Okay, just a quick question to check before I get stuck in with the screwdrivers.

I need to replace the battery in my Passat key fob. The usual type - no key as such but it isn't the full blown keyless entry system. Anyone know how to get it open? Do I remove the little VW badge and look for a screw underneaath like on a "proper" VW key, or does it just lever open?

Also, anyone know what battery it has inside, so I can buy one before the surgery starts?

The manual, helpfully, says get the dealer to change the battery. Yeah, I'm going to drive there and back and wait half an hour for them to charge me an arm and a leg for a battery I can buy for a quid at Screwfix.