Mercedes-Benz Citaro

Mercedes-Benz Citaro

Qbuzz Citaro in Groningen in March 2014
Overview
Manufacturer Mercedes-Benz
Production 1997–present
Body and chassis
Class Complete bus
Doors 1, 2, 3, 4 or 5
Floor type Low floor
Low entry
Powertrain
Engine Mercedes-Benz OM457LA
OM457hLA
OM906hLA
OM926LA
M447hLAG
OM936
OM936h
OM470
Transmission automatic, depends on the generation
Dimensions
Length 11,950 millimetres (470 in)(Citaro)
14,500 millimetres (570 in)(Citaro L)
17,990 millimetres (708 in)(Citaro G WMB variant)
18,125 millimetres (713.6 in)(Citaro G NMB variant)
19,675 millimetres (774.6 in)(CapaCity and UAE ambulance bus)
20,995 millimetres (826.6 in)(Capacity L)
Width 2,550 millimetres (100 in)
Height min.3,170 millimetres (125 in)
Curb weight min.10t
Chronology
Predecessor Mercedes-Benz O405
Mercedes-Benz O405N

The Mercedes-Benz Citaro (or O530(G)) is a single-decker bus / articulated bus manufactured by Mercedes-Benz/EvoBus. It was introduced in 1997 and replaced the Mercedes-Benz O405/O405N series. Manufactured in Mannheim (Germany), Ligny-en-Barrois (France) and Sámano (Spain), it is available as a rigid bus with two or three axles and as an articulated bus with three or four axles. Over 40,000 have been manufactured.[1]

Models

SchnellBus Citaro O530G in Münster in January 2008
Arriva Shires & Essex Citaro O530 in Aylesbury in July 2009
BKK second generation Citaro O530G in Budapest in June 2013
Citaro L (three-axle) in Prague

Urban model

The standard urban model is available in a number of versions:

Suburban/interurban model

A series of suburban/interurban versions is also produced, with all seats fitted on platforms:

Specifications

Operators are able to choose between two different front stylings: the standard design features an angled destination display, like a roof dome, and is primarily marketed for urban buses, while a version with a one-piece windscreen covering the destination display also is available and is primarily intended for interurban use. However, all models are available with either version.

Other customizations include the number and type of doors as well as the internal layout. Two types of seats are offered as part of the standard range, again with a basic model for urban use and an enhanced version for longer-distance routes, although both also are available on all models.

Aside from the usual diesel engines, the Citaro is also available with a powerful Euro IV natural gas engine (model M 447 hLAG) rated at 185 kW (252 PS) or 240 kW (326 PS) - the latter rating used mainly for interurban and articulated buses or standard-length city buses operating in areas with a hilly topography. These engines are also optionally available with Enhanced Environmentally friendly Vehicle (EEV) certification, meaning that their emission levels are lower than even the most stringent European Union emissions standards.

In 2005, EvoBus launched an updated version of the Citaro to coincide with the introduction of Euro IV-(and later Euro V- and EEV-)compliant engines. Apart from minor technical alterations, mainly to accommodate the new generation of engines, the external design received a facelift to give the buses a less angular look, with internal panelling altered accordingly. Production of the old model ceased by autumn 2006. The Citaro LE and Citaro LE Ü models, which were introduced at the same time, were never produced to the old design.

In May 2011, the second generation Citaro, internally known as the C2, was launched.[3] From 2012 the C2 could also be equipped with Euro VI engines. The C2 versions of the Citaro LE models were the last to be presented, at Busworld Kortrijk in October 2013.[4]

Non-standard bodies

As a one-off, German operators üstra of Hanover and LVB of Leipzig took delivery of a batch of Citaros bodied to a special design by James Irvine for Expo 2000. Leipzig's vehicles were lent to Hanover for the duration of the exhibition, but subsequently returned to normal service in their home city. All other Citaros bodied by Mercedes-Benz were to standard designs, however a number of chassis were bodied by independent manufacturers, most notably Hess of Switzerland. However, the Citaro has more recently only been sold as a complete product.

In 2007 the workshops of the Szeged (Hungary) bus operator SZKT converted a regular Citaro to a trolleybus. As of April 2010, five such buses are already serving as a trolley and more examples are in preparation in the near future.[5]

In 2009, the Centre of Ambulance Services in Dubai took delivery of three Citaros, which had been modified to become the world's largest ambulances.

In 2010, the French city Rennes ordered a longer version of the Citaro, the Citaro M, which is 13 meters long with an urban arrangement. 15 vehicles were built over the chassis of the Setra S416NF.

Hydrogen fuel cell version

Even though the usual Citaro models are powered by diesel or natural gas, there is also a hydrogen fuel cell-powered version, designated Citaro BZ or O530BZ. About 35 of these buses have been in service in a variety of different world cities in order to test the feasibility of hydrogen fuel cells in different operating circumstances and different conditions, especially weather conditions.

