The Mercedes-Benz Citaro is a single-decker, rigid or articulated bus manufactured by Mercedes-Benz/EvoBus. Introduced in 1997, the Citaro is available in a range of configurations, and is in widespread use throughout Europe and parts of Asia, with more than 40,000 produced.
A STRAN Citaro 2nd generation in June 2014
|Body and chassis|
|Doors||1, 2, 3 or 4|
|Floor type||Low floor or Low entry|
|Capacity||20 - 58 seats|
|Transmission||Voith Diwa.6, 4-speed automatic transmission|
|Width||2,550 mm (100.4 in)|
|Height||3,130 mm (123.2 in)|
|Curb weight||18,475–29,000 kg (40,730–63,934 lb)|
- 1 History
- 2 Models
- 2.1 Urban model (Current)
- 2.2 Suburban / interurban model (Current)
- 2.3 Discontinued models
- 2.4 Specifications
- 2.5 Non-standard bodies
- 2.6 Hydrogen fuel cell version
- 2.7 Hybrid electric version
- 2.8 Battery version / eCitaro
- 2.9 Overhead wire version
- 2.10 Conecto
- 3 Production
- 4 Operators
- 4.1 Europe
- 4.2 Middle East
- 4.3 Latin America
- 4.4 Asia
- 4.5 Oceania
- 5 References
- 6 External links
In 2005, 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.
In 2006 the Citaro received a much more substantial facelift, which can be seen from the outside by a revised front and rear design (analogous to the recently introduced low-entry buses). The hitherto characteristic feature of the first series, the "washboard trim" on the front of the vehicle, which was also available as a front advertising area and smooth surface without Mercedes star, accounted for a somewhat rounded front baffle. The lateral sweep of the front turn signals was reversed.
In May 2011, the second generation Citaro, referred to internally as the C2, was launched. From 2012, the C2 could also be equipped with Euro 6 engines. The C2 versions of the Citaro LE models were the last to be presented, at Busworld Kortrijk in October 2013.
There are three basic versions of the Citaro available in 2019: The standard 12m Citaro, the shorter 10m Citaro K and the articulated 18m Citaro G. Hybrid versions of all three lengths and one full electric version with standard and articulated versions are also available.
Urban model (Current)Edit
The standard urban model is available in a number of versions:
- O530: solo bus, length 12m, 2 axles, horizontal or vertical engine, 2 or 3 doors, even with front door only (in countries with left-hand traffic)
- O530 eCitaro: solo bus with full electric drive (battery), length 12m, 2 axles, 2 or 3 doors
- O530 Hybrid: solo bus with diesel-electric drive, length 12m, 2 axles, 2 or 3 doors
- O530 NGT: solo bus with natural gas drive, length 12m, 2 axles, 2 or 3 doors
- O530 NGT Hybrid: solo bus with natural gas-electric drive, length 12m, 2 axles, 2 or 3 doors
- O530 G: articulated bus, length 18m, 3 axles, horizontal or vertical engine, 3 or 4 doors, also with 2 doors only (in countries with left-hand traffic)
- O530 G Hybrid: articulated bus with diesel-electric drive, length 18m, 3 axles, 3 or 4 doors
- O530 G NGT: articulated bus with natural gas drive, length 18m, 3 axles, 3 or 4 doors
- O530 GL: articulated bus (long) (CapaCity), length 19.5m, 4 axles, 3 or 4 doors
- O530 GL II: articulated bus (long) (CapaCity L), length 21.0m, 4 axles, 4 or 5 doors (metro package)
- O530 K: midibus, length 10.5m, 2 axles, horizontal or vertical engine, 2 or 3 doors
- O530 K Hybrid: midibus with diesel-electric drive, length 10.5m, 2 axles, 2 or 3 doors
- O530 LE: low entry solo bus, length 12m, 2 axles, horizontal engine, 2 or 3 doors (the 3rd door is only available as single door)
- O530 LE Hybrid: low entry solo bus with diesel-electric drive, length 12m, 2 axles, 2 or 3 doors (the 3rd door is only available as single door)
Suburban / interurban model (Current)Edit
A series of suburban/interurban versions is also produced, with single front doors and all seats fitted on platforms:
- O530 GÜ: articulated bus, length 18m, 3 axles, 3 doors
