Can anyone help, its kind of an emergancy as i need to fit this vectra radiator at the weekend.
I planned putting pictures on here to show my issue but left my zip drive at home

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Ive removed the vectra 2.6 sri radiator - its really really badly clogged after oil cooler failure. Bought a new genuine vx radiator to replace it with. By the way that was a real swine of a job

Now when i check both radiators side by side there different ( new one is different part number from old ) and new part number is 52479100 - its the only one listed for y26se.
My issue is on the right hand side of radiator - looking from front of car there are two perforated holes that are blocked by a plastic cap that easily comes out. These holes are just above and below where two of the rubber coolant pipes go into it...
The perforations are pinhead sized and the holes about the size of 20p pieces.
Im concerned as theres nothing that fits in them from car and on the old radiator theres no such holes / markings.
Any ideas folks, is this some sort of new improved design feature or simply wrong? Ill post the pictures when i get home.