How to Check a Used Car Before Buying: 20-Point Checklist

Summary

• Do your homework first: Check the MOT history and run a car history check before you even visit the car.
• Inspect everything: Walk around the outside, check inside, look under the bonnet, and take a thorough test drive.
• Trust your instincts: If something feels wrong, walk away. There's always another car.

Buying a used car can save you thousands. But it can also cost you thousands if you buy the wrong one.

This 20-point checklist tells you exactly what to look for. Follow it and you'll spot problems before they become your problems.

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Before You Visit the Car

Do these checks from home. They take minutes and can save you a wasted trip.

1. Check the MOT history: Use the free MOT checker. Look for patterns of failure. If the same fault keeps coming back, it hasn't been fixed properly.
2. Run a vehicle history check: A car history check reveals outstanding finance, write-off status, stolen records, and mileage discrepancies. This is essential.
3. Research the fair price: Know what the car should cost. If it's priced well below average, ask yourself why.
4. Check the V5C details: Ask the seller if the V5C is in their name. If it's not, be very cautious.

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Exterior Checks

Walk slowly around the car. Look at it from different angles.

5. Check for rust: Look around wheel arches, door bottoms, sills, and boot edges. Bubbling paint means rust underneath.
6. Look for mismatched paint: Different shades on different panels suggest accident repair. Look in bright daylight.
7. Check panel gaps: Run your finger along the gaps between panels. They should be even. Uneven gaps mean bodywork has been replaced.
8. Inspect the tyres: Check tread depth on all four. The legal minimum is 1.6mm. Uneven wear suggests alignment or suspension problems.
9. Check the lights: Walk around and check all lights work — headlights (dipped and full beam), indicators, brake lights, and fog lights.

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Interior Checks

The inside tells you a lot about how the car has been treated.

10. Check seat wear: Heavy wear on a car with low mileage is a red flag. The mileage may have been clocked.
11. Smell the interior: A musty or damp smell suggests leaks or flood damage. Lift the carpets and check for wet patches.
12. Test the electrics: Every window, mirror, the air con, heater, stereo, and central locking. Fix electrical faults can be expensive.
13. Check the dashboard: Turn the ignition on (don't start). All warning lights should come on and then go off. If any stay on, there's a problem.

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Under the Bonnet

You don't need to be a mechanic to spot obvious problems here.

14. Check the oil: Pull out the dipstick. The oil should be golden or dark brown. Milky oil means a head gasket problem. Gritty oil means poor maintenance.
15. Check the coolant: Open the coolant reservoir cap (when the engine is cold). The coolant should be clean. Oily or brown coolant is a warning sign.
16. Look for leaks: Check for any puddles, wet patches, or drips underneath the car. Oil, coolant, or brake fluid leaks are serious.
17. Inspect the battery: Look for corrosion on the terminals. A heavily corroded battery may need replacing soon.

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The Test Drive

This is your best chance to spot problems. Never skip it.

18. Test on different roads: Drive in town, on a dual carriageway, and over speed bumps. Each shows different things. Read our test drive guide for more detail.
19. Listen carefully: Clunks over bumps mean suspension wear. Squealing brakes need attention. A whining gearbox is expensive to fix.
20. Test the brakes hard: When safe to do so, brake firmly. The car should stop straight without pulling to one side. Vibration through the pedal means warped discs.

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Documents to Check

Before you hand over any money, check the paperwork.

• V5C logbook: The seller's name and address should match. The document should be the current red style.
• Service history: Stamped books or digital records from main dealers are ideal. Gaps in service history reduce the car's value.
• MOT certificate: Check the current MOT expiry date. A fresh MOT doesn't mean the car is perfect — it just passed on that day.
• Receipts for work done: These show the owner has invested in the car's upkeep.

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Red Flags — Walk Away If You See These

• The seller won't let you test drive it.
• The V5C isn't in the seller's name.
• The mileage seems too good to be true.
• The seller pressures you to decide quickly.
• The car's history check shows outstanding finance or a write-off record.
• The price is significantly below market value with no good explanation.

Remember: If something doesn't feel right, trust your instincts and walk away. There are thousands of used cars for sale every day. The right one is out there.

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A few hours of checking can save you from months of problems. Use this checklist, run a car history check, and take your time. A good used car is one of the smartest purchases you can make.

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