Hybrid electric version

The Mercedes-Benz Citaro G BlueTec Hybrid is a series-hybrid articulated bus with a compact 450 kg, 4-cylinder, 4.8-litre, 160 kW, Euro 4 OM-924LA diesel engine providing power for a roof-mounted 19.4 kWh lithium-ion battery pack, and four 80 kW electric wheel hub motors located on the centre and rear axles. (Contrast a conventional bus diesel engine: 6-cylinder, 12-litre, 1,000 kg.) The battery pack is also charged by regenerative braking (recuperation). The manufacturer anticipates fuel consumption 20% lower than conventional diesel Citaros. [6][7][8]

Operators

Europe

United Kingdom

Arriva London Citaro O530G on route 73 at Oxford Circus in June 2006

Arriva, FirstGroup, Go-Ahead Group, Stagecoach Group and Yourbus have all operated Citaros. Articulated Citaros were operated by Transport for London operators East London, First London, London Central, London General, London United, Quality Line and Selkent.[9][10]

In 2003 and 2004, four buses caught fire, although there were no casualties involved. One was burnt on its delivery journey. Mercedes-Benz did address the problem, though the buses were withdrawn for some time that saw the brief return of the just-retired AEC Routemasters. Unfortunately, these buses were said to have marred the reputation of articulated buses in the United Kingdom, and some Londoners nicknamed them Chariots of Fire.[11]

The last articulated buses in London were withdrawn in December 2011.[12] Some rigid 12 metre examples remain in service with Go-Ahead London on routes 108 and 358. There also some in use with other operators on suburban routes including London United on route 203 and Stagecoach Selkent on route 227. Epsom Buses will use Citaro K buses when they take over route 413 from Go-Ahead London on December 4, 2016.

Hungary

In Hungary, VT-Arriva purchased 159 to operate services in Budapest for BKK.[13][14][15]

The Netherlands

Connexxion Citaro O530G in Amsterdam in July 2010

In 2009, Qbuzz ordered 350 while Connexxion ordered 75.[16]

Romania

Between 2005 and 2009 Regia Autonomă de Transport București purchased 1,000 Citaros.[17]

Middle East

By 2009, 180 Citaros had been delivered to the city of Al Ain.[18]

Latin America

In Latin America, Citaros are not present in large quantities in public transport systems. Only Mexico has 14 Spanish-built Citaros for the BRT Internal System of UNAM.

Asia

Singapore

SBS Transit Citaro in Singapore in August 2011

SBS Transit and SMRT Buses have purchased 351 Euro V Citaros in 2010, then jumped to 474 in 2012 and a further 250 in 2014.[19][20][21] By 2017, Singapore would have more than 1,400 units in operation, under SBS Transit, SMRT Buses, Tower Transit Singapore and Go-Ahead Singapore.[22][23]

Oceania

Australia

In Australia, between September 2004 and September 2007, Transperth operated three hydrogen powered Citaros.[24][25] In 2016, Brisbane Transport commenced operating a Citaro demonstrator.[26][27]

References

  1. ↑ "40,000 Mercedes-Benz Citaro models and 20,000 Mercedes-Benz minibuses". Daimler. 16 April 2014. Retrieved 21 August 2015.
  2. ↑ Bigger artic launched by Mercedes Bus & Coach Professional 10 December 2014
  3. ↑ "Die Entwicklung steckt im Detail" [The development is in the details]. Der Rote Renner (in German). 20 May 2011. Retrieved 21 August 2015.
  4. ↑ "Daimler Buses at Busworld 2013". Daimler. 4 September 2013. Retrieved 21 August 2015.
  5. ↑ YouTube: Mercedes-Benz Citaro trolley in Szeged. Retrieved on 31 October 2007.
  6. ↑ "Mercedes-Benz Citaro G Bluetec Hybrid Bus Given 2008 DEKRA Environmental Award". Green Car Congress. 2008-01-31. Retrieved 2009-02-23.
  7. ↑ Michael Graham Richard (2008-01-31). "Citaro Hybrid Bus Wins 2008 DEKRA Environmental Award". Treehugger. Retrieved 2009-02-23.
  8. ↑ "The 2008 DEKRA environmental award - The Citaro G Blue Tec Hybrid bus". Mercedes-Benz - Omnibus News. 2008. Retrieved 2009-02-23.
  9. ↑ Mercedes-Benz O530 Bus Lists on the Web
  10. ↑ Mercedes-Benz O530G Bus Lists on the Web
  11. ↑ New bendy bus blaze scare London Evening Standard 2 October 2007
  12. ↑ Bendy bus makes final journey for Transport for London BBC News 10 December 2011
  13. ↑ Budapest orders biggest fleet to date of new Mercedes-Benz Citaro urban bus Busworld 10 December 2012
  14. ↑ First Mercedes-Benz Citaro buses delivered to Budapest Budapest Business Journal 2 May 2013
  15. ↑ "Járműpark" (in Hungarian). VT-Arriva. Retrieved 25 April 2017.
  16. ↑ Mercedes-Benz receives two major orders Mercedes-Benz
  17. ↑ Daimler Buses delivers 1,000th Mercedes-Benz Citaro to Romania Daimler 9 July 2009
  18. ↑ 100 Mercedes-Benz Citaro buses Abu Dhabi Mercdes-Benz
  19. ↑ Major order from Singapore Daimler 21 April 2011
  20. ↑ 300 Mercedes-Benz Citaro City Buses to Singapore Busworld 7 May 2011
  21. ↑ Singapore: Mercedes wins follow on Citaro order Automotive World 19 July 2012
  22. ↑ SBS to complete fleet renewal by 2017 Asia One Transport 2 July 2014
  23. ↑ SBS Transit to Add 665 More Buses SBS Transit 2 July 2014
  24. ↑ Sustainable Transport Energy Project Global Hydrogen Bus Platform
  25. ↑ EcoBus Department of Transport
  26. ↑ Chassis: 2016 Supplier Outlook Australian Bus & Coach 8 February 2016
  27. ↑ Video Review: Mercedes-Benz Citaro Australasian Bus & Coach 10 March 2016

Hydrogen

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