10 Red Flags When Buying a Used Car: Expert Checklist
10 Red Flags When Buying a Used Car: Expert Checklist
Buying a used car can be a minefield. Knowing what to look for can save you from expensive mistakes and potential safety issues. Here are the top 10 red flags to watch out for.
1. Inconsistent Mileage Records
Warning Sign: Mileage that doesn't match service records or MOT history.
Why It Matters: Clocked mileage is illegal and indicates the seller is dishonest. A car with 50,000 miles is worth significantly more than one with 150,000 miles.
How to Check:
- Request full service history
- Check MOT history online
- Look for wear on pedals, steering wheel, and seats
- Use CarCred's vehicle check to verify mileage records
2. Missing or Incomplete Service History
Warning Sign: No service book or gaps in maintenance records.
Why It Matters: Regular servicing is crucial for vehicle longevity. Missing records suggest neglect or hidden problems.
What to Look For:
- Stamped service book
- Receipts for major work
- Evidence of oil changes
- Timing belt replacement (if applicable)
3. Multiple Previous Owners
Warning Sign: More than 3-4 owners for a car under 10 years old.
Why It Matters: Frequent ownership changes often indicate problems. Owners may be passing on a troublesome vehicle.
Consider:
- Average ownership duration
- Reasons for selling
- Pattern of quick sales
4. Signs of Accident Damage
Warning Sign: Mismatched paint, panel gaps, or overspray.
Why It Matters: Previous accidents can affect safety, value, and insurance costs. Poorly repaired damage may cause ongoing issues.
Inspection Points:
- Check panel alignment
- Look for paint overspray on rubber seals
- Inspect for ripples in bodywork
- Check for welding marks
- Run an HPI check for insurance claims
5. Rust and Corrosion
Warning Sign: Rust on body panels, underneath, or in the wheel arches.
Why It Matters: Rust spreads and can compromise structural integrity. Repair costs can be substantial.
Where to Check:
- Wheel arches and sills
- Under the car (use a torch)
- Door bottoms
- Boot floor and spare wheel well
6. Unusual Engine Noises
Warning Sign: Knocking, ticking, or grinding sounds from the engine.
Why It Matters: Engine problems are expensive to fix. Unusual noises often indicate serious mechanical issues.
Listen For:
- Knocking when accelerating
- Ticking at idle
- Grinding when starting
- Excessive engine vibration
7. Smoke from the Exhaust
Warning Sign: Blue, white, or black smoke when running.
Why It Matters: Different smoke colors indicate specific problems:
- Blue smoke: Burning oil (worn engine)
- White smoke: Coolant leak (head gasket failure)
- Black smoke: Running too rich (fuel system issues)
8. Dashboard Warning Lights
Warning Sign: Illuminated warning lights, especially engine management or ABS.
Why It Matters: Warning lights indicate faults that need addressing. Some sellers disconnect bulbs to hide problems.
Check:
- All warning lights illuminate when ignition is on
- No lights remain on when engine starts
- No error codes stored in the system
9. Seller Reluctance
Warning Sign: Seller won't allow inspection, test drive, or vehicle history check.
Why It Matters: Honest sellers have nothing to hide. Reluctance suggests problems they don't want you to discover.
Red Flags:
- Won't meet at their address
- Rushes the viewing
- Refuses independent inspection
- Won't provide V5C document
- Pressures for quick sale
10. Too Good to Be True Price
Warning Sign: Price significantly below market value.
Why It Matters: Bargains are rare. Low prices often indicate hidden problems, stolen vehicles, or scams.
Verify:
- Check similar vehicles on Auto Trader
- Research typical prices
- Question why it's so cheap
- Be wary of "must sell quickly" stories
Essential Checks Before Buying
1. HPI Check
Reveals:
- Outstanding finance
- Insurance write-off history
- Stolen vehicle records
- Mileage discrepancies
2. MOT History
Shows:
- Previous failures
- Advisory notices
- Mileage records
- Common problems
3. Independent Inspection
Consider:
- AA or RAC inspection
- Local mechanic assessment
- Pre-purchase survey
Conclusion
Buying a used car requires diligence and patience. Don't let enthusiasm override caution. If you spot multiple red flags, walk away - there are plenty of good cars available.
Always conduct thorough checks before committing to a purchase. CarCred offers comprehensive vehicle history reports that reveal hidden problems and give you confidence in your buying decision.
Remember: If something feels wrong, it probably is. Trust your instincts and don't be pressured into a quick decision.