or large punctures require tyre replacement.
- Misconception: Tyre balancing is optional if the wheel feels smooth. Correction: Even if no vibration is felt, unbalanced tyres cause uneven wear and reduce fuel efficiency. Balancing should always be performed after fitting new tyres.
- Misconception: TPMS sensors are universal and can be swapped between vehicles. Correction: TPMS sensors are vehicle-specific and must be programmed to match the vehicle's system. Using incorrect sensors can trigger warning lights and affect safety.
Frequently Asked Questions
Common questions students ask about this topic
Pass / Merit / Distinction Evidence Checklist
How your portfolio evidence is graded for THE INSTITUTE OF THE MOTOR INDUSTRY Competency in Inspection Repair and Replacement of Commercial Vehicle Tyres
Every vocational unit is marked against named criteria rather than an exam percentage. Your tutor's brief lists the exact codes for this unit — here is what each band is asking you to do.
Demonstrate baseline knowledge, accurate terminology, and core practical application.
Provide detailed analysis, structured explanations, and clear workplace reasoning.
Deliver thorough evaluation, original problem solving, and fully justified recommendations.
Before You Start
Prior knowledge that will help with this topic
- •Basic understanding of vehicle systems (e.g., wheels, brakes, suspension) is helpful but not mandatory.
- •Completion of the IMI Level 1 Award in Introduction to Tyre Fitting or equivalent experience is recommended.
- •Good numeracy skills for interpreting tyre specifications and calculating pressures.
Coursework AI Review
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Key Terminology
Essential terms to know
- Be able to work safely when carrying out removal and replacement activities, Be able to inspect commercial vehicle wheels and tyres, Be able to carry out the repair and replacement of commercial vehicle tyres, wheels and tubes, Be able to carry out tread regrooving on commercial vehicle tyres, Be able to record information and make suitable recommendations
- Health and safety procedures
- Wheel and tyre inspection
- Tyre repair and replacement
- Tread regrooving techniques
- Record keeping and recommendations
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