A STRAN Citaro (second generation) in June 2014
The interior of a right-hand drive Citaro G for Japanese market
|Body and chassis|
|Doors||1, 2, 3 or 4|
|Floor type||Low floor|
|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)|
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.
- 1 History
- 2 Models
- 3 Production
- 4 Operators
- 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 as of 2018: The standard 12m Citaro, the shorter 10m Citaro K and the articulated 18m Citaro G. Hybrid versions of all three lengths are also available.
The standard urban model is available in a number of versions:
- O530: solo bus, length 12 m, 2 axles, horizontal or vertical engine, 2 or 3 doors, even with front door only (in countries with left-hand traffic)
- O530 CNG: gas drive, length 12m, 2 axles, 2 doors
- O530 FuelCell Hybrid, length 12m, 2 axles, 3 doors
- O530G: 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)
- O530G BlueTec Hybrid, length 18m, 3 axles, 3 or 4 doors
- O530G CNG: articulated bus with gas drive, length 18m, 3 axles, 3 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, lying engine underfloor in the rear, 2 (also 3) doors
- O530 L: solo bus (long), length 15m, 3 axles, 2 or 3 doors
- O530 LE: Low Entry, length 12m, 2 axles, 2 or 3 doors
A series of suburban/interurban versions is also produced, with all seats fitted on platforms:
- O530 GÜ: articulated bus, length 18m, 3 axles, 3 or 4 doors
- O530 LE MÜ: low-entry (medium length), length 13m, 2 axles, 2 or 3 doors, even with front door only (in countries with left-hand traffic)
- O530 LE Ü: Low-Entry, length 12m, 2 axles, 2 or 3 doors
- O530 LÜ: solo bus (long), length 15m, 3 axles, 2 or 3 doors
- O530 MÜ: Solo bus (medium length), length 13m, 2 axles, 2 doors
- O530 Ü: solo bus, length 12m, 2 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 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.  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.
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 (eg batteries) amounted to approximately 700,000 euros.
Mercedes-Benz is currently testing prototypes of the Citaro with all-electric drive. The bus will feature a modular battery pack design and use the same electric wheel hub motors as the Citaro G BlueTec Hybrid. It is scheduled for presentation at the IAA Commercial Vehicles show in Hanover in September 2018.
Overhead wire version
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 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.
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.
Citaros remain in use on several routes throughout London, including the 108 and 358, operated by Go-Ahead London, the 203, operated by London United, and the 227, operated by Stagecoach Selkent.
Rest of the UK
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 Uni-Link, Southern Vectis and Wilts and Dorset including the 'Pulse Line' (Salisbury) and 'More' (Bournemouth and Poole) branded services.
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 Emirates
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.
SBS Transit and SMRT Buses have purchased 351 Euro V Citaro single-decker buses in 2010, then jumped to 474 in 2012 and a further 330 in 2014. By 2017, Singapore would have more than 1,400 buses in operation, under SBS Transit, SMRT Buses, Tower Transit Singapore and Go-Ahead Singapore.
- "40,000 Mercedes-Benz Citaro models and 20,000 Mercedes-Benz minibuses". Daimler. 16 April 2014. Retrieved 21 August 2015.
- "Die Entwicklung steckt im Detail" [The development is in the details]. Der Rote Renner (in German). 20 May 2011. Retrieved 21 August 2015.
- "Daimler Buses at Busworld 2013". Daimler. 4 September 2013. Retrieved 21 August 2015.
- YouTube: Mercedes-Benz Citaro trolley in Szeged. Retrieved on 31 October 2007.
- "Mercedes-Benz Citaro G Bluetec Hybrid Bus Given 2008 DEKRA Environmental Award". Green Car Congress. 2008-01-31. Retrieved 2009-02-23.
- Michael Graham Richard (2008-01-31). "Citaro Hybrid Bus Wins 2008 DEKRA Environmental Award". Treehugger. Retrieved 2009-02-23.
- "The 2008 DEKRA environmental award - The Citaro G Blue Tec Hybrid bus". Mercedes-Benz - Omnibus News. 2008. Retrieved 2009-02-23.
- "Bundesverkehrsminister übergibt Hybridbusse an Leipzig" [Federal Traffic Minister gives hybridbus to Leipzig].. Auf Leipzig Info, 27 May 2011. Citaro hybrid buses also drive at the Mainz transport company and other German transport companies.
- "Electric mobility: Emission-free through the city: the countdown to the Mercedes-Benz Citaro with all-electric drive has begun | marsMediaSite". marsMediaSite. Retrieved 2017-11-10.
- "Mercedes-Benz Citaro für Hamburger Hochbahn: Seit über 15 Jahren fährt der Citaro in Hamburg" (in German). Retrieved 14 April 2018.
- Budapest orders biggest fleet to date of new Mercedes-Benz Citaro urban bus Busworld 10 December 2012
- First Mercedes-Benz Citaro buses delivered to Budapest Budapest Business Journal 2 May 2013
- "Járműpark" (in Hungarian). VT-Arriva. Retrieved 25 April 2017.
- Mercedes-Benz receives two major orders Mercedes-Benz
- Daimler Buses delivers 1,000th Mercedes-Benz Citaro to Romania Daimler 9 July 2009
- Mercedes-Benz O530 Bus Lists on the Web
- Mercedes-Benz O530G Bus Lists on the Web
- New bendy bus blaze scare London Evening Standard 2 October 2007
- Bendy bus makes final journey for Transport for London BBC News 10 December 2011
- Deakin, Tim. "Quality Line goes for Citaro K for TfL tender". Retrieved 7 December 2018.
- 100 Mercedes-Benz Citaro buses Abu Dhabi Archived 2016-04-15 at the Wayback Machine Mercdes-Benz
- "Best-selling Citaro Now Also Used by Keisei Bus in Japan". Daimler Global Media Site. Retrieved 28 April 2018.
- Major order from Singapore Daimler 21 April 2011
- 300 Mercedes-Benz Citaro City Buses to Singapore Busworld 7 May 2011
- Singapore: Mercedes wins follow on Citaro order Automotive World 19 July 2012
- SBS to complete fleet renewal by 2017 Archived 2016-04-14 at the Wayback Machine Asia One Transport 2 July 2014
- 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/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.