Jaguar XJ8 / XJR / Vanden Plas (X308) key fob battery
3 of the 6 model years listed for the Jaguar XJ8 / XJR / Vanden Plas (X308) have a proven battery. The most common answer is CR2016. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 1998-2000Remote (separate)
CR2016
FCC ID K8597T315Two sites agree: uhs-hardware.com and britishparts.co.uk (checked Nov 1, 2026)
Find CR2016 on Amazon - 2001-2003Remote (separate)
Not confirmed yet
Changing the battery
Separate remote fob
- A separate fob has no key blade inside, so it opens with nothing but a coin or a small screwdriver.
- Turn it over: some older fobs use one small screw, newer ones just clip. Pry at the seam once any screw is out.
- Swap the cell or cells, keeping the same side up as the old ones.
- Reassemble and test from a short distance.
A CR2016 is 20 mm across and 1.6 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
Coin cells are a choking and burn hazard for children. Store the spares in their original pack, out of reach.