NCT Checklist: What to Check Before Your Test
1. Check All Lights
Faulty lights are one of the most common reasons for NCT failures.
Inspect:
- Headlights
- Dipped beams
- Main beams
- Brake lights
- Reverse lights
- Indicators
- Number plate lights
- Fog lights
Replace any blown bulbs before your appointment.
2. Inspect Your Wiper Blades
Damaged or worn wiper blades can result in visibility issues and NCT failure.
Check for:
- Cracks in rubber blades
- Smearing across the windscreen
- Skipping or uneven wiping
Replace worn wiper blades if necessary.
3. Top Up Windscreen Washer Fluid
Ensure your washer bottle is filled and the washer jets operate correctly.
4. Check Tyres
Your tyres must:
- Meet the legal tread depth requirement
- Be free from cuts, bulges, and exposed cords
- Have even wear across the tread
Low tyre tread is a common cause of NCT failure.
5. Test Your Brakes
The braking system is one of the most important parts of the inspection.
Watch for:
- Squealing noises
- Grinding sounds
- Vibration during braking
- Soft brake pedal feel
Check:
- Brake pads
- Brake discs
- Brake fluid levels
6. Check Steering and Suspension
Your vehicle should:
- Drive straight
- Have no excessive steering play
- Show no unusual suspension noises
Common issues include:
- Worn shock absorbers
- Damaged suspension bushes
- Ball joint wear
7. Inspect Mirrors
Ensure all mirrors:
- Are securely attached
- Are free from major damage
- Provide clear visibility
8. Examine the Windscreen
The windscreen must:
- Be free from significant cracks
- Have no major chips in the driver’s field of vision
Even small chips can lead to failure depending on their location.
9. Check Seat Belts
Inspect every seat belt for:
- Fraying
- Damage
- Proper locking operation
Seat belts must retract correctly and function safely.
10. Verify Number Plates
Number plates should:
- Be clearly visible
- Be securely fitted
- Be easy to read
Dirty or damaged plates may cause issues.
11. Check Vehicle Fluids
Inspect:
- Engine oil
- Coolant
- Brake fluid
- Power steering fluid
Leaks underneath the vehicle can also result in failure.
12. Battery Condition
A weak battery can cause electrical issues and warning lights.
Check:
- Battery terminals
- Corrosion
- Secure mounting
13. Dashboard Warning Lights
Ensure no warning lights remain illuminated, including:
- Engine Management Light
- ABS Warning Light
- Airbag Warning Light
- Brake Warning Light
Modern vehicles can fail the NCT if critical warning lights remain active.
14. Check Exhaust and Emissions
The NCT includes emissions testing.
Watch for:
- Excessive smoke
- Loud exhaust noise
- Exhaust leaks
A properly maintained engine is more likely to pass emissions testing.
15. Clean Your Vehicle
A clean vehicle makes inspection easier.
Remember to:
- Clean the windscreen
- Remove clutter from the cabin
- Clean number plates
- Ensure VIN numbers are visible if required
Most Common Reasons Cars Fail the NCT
According to NCT testing trends, common failure items include:
- Worn tyres
- Faulty lights
- Brake defects
- Suspension wear
- Steering issues
- Windscreen damage
- Emissions failures
- Worn wiper blades
Many of these issues can be identified and fixed before the test.
How to Increase Your Chances of Passing First Time
- Perform a basic vehicle inspection one week before the test.
- Replace worn brake pads and wiper blades.
- Check all lights with a friend.
- Ensure tyre pressures are correct.
- Address dashboard warning lights.
- Have your vehicle serviced regularly.
Find NCT Parts and Accessories at AutoPartsOnline.ie
At AutoPartsOnline.ie, we stock a wide range of parts commonly replaced before an NCT, including:
- Brake Pads
- Brake Discs
- ABS Sensors
- Wiper Blades
- Batteries
- Bulbs
- Suspension Components
- Mirrors
- Filters
With fast delivery across Ireland and competitive prices, we help drivers prepare their vehicles for a successful NCT test.
Final Thoughts
A little preparation can save time, money, and the inconvenience of a retest. Use this complete NCT checklist before your appointment and address any issues early to maximise your chances of passing first time.