Exhaust Emission Legislation - BMW M57 Service Training

DI Diesel Engines M57/M67 - Common Rail

Exhaust emission legislation

Pollutant limits have been further reduced in exhaust emission
guidelines. These limits for EU-3 will come into force as from
01.01.2000 for new type approvals.
Pollutant
CO
(NO
x
HC)
PM
PM: Particle mass
*) Different limits applied in part to direct injection diesel engines
Tab. 1: Exhaust emission limits for diesel engines
The DI engines fulfil the more stringent requirements specified in
the exhaust emission guidelines by means of the following
measures:
• Internal engine measures
• Controlled exhaust gas recirculation (EGR)
• Catalytic converter
• Common rail (adaptation of injection characteristics)
© BMW AG, Service Training
EU-2
Since 1996
1.00
+ 0.70
(0.90)*
0.08
(0.10)*
φ ι
(refer to Sec. 8)
Course contents/Background material
EU-3 EU-3 D
As from Since
approx. 2000 01.07.97
0.64 0.60
0.56 0.56
0.05 0.05
φ ι
g/km
g/km
g/km
(refer to Sec. 8)
Sec. 1 P.9