Mercedes Benz

Fuel System - MINI Fuel System Cleaner Plus SI M13 05 06 Fuel Systems January 2012 Technical Service This Service Information bulletin supersedes SI M13 05 06 dated June 2011. [NEW] designates changes to this revision SUBJECT [NEW] MINI Fuel System Cleaner Plus MODEL All SITUATION Recent field experiences have shown a significant increase in various drivability complaints due to excessive carbon deposits in engines combustion chambers on the intake valves and fuel injectors. The overall increase in carbon deposit accumulation is generally attributed to poor gasoline quality; namely, a low level of cleaning additives and 2002-2006 Mini Cooper (R50) L4-1.6L (W10) Page 16 fuel contamination. TECHNICAL BACKGROUND Combustion chamber deposit formation is a by-product of the gasoline burning process. Fuel injector and intake valve deposits may become less troublesome with the recently introduced Top Tier Detergent Gasoline deposit control standards, which are exceeding the detergent requir...