Leinfelden-Echterdingen/Fulda - At this year's RETTmobil from May 14th to 16th 2025, Mercedes-Benz Special Trucks will be presenting a selection of all-terrain vehicles that are predestined for use in disaster and rescue operations. A Unimog tank fire truck, and a Mercedes-Benz Atego HLF 10 designed as a multifunctional fire-fighting vehicle for fire-fighting and technical assistance will be on display at the outdoor stand F16. Visitors can experience another Mercedes-Benz Unimog with crew cab live in action on the off-road course.

Unimog U 5023 as a 3000 tank fire truck

Thanks to its high ground clearance of over half a meter, large approaching and ramp angles and a wading capacity of up to 1.2 meters, the Unimog U 5023 is ideally suited as a basic vehicle for flood and disaster operations as well as for demanding vegetation firefighting. The torsion-resistant chassis with tubular axles, which enables diagonal axle articulation of up to 30 degrees, as well as the high stability of the superstructure with a permissible total weight of 14.5 tons, ensure that the crew, material and heavy equipment can reach even remote locations safely and quickly if necessary. The integrated tire pressure regulation system enables the tire pressure to be adjusted quickly, even while driving, and ensures maximum traction on changing surfaces. For reliable use by fire departments, the Unimog also comes with a heat protection package for all operationally relevant lines ex works.

The tank fire truck shown here is based on the Unimog U 5023 and is equipped with a Schlingmann superstructure. The superstructure frame is welded from special stainless-steel profiles to ensure stability and prevent corrosion. The attachment of the superstructure to the chassis with a double three-point mounting allows high torsion resistance in difficult terrain.

The up to 4,000 liters of extinguishing water in the tank are discharged using the Schlingmann S2000 type FPN 10-2000 centrifugal fire pump (in accordance with DIN EN 1028), which is operated intuitively using glove-compatible buttons. It is also possible to use the pump & roll method. The roof water cannon with C-jet pipe can be operated through the pivoting roof hatch.

The four side equipment compartments provide space for extensive firefighting equipment. The pump system and the pressure proportioning system are housed in the rear equipment compartment. Roof boxes are also mounted on the superstructure roof. LED light strips in and on the superstructure ensure effective illumination of the area around the vehicle and the equipment compartments.

Atego as a multifunctional fire-fighting vehicle

The multifunctional fire-fighting vehicle (Hilfeleistungslöschgruppenfahrzeug, HLF 10) based on the Mercedes-Benz Atego is a versatile emergency vehicle for municipal fire departments that is equipped for both firefighting and technical assistance. It complies with the DIN 14502 and DIN 14530-26 standards and was built with a superstructure from Rosenbauer. It is a multifunctional emergency vehicle for municipal fire departments, designed for firefighting and technical assistance.

With 220 kW (299 hp), all-wheel drive and off-road reduction, the off-road capable Mercedes-Benz Atego usually gets to its destination quickly, even off paved roads. The selectable longitudinal lock can be used to synchronize the front and rear axles, while the selectable locking differentials on both axles can prevent individual wheels from spinning if necessary.

The spacious crew cab offers space for a full crew of nine people (8+1, eight crew members and one driver). The AT (Advanced Technology) superstructure from Rosenbauer is designed for municipal deployment requirements. With the storage space concept and high payload reserves, this concept enables the transportation of extensive equipment for various operational situations. At the rear, the body is characterized by a short overhang of just under two meters. The ambient lighting enables safe operating conditions even in the dark.

The superstructure is equipped with an FPN 10-3000 centrifugal fire pump, an extinguishing water supply and foam compound for firefighting. The operational functions are operated via the Rosenbauer Logic Control System.

Unimog in action: live demonstration on the off-road course

With 231 hp, selectable all-wheel drive and portal axles, a Unimog with a crew cab is ready to give visitors a ride on the outdoor course. The robust powerhouse combines high ground clearance and a low center of gravity in its design, which in combination ensures large approaching, ramp and tipping angles. Off-road, the Unimog generally makes progress even in difficult conditions thanks to off-road reduction and differential locks, while on asphalt it reaches top speeds of up to 89 km/h - making it suitable for highways. The tire pressure regulation system supports the adjustment of the tire contact area depending on the ground the vehicle is on.