- O530 LE Ü: low-entry solo bus, length 12m, 2 axles, 2 doors
- O530 LE MÜ: low-entry (medium length), length 13m, 2 axles, 2 or 3 doors (the 3rd door is only available as single door)
- O530 Ü: solo bus, length 12m, 2 axles, 2 doors
- O530 Hybrid Ü: solo bus with diesel-electric drive, length 12m, 2 axles, 2 doors
- O530 CNG: natural gas drive, length 12m, 2 axles, 2 or 3 doors (renamed as O530 NGT)
- O530 G CNG: articulated bus with natural gas drive, length 18m, 3 axles, 3 or 4 doors (renamed as O530 G NGT)
- O530 FuelCell Hybrid: hydrogen-fuel cell hybrid drive, length 12m, 2 axles, 3 doors
- O530 G BlueTec Hybrid: articulated bus with diesel-electric hybrid drive, length 18m, 3 axles, 3 or 4 doors
- O530 L: solo bus (long), length 15m, 3 axles, 2 or 3 doors
Suburban / interurbanEdit
- O530 MÜ: solo bus (medium length), length 13m, 2 axles, 2 doors
- O530 LÜ: solo bus (long), length 15m, 3 axles, 2 or 3 doors
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.
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.
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 versionEdit
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 versionEdit
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.  In 2010, selected bendy buses were delivered in hybrid version to Wuppertal, Stuttgart, Krefeld, Hamburg and Mülheim. Other buses were also delivered to Essen, Duisberg, Munich, Mainz, Hamburg and Rostock are also in the rigid versions. The Dresden and Leipzig also delivered their Citaro hybrid buses in 2011.
Battery version / eCitaroEdit
Since 2015, Aachen Transport runs a battery-powered Citaro articulated bus as a test in scheduled operation. The vehicle was converted in 2014 from a hybrid bus to a battery bus. They removed all diesel components and installed 1300 traction batteries with a total capacity of approximately 180 kWh. The axle loads remained unchanged. The vehicle has four wheel hub motors with 60 kW continuous power on the second and third axle and has a range of more than 50 kilometers. The conversion was carried out as part of the EU project Civitas (Cleaner and better transport in cities) and was funded by the Aachen Transport Association to 75 percent. The costs for the hardware (e.g. batteries) amounted to approximately 700,000 euros.
Mercedes-Benz tested prototypes of the Citaro with full electric drive. The bus features a modular battery pack design and use the same electric wheel hub motors as the Citaro G BlueTec Hybrid. It was scheduled for presentation at the IAA Commercial Vehicles show in Hanover in September 2018.
On 15 November 2018, the first series of production model of this full electric bus concept, which is named eCitaro now, was delivered to its first customer: Hochbahn AG, a public transport company in Hamburg, with a total of 20 at last. In year 2019, there are more customers started operating eCitaros, including Rhein-Neckar-Verkehr GmbH (RNV), Berliner Verkehrsbetriebe (BVG), Zugerland Verkehrsbetriebe (ZVB), and Bus Ostschweiz (BOS). This was also followed with orders from Verkehrsbetriebe Hamburg-Holstein (VHH) with 16 buses, ESWE Verkehrsgesellschaft mbH from Wiesbaden with 56, and ÜSTRA from Hannover with 48. Mercedes-Benz also received orders from foreign countries, which contains Luxembourg, Norway, and Sweden. In addition, the eCitaro has been crowned to City Bus of the Year 2019 in Spain on 11 February 2019.
Overhead wire versionEdit
Because EvoBus itself does not offer trolleybuses, the transport companies of the Hungarian city of Szeged independently built six second-hand Citaro solo cars into trolleybuses between 2006 and 2010. This is expected to save on spare parts inventory - this can be done together with the same diesel buses of the dispenser series - as well as lower acquisition costs compared to standard production trolleybuses. The modified type designation is O-530 Tr12, the six wagons bear the operating numbers T-860 to T-865.
