The IsItAGoodCar blog.
Honest, data-led guides on buying used cars in the UK. Just the facts you need to buy with confidence.
Latest intelligence
V5C Multi-Keeper Car History: How Many Previous Owners Is Too Many in the UK?
Discover how many previous registered keepers is too many when buying a used car in the UK. Learn how to spot rapid owner turnover and hidden mechanical risks.
Buying a Scrapped Car in the UK: DVLA Scrapped Markers & Certificate of Destruction Fraud
Avoid illegal registration traps and lost savings. Learn how to spot DVLA scrapped markers, Certificate of Destruction fraud, and cloned scrapped cars before buying.
Electronic Parking Brake & ABS Pump Failures: UK Used Car Guide
Avoid £1,800 braking repair bills and instant MOT failures. Learn how to spot seized EPB caliper actuators and failing ABS hydraulic pumps on UK used cars.
Used Car Brake Inspection UK: How to Spot Worn Discs, Corroded Lines & ABS Faults
Avoid costly repairs and MOT major failures. Learn how to inspect used car brake discs, pads, callipers, corroded lines, electronic handbrakes, and ABS units before buying.
Car Steering & Suspension Knocks: UK Used Car Buyer's Diagnostic Guide
Avoid £1,200 steering rack and suspension repair traps. Learn how to diagnose clunks, knocks, and rattles over speed bumps and pass MOT checks before buying.
Digital Service Records (DSR) UK: How to Verify Online Dealer History
Avoid costly skipped service traps and fake online history claims. Learn how to check, verify, and spot tampered Digital Service Records (DSR) on UK used cars.
Used Car Aftermarket Warranties UK: Fine Print Traps & Claim Checklist
Buying a used car with a third-party warranty? Uncover wear-and-tear exclusions, labour rate caps, consequential loss traps, and how to protect your claims.
Used Car Cooling System Failures: Head Gasket, Water Pump & Thermostat Red Flags
Buying a used car in the UK? Learn how to spot head gasket failures, water pump leaks, stuck thermostats, and overheating red flags before you buy.
Keyless Car Theft & Relay Attacks UK: How Security Flaws Affect Used Car Buyers
Learn how keyless relay attacks, CAN bus injection, and OBD key cloning work in the UK. Discover high-risk models, inspection tips, and how to protect your used car.
Air Suspension Problems in Used Cars: UK Buyer's Repair & Fault Guide
Buying a used Range Rover, Land Rover Discovery, BMW X5, or Mercedes E-Class? Learn how air suspension systems fail, red flag symptoms, and repair costs.
Used Car Rust & Corrosion Guide: Spotting Hidden Structural Failure
Discover how to spot dangerous underbody rust, rotten subframes, and sills on UK used cars. Includes DVSA MOT corrosion rules, high-risk models, and an inspection checklist.
How to Spot Outstanding PCP & HP Finance on a Used Car: UK Buyer's Guide
Buying a used car with unpaid PCP or HP finance can lead to repossession. Learn how vehicle finance works, Section 27 protections, and how to verify clear title.
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