insert small screw driver in gap in plastic on back of key neer the metal part of the key....lift up...pull back off...and replace battery..
any questions email me at Newdl84@gmail.com
[EDIT] Just FYI the battery is a CR2032
You can change the battery in your Mini Cooper by releasing the hood lock located on the bottom portion of the dashboard. The key to unlock the battery cover should be on the side of the battery cover.
I will assume you mean "Does a Mini Cooper have a battery?" Yes, they do.
No
very carfully
2005 Mini Cooper replace car battery. Alternative to MINI part
The 2003 MINI Cooper has 16 valves.
The 2003 MINI Cooper is a gas-powered vehicle.
The 2003 MINI Cooper has an inline 4 engine.
The 2003 MINI Cooper has a 5-speed manual.
To change the battery in the Mini Cooper keyless remote, it is necessary to first open the device. This can be done by removing the key chain and gently prying the seam at the opening end apart. Now the battery is accessible for easy replacement.
You can buy the Mini cooper 2003 dashboard screw online at http://www.ebay.co.uk/bhp/mini-cooper-dash.
The 2003 MINI Cooper has a drag coefficient of .36 Cd.