The OM457hLA is a turbocharged and intercooled 11 967cc, 4
valves per cylinder diesel engine with 2 power options to choose
from for the MB buses, altho initially there are 3 options but due
to the new Euro V implementation one of the option was taken out.
The specs are:
Before the Euro V implementation
- 252bhp
-299bhp
-354bhp
After the euro V implementation the 252bhp unit was
withdrawn.
The OM447hLAG is a turbocharged and intercooled 11 967cc, 2
valves per cylinder CNG fuelled engine. I not sure about its spec
as i didnt study much abt it.
The M 447 hLAG comes in either 185kW (252hp) or 240kW
(326hp). It is based on the highest-spec O 405 engine which
was the OM 447 hLA. This engine actually uses the same engine
management system as the OM 457 hLA and is therefore compatible
with the 24V CAN system and Mercedes-Benz Star Diagnose software as
used on standard issue current-model diesel buses.
Regards,
Dave