Really sepulchrave, you've bothered again, you really do flatter and honour us poor humble misguided children with your attention. 😉
I never realised you were also a Certified Lubrication Specialist and scientist why you've been shy about mentioning this before I can't understanding given your expertise in all other matters. Please tell us about the oil only being 100% oil and nothing else, any old oil will do so I can't understand VW engineers ever bothering with their numbers, but engineers do love numbers, them being scientific like. 😉
If the OP and I want to change the oil in the gearbox why do you care, I put what I PERSONALLY do not that I'm a Certified Lubrication Specialist or a scientist or an engineer, and it's not like a scientist or gawd forbid an engineer has ever got something wrong or misunderstood.
Do you need to visit Specsavers, you seem to have misread or misunderstood what I'd put, but possibly just lazy skim-reading and usual shorthand standard reply, I deserve no more.
Prey do tell us enlighten us to what the lifetime of the gearbox is according to VW, engineers, no less, seems to be only until the warranty runs out and then any problem would probably be because of the car owner, perhaps putting in a non-VW light bulb in a sidelight.
I offered alternatives to consider other than changing the gearbox oil and stated that changing the gearbox oil wouldn't help under a number of circumstances.
You know changing the oil won't ever help so - if the OP drains the oil he will see and feel it's pristine, he'll feel a little foolish and tip it back into the gearbox, get a refund on the oil he's bought, return here and praise you as he should and admonish me for suggesting or forcing him to bother trying to change the oil with my ritual magic beliefs. I will throw a few chicken bones southwards at midnight in your honour. :deepbowing: