Off the top of my head ive bound to have forgotton something Rust checks.1) Front arches were the liner rubs near the top of the arch, (the open cell foam spacer at the top of the wing does not help as it can hold water.)2) Bottom of the wings near the door pillar were the wing bolts to the top of the sills. (design fault with arch liner meens rubbish gets in next to the strut and ends up in that corner.)3) Top of the sill were it bolts to the bottom of the wing (same location as above but the sill top this time) As the robots at the factory would grip this location when moving the shell and could crack the paint. (effects early cars)4) Bottom of the boot badge hole. Water sits in this location) 5) Jacking points on the sills, The sealent can be damaged when lifted on a wheels free ramp at the dealers or garage.6) 18" Alloy wheel corrosion due to the polished design (corrosion known as white worm)7) Wheel VW badges and also the earlier smooth boot VW badge also suffer white worm.
THIS IS SPARTA RUST
Get VW to sort it!! 12 year bodywork guarantee no??
If your car is an early one its a known issue your dealer should be able to find the TPI on it.