Just bought my first Land Rover - a 2004 Defender 90 Hard Top. Now, I'm a total novice with engines and the like, but am keen to learn. The issue: I've been trying to find out on the internet why my VIN has an engine number "5" rather than the usual "8" for a TD5... apparently it means it's...

Hi all - just bought my first Land Rover - a 2004 Defender 90 (photos to come!) which I will be driving around Shropshire in! I've been trying to find out on the internet why my VIN has an engine number "5" rather than the usual "8" for a TD5... apparently it means it's "EU5 spec". I've tried...