can someone tell me what F3 and F19 fuse pics in the engine compartment fuse box refer to ,

I would guess the Webasto night heater, although an ex girlfriend of mine might have preferred F10 and R6 more...... 2016 (L405) Autobiography in Black with Ivory - for ULEZ
2014 (L405) VSE in Black with Ivory
2011 (L322) VSE in Black with Ivory
2005 (3.2 V6) Porsche Cayenne in Black with Savanna
1999 (P38) VSE in Burgundy (?) with Sand

I can't help but think it's very condescending of LR to not provide fuse identifications in the owner's handbook, stating that they should be accessed or replaced only by a qualified technician.