Logbook Servicing and Your Warranty: What's Actually True?

Ask around and you'll still hear it: "you have to service at the dealership or you'll void your warranty." It's one of the longest-running myths in car ownership, and it costs Australian drivers real money every year in inflated dealership servicing bills. Here's the actual legal position.

What Australian Consumer Law actually says

Under Australian Consumer Law, a manufacturer cannot void your new car warranty simply because you had it serviced by an independent mechanic instead of the dealership. This has been reinforced by the Australian Competition and Consumer Commission (ACCC), which has taken action against manufacturers implying otherwise in the past.

The key condition is that the servicing must:

• Follow the manufacturer's specified logbook schedule (correct intervals, correct procedures)
• Use parts and fluids of equivalent quality to those specified by the manufacturer
• Be properly documented, so there's a clear service history if a warranty claim is ever needed

In other words: it's about doing the job to the right standard, not about who holds the tools.

What "logbook servicing" actually means

Every new car comes with a manufacturer-specified maintenance schedule — a logbook — that sets out exactly what needs to be checked, replaced or adjusted at each service interval, usually based on kilometres travelled or time elapsed, whichever comes first. Logbook servicing means following this schedule to the letter, rather than a generic "one size fits all" service.

A mobile mechanic who offers logbook servicing should be working from your specific vehicle's schedule — not a rough approximation — and should stamp your physical logbook or provide digital service records that show exactly what was done and when.

Common myths, debunked

"You have to go to the dealership or the warranty is void."

False. Any suitably qualified mechanic — mobile or workshop — can perform logbook servicing without affecting your warranty, provided the work meets manufacturer specifications.

"Non-genuine parts always void the warranty."

Not automatically. The law allows for parts of equivalent quality to genuine parts. What does void a warranty claim is if a non-equivalent or faulty part directly causes the fault being claimed.

"You need dealership-branded stickers or stamps to prove servicing."

No — a clear, dated service record showing what was done, by whom, and with what parts is what matters, regardless of who issues it.

What to keep for your records

• An itemised invoice for every service, listing parts and labour
• A stamped logbook (if your car uses a physical one) or digital service history
• Receipts for any parts replaced outside of a standard service

If you ever do need to make a warranty claim, having this paper trail ready makes the process far smoother — regardless of who performed the servicing.

The bottom line

You're free to choose who services your new car without risking your warranty, as long as the work is done properly and documented. For most Perth drivers, that means logbook servicing from a qualified mobile mechanic can be a genuinely cost-effective alternative to dealership pricing — see our logbook servicing page for how we handle it.