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  • One-stop shop for mechanical, electrical, & rego
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A Person is Using a Multimeter to Test a Car Battery — Autochange Mechanical Repairs & Tyres in Bellambi, NSW

Wollongong Auto Electrical

Electrical problems can be some of the trickiest to diagnose—but at Autochange Mechanical Repairs & Tyres, our expert team makes it simple. Based in Bellambi and servicing the greater Wollongong area, we provide comprehensive auto electrical repairs for all vehicle types. Whether it’s flickering headlights, a flat battery, faulty wiring, or your car just won’t start, we’ll find the cause and fix it properly—no guesswork, no bandaid fixes.


We work on passenger cars, utes, 4WDs, and light commercial vehicles, using modern diagnostic tools to identify and repair issues fast. If your vehicle is showing warning lights, not charging properly, or having trouble with internal electronics, we’re here to help.


  • Electrical diagnostics & fault-finding
  • Starter motor, alternator & battery repairs
  • Wiring, lights & dashboard issue repairs


Electrical issues can disrupt your day and affect the safety of your vehicle. Book a full system check or get professional repairs from a team that knows how to solve the problem—call (02) 4285 5297 today.

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Fast, Accurate Repairs That Last

From modern vehicles packed with tech to older cars with basic wiring, our team understands how electrical systems work—and more importantly, how to repair them without cutting corners. We use quality parts, proven techniques, and the latest diagnostic software to pinpoint issues quickly.


Our auto electrical services include battery testing and replacement, starter motor and alternator repairs, fuse and relay replacements, lighting system checks, trailer wiring, and more. We’ll provide clear advice, an upfront quote, and thorough repairs to get you safely back on the road.


  • Battery testing & replacements
  • Alternators, starter motors & sensors
  • Complete diagnostics for warning lights



No job is too big or small—whether you’re dealing with a drained battery, faulty indicators, or dashboard malfunctions, we’ll take care of it quickly and with care. You can count on us for honest service that gets results.

A Person is Charging a Car Battery With a Jump Starter — Autochange Mechanical Repairs & Tyres in Bellambi, NSW

Frequently Asked Questions

  • What are common signs of an auto electrical problem?

    If your vehicle is having trouble starting, lights are dim or flickering, warning indicators keep flashing, or accessories like power windows and radio are malfunctioning, it’s likely you’ve got an electrical issue. These systems are all connected, so even small faults can cause big headaches.

  • Do you offer electrical diagnostics for all vehicle types?

    Yes. We provide diagnostics and repairs for all makes and models, including petrol and diesel vehicles, 4WDs, and commercial fleets. Our team is trained to handle both basic and complex vehicle electrical systems, using up-to-date equipment for accurate fault detection.

  • Can a flat battery cause electrical issues in my car?

    Absolutely. A weak or flat battery can affect everything from ignition to dashboard functions, lighting, and even engine performance. We’ll test your battery and charging system to ensure everything is working as it should before recommending a replacement.