Did the Tiguan facelift change everything mechanically?
No. The broad Mk2 ownership pattern still overlaps a lot, especially for the common brake, suspension, and coolant complaints. The facelift matters more for fitment confidence, trim interpretation, interior and front-end details, and keeping late-car advice from being mixed with earlier listings too casually.
Can I use pre-facelift parts advice on a facelift Tiguan?
Sometimes, but not blindly. A lot of the maintenance logic still overlaps, but trim packaging, front-end updates, and catalog split points make it safer to shop late-car pages for late cars and early-car pages for early cars.
Is the facelift Tiguan the better one to buy?
Usually yes if you want the cleaner later-update ownership path, but the right answer still depends on condition, service history, trim, and how careful the earlier owner was.