The BMW M56 is a 2.5-liter 184-PS (135 kW; 181 bhp) straight-six engine . It is a re-engineered version of the BMW M54B25 engine, manufactured in order to meet SULV regulations in US states until 2006. The M56 was replaced by the BMW N54 , which was BMW's first mass-produced turbocharged petrol engine.
3-573: The updated 2.5-liter engine, designated M56B25, was produced between 2002 and 2006. It was the first BMW Super Ultra Low Emission Vehicles (SULEV). The M56B25 power output and vehicle performance were the same as the comparable model equipped with the M54B25 engine (US only). M56 SULEV models listed above were sold in California, New York, and Massachusetts as 2003 models and in Vermont starting in
6-657: The 2004 model year. In addition, these vehicles were certified as partial zero-emissions vehicles (PZEV): The vehicles meet the SULEV tailpipe emission standard, which is approximately 1/5 of the ULEV standard. The vehicles conform to the Zero Evaporative Emissions requirements. From 2003 to 2006—325iA (E46) sedan, coupe and sport wagon with automatic or a manual transmission. Sales of this model started in 2003. The E46 SULEV has only been sold in 4 states in
9-598: The US: California, New York, Massachusetts, and later in 2004 in Vermont. In addition, SULEV models also incorporate a "Direct Ozone Reduction System". The external heat exchange surfaces of the radiator are coated with a catalyst that reduces the ozone in the ambient air drawn through the radiator. Super ultra-low emission vehicle Too Many Requests If you report this error to the Wikimedia System Administrators, please include
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