Remove and replace chassis units & components — IMI Awards Ltd Vocationally-Related Qualification Motor Vehicle & Transport Revision

    This subtopic equips learners with the practical skills and underpinning knowledge to remove and replace chassis units and components safely and effectivel

    Topic Synopsis

    This subtopic equips learners with the practical skills and underpinning knowledge to remove and replace chassis units and components safely and effectively. It explores the operation of steering, suspension, and braking systems, alongside legislative and organisational requirements such as health, safety, and environmental obligations. The focus is on applying correct testing and removal procedures to ensure vehicle roadworthiness and compliance with industry standards.

    Key Concepts & Core Principles

    Exam Tips & Revision Strategies

    Common Misconceptions & Mistakes to Avoid

    Examiner Marking Points

    Remove and replace chassis units & components

    IMI AWARDS LTD
    vocational

    This subtopic equips learners with the practical skills and underpinning knowledge to remove and replace chassis units and components safely and effectively. It explores the operation of steering, suspension, and braking systems, alongside legislative and organisational requirements such as health, safety, and environmental obligations. The focus is on applying correct testing and removal procedures to ensure vehicle roadworthiness and compliance with industry standards.

    5
    Learning Outcomes
    4
    Assessment Guidance
    5
    Key Skills
    6
    Key Terms
    5
    Assessment Criteria

    Assessment criteria

    IMIAL Level 2 Diploma in Automotive Maintenance and Repair (QCF)

    Topic Overview

    The IMIAL Level 2 Diploma in Automotive Maintenance and Repair (QCF) provides foundational knowledge and practical skills for servicing, repairing, and maintaining light vehicles. This qualification covers essential areas such as engine systems, chassis components, electrical systems, and transmission systems, preparing students for roles as vehicle technicians or for further study at Level 3. It aligns with industry standards and emphasizes safe working practices, diagnostic techniques, and the use of specialist tools.

    Understanding this diploma is crucial for anyone pursuing a career in the motor vehicle industry. It bridges theoretical knowledge with hands-on application, ensuring students can perform routine maintenance tasks like oil changes, brake inspections, and tyre replacements, as well as diagnose common faults. The qualification also introduces key health and safety regulations, environmental considerations, and customer service skills, making it a comprehensive entry point into the automotive sector.

    Within the wider subject of Motor Vehicle & Transport, this diploma forms the core of vocational training. It is recognized by employers and professional bodies, providing a stepping stone to advanced apprenticeships or specialized certifications. Mastery of these topics not only enhances employability but also builds confidence in dealing with modern vehicle technologies, including hybrid and electric systems, which are increasingly important in the industry.

    Key Concepts

    Core ideas you must understand for this topic

    • →Vehicle systems and components: Understanding the function and interaction of engine, transmission, braking, steering, suspension, and electrical systems.
    • →Diagnostic procedures: Using systematic approaches and tools (e.g., multimeters, scan tools) to identify faults and interpret technical data.
    • →Maintenance schedules: Following manufacturer guidelines for service intervals, fluid checks, and component replacements to ensure vehicle safety and reliability.
    • →Health and safety regulations: Applying COSHH, LOLER, and PUWER regulations, as well as safe lifting techniques and waste disposal procedures.
    • →Tools and equipment: Selecting and using hand tools, power tools, and specialist equipment (e.g., jacks, stands, diagnostic computers) correctly and safely.

    Learning Objectives

    What you need to know and understand

    • Explain the function and interaction of chassis units and components, including steering, suspension, and braking systems.
    • Describe legislative and organisational requirements for safe removal and replacement, including COSHH, PPE, and disposal regulations.
    • Demonstrate correct testing procedures to diagnose chassis faults prior to component removal.
    • Apply safe work practices during the removal and replacement of chassis components, following manufacturer specifications.
    • Verify correct operation and alignment of replaced chassis components through functional tests and measurements.

    Assessment Criteria

    Key criteria assessors look for in your portfolio

    • Award credit for accurately identifying and explaining the operation of suspension components such as springs, dampers, and anti-roll bars.
    • Award credit for demonstrating correct use of PPE and safe lifting techniques during practical tasks.
    • Award credit for systematically following a method statement and risk assessment before beginning work.
    • Award credit for correctly torquing fasteners to manufacturer specifications and double-checking all fixings.
    • Award credit for performing post-repair checks, such as steering wheel centering, brake pedal feel, and road test (if appropriate).

    Assessment Guidance

    Guidance for achieving higher grades

    • 💡Always consult the vehicle-specific workshop manual or technical data before starting any removal/replacement task.
    • 💡During practical assessments, verbalize safety checks and explain your decision-making to demonstrate underpinning knowledge.
    • 💡Double-check all fasteners and use torque wrenches calibrated to manufacturer settings to avoid over- or under-tightening.
    • 💡Practice post-repair functional checks, such as steering lock-to-lock and brake performance tests, to ensure roadworthiness.
    • 💡Always refer to manufacturer specifications in your answers. Examiners look for precise values (e.g., torque settings, fluid capacities) rather than vague terms like 'tight enough' or 'full'.
    • 💡When describing a repair procedure, include safety steps (e.g., isolate battery, support vehicle securely) and mention the correct tools. This demonstrates a thorough understanding of workshop practices.
    • 💡Use technical terminology accurately. For example, distinguish between 'service brake' and 'parking brake', or 'drive belt' and 'timing belt'. Misusing terms can lose marks even if the concept is understood.

    Common Mistakes

    Common errors to avoid in your coursework

    • Confusing the roles of springs (support) and dampers (oscillation control) in suspension systems.
    • Neglecting to support components with a jack or stand before removing fixings, leading to strain or damage.
    • Failing to mark alignment settings (e.g., camber bolt positions) before disassembly, causing misalignment after replacement.
    • Reusing self-locking nuts or stretch bolts, which compromises joint integrity.
    • Forgetting to bleed the brake system fully after replacing brake components, resulting in spongy pedal feel.
    • Misconception: 'All diagnostic trouble codes (DTCs) mean the part needs replacing.' Correction: DTCs indicate a fault area, not necessarily a failed component. Always perform further tests (e.g., voltage checks, visual inspections) before replacing parts.
    • Misconception: 'Brake fluid never needs changing.' Correction: Brake fluid is hygroscopic and absorbs moisture over time, reducing its boiling point and braking efficiency. It should be replaced according to the manufacturer's schedule (typically every 2 years).
    • Misconception: 'Tyre pressure can be checked by eye.' Correction: Tyre pressure must be measured with a gauge when tyres are cold. Visual checks are unreliable and can lead to underinflation, affecting handling and fuel economy.

    Frequently Asked Questions

    Common questions students ask about this topic

    Before You Start

    Prior knowledge that will help with this topic

    • •Basic understanding of vehicle operation and common components (e.g., wheels, engine, battery).
    • •Familiarity with fundamental health and safety practices in a workshop environment.
    • •Basic maths and English skills to interpret technical data and follow written instructions.

    Key Terminology

    Essential terms to know

    • Chassis system operation
    • Health and safety legislation
    • Risk assessment and method statements
    • Component removal and replacement
    • Post-repair testing
    • Environmental waste management

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