Truck Diesel Mechanic

Trucks and Trailers

Employment type

Full-time

Compensation

Market- and experience-related

Work pattern

Workshop, breakdowns and rotational standby

Reporting to

Designated supervisor

Closing date

06 November 2026

Job location

Randfontein - West Rand, Johannesburg

1. Position Purpose

To ensure the safe, reliable and cost-effective operation of the company fleet by inspecting, servicing, diagnosing and repairing heavy-duty diesel trucks, trailers and associated systems. The role is responsible for reducing breakdowns and downtime, completing repairs to a right-first-time standard, supporting drivers during breakdowns and maintaining accurate maintenance records.

2. Key ResponsibilitiesPreventative maintenance and servicing

• Perform scheduled servicing and preventative maintenance during planned vehicle downtime, in accordance with manufacturer recommendations, fleet schedules and internal job instructions.
• Inspect fluid levels, filters, belts, hoses, batteries, cooling systems, steering, suspension, wheel ends, driveline components and safety-critical systems.
• Identify developing defects early and recommend corrective action before failure or roadside breakdown occurs.
• Lubricate and adjust components, replace service items and verify that completed servicing meets the required standard.

Diagnostics, repairs and testing

• Inspect, diagnose and repair heavy-duty trucks and trailers, including Volvo, UD, Scania and Mercedes-Benz vehicles or similar makes.
• Diagnose and repair diesel engines, fuel and cooling systems, turbochargers, clutches, manual/automated transmissions, prop shafts, differentials and final drives.
• Diagnose and repair pneumatic braking, air suspension, ABS/EBS, electrical, electronic, starting, charging, lighting and vehicle-management systems.
• Use multi-brand computer diagnostic equipment to retrieve fault codes, conduct guided tests, interpret live data and confirm repairs.
• Conduct post-repair inspections and road/functional tests, document results and release vehicles only when defects have been rectified or formally escalated.

Trailers and tyres

• Inspect and repair trailer braking, air, electrical, suspension, landing-leg, coupling, body, tarp and hydraulic systems where applicable.
• Maintain an accurate fleet tyre register, including serial numbers, fitment positions, condition, pressure, tread and replacement/rotation information.
• Report irregular tyre wear, alignment concerns, wheel-end defects and recurring trailer failures.

Breakdown and driver support

• Attend roadside and depot breakdowns, assess risk, make the area safe and complete repairs where practical.
• Provide clear remote telephone support to drivers to assist with safe fault identification and escalation.
• Participate in a rotational standby arrangement and provide after-hours support, including weekends and public holidays when required.
• Escalate failures requiring recovery, specialist support, OEM intervention or extended downtime.

Parts, suppliers and cost control

• Identify and request the correct parts, consumables, tools and external services, supported by accurate vehicle and component information.
• Use new, reconditioned and serviceable used parts responsibly and only where approved and fit for purpose.
• Protect removed components for inspection, warranty or core return and report abnormal or repeat failures.
• Check the quality and scope of work completed by external repairers and report deficiencies before acceptance where possible.
• Minimise waste, avoid unnecessary replacement of serviceable components and protect company assets, tools and stock.

Administration and communication

• Open, update and close electronic job cards with accurate fault descriptions, diagnosis, work performed, parts used and inventory, labour time and test results.
• Maintain vehicle service history, inspection sheets, tyre records and supporting photographs or diagnostic reports when required.
• Perform reasonable ad hoc duties related to workshop and fleet operations.

3. Minimum Requirements

• Recognised Diesel Mechanic Trade Test Certificate or equivalent accredited qualification.
• Minimum five years’ post-qualification experience repairing and maintaining heavy-duty trucks and trailers.
• Demonstrated experience on Volvo, UD, Scania and Mercedes-Benz trucks, or comparable European heavy-commercial vehicles.
• Strong practical knowledge of diesel engines, gearboxes, clutches, differentials, drivetrains, brakes, air systems, suspension, electrical and electronic systems.
• Competence in computer-based diagnostics and interpretation of fault codes, wiring diagrams, technical manuals and service information.
• Valid South African driver’s license. Code EC/Code 14 with a valid Professional Driving Permit is strongly preferred for vehicle testing and recovery support.
• Own reliable transport and ability to report for standby call-outs.
• Ability and willingness to work overtime and participate in a 24/7 rotational standby service.
• A responsible safety record, sober habits and the ability to work reliably with limited supervision.
• Valid South African documents.

4. Benefits

• Company cell phone and data.
• Company computer, where required for diagnostics and administration.
• Performance-based annual bonus, subject to company rules and individual/company performance.

5. Application Process

Candidates who meet the requirements should submit a detailed CV, copies of relevant qualifications and trade certificate, driver’s license, and contactable references to:

teele@teeworx.co.za

Pay: R10 000,00 - R20 000,00 per month

Work Location: In person