The glow plug light (a coil or spring symbol, usually amber) normally illuminates for 1–3 seconds when you turn the ignition, then goes out — the signal that your diesel is ready to start. A flashing or permanently on light means the system has a fault or the engine management has logged an issue.
Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email [email protected].