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Mercedes-Benz Unimog BlueTec 6 User Manual

Mercedes-Benz Unimog BlueTec 6
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Extreme off-road Unimog BlueTec 6
Technical Manual
August 2014 issue

Table of Contents

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Mercedes-Benz Unimog BlueTec 6 Specifications

General IconGeneral
BrandMercedes-Benz
ModelUnimog BlueTec 6
CategoryTrucks
LanguageEnglish

Summary

Concept and Sales Reasoning

Unimog Model Series Overview

Details different Unimog models and their key specifications.

Unimog Product Concept

Explains the core concepts and distinguishing features of the Unimog range.

Extreme Off-Road Capability

Highlights features enabling superior performance in extreme off-road conditions.

Torsional Flexibility Concept

Illustrates how the Unimog achieves high torsional flexibility for obstacle negotiation.

Approach, Departure, and Breakover Angles

Specifies critical angles for navigating inclines and obstacles.

Fording Capability

Details features that allow the vehicle to operate safely in water.

Optional Fording Capability Enhancements

Describes optional equipment to increase fording depth to 120 cm.

Frame Construction and Design

Explains the robust U-section frame and its advantages for off-road use.

Frame Mounting Systems

Details 3-point mounting of major components for stress-free attachment.

Optional Frame Equipment for Towing

Covers frame-strengthening options for increased towing capacity.

Trailer Hitch Options

Lists various trailer hitches with their specifications and load ratings.

Engine Concept and OM934 Specifications

Introduces the OM934 engine, its key features, and technical data.

Engine Performance Curves

Presents graphs illustrating engine output, torque, and fuel consumption.

Drive Clutch System

Details the single-plate dry clutch, its components, and operational advantages.

Engine Brake and Control Modes

Explains the engine brake and selectable engine control characteristics.

BlueTec 6 Emission Control System

Illustrates the exhaust aftertreatment system components (EGR, DPF, SCR).

BlueTec 6 Components and Advantages

Details AdBlue components and the benefits of the BlueTec 6 technology.

Exhaust Emission Standards

Presents emission limiting values for Euro V and VI standards.

Diesel Particulate Filter Regeneration

Explains passive and active regeneration processes for the DPF.

Radiator System Design

Describes the cooler setup and their advantages for cooling and protection.

Optional Engine Equipment

Covers optional features like fuel preheating and vertical exhaust systems.

Main Transmission System

Details the fully synchronised 8-speed manual gearbox and its features.

Transmission Overview and Gear Speeds

Shows a diagram of the transmission and speed ranges for different gears.

Engine Management System

Explains operation via multifunction lever and automatic gear determination.

Electronic Quick Reverse (EQR)

Describes the EQR feature for fast forward/reverse gear changes.

Optional Automatic Transmission (EAS)

Details the EAS system, its modes, and benefits for driver workload.

Off-Road Gear Range Options

Covers optional off-road gear ranges and gearbox oil coolers.

Portal Axle Design

Explains the portal axle configuration, hub reduction, and vehicle clearance.

Axle Components and Suspension Layout

Shows the layout of axle components, cross struts, and stabilisers.

Axle Suspension System

Details the torque tube, coil springs, and shock absorbers for axle suspension.

Torque Tube Technology Benefits

Highlights advantages of torque tube technology for axle articulation and propeller shaft protection.

Drive System and Differential Locks

Explains drive system variants, engageable AWD, and differential lock functions.

Single Tyre Types and Applications

Discusses different tyre types and their suitability for various terrains.

Tyre Pressure Control System Overview

Introduces the electro-pneumatic system for adjusting tyre pressure on the move.

Tyre Pressure Control System Operation

Details system adaptation, adjustment, and user interface for tyre pressure control.

Impact of Tyre Pressure on Traction

Explains how tyre pressure affects ground contact area and tractive force.

Axle Protection Features

Covers protective features for axles, such as guard plates and enhanced sealing.

Dual-Circuit Braking System

Details pneumatic disc brakes, load-dependent braking, and parking brake.

4-Channel ABS Functionality

Explains the 4-channel ABS, its modes, and safety benefits.

Optional Brake System Features

Describes options like front axle parking brake and compressed air connections.

Power Steering System Design

Details the hydraulically assisted steering system and its advantages.

Steering Options for Traffic Direction

Covers left-hand/right-hand drive configurations and lighting for traffic.

Cab Design and Layout

Explains the mid-engine concept, seating position, and cab-behind-engine structure.

Cab Doors and Exterior Mirrors

Describes door access features and adjustable exterior mirrors.

Cab Safety Standards

Discusses ECE-R-29/03 crash safety testing and cab occupant protection.

Optional Cab Exterior Equipment

Covers optional exterior features like cameras and steps for cab access.

Optional Cab Exterior Features

Details features like roof hatches and cab tilting mechanisms.

Optional Exterior Lighting and Visibility

Describes heated windscreens, additional headlamps, and beacons.

Cab Interior Space and Storage

Highlights interior spaciousness, stowage compartments, and seat configurations.

Cockpit Controls and Instrumentation

Describes the dashboard layout, controls, and instrument cluster illumination.

Steering Wheel and Multifunction Lever

Details the multifunction steering wheel and lever for vehicle control.

Instrument Cluster Information Display

Explains the instrument cluster's TFT display and driver information system.

Standard Control Functions Overview

Outlines the functions of the instrument cluster, steering wheel, and multifunction lever.

Cab Climate Control System

Details the heating, ventilation, and air conditioning system for cab comfort.

