An OBD2 scanner is the single most useful tool a non-mechanic can own. Plugged into the port under your steering column, a half-decent unit will tell you exactly why your engine light is on, save you a wasted trip to the garage and — if you read it before selling — stop a buyer using the warning lamp to knock £500 off the asking price. After 32 years on the tools we've used everything from £15 Bluetooth dongles to thousand-pound dealer-grade kit. Here's what's actually worth buying in the UK in 2026.
Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email [email protected].