since i got pretty much nothing to do, i shall say some opinions
and thoughts of the bus
The Mercedes Benz OC500LE was developed by Mercdes Benz as a
successor to the O405 model range. i guess the year was 2003
or 4. then the bus probaly came in EURO II or III formats.
Actually, the OC 500 LE was developed to be sold in conjunction
with the Citaro O 530 integral packages. This was to allow
operators to select from a third-party bodybuilder if
required. It was first launched in Australia in 2003 as a
Euro 3-complaint diesel-fuelled bus chassis, with a Euro 4 CNG
option (optional Euro 5/EEV). I do believe that having
seperate and unrelated integral and non-integral products is bad
business practise though.
TP1854
reg: CNg1854 (in Singapore)
Merc OC500LE OH1824LE (note the abuse of a brazillain merc chassis
code is always welcomed to reflect the HP of the bus)
18 tonne - 254HP max output
Bodywork - volgren Cr228L
Tanny: ZF6HP592C Eccolite II
Fuel - CNG!!
A couple of corrections:
The correct designation for the CNG chassis is: OC 500 LE
1825hG
Engine: M 447 hLAG (Euro 4/EEV)
Maximum power output is: 185kW (252 PS) @ 2000rpm
Transmission: ZF 6HP 502C (Ecomat 2)
The OC 500 LE chassis is actually very different from the
chassis used for the Citaro (although both chassis' share the same
engine options). For example, the Citaro O 530 chassis has
independant rear suspension whereas the OC 500 LE chassis does
not. the OC 500 LE has Mercedes-Benz axles whereas the Citaro
has ZF axles. Also, the dash on the Citaro is completely
different from the dash on the OC 500 LE.
i enjoyed how the Zf6HP592C gearbox sounded like but din really
digg how the way the gearbox lock to slow down the bus. it jerked
the bus and the engine reving was uneasy. much like B9TL.
nevertheless it was a thrill to ride the bus. the engine sounded a
scania mixed with the )405 of the day.
Over the last few years, DaimlerChrysler Asia-Pacific in
conjunction with ZF AG have been optimising the gearshift points on
the Perth OC 500 LEs, so now they perform very differently compared
to how they performed back in 2003/4.
in 2007 or 2008, Mercdes benz revaped the Citaro range. it was at
this time i guess the OC500LE was revamped. th revamp took the bus
into the EURO V age. one may call this the OC500LE mark 2 if they
will. the engine specs were changed.
Again, the New Citaro was developed independantly from the OC
500 LE chassis. The New Citaro mainly featured an exterior
facelift, as well as Euro 4-compliant diesel engines (again with a
CNG option). The OC 500 LE chassis has remained the same
except for the added options of Euro 4/Euro 5/EEV diesel
engines.
With all that emmisions reduction and catalytic conversion stuffs,
the bus met EURO V. and some say EEV. the ultimate in emission
standards today is EEV.
The difference between Euro 5 and EEV is only slight.
Carbon monoxide (CO) emissions must be lower than 1.5 g/kWh on the
European Transient Cycle (ETC) in order to meet Euro 5 and lower
than 1.0 g/kWh to meet EEV. Hydrocarbon emissions must be
lower than 0.66 g/kWh to meet Euro 5 and 0.25 g/kWh to meet
EEV.
Dave who is from perth told me that the bus tranny shd be the
Zf6HP592C 9 a tranny for euro 2 and 3 buses) . i read soemwhere
else that the newer EUOR IV and V rnage of Zf tranny cd not be
coupled with the bus.
