Dont know the exact detials as got told them over the phone by mother but here we go:

When the ignition is turned on there is a beeping sound and two yellow lights come on, on the main speedo in the centre of the dash. The lights are inbetween (or above) the fuel and temp gauges.

One is something to do with the emissions, and can't remember excatly what the other one is. My mum looked up the handbook and it said it was safe to continue your journey at reduced speed but consult dealer soon.

Shes contacting the dealer 2mrw morning but just wondering if you Mini experts have any ideas??

Sorry for the sketchy description, pretty hard taking it all in on the phone from someone who dosent no that much about it in the first place!!