Exhaust system
50
Drive
b
Introduction of the New E-Class Coupé, Model Series 207
BlueTEC with AdBlue
®
The exhaust system of a diesel engine with AdBlue
®
consists of:
• Oxidation catalytic converter
• Diesel particulate filter
• SCR catalytic converter
• AdBlue
®
metering valve
• NO
x
sensors upstream and downstream of SCR
catalytic converter
• One rear muffler in each pipe
The NO
x
sensors upstream and downstream of the
SCR catalytic converter measure the NO
x
concen-
tration in the exhaust gas and regulate the dosage
of the AdBlue
®
reducing agent.
i
Note
For an overview of the exhaust aftertreatment
systems and the relevant limits in the emission
regulations the following Technology Guide is
available:
Exhaust aftertreatment for current passenger car
model series
Order No. 6516 1337 02
– This printout will not be recorded by the update service. Status: 01 / 2009 –