These instructions apply to the Jaguar XE Mk1 (X760) 2015-Present. For other models, please choose your vehicle here.
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Disconnecting the 12 V battery on your Jaguar XE (2015–present) — to fit a new one, store the car, or work near the airbags — is a DIY job, but the XE has a battery monitoring system (BMS) worth understanding first. Here’s the safe sequence.
Before You Disconnect
The 12 V battery is under the bonnet (engine bay), behind a cover.
- Switch the ignition off and note your presets and settings.
- Ensure all electrical consumers are switched off.
- Disconnect the negative (−) terminal first, then the positive.
Working near airbags or pretensioners? Allow a minute or two after disconnecting before starting.
Reconnecting
- Reconnect positive first, negative last, and refit the battery monitoring system (BMS) connector.
- Switch the ignition on and re-initialise the power windows (one-touch is lost).
- Re-enter the clock and settings.
Fitting a new or different battery? The BMS ideally needs resetting/registering with Jaguar diagnostic equipment so it charges the new battery correctly. A like-for-like swap usually settles after a few drives — and a settling BMS is often why stop/start stays inactive for a while afterwards.
If Something Isn’t Right Afterwards
- Windows won’t auto-close — run the window re-initialisation.
- Warning lights after reconnection often clear after a short drive; a persistent one stores a code (decode on autodtcs.com).
- Stop/start inactive afterwards is usually the BMS still learning the battery state.
Frequently Asked Questions
Where is the battery on a Jaguar XE?
Under the bonnet in the engine bay, behind a cover.
Which terminal first?
Negative (−) off first, reconnect it last.
Do I need to register a new battery?
Ideally yes — the BMS should be reset/registered with Jaguar equipment so it charges a new battery correctly.
What needs resetting afterwards?
The power windows re-initialise, plus the clock and presets; the BMS relearns the battery state.
If a warning light stays on after reconnecting, look up the code 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.
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