In 2012, two Citaro trolleybuses also went into operation in Polish Gdynia. The cars with the numbers 3053 and 3054 originated from used acquired diesel buses from Berlin, which has been delivered in 2002.
In year 2007, the 2nd generation Conecto was presented and is both available as standard 12m and articulated 18m version. They are however only available with 3 doors (solo version) and 4 doors (articulated version). Unlike its predecessor as an independent model series, it is a technical simplified version of Citaro or Citaro G, with low floor configuration and vertical engines. It is recognizable with the changed exterior design in opposition to Citaro and is mainly sold to eastern Europe and the Middle East.
In September 2016, the 3rd generation Conecto was presented in Warsaw, Poland. Several improvements were done for the new Conecto, as well as driving safety, passenger comfort, handling and Euro 6 engines, while the operation costs still stay low. Examples for high standard of safety are Electronic Stability Program (ESP) on solo versions and Articulation Turnable Controller (ATC) on articulated versions. Conecto and Conecto G NGT powered by natural gas are also available for the first time. Like the 2nd generation, the 3rd generation Conecto is solely available with 3 doors (solo version) and 4 doors (articulated version).
The low-cost-variant Conecto is built in factories in Hosdere, Turkey.
In 2008 to 2013 Bratislava ordered 41 large buses of type Mercedes-Benz CapaCity to replace buses of types Ikarus 435 and Diesel buses Karosa B741. The first bus entered into service in December 2008 on route 96 with evidence number 1999. In 2010 ordered in total 25 buses and in 2012 ordered 15 buses. Bratislava also ordered 1 Citaro CNG with number 2020. Citaro CNG entered to service in November 2009 To February 2018 and today bus Citaro CNG is sold to private owner.
In 2002 Nitra ordered 1 Citaro only for route 28. Original transparents are being replaced in summer 2013 with R&G Mielec.
Connexxion had ordered a total of 255 buses through out 1998 and 2014. That 255 contains the order of the 75 buses in 2019. Besides that they placed another order of 33 Capacity L buses.
The RET, from Rotterdam, has made 2 orders in 2006 and 2008 for a total of 166 Citaro buses. In 2010 they made another small order of 2 hybrid Citaro articulated buses.
Syntus, in the eastern side of the Netherlands, placed two orders for 33 buses. 11 Citaro CNG single buses under the moniker "Gelderland" and 22 articulated CNG buses under the moniker "Veluwelijn"
In 2009, Qbuzz ordered 390 while Connexxion ordered 75. As of 2018 Connexxion under the R-Net moniker took delivery of several CapaCity L models In 2014 Qbuzz ordered another 138 buses for Utrecht under the moniker "U-OV."
In 2016, Empresa Municipal de Transportes de Madrid (EMT Madrid) ordered 82 natural gas versions of the Citaro, known as the Citaro NGT. The following year, it placed an order for a further 314 buses, and in 2018 it placed another order for a further 276 buses, for a total of 672 buses, all of which are due to enter service by 2020. Palma Have Citaros Too,In 2001 EMt Palma Or Empresa Municipal De Transports Urbans Orderes 80 CMercedes Citaros To "Evobus Iberca S.A."Sone Euro II 12 Meters Citaros And 12 18 Meters Citaros Voith Gearboxes(This Is Not The exact Amount,Some Of Them We're Sold,Tjis Is The Actual Citaros I Palma)They Were In The Years Th Most Modern Buses In Spain,More Than Madrid:D,In 2005 The Govern Of The Islands Gived The EMT Palma Some Mercedes-Benz Citaro Euro III 18 meters From Evobus Gmbh,In 2006 EMT Palma Buyed Some Nice And New Mercedes-Benz Citaro 12 Meters From Evobus Gmbh/Euro III Too)
In 2002, ATAC of Rome ordered 183 Citaro U interurban model with a blue livery and two doors. This was followed by 200 Citaros urban model in the normal ATAC grey livery with 3 doors in 2003, then followed by 101 Citaros, also in ATAC grey livery, in suburban model with two doors. They operate on many routes, including 63, 88, 443 and Ostia routes 05B, 06.
