Rear Wheel Bearing (Which is the correct one?)

[jrdj]

Evening!

Im replacing my offside rear wheel bearing and having issues finding the correct part.
Im on a budget right now so going with the cheapest i can find.

I see some are 28mm id and some are 30mm id, and them some are 3 bolt and some are 4 bolt.
I have about 4 different wheel bearing up on eBay right now, all that say they are compatible with my car.

Can someone help me out before i go mad please?

Thanks as always guys.

 

[Dan2.0TFSI]

Buy cheap, buy twice. I brought some eBay jobbies for a Focus and had to replace them less than 8,000 miles later.

Anyway, I'll cut to the chase. I did my rear wheel bearing last week (none Quattro). Was a right pig to get the brake carrier off. I brought mine from ECP for £80-ish. Just pop the reg in. The parts are cheaper if you reserve online first!