What To Check When Buying A Used Car In Australia? Assessing Used Vehicles

Know what to check when buying a used car in Australia with this practical used car buying guide and checklist to assess vehicles quickly for any red flags.

Of course, the benefits of getting a pre-purchase inspection before buying a used car in Australia are important to ensure you’re getting a reliable vehicle and not inheriting someone else’s problems. However, my Street Smart Tool Kit will walk you through the vehicle inspection you can do before deciding to put down a deposit and then getting a mechanic to inspect.

If you are interested in buying a used car in Brisbane, BPC Auto Inspect offers mobile pre-purchase inspections in the Brisbane area.

Check the Overall Condition of the Vehicle for Odometer Fraud (odometer rollback) Using These Tell-Tale Signs:

The vehicle’s condition can provide significant insights into its history and how well it has been maintained. Before buying a second-hand car start with a complete overview of the vehicle’s exterior and interior, including the car’s body, tyres, engine, and kilometres.

  • If the car has low mileage and is under two years old, compare it with the tyres including the spare. Tread depth indicators are essential to assess tyre wear, with a minimum of 1.5mm recommended. Additionally, check for UV damage signs like discolouration, cracks, or brittleness.
  • Does the interior wear and tear including seat belts match the displayed kilometres, as the speedometer may have been tampered with (wound back)?

Ask yourself, “Does the overall condition align with the age and kilometres travelled? Remember, average kilometres vary based on usage, location, and vehicle type. On average, private use is around 15,000 kilometres per year, higher for company use”. Be cautious of unusually low mileage for older cars as it could indicate odometer tampering.

Interior Inspection

  • Inspect the condition of the seats, carpets, and upholstery.
  • Check the functionality of electronic components like the audio system, air conditioning, dashboard lights and locking mechanism works.
  • Ensure all safety features such as seat belts and airbags are in good condition and working order.
  • Look for any signs of water damage or unusual odours indicating a flood-damaged car or leaks.

Exterior Inspection

  • Examine the paintwork for inconsistencies, rust spots, and scratches.
  • Check for any mismatched paint that could indicate repairs from an accident.
  • Look for any dents, dings, or signs of structural damage.
  • Inspect all windows and lights for cracks or chips.

Chassis & Body Inspection

  • Ensure the chassis and body is free from rust and damage.
  • Check the alignment of the body panels and doors to ensure there hasn’t been any major impact damage.
  • Look underneath the car for any signs of rust, leaks, or damage to the undercarriage.
  • Look for any signs of an ex-mining vehicle for sale.

Tyre Inspection

  • Check the tyre tread depth and look for any uneven wear which could indicate alignment issues.
  • Ensure the tyres are of the same brand and type for consistent performance.
  • Look for any cracks, bulges, or signs of dry rot.

Engine Inspection

  • Check for any oil leaks or unusual noises when the engine is running.
  • Inspect the condition of the engine oil, coolant, and other fluids.
  • Look for any signs of corrosion or damage to the engine components.

Test Drive

Before starting the car to take a road test, note if the engine is cold. A cold-start test can allow you to check for a tinny rattling noise indicating a stretched timing chain or a tapping sound like noisy lifters like the video below.

A tapping noise like noisy lifters.

When Taking the Car for a Test Drive

  • Choose quiet roads to focus on the vehicle.
  • Take your time and evaluate engine performance during cruising, accelerating, and decelerating on various terrains.
  • Ensure smooth gear shifts and monitor the dashboard for warning lights and temperature gauges.
  • Listen for rattles or body noises over speed humps.
  • Check for smoke in the exhaust during uphill acceleration.
  • Assess steering play, potential pulling, and brake performance.

If you have more than one car you’re interested in buying, the road test helps you make a product decision better. It also lets you feel if the car’s odometer is genuine. When you return from your test drive, listen for any engine noises on idle and look underneath the car for fluid leaks.

Check the Vehicle’s Service History

When used car shopping the service records and repair records can tell you a lot. Look for evidence of routine maintenance, such as oil changes and fluid replacements. A well-documented service history indicates the previous owner(s) took proper care.

Look for evidence of routine maintenance, such as oil changes and fluid replacements. A well-documented service history indicates the previous owner(s) took proper care. Following the manufacturer’s recommendations will likely lead to better performance and reliability.

Look for regular replacement service items that have been replaced and the date they were replaced. Here is a list:

  • Engine oil: Prevents premature engine wear.
  • Engine oil filter: Usually done at the same time the engine oil is replaced.
  • Air filter: Maintains the inside of the engine by keeping it free of dust, insects, and pollutants.
  • Fuel filter: Keeps the entire fuel system clean and free of foreign matter.
  • Spark plugs: Essential for engine performance and fuel economy.
  • Drive belts: Connect the engine rotation to drive the alternator, power steering, and air conditioning.
  • Timing belt/chain: Keeps the engine and components in time.
  • Brake pads/shoes: Service life is usually between 40,000 to 60,000 kilometres.
  • Brake fluid: Transfers pressure to the main braking components.
  • Coolant: Prevents a blown head gasket and rust and corrosion in the engine.

Also, verify that the k’s on the odometer aligns with the car’s age and service history and check the logbook history to ensure the odometer readings match up.

Check Vehicle Registration

  • Ensure the vehicle has a valid registration certificate.
  • Confirm the registration number plates, engine number, and vehicle identification number (VIN) from the car itself match those on the seller’s registration certificate and Personal Property Securities Register.

Check for a Safety Certificate Or Roadworthy

  • Check if the vehicle has a valid Safety Certificate or Roadworthy Certificate.

Check for Red Flags with a Car History Check

It’s crucial to review the vehicle’s history report which can reveal accidents, flood damage, or major repairs. The Personal Property Securities Register (PPSR) car search will reveal if the vehicle you want to purchase is recorded as free from debt, stolen or written off. Learn how to check if a car is under finance for free and get the PPSR certificate.

7 Red Flags When Buying A Used Car Infographic

Wrap-Up on What to Check When Buying a Used Car in Australia

To help you further with:

  • What questions to ask when buying a used car from a private seller
  • How to discover the exact price to pay
  • How to negotiate with the seller
  • Plus more

Grab my Buying A Private Car eBook.

To make a final buying decision have a trusted mechanic perform a comprehensive inspection before finalizing the purchase. They can identify potential problems that may not be immediately apparent. For Brisbane pre-purchase vehicle inspections you can book a mobile service with BPC Auto Inspect today.

Additionally, research the make and model’s reliability ratings and common issues to avoid surprises down the road.

Lastly, calculate the market value and compare the car’s price with similar models in your area to ensure you’re getting a fair deal. By following these steps, you’ll be well-equipped to avoid buying a lemon, make an informed decision and find a reliable used car that meets your needs and budget.

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