I have an 18 inch space saver wheel which i bought for a previous kodiaq but our replacement car has 19 inch rims.  Will it be okay to use the 18 wheel?  Do i need to buy a new 19" one?

The 145x85 tyre on an 18” rim is the standard Skoda approved spare wheel for the Kodiaq regardless of original wheel/ tyre size.

Edited 14 March, 20224 yr by Kenny R

Ours is on 19" rims (a 2014 150 horse, DSG 4x4 7 seater) and the OE space saver is a 145/85/18.

145/85R18 111M space saver tyre fitted to 4Jx18 ET28 steel rim

https://eshop.skoda-auto.cz/cs_CZ/kompletni-rezervni-kolo-18/p/565601011C