Hermann Breitbach

A global emission strategy — Bluetec for diesel engines

The challenge to provide both efficient and powerful engines has recently become even more important worldwide. In order to address this challenge, Mercedes-Benz has developed the Bluetec system, which can meet both current emission standards and also very challenging future limits, while still retaining the characteristic benefits of the diesel engine.

Combustion process and exhaust gas aftertreatment in the Mercedes-Benz Bluetec concept

In recent years, Mercedes-Benz has frequently reached important emission control milestones in diesel engines: In 1985, the world’s first serial production particulate filter for passenger cars, in 2003 the first modern particulate filter with additive-free regeneration, and, in October 2006, the United States market launch of the E 320 Bluetec. This vehicle is the first serial production diesel passenger car to exceed the requirements of U.S. Tier II Bin 8 standards. The Bluetec concept is based on several building blocks: the base engine with significantly reduced engine out emissions, the oxidation catalyst and particulate filter, the nitrous oxide aftertreatment, and the associated system control.In recent years, Mercedes-Benz has frequently reached important emission control milestones in diesel engines: In 1985, the world’s first serial production particulate filter for passenger cars, in 2003 the first modern particulate filter with additive-free regeneration, and, in October 2006, the United States market launch of the E 320 Bluetec. This vehicle is the first serial production diesel passenger car to exceed the requirements of U.S. Tier II Bin 8 standards. The Bluetec concept is based on several building blocks: the base engine with significantly reduced engine out emissions, the oxidation catalyst and particulate filter, the nitrous oxide aftertreatment, and the associated system control.