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Mercedes-Benz Citaro: city bus, generations, engines and inspection
The Mercedes-Benz Citaro has been a staple of city transport since its introduction in 1997 and remains one of Europe's most popular urban buses. We delve into the generations, variants, engines, the electric eCitaro, and what to check when buying used.
Citaro in brief
The Mercedes-Benz Citaro is a low-floor city bus that has been a mainstay in European public transport for decades. It comes in standard (around 12 m), articulated (around 18 m), and shorter lengths, with diesel, gas, hybrid, and electric powertrains.
The model is praised for its robust build, wide range of spare parts, and ease of maintenance. In the used market, the Citaro is often sought after as a reliable city or suburban bus.
Generations and variants — what's the difference
The first generation debuted in 1997 and was produced until roughly 2011, when the refreshed Citaro C2 arrived with a modern design and Euro 5 and Euro 6 engines. Both generations can be found in the used market.
Variants: standard Citaro (12 m), Citaro G (articulated, around 18 m), Citaro K (shorter), Citaro LE (low-entry, suburban) and Citaro Ü (for longer suburban routes). There are also gas (NGT), hybrid, and electric (eCitaro) versions.
Seating capacity depends on length and layout: a 12 m bus typically has around ten seats, with spacious standing areas designed for high passenger flow.
Engines and transmissions
Mercedes-Benz Citaro powered by diesels: earlier versions had around 6 and 12-litre engines (OM 906 and OM 457), newer ones have around 8 and 11-litre engines (OM 936 and OM 470) that meet Euro 6 standards. NGT versions use a gas engine.
Transmissions are usually automatic (ZF or Voith). In the electric eCitaro version, there's no traditional gearbox, with electric motors handling the power delivery.
What to check when buying a used Citaro
First off — the service history and mileage records. City buses run daily, so ask for a full service book, check documents, and gather information on repairs. Inspect the air suspension, brakes, and tyres.
The engine and transmission should run smoothly, without vibrations or rattles. Check the AdBlue and SCR system, particulate filter, cooling system, and air conditioning. Test the automatic doors and ramp — these often fail due to constant use.
Inspect the interior: seats, grab handles, floor covering, and windows. Check the body for corrosion and repainted parts, and the electrical equipment for blown fuses. Match the numbers with the documents.
Versions
Names and equipment vary by market and year; we list the most common variants found in Europe.
Citaro (12 m)
1997–Standard city version.
- Low-floor design
- Usually three doors
- Diesel or gas engine
Citaro G
1997–Articulated version for higher passenger flow.
- Around 18 m in length
- More space
- Built for tough routes
Citaro LE / Ü
1997–City and long-distance versions
- Low entry design
- Often more comfortable seats
- Fewer standing spaces
eCitaro
From 2018Electric city routes version
- Batteries and electric motors
- Quiet and emission-free
- Charging at depots or end stations
Comparison of main Citaro versions
| Citaro 12 m | Citaro G | eCitaro | |
|---|---|---|---|
| Who it's for | City routes | Tough routes | Clean for city routes |
| Length | Around 12 m | Around 18 m | Around 12 m or 18 m |
| Engine | Diesel or gas | Diesel or gas | Electric |
| Price in the used market (relatively) | Mid-range | High-end | High-end |
For most buyers, the standard 12 m Citaro will do just fine. The G model is needed for heavy-duty routes, while the eCitaro is worth considering only with a proven battery.
Pros
- Wide range of spare parts and service options
- Robust, reliable build
- Plenty of versions — from diesel to electric
- Low-floor design
Cons
- City driving often wears out brakes and doors
- AdBlue and SCR systems can be expensive to run
- Many used buses have high mileage
Frequently asked questions
How does the Citaro C2 differ from the previous generation?
The C2 is the newer, 2011 model with a modern design, more economical engines, and Euro 5 or Euro 6 standards. The previous generation is simpler and cheaper, but less economical.
Is it worth buying a Citaro NGT?
If you need lower emissions and have access to gas refuelling, then yes. However, the gas system requires additional maintenance and checks.
Is it worth buying a used eCitaro?
If the battery condition has been checked and there is a service history from the manufacturer, then yes. The battery is the key factor in its value, so ask for a diagnostic report.
Updated 2026-10-21 · Trim levels and equipment vary by market and model year — check the equipment of the specific car. · Translated automatically
