Holden Mechanic, Specialist & Auto Electrician in Mascot

Expert Holden servicing without the dealer price tag

At Hitech Automotive Centre in Mascot we're an independent Holden mechanic and specialist — a Sydney icon workshop trusted by drivers right across the city, with our own Holden auto electrician on-site for diagnostics and electrical work. As a Australian marque, your Holden benefits from technicians who understand its engineering — and who use dealer-level diagnostic equipment to get the job done right the first time.

Whether you need a routine log book service, a complex electrical diagnosis or a major repair, we treat your Holden with the care it deserves and give you honest, upfront advice every step of the way.

Common Holden issues we fix

• LS V8 servicing and tuning
• Colorado diesel DPF/EGR
• cooling and timing issues
• Routine log book servicing and scheduled maintenance
• Auto electrical faults, batteries, alternators and starters
• Air conditioning regas and repairs

Holden log book servicing & your warranty

Servicing your Holden with us will not void your new-car warranty. We follow the manufacturer schedule, use the correct parts and fluids, and stamp your log book — keeping you protected under Australian Consumer Law while you enjoy fair, independent pricing.

Why your Holden needs regular servicing

It's easy to put off a service until something goes wrong — but by the time a Australian Holden starts showing symptoms, the underlying problem has usually been building for a while. Regular servicing catches wear and fluid degradation early, before it turns into an expensive repair, and keeps your Holden running the way it was engineered to.

Holden auto electrical service

Modern Holden models rely on complex electrical systems — from the alternator and starter to the ECU and safety sensors — and it's not always obvious when one is starting to fail. Our auto electricians work alongside our mechanics on-site, so electrical faults on your Holden get diagnosed and fixed without a separate trip to another workshop.

Does your Holden need a brake check?

Brakes are one part of your Holden you can't afford to get wrong. We inspect pads, discs, fluid and the ABS system as part of every service, and can carry out a dedicated brake check any time something doesn't feel right — pulling, grinding, or a spongy pedal are all worth getting looked at promptly.

Holden computer diagnostics

Our technicians use dealer-level scan tools to read and program Holden control units accurately, including:

• Dashboard & immobiliser diagnostics
• Fuel injection pump and fuel pressure regulator faults
• ECM/ECU immobiliser and build coding
• SRS, airbag and restraint system diagnostics

Holden battery, starter motor & alternator

Your Holden's battery, starter motor and alternator all work together to get you moving and keep you charged — and a fault in any one of them can leave you stranded. We test the battery and its connections at every service, check the starter motor draws the correct current, and inspect the alternator's drive belt and output, replacing whichever component is on its way out before it fails.