Our Emergency & Roadside Assistance Services
We provide professional mobile auto electrical solutions right to your location, whenever you need us.
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Fast, On-Site Repairs That Keep Your Fleet Moving
When your heavy vehicle or machinery grinds to a halt, every hour of downtime costs money. East Coast Diesel & Auto Electrical provides a rapid-response emergency truck and heavy machinery auto electrical service throughout Maitland, the Hunter, and the Central Coast NSW.
Our qualified team is fully mobile and equipped with advanced diagnostic tools to identify and repair electrical or diesel system faults on the spot—helping you avoid towing, missed deadlines, and unnecessary lost income.
Whether it’s a prime mover that won’t start, an excavator with warning lights flashing, or a harvester suffering from electrical failure, we come to you fast and fix it right the first time.
Electrical and electronic systems in modern heavy vehicles are critical to both safety and compliance. When they fail, it can lead to:
Operator fatigue and safety risks due to failed air-conditioning or lighting systems.
Production delays if equipment can’t start or maintain charge.
Regulatory breaches for non-functional brake lights, indicators, or engine management faults.
Expensive towing and downtime, especially for vehicles over 4.5 tonnes.
That’s why local fleets and owner-drivers trust East Coast Diesel & Auto Electrical for reliable, same-day breakdown repairs and preventative advice to keep their equipment running in top condition.
Our Specialised Mobile Services
We bring the workshop to you. Every call-out vehicle is loaded with professional-grade diagnostic gear, heavy-duty testing tools, and replacement components to handle complex breakdowns on-site.
Advanced On-Site Diagnostics
Electrical faults in heavy vehicles often hide deep within interconnected control systems. Our technicians use dealer-level scan tools compatible with leading truck and machinery brands to isolate faults quickly across:
- Engine Control Units (ECU): identifying injector, turbo, and fuel-system faults.
- ABS and Transmission Systems: scanning for voltage irregularities or sensor failure.
- Body and Cabin Electronics: pinpointing issues in lighting, auxiliary power, and comfort controls.
We perform live data monitoring and reset fault codes on the spot, ensuring your vehicle is safe, compliant, and ready to return to work without delay.
Starting & Charging System Solutions
Heavy-duty batteries, alternators, and starter motors take a constant beating in commercial operations.
Our mobile starting and charging system repairs cover:
- Battery testing, load checks, and replacement.
- Alternator output testing and voltage regulation repairs.
- Starter motor removal, solenoid repair, and replacement.
- Heavy-duty cabling and terminal inspection for voltage drop and corrosion.
We also supply and fit dual-battery systems and heavy-duty jump-start points for fleet operators that need consistent reliability in tough conditions.
Urgent Diesel System Electrical Repairs
Diesel engines rely on complex electrical controls to manage fuel delivery, combustion, and turbo performance.
Our team specialises in diagnosing and repairing:
- Injector wiring faults and fuel-rail pressure sensor issues.
- Turbocharger actuator and boost-control problems.
- EGR valve and throttle body sensor malfunctions.
With extensive hands-on diesel experience and the latest ECU programming tools, we restore smooth performance, lower emissions, and prevent long-term engine damage.
Heavy-Vehicle Air-Conditioning Support
Breakdowns often involve HVAC electrical issues. Our technicians are licensed in auto air-conditioning repair and regassing, providing:
- Refrigerant recovery and re-gassing.
- Leak detection using ultrasonic and UV dye methods.
- Blower motor, pressure-switch, and actuator replacement.
- Electrical diagnostics for compressors and control modules.
We restore cabin comfort for operators working in hot, dusty civil or agricultural environments.
Electrical System Fault Isolation & Repairs
From simple fuse issues to complete wiring-loom failures, East Coast Diesel & Auto Electrical handles every electrical challenge efficiently. Services include:
- Full wiring repairs and re-looming for heavy trucks, loaders, dozers, and utes.
- Replacement of blown fuses, relays, and switches.
- Lighting upgrades and re-wiring for work lights, beacons, and trailer connections.
- Integration of new safety systems such as reverse cameras, sensors, and warning lights.
Every job is tested before we leave, ensuring you’re fully operational and compliant with NSW road-safety standards.
Rapid Response for Urgent Electrical Faults
When a heavy vehicle breaks down, quick and accurate diagnosis is key to a fast resolution. Our mobile team is fully equipped to diagnose urgent faults on the spot, addressing issues such as:
- Battery failures
- Alternator issues
- Blown fuses
- Faulty wiring
- Other critical system faults
We bring dealership-level diagnostic capability directly to your site in Maitland, helping you avoid workshop delays. Our expertise encompasses complex electrical and computer-based systems, enabling us to pinpoint the root cause efficiently.
24/7 Mobile Call-Outs Across Maitland & Central Coast
When a truck or excavator stops mid-job, you need help now—not tomorrow. East Coast Diesel & Auto Electrical provides priority mobile dispatch throughout:
Maitland, Rutherford, East Maitland, Thornton, Gillieston Heights, Kurri Kurri, Cessnock, Singleton, Branxton, and the wider Central Coast region.
Depending on traffic and distance, we aim for fast on-site attendance with transparent travel rates and honest updates on arrival times.
We operate a fully mobile model, eliminating the need to tow heavy or oversized vehicles. Every service van is equipped with portable diagnostic tools, compressors, testing equipment, and key electrical components—meaning most issues are resolved in one visit.
