Euro Vi Emissions Standard - Mercedes-Benz OM 471 Introduction Into Service Manual

GF14.40>W>0002H
ENGINE 471.9 in MODEL 963 with CODE (M5Z) Engine version Euro VI
General information
The EATS for fulfilling the Euro VI emissions standard is based on
new engine technology in combination with a series of measures
aimed at reducing exhaust emissions.

Euro VI emissions standard

Emissions standards are statutory directives used to classify
vehicles in specific pollutant classes. These pollutant classes are
assigned specific emission code numbers,
that are also used to calculate the automobile tax and the
categorization into pollutant classes for environmental zones.
The Euro VI emissions standard for commercial vehicles defines
strict limits for the emission of carbon monoxide (CO), nitrogen
oxides (NOx), hydrocarbons (HC) and particles (PM).
As the vehicle manufacturer Mercedes>Benz must guarantee
compliance with these limits for a determined period of time and
mileage. For this reason, the exhaust aftertreatment system
(EATS) is a part of the engine/vehicle homologation process that
requires certification.
Brief information on EATS for Euro VI
New diesel engine generation
The new engine generation is equipped with a common rail diesel
injection system, EGR and boost pressure control. The engines are
configured for maximum efficiency and low particulate emissions.
Exhaust aftertreatment through:
f Selective catalytic reduction (SCR) with ammonia blocking
CAT
f Diesel oxidation catalytic converter (DOC)
f Diesel particulate filter (DPF)
i Introduction of engine OM 471 and exhaust aftertreatment > 09/2011 >
Exhaust aftertreatment, function
– This printout will not be recorded by the update service. Status: 09 / 2011 –
Functions
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