My boot gas struts died and i recently purchased these for my MK7 Wagon: https://www.ebay.com.au/itm/New-Pair...-/153388294543
They seem to be the wrong length (despite being advertised for a wagon) at 530mm. I believe they are sized for a hatch. My existing OEMs are 548mm (part no. 5G9827550).

I've some back and forth with the seller, and he's said "I have 550mm, will that do?." The thing is that i'm no sure it will do. How precise do i need to be? The extra 2mm might result in the boot hitting the back of the car.