Optional Cab Interior Seating Options

Covers driver and co-driver suspension seats with heating and adjustment features.

Optional Cab Interior Comfort Features

Describes additional interior features like a centre seat and stowage box.

Optional Cab Interior Climate Features

Details auxiliary heater, engine preheating, and power window options.

Optional Cab Interior Entertainment Systems

Covers CD radio, Bluetooth, and enhanced instrument cluster display.

Auxiliary Drive Component Locations

Shows the placement of engine and gearbox power take-off units on the chassis.

Engine PTO to Rear Specifications

Details the engine PTO to rear, its output, torque, and connection type.

Transmission PTO Variants: Data Comparison

Compares transmission PTOs by speed, direction, torque, and connection.

Gearbox PTO Retrofitting Preparation

Mentions preparation for retrofitting gearbox PTOs for various models.

Hydraulic System Overview Diagram

Provides a diagram of the hydraulic system, showing key components and connections.

Single Spool Hydraulic System Details

Details the hydraulic system's pressure, flow rate, and control features.

Rear Hydraulic Connection Options

Describes rear oil supply connections for hydraulic systems, similar to front connections.

Electronic Networking and CAN Bus System

Explains electronic control systems, CAN bus, and diagnostic interfaces.

Electrical System Implement Socket [E87]

Details the 32-pin socket for connecting implements and external controls.

Electrical System Modules and Power Sources

Covers parameterisable modules, alternators, and battery configurations.

Electrical System Sockets and Connections

Describes various sockets for power supply and data transfer for implements.

Battery Cutoff Switch Functions

Explains the operation of manual and electronic battery cutoff switches.

Electrical System for Hazardous Goods Transport

Details special electrical parts for ADR transport and battery support.

Attachment and Mounting Area Overview

Illustrates various points on the chassis for attaching equipment and bodies.

Mounting Area Features and Benefits

Discusses factory-designed mounting points and their advantages for body integration.

Optional Mounting Brackets and Fixtures

Covers front mounting brackets, heavy equipment brackets, and non-MB body attachment fixtures.

Optional Floor Assemblies and Mounting Plates

Details floor assemblies for special bodies and front mounting plates for equipment.

Technical Data

Engine Data OM934

Provides detailed technical specifications for the OM934 engine, including power, torque, and dimensions.

Engine Performance Curves

Displays graphs of engine output, torque, and fuel consumption versus engine speed.

Engine Filling Capacities

Lists fuel and AdBlue capacities for U 4023 and U 5023 models.

Transmission Specifications

Details the main transmission model, designation, and clutch specifications.

Vehicle Speed Charts by Gear

Shows vehicle speeds for each gear in basic and off-road ranges for U 4023/U 5023.

Vehicle Speed Conversion Factors

Provides factors to adjust vehicle speed based on different tyre sizes.

Axle Design and Suspension Data

Describes axle design, differential locks, suspension, and fording capabilities.

Axle Technical Data by Model

Presents technical data for U 4023 and U 5023 axles, including flange dimensions and drive ratios.

U 4023 Rim and Tyre Size Data

Lists rim codes, track width, and compatible tyre sizes for U 4023.

U 5023 Rim and Tyre Size Data

Lists rim codes, track width, and compatible tyre sizes for U 5023.

Braking System Summary

Summarizes the pneumatic brake system, ABS, and parking brake.

Cab Exterior Specifications

Details cab body, glazing, mirrors, doors, and safety testing.

Cab Interior Features and Controls

Describes interior equipment, seats, console, stowage, and climate control.

Engine PTO to Rear: Technical Details

Provides detailed specifications for the engine PTO to rear.

Transmission PTO Variants: Data Comparison

Compares transmission PTOs by speed, torque, and connection type.

Hydraulic System Technical Data

Lists technical data for the single hydraulic system, including oil capacity and pressure.

On-Board Electrical System Overview

Details the 24V electrical system, starter, alternator, and battery.

Permissible Load Values

Lists permissible gross vehicle, front axle, and rear axle loads.

Trailer Hitch Specifications

Details specifications for various trailer hitches, including jaw size and drawbar load.

U 4023 Towing Capacities

Shows permissible towing capacities with and without trailer brakes for U 4023.

U 5023 Towing Capacities

Shows permissible towing capacities with and without trailer brakes for U 5023.

Tyre Availability and Designation

Lists available tyre treads and their designations for different vehicles.

Tyre Technical Data and Labels

Provides detailed tyre data including rolling circumference and external diameter.

Tyre Load Capacity by Load Index

Lists tyre load capacities corresponding to different load indexes.

Speed Allocations for Tyre Load Capacity

Shows permissible tyre load capacities (%) at various vehicle speeds.

MPT Tyre Suitability and Types

Describes Multi-Purpose Tyres (MPT), their sectors, and suitability.

AS Tyre Suitability and Types

Describes Agricultural/Special (AS) tyres, their sectors, and suitability.

U 4023 Technical Drawing and Dimensions

Shows a technical drawing with dimensions for the U 4023 BlueTec 6.

U 5023 Technical Drawing and Dimensions

Displays a technical drawing with dimensions for the U 5023 BlueTec 6.

Vehicle and Trailer Climbing Resistance

Presents graphs illustrating vehicle and trailer climbing resistance.

U 4023 Tractive Force Diagrams

Shows tractive force diagrams for U 4023 at different gross weights.

U 5023 Tractive Force Diagrams

Displays tractive force diagrams for U 5023 at different gross weights.

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