Register a free account today to become a member!
Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

Dead battery cause

  Clio 1.5
Hi guys,
Im new to the forum and was just after some help. My battery went completely dead yesterday and im trying to determine what the cause was. After getting the car home I was checking under the bonnet and there was a buzzing noise coming from a unit attached to the radiator which I have attached a pic. This buzzing went on for a few mins after the car was tunred off and im wondering if this could be cause for the battery drain? Does anyone have an idea of what this unit is? I detached it from its mount just to get a good pic.

If its not this then im really confused about why the battery died.

Many thanks for your help,