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Used Car Buying Guide: What to Check Before You Buy

March 2026 · 6 min read

Buying a used car should be exciting, not stressful. Whether you're a first-time buyer or upgrading your daily driver, here's everything you need to check before handing over your money.

Before You Visit

  • Set your budget — include insurance, tax, and at least £500 for unexpected repairs
  • Research the model — check common faults on owner forums
  • Check the MOT history — free at gov.uk/check-mot-history
  • Run an HPI check — verifies no outstanding finance, write-offs, or stolen flags

At the Dealership

  • Walk around the car — check for dents, scratches, mismatched paint (respray = possible accident)
  • Check the tyres — minimum 3mm tread for safety, all matching brand ideally
  • Look under the bonnet — clean engine bay, no leaks, correct oil level
  • Start it cold — listen for unusual noises, check exhaust smoke colour
  • Test ALL electronics — windows, mirrors, AC, radio, lights, heated seats

The Test Drive

  • Drive for at least 15 minutes on different roads
  • Test brakes — should be smooth, no pulling to one side
  • Check gearbox — smooth changes, no crunching or slipping
  • Listen for suspension knocks over bumps
  • Check steering — should be straight, no vibration at speed

Dealer vs Private

Buying from a dealer gives you legal protection under the Consumer Rights Act 2015. The car must be:

  • Of satisfactory quality — no hidden faults
  • Fit for purpose — it must actually work as a car
  • As described — the listing must be accurate

Private sales have almost no legal protection — "buyer beware" applies.

Buy With Confidence at CarPlatform

Every car we sell is health-checked, comes with warranty included, fresh MOT, and zero admin fees. Warranty terms vary by vehicle. Check the individual listing and confirm cover with our team.

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