Buying a used car can save you thousands compared to buying new. But without the right checks, you might end up with a vehicle hiding costly surprises. Here’s the complete guide to buying with confidence.
Before the Visit: Online Checks
Before you even leave home, several verifications are possible:
Check the VIN Number
Ask the seller for the VIN before visiting. If they refuse, that’s a red flag. With the VIN, you can:
- Verify the vehicle isn’t stolen
- Check consistency between the listing and actual specifications
- Look up manufacturer recall history
Estimate the Real Value
Compare the asking price with market estimates. An abnormally low price often signals hidden problems. Use a valuation tool to find out the real market value based on make, model, year, and mileage.
During the Visit: The 10 Essential Checks
1. Required Documents
- Vehicle title in the seller’s name
- Valid MOT/inspection certificate
- Service history and receipts
- Clear title check (no liens or outstanding finance)
2. Exterior Visual Inspection
Inspect the bodywork in good lighting. Look for respray signs, color differences between panels, and uneven panel gaps. Run your hand over surfaces to detect flaws invisible to the eye.
3. Tyres
Tyre wear tells a story. Uneven wear indicates alignment or suspension problems. Check tread depth (legal minimum: 1.6mm) and the manufacture date on the sidewall (DOT code).
4. Under the Bonnet
Check oil, coolant, and brake fluid levels. Dark, thick oil indicates neglected maintenance. Look for leak traces, corrosion marks, and cracked hoses.
5. Mileage Verification
Compare displayed mileage with wear on the steering wheel, pedals, and gear lever. A car showing 30,000 miles with worn-smooth pedals and a shiny steering wheel has likely done much more.
6. Test Drive
Test the vehicle for at least 20 minutes, on both roads and in town. Listen for abnormal noises, vibrations, braking behaviour, and steering feel. Check that all gears engage smoothly.
7. Electronics
Test all equipment: air conditioning, electric windows, mirrors, GPS, reversing camera, parking sensors. Electronic repairs are often expensive.
8. OBD2 Diagnostic
Plug in an OBD2 reader to check for engine fault codes. An honest seller has nothing to hide. Stored codes reveal past problems, even if the check engine light was cleared.
9. Chassis and Underside
If possible, inspect the underside of the vehicle. Look for corrosion, suspicious welds (signs of accident repair), and exhaust system condition.
10. Service History
Verify that services were done at manufacturer-recommended intervals. Is the timing belt up to date? Were filters changed? Rigorous maintenance is the best indicator of a reliable vehicle.
Most Common Scams
- Clocked mileage: affects 30-50% of used cars in some markets
- Disguised accident damage: respray to hide major collision damage
- Curbsiders: dealers posing as private sellers to avoid warranty obligations
- Dubious imports: different standards, untraceable history
- High-pressure selling: pushing to sign immediately, refusing time to think
After Purchase
Once the deal is done, complete the registration transfer promptly. Keep all documents (listing, messages with seller, receipts) for at least the warranty period.
Before you visit, check the vehicle online. Our verification tool analyses the VIN, estimates the real price, and detects inconsistencies in seconds.
Sources: NHTSA — National Highway Traffic Safety Administration, FTC — Buying a Used Car, EU Consumer Rights Directive.