Why Cars Fail Roadworthy Tests in Brendale and How to Avoid It

Getting a Roadworthy Certificate (RWC) is a must when selling or re-registering a vehicle in Queensland — but many cars in Brendale fail their inspection on the first attempt. The good news? Most of these issues are completely preventable with a little preparation.

Getting a Roadworthy Certificate (RWC) is a must when selling or re-registering a vehicle in Queensland — but many cars in Brendale fail their inspection on the first attempt. The good news? Most of these issues are completely preventable with a little preparation.

1. Tyres Below Legal Tread Depth

Why It Fails

Tyres are one of the top reasons for roadworthy failure. Queensland law requires a minimum tread depth of 1.5 mm, and tyres must be free from damage, bulges, and uneven wear.

How to Avoid It

• Check tyre tread with a gauge or the built-in wear indicators
• Replace any tyre that looks worn, cracked, or uneven.
• Make sure all four tyres match in size and type.

2. Faulty or Dim Headlights, Brake Lights, or Indicators

Why It Fails

Lights play a huge role in vehicle safety. If even one brake light, indicator, or headlight isn’t working properly, the vehicle will fail the roadworthy test.

How to Avoid It

• Do a quick walk-around check with a friend operating the controls
• Replace blown bulbs immediately — they’re cheap and simple to fix.
• Ensure your headlights are properly aligned.

3. Worn or Damaged Brake Components

Why It Fails

Brakes must operate effectively and evenly. Excessive wear on pads, discs, or leaking brake fluid often results in an immediate fail.

How to Avoid It

• Listen for squeaking, grinding, or vibration when braking.
• Have brake pads and rotors checked regularly — especially if the vehicle is older or used for towing.
• Top up brake fluid and address any leaks.

4. Cracked or Chipped Windscreens

Why It Fails

Damage in the driver’s line of sight is a common roadworthy fail. Even small cracks can quickly spread and compromise safety.

How to Avoid It

• Inspect the windscreen for chips or cracks.
• Repair small chips early before they turn into full cracks.
• Replace the windscreen if damage sits in the critical vision area.

5. Suspension Problems

Why It Fails

Shocks, struts, bushes, and ball joints wear out over time. Excessive play or leaking shock absorbers will prevent the vehicle from passing.

How to Avoid It

• Pay attention to clunking noises, bouncing, or poor steering response.
• Have suspension inspected annually, especially if you drive on rough roads
• Replace worn suspension components promptly.

6. Oil Leaks and Fluid Leaks

Why It Fails

Any visible fluid leak — engine oil, coolant, power steering, or transmission — will fail the test because leaks pose safety and environmental risks.

How to Avoid It

• Look for puddles or spots under your vehicle.
• Get leaks repaired before booking your roadworthy inspection.
• Have seals and gaskets checked during regular servicing.

7. Non-Compliant Modifications

Why It Fails

Unapproved modifications — like overly dark tint, unroadworthy lift kits, or aftermarket parts — can result in a fail if they don’t meet Queensland guidelines.

How to Avoid It

• Ensure all modifications comply with Queensland Transport regulations.
• Have a mechanic at Nugs Auto Haus assess aftermarket installations before inspection.
• Remove or repair any illegal or unsafe modifications.

8. Steering Issues

Why It Fails

Worn steering components can cause poor control or wandering on the road. Loose steering racks or worn tie rods commonly trigger roadworthy failure.

How to Avoid It

• Check for unusual steering play or stiffness.
• Get a wheel alignment if the car pulls to one side.
• Have steering components tightened or replaced as needed.

9. Rust or Structural Damage

Why It Fails

Structural rust can weaken the integrity of the vehicle, especially around suspension mounts and sills.

How to Avoid It

• Inspect under the vehicle and inside wheel arches.
• Treat minor rust early to prevent spreading.
• Repair or replace corroded panels before the inspection.

10. Seatbelts Not Working Properly

Why It Fails

Frayed, jammed, or non-retracting seatbelts are automatic fails.

How to Avoid It

• Check every seatbelt for proper retraction and locking.
• Replace seatbelts showing signs of wear or damage.
• Ensure all buckles click in securely.

How to Ensure You Pass Your Roadworthy in Brendale

• Book a pre-inspection check — Nugs Auto Haus offers thorough assessments
• Fix minor issues beforehand instead of waiting to be told.
• Keep your service schedule up to date to prevent unexpected failures.
• Choose a reputable Brendale inspection centre like Nugs Auto Haus for reliable advice and transparent guidance.

Final Thoughts

Most roadworthy failures in Brendale come down to simple, preventable issues. With a bit of preparation and the support of Nugs Auto Haus, you can save time, avoid stress, and pass the inspection on your first attempt.