Jaguar XF stop start

[Lewis Lowe]

Does my 2018 xf / petrol model have 2 batteries?

My stop start is not working. Main battery is new. Thanks

 

[Big John]

Hi Lewis.

Pretty sure yours will be a single batttery (easy enough to check in the boot).

If the battery was simply changed without telling the computers, the car may not yet have realised the battery is now OK to do a restart. However don't worry as every so often the car will do a check itself by running the battery down to what it thinks is 75% charge but never below 12.2v. Once that is complete it is quite possible the Stop/Start will reappear as if by magic 🙂

If you are not doing regular long journeys I would also recommend getting a ctek battery maintainer to keep the charge topped up.