Setra Specials
May 20, 2009
The ComfortClass 400: new dimensions in economy and comfort
  • More space thanks to new lengths
  • More cockpit space for even more comfort
  • Engines of the GT-HD models
  • More free space when loading and unloading
  • Easily accessible electronics
A new design, new vehicle lengths, a completely newly developed cockpit and numerous new technical features for the exterior and interior make the ComfortClass 400 presented in 2003 a product segment in which the S 415 GT, S 415 GT-HD, S 416 GT-HD, S 417 GT-HD and S 419 GT-HD retain their distinctiveness and represent a new dimension with an outstanding combination of economy and travelling comfort. In spring 2005 the product range was extended with the right-hand drive S 415 GT-HD and S 416 GT-HD variants.
More space thanks to new lengths
When the regulation that buses and coaches must not have an overall length exceeding twelve metres was rescinded, Setra also made full use of this during the development of the ComfortClass 400. The S 415 GT and S 415 GT-HD measure 12 200 mm, the S 416 GT-HD 13 020 mm and the S 417 GT-HD 14 050 mm in length. The S 419 GT-HD is 14 960 mm long. This completely new length concept for combined touring/occasional coach operations creates noticeably more interior space and impressively ensures even more economy and comfort. The decisive factor for the extended front end and width increase to 2550 mm in these models is the annular frame technology used to construct the bodyshell, where continuous transverse, tubular members are connected by longitudinal members. This tubular frame technology gives the vehicle outstanding torsional rigidity. As in the touring coaches of the TopClass 400 series, the bodyshell skeleton is corrosion-protected by cathodic dip priming. These models are 60 mm longer at the front end than their predecessors, and the cockpit depth has also been increased by another 140 mm. Extending the front end has also widened the front entrance by 70 mm. The new length concept improves passenger access and egress in the front entry area. The designers were also able to use another 70 mm for more generous seat spacing between the right-hand rows in front of the rear entrance. Despite the new lengths the angle of approach was increased to 7.65°, which is particularly advantageous when driving on narrow mountain roads or manoeuvring into bus bays.
More cockpit space for even more comfort
The new, distinctively designed cockpit is another feature characterising the ComfortClass 400. The controls are arranged strictly in accordance with ergonomic principles. With features akin to a touring coach, the cockpit has a joystick gearshift, integrated navigation monitors, additional bottle-holders and stowage facilities for a briefcase or road maps. The adjustable steering column adopted from the TopClass 400 is pneumatically locked in place. For regular inter-urban service bus operations, a cash register can be installed in the cockpit of the ComfortClass 400 without difficulty.
Engines of the GT-HD models
The S 415 GT-HD, S 416 GT-HD and S 417 GT-HD models in the ComfortClass 400 are powered by an upright OM 457 LA six-cylinder in-line diesel engine with a turbocharger, intercooler and 4-stroke direct diesel injection. The Euro 4 engine for the S 415 GT-HD is available with an output of 315 kW (428 hp) and a maximum torque of 2100 Nm. The S 416 GT-HD and S 417 GT-HD are available with an output of 315 kW (428 hp) as standard, with a maximum torque of 2100 Nm.
The S 415 GT-HD, S 416 GT-HD and S 417 GT-HD are equipped with the Mercedes-Benz GO 210 six-speed manual transmission and a joystick gearshift. On request the GT-HD models are also available with the ZF-AS Tronic automated 12-speed manual transmission. The S 415 GT is equipped with the horizontally installed OM 457 hLA six-cylinder in-line engine based on 220 kW (299 hp) and the GO 190 transmission. On request this model is available with an output of 260 kW (354 hp) or 300 kW (408 hp) and the GO 190 transmission.
All models feature disc brakes, a Voith VR 115 retarder (ZF Intarder with ZF-AS Tronic), the Electronic Braking System EBS, ABS, acceleration skid control (ASR), Brake Assist (BA) and the Electronic Stability Program ESP, which has been standard equipment for all models in the Setra TopClass 400 and ComfortClass 400 since 1 October 2003.
More free space when loading and unloading
Even when space is very limited, the Setra ComfortClass 400 models allow the driver and passengers plenty of room when loading and unloading luggage. The Setra S 415 GT-HD and Setra S 416 GT-HD feature two enlarged, swing-out luggage compartment flaps on the left-hand side. Moreover, there is now no additional partition in the luggage compartment of the ComfortClass 400 models. Together with the reduced space requirement of the luggage compartment flaps, this ensures more convenient access to the luggage space.
Easily accessible electronics
The entire electronics are a network of conventionally switched systems and the flexibly programmable control system FPS, whose modules are in turn networked via a CAN databus. FPS consists of several "intelligent" components in decentralised onboard locations wherever something needs to be controlled or regulated. The advantage of these networked electronics is fewer cables and relays. The resulting reduction in complexity increases the operating safety and reliability of the vehicle.
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