S-type key fob battery replacement

[DaveHx]

Hi

2005 S type 2.5L Auto Saloon

I wish to replace the batteries in my two ignition key fobs but will changing them break the wireless link to the car and stop them working normally ?

Do I have to reprogram the keys if the batteries are changed ?

I am having no problems at the moment but thought refreshing the batteries (CR2032's) might avoid issues in the near future. Handbook is not clear on this.

I dont have any programming gear or diagnostic kit ..... yet..........🙂

Hope someone can clarify please...

REgards

Dave H

 

[phill100]

Dave, no sweat just replace the batteries, it will not affect the keys performance at all. I've had several Jags from S Type to XK8 no problems changing batteries at all. Its easy to do as well. Regards P.

 

[DaveHx]

Hi Phil

Ok thanks for your rapid reply and the info.

Sounds good. I shall go ahead and replace them. 

Regards

Dave H

 

[LairdScooby]

In addition to confirming what you've already been told, i buy CR2032 batteries in packs of 10 from eBay for about 2 or 3 quid a time. Yes they're not fantastic but usually branded as Maxell or Panasonic or similar and for the cost you can't go wrong when the likes of Halfords, Sainsburys, Timpsons are all £6-7 per battery!

https://www.ebay.co.uk/itm/314572810753

I keep the spares in the drawer ready for when the battery gets low but usually use the spare fob for a few days every so often just to see if there's any difference in performance of the fobs and also to ensure the spare fob remains coded.