These instructions apply to the Vauxhall Astra Mk7 (K/B16) 2015-2021. For other models, please choose your vehicle here.
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The Vauxhall Astra K (Mk7, 2015–2021) — Opel Astra — has a Stop/Start system that switches the engine off at a standstill to save fuel. If you’d rather keep it running — in traffic, on a hot day, or before working in the engine bay — you switch it off with one button.
How to Turn Off Stop/Start
- Find the ‘AⓇ’ (eco / Stop-Start OFF) button on the centre console or dashboard.
- Press it once — the warning light in the button or cluster confirms Stop/Start is off, and the engine will keep running when you stop.
It Resets Every Drive
Like nearly every car with this feature, the Astra K re-enables Stop/Start each time you switch the ignition off and on. There’s no permanent factory ‘off’ — press the button once per journey if you don’t want it.
Why Switch It Off?
- Before engine-bay work — stops an unexpected restart.
- Stop-go traffic — avoids constant restarts.
- Maximum cabin cooling/heating on extreme days.
Stop/Start also won’t cut the engine on its own when the battery charge is low, the cabin is still heating/cooling, or the engine is cold — that’s normal.
Frequently Asked Questions
How do I turn off Stop/Start on a Vauxhall Astra?
Press the AⓇ (eco) button on the console; the indicator confirms it’s off.
Can I disable it permanently?
No — it resets to on at every ignition cycle. Press the button each drive.
Why did Stop/Start come back on?
Switching the ignition off and on re-enables it automatically.
Why won’t the engine stop sometimes?
A low battery, climate demand or a cold engine holds it running — that’s by design.
If a Stop/Start fault light shows instead of the normal indicator, look it up on autodtcs.com — a tired 12 V battery is the usual cause. See our Astra K battery guide.
Disclaimer: The information on this page is provided for general guidance only. Always follow your official service manual and safety precautions when working on your vehicle. We are not responsible for errors, omissions, or any damage resulting from the use of this information.
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