Does a Log Book Service at an Independent Mechanic Void My Warranty?

One of the most common questions we hear at our Mascot workshop is: “If I don’t go back to the dealer, will I lose my new-car warranty?” It’s a fair question — and the answer, under Australian law, is no.

You can legally service your car anywhere

Under the Australian Competition and Consumer Commission (ACCC) guidance, a manufacturer cannot void your new-car warranty simply because you had your vehicle serviced by an independent mechanic, as long as the work is carried out:

• According to the manufacturer’s log book schedule,
• Using parts and fluids that meet the manufacturer’s specifications, and
• By a qualified mechanic who stamps and records the service.

In other words, the dealer does not have a monopoly on your servicing. Telling a customer their warranty is void purely because they used an independent workshop may itself breach Australian Consumer Law.

What a proper log book service includes

A genuine log book service isn’t just an oil change. At Hitech Automotive Centre we follow the exact manufacturer schedule for your make and model, which typically covers:

• Engine oil and filter to manufacturer spec
• Inspection of brakes, suspension, steering and tyres
• Fluid checks and top-ups (coolant, brake, transmission, power steering)
• Battery and charging system test
• A full computer diagnostic scan for stored fault codes
• Stamping your log book so your service history stays intact

Why drivers choose an independent specialist

• Dealer-level diagnostics without the dealer price tag. We run the same scan tools but typically charge less.
• You deal with the mechanic directly — clear explanations, no upselling.
• All makes and models, from a Toyota HiLux to a European prestige car.

If your vehicle is still under warranty, keep every invoice and make sure your log book is stamped at each service. That paperwork is your protection.

Sources & disclaimer

This article is general information only and does not constitute legal advice. Warranty terms vary between manufacturers — always read your specific warranty booklet. For the consumer-law position on servicing and warranties, see the ACCC (accc.gov.au) guidance on car warranties and the Australian Consumer Law.

Book your next log book service with our team — contact us or book online.