53 Diesel Mechanic jobs in South Africa

• Diagnosis:  Using diagnostic tools and equipment to identify mechanical and electrical problems in diesel engines and related systems. 
• Repair & Maintenance:  Performing repairs, replacements, and adjustments to various parts, including engines, transmissions, steering mechanisms, and braking systems. 
• Routine Servicing: Conducting routine maintenance tasks like oil changes, fluid checks, and tyre rotations. 
• Testing:  Test-driving vehicles and equipment after repairs to ensure proper functionality and performance. 
• Record Keeping:  Maintaining accurate records of services and repairs performed. 
• Safety Compliance:  Ensuring adherence to safety regulations and company policies. 
• Collaboration: Working with other mechanics and technicians to complete projects efficiently.  

• Technical Knowledge: Strong understanding of diesel engine systems, components, and repair techniques.  Must have experience working with Yellow Metal (Excavators, front end loaders, TLB’s, Skid Steer Loaders, Tele Handlers etc). Preferably Komatsu/ Bell/ Caterpillar etc.
• Diagnostic Skills: Ability to use diagnostic tools and interpret diagnostic test results to identify issues. 
• Repair Skills: Proficiency in using relevant specialised equipment for repairs. 
• Problem-Solving: Ability to analyse issues, troubleshoot problems, and develop effective solutions. 
• Communication: Effective communication skills for interacting with colleagues, and supervisors.

Diesel Mechanic Olifantsfontein Gauteng

Job Purpose:

To inspect, diagnose, repair, service, and maintain heavy-duty diesel-powered trucks and trailers according to manufacturer and safety standards.

? Key Responsibilities:

• Perform diagnostics and troubleshooting on diesel engines, transmissions, braking systems, electrical systems, and drivetrains.
• Service and repair trucks (e.g., Freightliner, Volvo, Scania, MAN, Mercedes-Benz ).
• Conduct preventative maintenance and scheduled services.
• Perform safety inspections and roadworthiness checks.
• Repair and replace defective parts, components, and systems.
• Use diagnostic tools and software to assess and fix problems.
• Maintain accurate service records and job cards.
• Follow health and safety protocols and workplace procedures.
• Liaise with workshop managers, parts departments, and sometimes clients.

? Skills & Competencies:

• Strong mechanical and technical skills.
• Ability to interpret technical manuals and diagnostic codes.
• Proficiency in using hand tools, diagnostic equipment, and machinery.
• Good problem-solving and analytical skills.
• Communication skills (verbal and written).
• Time management and ability to work under pressure.
• Physical fitness and ability to work in various conditions.

? Qualifications & Requirements:

• Red Seal Certification as a Diesel Mechanic (national trade test passed).
• Minimum 3–5 year’s experience working on trucks or heavy-duty diesel vehicles.
• Valid driver’s license (Code 10/14 often required).
• Own tools (sometimes required).
• PDP (Professional Driving Permit) – sometimes required for field work.
• Advantageous: OEM training (Volvo, Mercedes-Benz, MAN, Scania, etc.)

? Working Conditions:

• Monday to Friday, occasional overtime or standby work.
• Workshop-based, field service, or long-distance breakdown support.
• Exposure to noise, grease, oil, and heavy lifting.

• Trade Test Certificate (QCTO/Red Seal or equivalent) in Diesel Mechanics.
• Minimum 3 years of post-qualifying experience as a Diesel Mechanic, with specific expertise in UD Trucks .
• Proven skills in diagnostics, repair, and maintenance of heavy commercial vehicles, particularly UD Trucks.
• Strong knowledge of diesel engine systems, hydraulics, pneumatics, and electrical components.
• Valid drivers license; Code EC or Code 14 license with PDP (Professional Driving Permit) is a plus.
• Ability to work independently and collaboratively in a fast-paced environment.
• Excellent problem-solving skills and attention to detail.

• Diagnose, repair, and maintain UD Trucks , including engines, transmissions, brakes, and suspension systems.
• Perform routine maintenance, inspections, and advanced troubleshooting to ensure optimal vehicle performance.
• Conduct repairs on hydraulic, pneumatic, and electrical systems specific to UD Trucks.
• Utilize diagnostic tools and UD-specific software to identify and resolve issues.
• Maintain accurate service records and job cards in compliance with QCTO and industry standards.
• Ensure adherence to workplace safety protocols and regulations.

• Proven experience as a Diesel Mechanic or similar role
• Strong knowledge of diesel engines and systems
• Proficiency with diagnostic tools and repair equipment
• Ability to troubleshoot and repair mechanical, electrical, and hydraulic systems
• Own tools in good working condition
• Valid drivers license

• Diagnose and repair diesel engines
• Perform routine maintenance on diesel-powered vehicles
• Inspect and repair electrical and hydraulic systems
• Maintain records of repairs, parts used, and hours worked
• Ensure compliance with safety standards and regulations
• Provide customer service and communicate repair timelines and costs