Unimog U 4023/U 5023.
Move the limits. Setting standards.
The highly off-road-capable Unimog.
Optimum working conditions.
Optimum conditions of operation.
Get in, feel good, get going: The cab brings together the result of decade-long vehicle design and construction. It offers a comfortable sitting position in the low-vibration area behind the front axle – a valuable support especially when off-roading. All the settings can be registered quickly in the large instrument cluster. This make a considerable contribution to safety and user-friendliness. This way, work and comfort go hand in hand in the Unimog. Because the faster and more intuitively the driver can operate the many different driving and working functions, the safer and more reliable off-road use will be.
Advantages at a glance.
- Robust steel cab-behind-engine
- Seating position to the rear of the front axle
- Short distance between implement and tractor
- Cab structural integrity in accordance with ECE-R-29/3
- 3-point mounting, vibration-damped
- Tiltable cab
- 2 cab rear wall windows
- 2- or 3-step anti-slip access, with grab handle
- Heated exterior mirrors on both sides, electrically adjustable
- Heat-insulating tinted glass all-round
- Top air intake
- and lots more…
The cab of this cab-behind-engine truck supports the driver most clearly when the job in hand leaves no room for lengthy deliberation: Ergonomically and intuitively arranged, all elements make operation more convenient. The seating position in the low-vibration area behind the front axle enables more comfortable off-road travel and offers a very good overview of the area of to be traversed. The area of travel is optimally illuminated by the daytime running lamps and the headlamps
Crewcab for up to 7 persons optionally available.
Whereas the single cab can accommodate two full-size single seats and a centre seat, the crewcab available ex-works can carry up to seven people to the place of work. An additional rear seat with four seats, otherwise two individual seats are possible. The rear seat also offers additional stowage space, e.g. for tools or material.
Off the beaten track with the team.
Seven comfortable places.
The crewcab transforms the Unimog into a people carrier.
Optimum working conditions, comfort and safety.
Make yourself at home, feel at home.
The interior offers a high level of comfort and makes work easier. The heating and air conditioning system creates a well-tempered working atmosphere in all weathers. The standard high roof and the adapted engine tunnel allow space for two full single seats and the optional centre seat. The modern workplace also includes a CD radio with Bluetooth hands-free feature. The centre stowage and the standard glove compartment look tidy and allow a clear overview and orderliness.
- The cab is clearly organised and creates a pleasant working atmosphere. The multifunction steering wheel lies perfectly in your hand and provides quick access to the hands-free system and the display of the instrument cluster.
- The instrument cluster shows all the important information such as oil level, air pressure or hydraulic system settings on its large and bright display.
- Functions such as gearshift, premium engine brake and Electronic Quick Reverse are integrated in the steering column stalks.
- Clearly-structured operating elements, all within easy reach. A real innovation for easy operation is the Tirecontrol plus central tyre inflation system. If features practical presets.
- The standard height- and tilt-adjustable steering column enables an optimum seating position for the driver.
Everything within easy reach.
Built to work.
Its robustness, reliability and versatility have made the “universal power tool”, as it was originally called, the work and transport vehicle of choice worldwide for decades when difficult operating conditions require a reliable helper. Despite its broad scope of practical skills, it has been possible to keep its dimensions compact – and it’s for this specific reason that the highly off-road-capable Unimog can make use of its effectiveness virtually wherever it is needed.
More than 70 years of development experience.
Takes almost every hurdle.
Knows virtually no limits.
The highly off-road-capable Unimog is the embodiment of more than 70 years of development experience: Portal axles, all-wheel drive, central tyre inflation system and differential locks on both axles and an extremely torsionally-capable vehicle frame enable the U 4023 and the U 5023 to advance in even the most arduous terrain. For instance thanks to Tirecontrol plus: The preset modes “road”, “sand” and “bad road” make the selection of the correct tyre pressure at the touch of a button and easy and automatic.
Takes almost every hurdle.
Unique frame concept.
Flexible and robust in operation.
The cranked frame with welded-in tubular cross members is the heart of the vehicle’s torsional capability.
Axle suspension with torque tube.
Torque tube technology and helicoidal springs enable extreme spring travel and a great axle articulation of up to 30 degrees.
Economical. Powerful. Environmentally friendly.
The economical engine.
Perfectly coordinated drive system technology.
In the Unimog, the fully synchronised electro-pneumatic transmission (EPS) with its eight forward and six reverse gears provides the tractive power. A special off-road group is also available with an additional eight forward and eight reverse gears each for low driving speeds. It is characterised by particularly smooth running, a long service life and great efficiency. And with the synchronised Electronic Quick Reverse group, quick changes in the direction of travel are possible, e.g. for rocking free on rough terrain.
More is more.
Shift gears at your pleasure.
High ground clearance.
Stay flexible – always.
Attachments and bodies.
Versatile offroad specialist.
Boulders, scree, snow, sand, unconsolidated tracks – the Unimog U 4023 and Unimog U 5023 will always find a way. Thanks to their uncompromising all-terrain capabilities they transport tools, implements, material and work teams far beyond the beaten track to their place of deployment.
Vehicle and tool rolled into one.
Advantages at a glance.
- Standardised front mounting plate for implements up to 1.5 t, (e.g. snow ploughs)
- Implement fittings at the front, e.g. for compressors or emergency power generators
- Winch support
- Platform and box bodies possible
- Floor assembly for special bodies prepared
More is more.
Areas of application.
More than just a vehicle.
The Unimog is vehicle and tool all rolled into one. Thanks to its uncompromising off-road capability, it transports equipment, material and crew off the beaten track to the job site.
