Power. Precision.
Performance.
From a misfire to a full engine rebuild — Global Diesel Auto Techs keeps heavy machinery, trucks and fleets running at peak performance.
Specialist services for serious machinery
Engine Diagnostics
Advanced fault-finding for modern diesel ECUs and common-rail systems.
Heavy Duty Repairs
Trucks, buses, tippers and earth-moving equipment serviced in-house.
Performance Tuning
Power, torque and fuel-economy mapping by certified technicians.
From booking to back on the road
Book In
Call or message us — we'll find a slot that works.
Diagnose
Honest assessment with our factory-grade tools.
Repair
Quality parts, certified workmanship, fair price.
Drive Away
Backed by our workmanship guarantee.
Built on trust. Backed by experience.
We've earned our reputation the hard way — by delivering honest diagnostics, quality workmanship and turnaround times that keep your vehicles earning, not waiting.
- Factory-grade diagnostic equipment
- OEM and quality aftermarket parts
- Certified diesel technicians
- Transparent quotes — no surprises
Warranty Assured
Every repair backed by our workmanship guarantee.
Fast Turnaround
We know downtime costs money. We move quickly.
Fleet Friendly
Servicing contracts tailored for fleet operators.
Modern Tools
Latest scan tools for European, American & Asian diesels.
Trucks we know inside-out
When you call us, we know exactly where to look. Below is a snapshot of the makes we service every week — the common faults we see, and the diagnostic process we run on each.
Mercedes-Benz Actros
Long-haul Tractor- AdBlue / SCR faults
- Turbo actuator failures
- EGR clogging
- Xentry / DAS scan
- Live SCR pressure test
- Boost & EGR flow analysis
Scania R-Series
Heavy Tractor- Injector cup leaks
- DPF regen failures
- Retarder oil contamination
- SDP3 multiplexer scan
- Compression & leak-down test
- Retarder oil sampling
Volvo FH / FM
Long-haul / Rigid- VGT turbo sticking
- I-Shift clutch wear
- Common-rail pressure loss
- Tech Tool (PTT) scan
- Clutch actuator calibration
- Rail pressure live data
MAN TGX / TGS
Heavy Tractor- Injector copper seal leaks
- Air compressor blow-by
- ECU CAN-bus errors
- MAN-cats II scan
- Air system pressure test
- CAN-bus signal trace
DAF XF / CF
Long-haul / Distribution- PACCAR MX EGR cooler cracks
- Fuel pump wear
- Cabin air leaks
- DAVIE diagnostic scan
- EGR cooler pressure test
- Smoke leak detection
Iveco Stralis / S-Way
Long-haul Tractor- Injector wiring harness faults
- Hi-SCR sensor failures
- Gearbox oil pressure
- EASY IVECO scan
- Harness continuity test
- Transmission live data
Isuzu FSR / FVZ
Medium / Heavy Rigid- Fuel injector knock
- Turbo oil seal leaks
- Glow plug failures
- G-IDSS scan
- Injector balance test
- Glow circuit resistance
Hino 500 / 700
Medium / Heavy Rigid- DPR ash overload
- Common-rail leak-off
- Clutch hydraulic failure
- Hino DX scan
- Leak-off injector test
- Hydraulic pressure check
Cummins ISX / X15
Engine Platform- EGR valve sticking
- Injector cup erosion
- Variable geometry turbo lag
- Insite OEM scan
- Cylinder cut-out test
- VGT actuator sweep
Caterpillar C13 / C15
Engine / Off-Highway- HEUI pump wear
- Coolant temp sensor drift
- Oil pressure regulator
- Cat ET scan
- HEUI pressure test
- Live sensor calibration
Don't see your truck? We work on virtually every diesel platform — give us a call.
Questions, answered
The most common things owners and fleet managers ask before booking in.
Yes — from European trucks (Mercedes, Scania, Volvo, MAN, DAF, Iveco) to Asian (Isuzu, Hino) and American (Cummins, Detroit Diesel, Caterpillar) engines, plus all common pickups and 4x4s.
Most diagnostics are completed within the same day. Complex intermittent faults may require a longer assessment — we'll always agree timelines with you upfront.
Absolutely. We tailor scheduled maintenance plans for fleet operators, with priority booking, transparent reporting, and predictable pricing.
Every repair we carry out is backed by our workmanship guarantee. We stand behind every job that leaves the workshop.
Call 078 376 1453, send an email to globaldieselautotechs@gmail.com, or use the contact form. We'll find a slot that works for you.
Ready to get back on the road?
Speak directly with our workshop team. We'll diagnose the issue and quote you fairly — no jargon, no upsell.