These instructions apply to the Cupra Leon Mk1 (KL) 2020-present. For other models, please choose your vehicle here.
Last updated:
Your Cupra Leon (KL, 2020–present) shuts the engine off at a standstill to save fuel. When you’d rather it didn’t — crawling traffic, a hot day, or before any under-bonnet work — one button switches it off.
Turning Start/Stop Off
- Locate the AⓇ button (an “A” circled by an arrow), usually near the gear lever.
- Press it once; the indicator confirms the system is off and the engine stays running at stops.
Why It’s On Again Next Time
The Leon switches Start/Stop back on at every ignition cycle — there’s no permanent off from the factory. Tap the button once at the start of each drive if you don’t want it.
Reasons to Switch It Off
- Engine-bay jobs — no surprise restart.
- Heavy traffic — no constant stop/start cycling.
- Hot or cold extremes — steady climate output.
The system also declines to stop on its own when the battery is low, the cabin still needs heating/cooling, or you’re on a slope — all normal.
Frequently Asked Questions
How do I switch off auto stop/start on a Cupra Leon?
Press the AⓇ button near the gear lever; the indicator shows it’s off.
Can it stay off for good?
No — it re-arms each ignition cycle. Press the button per drive.
Why did it switch itself back on?
Cycling the ignition re-enables it automatically.
Why won’t the engine cut sometimes?
Low battery, high climate load or a gradient keeps it running by design.
If a start/stop fault symbol shows, it usually points to a weak 12 V battery — see our Leon battery guide, or look the code up on autodtcs.com.
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.
This website is an independent resource and is not affiliated with, endorsed by, or sponsored by Cupra. All trademarks and brand names belong to their respective owners.