If the battery is fine but the car won't start, the most common causes are a faulty starter motor, immobiliser fault, fuel pump failure, or crank/cam sensor failure. If the engine cranks normally but won't fire, suspect fuel or spark; if it won't crank, suspect starter, ignition switch, or earth strap.
Diagnosing a no-start usually takes a mechanic five minutes if they ask the right questions. Here's how to narrow it down before you call.
Can a fuel pump just fail without warning? — Yes — they often die without symptoms, especially on cars over 8 years old. Listen for the 2-second hum from the back of the car when you turn the ignition to position II.
How much is a starter motor UK? — £180–£450 fitted at an independent garage depending on access.
Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email bob@bobsmechanicalrepairs.co.uk.