MINIUSA has issued a recall campaign to update tank leakage diagnostic software. Here's an excerpt of the letter some 02-04 MINI owners are currently receiving:
MINIUSA has determined that certain 2002, 2003 and 2004 model year MINI automobiles may not fully meet the Federal Environmental Protection Agency (EPA) and the California Air Resources Board emission control requirements. In order to remedy this situation, MINI USA is conducting a Voluntary Emissions Recall Campaign. We are asking you as the owners of an affected vehicle to contact your Authorized MINI dealer at your earliest convenience to have the repair carried out.
The letter goes on to explain that the problem is a software error in the tank leakage diagnostic system that prevents the detection of a possible evaporation emission leak.
If you have a car that may be affected but have not received a recall letter you may want to contact MINIUSA (1 866 ASK MINI) to see if your car qualifies for the recall.