A1 Auto Tech is a mechanic and auto electrician at 12 Hopper St in Te Aro, central Wellington, carrying a 4.9 Google rating. Auto electrical work is its own craft: modern vehicles are packed with computers, sensors and wiring, so a fault that feels mechanical often starts in the electrics. A good auto electrician diagnoses before replacing parts, using scan tools and testing to trace intermittent problems — flat batteries, tired alternators, dim headlights, warning lights that come and go. Wellington conditions are hard on car electrics, too: salty coastal air corrodes connections, while short city runs and hill starts work batteries and starter motors harder than open-road driving. Regulars tend to have the charging system checked before winter rather than waiting for the morning the car won't start. On Hopper St, minutes from the city centre, A1 Auto Tech puts that kind of careful fault-finding within easy reach of central Wellington drivers.