Pre-Purchase Car Inspection: What It Covers and Whether You Need One
A pre-purchase car inspection (PPI) is a professional assessment of a vehicle's mechanical condition by a qualified mechanic before purchase. It typically costs $150–$300 and takes 45–90 minutes. Is it worth it? Almost always.
Pre-Purchase Car Inspection: What It Covers and Whether You Need One
A reputable PPI service (NRMA, RACV, RACQ, RAA, RAC, or independent mechanic) will inspect:
Engine and Cooling System
Oil condition and level
Coolant condition and level
Signs of head gasket failure (bubbles in coolant reservoir, white smoke)
Drive belt condition
Visible fluid leaks
Transmission
Automatic: fluid condition and colour, shift quality through all ratios
Manual: clutch engagement point and feel, gearbox for noise or grinding
Brakes
Pad thickness (measured through inspection aperture)
Disc thickness and wear
Brake hose condition
Suspension and Steering
Shock absorber condition (bounce test)
Ball joints and tie rod ends for play
Steering rack for fluid leaks and play
Underbody
Chassis rails for damage, repairs, or corrosion
Exhaust system condition
Body and Interior
Panel gap consistency
Paint condition and evidence of repairs (paint depth meter)
All electrics: windows, mirrors, air conditioning, wipers
Seatbelts
Tyres
Tread depth at multiple points
Sidewall condition
Age (DOT date code)
What a PPI Does NOT Cover
A PPI is visual and functional — not invasive. Inspectors will not:
Remove panels or upholstery
Disassemble components
Diagnose every potential future failure
A PPI gives you a snapshot of visible, testable condition at a specific moment.
When You Should Always Get a PPI
Any purchase over $10,000
Vehicles over 100,000km
Any vehicle without documented service history
Any vehicle with evidence of past damage
Any vehicle where the seller resists a PPI (this itself is a red flag)
The PPI and VIN Check Together
A PPI assesses mechanical condition. A National VIN Check assesses financial and history status. They are complementary — neither replaces the other.
Do the VIN check first (costs $9.95–$29.95, takes 60 seconds). If the vehicle has finance, WOVR history, or stolen status, you've saved the cost of a PPI on a vehicle you can't safely buy.
If the VIN check is clean, then arrange the PPI before finalising your purchase.
Useful Australian Resources
Popular places to browse and research your next vehicle — always run a history check before you buy.
