These instructions apply to the Porsche 718 Boxster / Cayman 982 2016-Present. For other models, please choose your vehicle here.
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The automatic stop/start on your Porsche 718 Boxster or Cayman (2016–present) — the 982 — shuts the engine off at a standstill to save fuel. If you’d rather keep it running, switch it off with the dedicated button.
Turning Stop/Start Off
- Find the Auto Start/Stop button — the ‘A’ with a circular arrow, on the centre console.
- Press the button once.
- The indicator / dash message confirms the system is off — the engine now idles at a stop.
Turning It Back On
Press the button again, or restart the car — stop/start defaults to ON each time you start the engine. Selecting Sport or Sport Plus also holds the engine running.
Why It Sometimes Keeps the Engine Running
- The battery charge is low or the battery sensor isn’t satisfied.
- The cabin is still heating or cooling.
- The engine is still cold, or a Sport mode is selected.
If Stop/Start Has Stopped Working
- A weak or ageing battery is the most common cause — the system disables itself to protect it.
- After a battery change, fit the correct type; registering it to the energy manager needs Porsche equipment.
- A stored fault can disable it — look up the code on autodtcs.com.
Frequently Asked Questions
How do I turn off stop/start on a Porsche 718?
Press the Auto Start/Stop ‘A’ button on the centre console.
Can I disable it permanently?
Not from the button — it resets to ON at each engine start. Sport modes also keep the engine running.
Why does the engine keep running with it on?
The system holds the engine on if the battery is low, the cabin is still heating/cooling, or the engine is cold.
Why won’t stop/start work at all?
Usually a weak battery; the 718 disables stop/start to protect it.
If a warning light came on with the fault, decode it on autodtcs.com.
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