|Mercedes-Benz O530 Citaro|
Citaro LE in Groningen, Netherlands
|Body and chassis|
|Doors||2-, 3- or 4-door (Articulated buses)
1-, 2- or 3-door (Solo buses)
|Floor type||Low floor|
17990mm(Citaro G WMB variant)
18125mm(Citaro G NMB variant)
19675mm(CapaCity and UAE ambulance bus)
The Mercedes-Benz Citaro (or O530) is the current Mercedes-Benz/EvoBus mainstream single-decker bus intended for public transport, introduced in 1997 and replaced the Mercedes-Benz O405/O405N series. Manufactured in Mannheim (Germany), Ligny-en-Barrois (France) and Sámano (Spain), it features a low floor for easy access.
- 1 Models
- 2 London fires
- 3 Latin American Citaros
- 4 Singapore Citaros
- 5 Gallery
- 6 See also
- 7 References
- 8 External links
The standard urban model is available in a number of versions:
- standard 12m twin-axle
- 10.5m twin-axle (Citaro K)
- 15m tri-axle (Citaro L)
- 18m tri-axle articulated (Citaro G)
- 20m four-axle articulated (Citaro GL "CapaCity")
- 12m twin-axle "low entry" (Citaro LE)
A series of suburban/interurban versions is also produced, with all seats fitted on platforms:
- 12m twin-axle (Citaro Ü)
- 13m twin-axle (Citaro MÜ)
- 15m tri-axle (Citaro LÜ)
- 18m articulated (Citaro GÜ)
- 12m twin-axle "low entry" (Citaro LE Ü)
- 13m twin-axle "low entry" (Citaro LE MÜ)
Operators are able to choose between two different front stylings: the standard design features an angled destination display 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, Mercedes-Benz/EvoBus launched a new version of the Citaro to coincide with the introduction of Euro IV-, Euro V- and EEV-compliant engines. Apart from minor technical alternations, 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.
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 the 2000 World Exposition. 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 5 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.   
When Transport for London bought articulated Citaros in 2003 and 2004, four buses caught fire, although there were no casualties involved. In fact, one was burnt on its delivery journey, for unexplained reasons. Mercedes-Benz did, however, address the problem, though the buses were withdrawn for some time that saw the brief return of the just-retired 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".
All bendybuses in London have now been withdrawn, and some are now in service with Arriva Malta. However some rigid 12m examples still exist for London General's "Red Arrow" routes 507 and 521. There also some in use with other operators on suburban routes. The same articulated buses that have been shipped to Malta have been withdrawn following 3 similar fires in as many days.
Latin American Citaros
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.
It is rumored that several public transport enterprises have plans to acquire Citaros in Mexico.
It was given a demonstrator in 2010 registered as SMB136C and was deployed on Service 855 as the first debut and never redeployed services yet. The interior were uses red fabric seats and the doors at the exit was inswing doors and the only bus which uses inward door for wheelchair accessible.
Later, SMRT Buses had order another 50 buses in two batches, 10 of them are under Batch 1 and the remaining 40 are Batch 2. The interior will be coloured Blue, Purple, Red seats and they uses outswing doors, instead of red fabric seats and inswing doors, and they deployed on Service 75. It was registered between SMB139U to SMB188C
SBS Transit had ordered 300 Citaro buses in 2011, they were registered between April 2011 and August 2012, SBS6000L to SBS6168L, SBS6170D to SBS6176M, SBS6178H to SBS6235B, SBS6237X to SBS6240K, SBS6242E to SBS6244A, SBS6246U to SBS6249L, SBS6251D to SBS6254X, SBS6256R, SBS6270Z to SBS6272T, SBS6275K to SBS6276H, SBS6280U to SBS6281S and SBS6285G for normal buses, and SBS6300X to SBS6341C for buses under the BSEP scheme, SBS6000L was the first to be deployed on Service 28 and now out on the road since August 2012.
In July 2012, SBS Transit ordered another 450 Citaro buses, which yet been registered between January 2013 and March 2015, SBS6342A to SBS6545G for buses under the BSEP scheme, and SBS6600E to SBS6845R for normal buses. SBS subsequently increased the orders without revealing it, the last order is in June 2015.
In July 2014, SBS Transit had their latest order for another 250 citaro buses, they will be register from August 2015 onwards till 2017.
This is to replaced heavily on Volvo B10Ms. In Singapore, it was the largest number of Citaros in Southeast Asia consist of 1000 Buses.
A rear view of an early Citaro owned by First Greater Manchester, showing the slightly different engine grille on the first Citaros
- 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.
- London Evening Standard: New bendy bus blaze scare. 2 October 2007; retrieved on 2013-08-14.
- London bendybuses off road in Malta after third catches fire in 3 days. 28 August 2013
|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". New Yorker. Retrieved 2008-05-24.