I reversed my battery cables when jump starting my 2005 cooper S conv.
Now it won't start I turns over just fine

 

OK....
Don't want to sound like a game show host....
But can you phrase the statement as a question?!

 

Please help

 

99% chance you will need to get it towed to a shop....preferably one that knows mini's....tell them EXACTLY WHAT HAPPENED.
I would check for a blown fuse....maybe one blew to protect the computer...
But unless you are accomplished as a diy'er....and know your way around the car...that is about all you can do.
When you find out what happened and the fix(I am assuming you searched for others who did the same thing)....chime back in...maybe it will help the next person.

 

Yes checked all fuses and looked good tested at the jump point up by the motor an I have 13.6 volts there .

 

Perhaps Waylen could offer his thoughts, thats who I would go to if he were still in Indiana. Now I just call him, check him out at www.waymotorworks

 

Bump for advice from those who know.

 

One thing you might try before taking it the shop is to disconnect both battery terminals for a half hour. Use that time to look at every fuse, including the fuseable link on the positive battery cable. Once reconnected you may find it starts but the radio won't come on. There may be some other failures, but take it to a good shop if everything is not ok.

I assume from your comment that the starter motor does spin up when you try to start it?