2010 Mini Cooper Revving at Start
 

Hi,

My 2010 Mini with only 42000 did something very odd this morning. When starting, the first push did nothing while the second started the engine which then revved steadily up to 7k! Prodding the accelerator did not affect it. Turned off and tried again, same thing. Third time the idle was stable but high at 1500 rpm. Eventually settled in and no problems with the drive to work.

Parked at work with warm engine and tried to restart. Same issue with first push having no noticeable impact, and second push causing engine to race up to 7k.

Any ideas on what is causing this behaviour? Almost everything is original with exception of brakes, filters, tires. Battery is original,

Thanks for any insight!
Jay