Once there, it reliably delivers first-class work. The prerequisites for this are defined by the existing spaces for implement carriers, as well as interfaces and drives for fixed or interchangeable devices. The highly off-road capable Unimog has two different transmission power take-offs and one engine PTO. A vehicle hydraulic system to power different implements and continuous consumers is available as optional equipment. Standardised sockets provide electric power. The body mounting space can be used particularly flexibly: The possibilities range from platform bodies and box bodies to special solutions for specific requirements. All this together results in a strong and highly mobile workshop with which work assignments can be carried out safely and reliably.
Fire & rescue.
A very tough performer.
Forest fires in the Mediterranean, floods on the Danube and Elbe, violent hurricanes and autumn storms all over Europe, plus hail or earthquakes: The number of natural disasters is on the increase all around the world – and with them the major and special operations of fire brigades and disaster control organisations. This means that the emergency forces are facing ever greater challenges – and so are the emergency vehicles. No other vehicle offers a performance potential under the toughest conditions comparable to that of the Unimog: as a transport vehicle for a work team, material, tools and equipment. And on site as fire-fighting vehicle, clearing vehicle or recovery vehicle.
Robust. Safe. Suited to the job in hand.
Efficient power for the energy industry.
Professional implement carrier, powerful transport vehicle, mobile workshop: The Mercedes-Benz Unimog covers the whole scope of functionality that an effective fleet in the energy sector needs.
Whether it’s the repair and maintenance of supply networks, open-cast mining or the exploration of new energy sources: Thanks to its exceptional off-road capability and compact design, the Unimog can operate almost anywhere. With everything needed on site. The fully welded frame, an encapsulated drivetrain and many other details ensure a long service life and exceptional robustness – this way the Unimog also meets the tough requirements of the energy industry.
And this distinguishes the Unimog, too: All-wheel drive with differential locks, single tyres and Tirecontrol plus central tyre inflation system, high payloads and powerful interfaces for heavy equipment such as cranes. After all, the Unimog is a special device for special tasks.
Offroad & Leisure.
Whether highly off-road capable cross-country motorhome or robust and reliable expedition vehicle, whether for hunting or rallies: Wherever the road leads, the Unimog convinces with great reliability, high robustness, unique off-road capability and high payload. In addition, excellent driving and operating comfort as well as numerous optional technical modifications available ex works. Thanks to the close cooperation with the bodybuilder partners, there are almost no limits to further individual wishes.
At home where others cannot even dream of going.
Thanks to powerful, reliable engines that deliver up to 170 kW and an indestructible drive-system and chassis concept, it masters mud, scree and sand as well as snow, ice and deep river beds – even when equipped with individual attachment and body solutions.
Public service sector.
Opens new possibilities.
The highly-off-road-capable Unimog, too, is available with equipment for municipal services. This opens up new possibilities because, thanks to being equipped with powerful dual-circuit municipal hydraulics, both the Unimog U 4023 and the U 5023 are outstandingly well-suited, for example for use with an automatic spreader and snow plough – and are therefore predestined for municipal services yards in cities and villages at risk of flooding.
The Unimog with municipal equipment masters classic tasks in road maintenance and transport and easily tackles fording bodies of water up to 1.20 metres deep as well as driving on rugged, arduous terrain. This means technical help as well as rescue or recovery, for example in high water areas inaccessible to other vehicles.. Last but by no means least, the Tirecontrol plus central tyre inflation system and the high payload are of valuable service here.
With all-wheel drive, robust drivetrain and extreme torsional flexibility, the highly off-road-capable Unimog always offers a clear advantage in rough terrain: for example when working in crop protection. The ex-works automatic tyre pressure regulation system provides excellent traction and has a particularly low impact on the ground. The best preconditions for working in the field – as are its high payload and ground clearance.
Working in the field with low impact on the soil. Swift on the road.
Everything including engines, dimensions, axles and fuel tank volumes, as well as approach and departure angles.
Models and variants.
The highly off-road-capable Unimog: Engine overview.
Highlights and other facts.
Off road perfection.
The Unimog U 4023/U 5023 makes its way.
Advancement and safety, perfection and responsibility, power and innovation – those are just some of the values which Unimog customers rightfully connect with Mercedes-Benz and for which Unimog vouches. It combines great efficiency, state-of-the-art large-series production technology and outstanding off-road capability to form a truly successful overall concept that stands for Mercedes-Benz’s decade-long experience in the development and production of highly off-road capable commercial vehicles.
A unique chassis concept.
The off-road capability of the Unimog begins with its unique chassis concept: The torsionally flexible chassis with 3-point mounting of cab, engine and transmission as well as the axle suspension with thrust tube technology, wishbones and coil springs allow axle articulation of up to 30 degrees. All-wheel drive, single tyres, Tirecontrol plus central tyre inflation system and differential locks ensure maximum off-road traction. And the vehicle’s low centre of gravity ensures stability even on extremely steep slopes. When off-road, the Unimog also benefits in particular from its ground clearance of up to half a metre.
Versatility made simple.
Even in the deepest wilderness, hydraulic, mechanical and electric drives deliver the right output for a wide variety of implements and add-on equipment. The well thought-out drive concept predestines the vehicle for a wide variety of tasks and applications. Several attachment and body mounting spaces with standardised connection points make it very easy to attach bodies and swap implements.
Attachment and body mounting possibilities.
Balanced axle load distribution as well as about very good visibility conditions.
Convincing with safety.
The safety features of the highly off-road capable Unimog include its low centre of gravity and balanced axle load distribution, which has a positive effect on the vehicle’s handling, as well as enabling excellent visibility in the range of travel and operation. The optional camera monitor system further improves vision. And when the Unimog does have to stop, it does so with the pneumatic braking system with off-road ABS, automatic load-dependent brake force control (ALB) and disc brakes on all four wheels.