Green light
Start-stop Indicator
The start-stop system has switched the engine off to save fuel, or the system is unavailable or faulty.
Normal risk
Green means normal operation. Amber or crossed out means the system is off or not available.
Short answer · Why does start-stop not work?
The system only stops the engine when several conditions are met: a charged battery, a warm engine, low climate demand and more. A weak battery is the most common reason it stops working.
What to do
- Understand the coloursGreen: engine stopped by start-stop. Amber or crossed: system not active.
- Check the batteryA weak or wrong battery type often disables start-stop.
- Have faults readIf the amber light stays on, a workshop reads the codes.
How is the light behaving?
| What you see | What it usually means | What to do |
|---|---|---|
| Steady | Engine stopped by start-stop (green) | Nothing; it restarts when you drive off |
| Flashing | System fault or condition not met | Have it checked if it continues |
Possible causes
- Conditions not metCold engine, high climate demand or steep slope.
- Weak batteryThe most common reason.
- System faultA sensor or the battery monitoring has a fault.
Don't confuse it with
Questions about Start-stop Indicator
Does start-stop harm the engine?
Engines with start-stop are designed for it. Use the battery type the manufacturer specifies.