Downtime doesn’t just affect today’s job—it disrupts the entire schedule. Our emergency electrical service is built around keeping your assets productive:
Rapid fault identification using advanced scan tools.
On-site component replacement where possible.
Transparent communication about repair options and costs before work begins.
Preventative recommendations to reduce future breakdowns.
For fleets, we can create a maintenance schedule that integrates regular diagnostic checks, battery inspections, and A/C servicing—helping prevent unexpected faults before they occur.
Why Choose East Coast Diesel & Auto Electrical
With over 15 years of experience in heavy-vehicle diagnostics and diesel electrical repair, owner-operator Dillon James has built a reputation for honest, reliable workmanship.
Heavy-Vehicle Specialists
We focus exclusively on trucks, earthmoving equipment, and heavy utes—vehicles over 3 tonnes that demand specialist knowledge and tooling.
Fully Mobile & Local
Based in Maitland NSW, our technicians travel directly to worksites, depots, and farms across the Hunter and Central Coast regions.
Advanced Technology
We use dealer-level diagnostic equipment capable of scanning modern diesel ECUs, ABS, and transmission modules across major manufacturers.
Transparent, Fair Pricing
We charge by the hour (minimum 4 hours) with clear quotes before commencing. There are no hidden extras or inflated call-out fees.
Honest Service You Can Trust
Our business thrives on referrals and repeat clients because we explain the issue clearly, complete work efficiently, and treat every job like our own equipment is on the line.
Our Step-by-Step Emergency Response
Initial Call & Assessment
You describe the issue; we provide a preliminary diagnosis and quote.
Rapid Dispatch
Our nearest mobile technician is sent directly to your location.
On-Site Diagnostics
We scan, test, and inspect all relevant systems.
Repair or Replacement
Faulty parts are repaired or replaced on-site wherever possible.
Verification & Testing
We confirm that systems are operating safely and efficiently.
Follow-Up Support
You receive clear advice on maintenance or further servicing needs.
This structured process ensures consistent quality and minimal downtime for every customer, from single-vehicle owners to large commercial fleets.
Industries We Serve
Our emergency electrical service supports multiple industries that rely on uninterrupted operations:
- Transport & Logistics - Trucking fleets, freight carriers, and local haulage operators.
- Civil Construction – Excavators, graders, and dozers on infrastructure projects.
- Agriculture & Rural – Tractors, harvesters, and field equipment.
- Mining & Quarrying – High-demand machinery exposed to harsh conditions.
- Trade & Commercial Fleets – Utes and service vehicles used by plumbers, electricians, and builders.
Preventative Maintenance to Avoid Future Emergencies
While our team responds quickly to breakdowns, we also help clients avoid repeat incidents through preventative maintenance programs:
Scheduled battery, alternator, and starter checks.
Wiring inspections for wear and corrosion.
Diagnostic scans after heavy usage or long haul runs.
Air-conditioning system servicing before peak summer months.
Regular maintenance minimises sudden failures and supports fleet-wide compliance with safety regulations.
Our emergency call-outs often involve:
Vehicles that won’t start or crank.
Dashboard warning lights and intermittent sensor faults.
Lighting failures, including trailers and work lights.
Battery drain or low-charge issues overnight.
Air-conditioning not cooling or failing completely.
Communication errors between engine modules.
Blown fuses or melted connectors from vibration and heat.
If you’re unsure what’s wrong, our diagnostic process isolates the root cause quickly—saving you guesswork and unnecessary parts replacement.
Serving Commmunities across Central Coast NSW
Frequently Asked Questions
You’ve got questions, we’ve got answers about our emergency and roadside assistance for heavy vehicles.
How quickly can you attend an emergency breakdown?
In most Maitland and Hunter Valley locations, we aim to arrive within one to two hours, depending on current call volumes and travel distance.
Can you diagnose engine lights on trucks?
Yes, absolutely. We use advanced diagnostic tools specifically for all heavy vehicles to identify fault codes and system issues.
Are your repairs guaranteed?
Yes, we stand by our work. A workmanship guarantee backs all repairs performed by East Coast Diesel & Performance.
What types of heavy vehicles do you service?
We service a wide range of heavy vehicles, including trucks, machinery, earthmovers, heavy-duty utes, and other diesel vehicles, ensuring we cover the needs of civil contractors, transport companies, and agricultural businesses in the Maitland region.
Can you replace custom electrical setups or aftermarket accessories?
Yes, our team can install, upgrade, or repair custom electrical setups and also work with aftermarket electrical accessories, ensuring they integrate safely and efficiently within your heavy vehicle’s system.
Do you work after hours or weekends?
Yes. We provide priority mobile assistance during extended hours and can arrange 24/7 emergency response for critical commercial clients.
Can you fix both diesel and electrical problems on-site?
Absolutely. Our technicians are dual-qualified in diesel mechanics and auto electrical systems, so we can handle mechanical-electrical crossover issues during a single visit.
Do you charge travel fees?
A transparent travel rate applies for call-outs beyond our immediate Maitland base, with no hidden costs. You’ll receive a quote before dispatch.
Call Now for Urgent Assistance
Need a reliable mobile diesel mechanic in Maitland or the Central Coast?
Call Dillon and the team at East Coast Diesel & Auto Electrical today on 0403 400517, or send an enquiry through our Contact Us page.
We’ll respond quickly, schedule a time that suits you, and arrive fully equipped to get your vehicle or equipment back in action.