Outside of the capital, Citaros are very popular in Italy. They can be seen in many of the big cities, including Milan, Naples, Venice, Trieste, Cagliari, Trento and Bologna.
Right-hand drive versions of the articulated Citaro G were introduced in London on 2 June 2002, on routes 507 and 521. They were eventually used on 12 routes across London, were operated by were operated by various Transport for London operators including East London, First London, London Central, London General and Selkent.
In 2003 and 2004, four Citaro Gs 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 which the saw the brief return of the just-retired AEC Routemasters. Unfortunately, the fires are said to have marred the reputation of articulated buses in the United Kingdom, and some people nicknaming them Chariots of Fire.
The final Citaro G in London was withdrawn in December 2011.
Rest of the UKEdit
Solent Blue Line in Southampton received 10 Citaros in 2006. They were branded in the Bluestar livery and were mostly seen on the services 8 and 9 to Hythe and the waterside. Others could be seen in the colours of sister companies in the Go-Ahead group such as Oxford Bus Company, Go North East, Southern Vectis and Wilts and Dorset including the 'Pulse Line' (Salisbury) and 'More' (Bournemouth and Poole) branded services.
In 2013 Cardiff Bus received 20 Euro 5 citaros. Then again in 2015 they received 10 Euro 6 citaros then a further 10 in 2017, bringing the total in the fleet to 40.
The Saudi Public Transport Company (SAPTCO), in a joint venture with RATP Group, placed an order for 200 Citaros and 400 Citaro Gs on 16 May 2017. These Citaros will be specially adapted for use in the hot desert conditions of Saudi Arabia, with an uprated air conditioning system, circulating air blowers in the doors and double-glazed, darkened side windows. The first vehicles are due for delivery in 2018.
United Arab EmiratesEdit
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.
SMRT Buses trialed an Euro V demonstrator unit in 2010, which proved to be successful and an additional 10 buses were purchased with a follow up order of another 40. In 2011, SBS Transit made an initial purchase of 300 buses, before following up with another order of 450 (increased to 474) in 2012 and a further 250 (increased to 330) in 2014. By 2017, a grand total of 1,155 Citaro buses were in operation, with some allocated to Tower Transit Singapore and Go-Ahead Singapore under the Bus Contracting Model.
In Australia, between September 2004 and September 2007, Transperth trialled three hydrogen powered Citaros. One of the buses is preserved in Whiteman Park by the Bus Preservation Society of Western Australia with the other two scrapped at the end of the trial. In 2016, Brisbane Transport commenced operating a Citaro demonstrator but was later withdrawn due to high operating cost.
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- Mercedes-Benz receives two major orders Mercedes-Benz
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- Mercedes-Benz O530 Bus Lists on the Web
- Mercedes-Benz O530G Bus Lists on the Web
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- Mercedes-Benz Citaro for South-East Asia: SMRT to test the Citaro in Singapore for the local market. Daimler 20 April 2010
- Major order from Singapore: Daimler Buses delivers 300 Mercedes-Benz Citaro city buses to Southeast Asia Daimler 21 April 2011
- Singapore transit operator places major order for 450 Mercedes-Benz city buses Daimler 18 July 2012
- SBS Transit to Add 665 More Buses SBS Transit 2 July 2014
- Sustainable Transport Energy Project Archived 2016-02-27 at the Wayback Machine Global Hydrogen Bus Platform
- EcoBus Archived 2016-04-13 at the Wayback Machine Department of Transport
- Chassis: 2016 Supplier Outlook Australian Bus & Coach 8 February 2016
- Video Review: Mercedes-Benz Citaro Australasian Bus & Coach 10 March 2016
|Wikimedia Commons has media related to Mercedes-Benz Citaro.|
- Mercedes-Benz bus homepage
- Mercedes-Benz/EvoBus Citaro page
- Mercedes-Benz/EvoBus Citaro G page
- Paumgarten, Nick (2008-05-26). "Ich Bin Ein M4". The New Yorker. Retrieved 2008-05-24.