Hi, Just wondering if any one knew what battery would I need for my car please? There's a bit of a whirring sound coming from under the engine and guessing it's the alternator working too hard as the battery is on its way out? Would a 12volt battery be OK as I was going to buy one off eBay save paying 84quid for a new one from the dealer. Cheers

Halfords would be a good place to check as they have books which tell you which one fits.
I wouldn't buy one from eBay just in case and £84 seems a little steep.