Hi, did this fault stay off or was there further issues? Same code has come up for me along with P026A charge air cooler below efficiency threshold. thanks

Hi Carl, not sure if your issues are battery related, but might be. Have you checked the fuses, sounds like a circuit is out of synch. If your secondary battery is still the original from 2013, presumably your main battery could also have been original equipment, then I would go for a replacement of the secondary battery. Modern cars, especially Jaguar are VERY sensitive to voltage fluctuations and a poor battery is a prime cause of these. I believe the secondary battery only comes into play to feed the voltage sensitive circuits when the car is operating in start / stop mode. Does your start / stop mode operate under normal circumstances? N6 JMX

Hi all During a car service I was advised to.  replaced the main battery on my Jaguar 2.2 XF 2013 premium luxury which has been done. Prior to having the service i had no heated seats, wing mirrors not defrosting along with rear window which is still the case. i have been told I need to replace the secondary battery is this causing the issues I am having with the above? Carl

Cargo

Human