So mine is not ulez compliant and yet I have seen others of the same year and engine configuration (I think they were all SDV6's in 2012) do not need to pay for the ulez....so what gives? Is there a difference or is there a test or add on I can use to not have to pay the ulez?

Diesel has to be Euro6. So that’s AdBlue, I don’t think that any L330s of any year were fitted with AdBlue systems. Gone: 10MY L320 RR Sport HSE, Ipanema Sand
Gone: 20MY Jaguar iPace HSE, Silicon Silver
Gone: 17MY RR Evoque SE Tech, Loire Blue
Gone: 08MY Discovery 3 XS, Stornoway Grey
Gone: 07MY FFRR TDV8 Vogue, Stornoway Grey

I would guess it's a simple error in the database being used to drive the ULEZ system. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Hence my confusion. Looking on auto trader there are a few 2012 SDV6 HSE's listed as ulez compliant and sure enough if you check the reg on the ulez/tfl site they come back as having no charge.

Very strange

Are they the lower hp versions? I know they have a standard hp version and a low hp version which has lower emissions. 2011 RRS HSE Luxury 3.0 TDV6 Fuji White on Ebony/Ivory
Born and raised in So Cal. Moved to the UK in 2018 for a few years. Now in Poland and looking at moving back to the UK.

Not in the UK market AFAIK. Gone: 10MY L320 RR Sport HSE, Ipanema Sand
Gone: 20MY Jaguar iPace HSE, Silicon Silver
Gone: 17MY RR Evoque SE Tech, Loire Blue
Gone: 08MY Discovery 3 XS, Stornoway Grey
Gone: 07MY FFRR TDV8 Vogue, Stornoway Grey

It must be an error on the CAZ checker. Ive done some research and one or two 2011 L320s are said to be ULEZ compliant with the 6 speed autobox. Most of the Black edition with 8 speed box are compliant according to the web site but are seen to be Euro 5? Proper odd

The 8th letter/digit of the Vin No. will tell you if it is the low power engine, in the case of the diesel it will be either F, G or M, M being the low power version which also has a DPF, according to L/R spec. if I understand it correctly, which might explain why some are compliant but that is a pure guess if that is the case.

Or perhaps the owners are are adding two stroke oil to the fuel, apparently that does wonders for the emissions which may be why some are except as well.

Cheers
Col