2015 Freightliner Business Class M2 100 106 106V 112 112V Workshop Manual STI-457 PDF

Description

2015 Freightliner Business Class M2 100 106 106V 112 112V Workshop Manual STI-457 PDF

The 2015 Freightliner Business Class M2 100 106 106V 112 112V Workshop Manual STI-457 PDF is a comprehensive 3,467-page service and repair reference for the Business Class M2 family. The cover identifies models M2 100, M2 106, M2 106V, M2 112, and M2 112V, with document number STI-457, Supplement 28 dated September 2015. The manual is organized by Freightliner system groups and combines principles of operation, removal and installation procedures, disassembly and assembly where applicable, troubleshooting, specifications, torque values, test procedures, wiring information, and illustrated component views.

File Details

• Manual type: Workshop Manual
• Brand: Freightliner
• Models: Business Class M2 100, M2 106, M2 106V, M2 112, M2 112V
• Document number: STI-457
• Supplement: S28 / Supplement 28
• Date: September 2015
• Language: English
• Page count: 3,467 pages
• File format: PDF

Workshop Information and Repair Depth

This Freightliner Business Class M2 workshop manual is structured for service work rather than basic vehicle operation. Early sections establish fastener identification, tightening practice, U.S. customary and metric torque tables, vehicle identification, and VIN decoding. Engine-related material includes engine mounts, EPA07/EPA10 information, drive-belt inspection and replacement, and Caterpillar 3126 engine removal and installation. The manual also documents air intake ducting, air cleaner service and restriction checking, charge-air-cooler leakage and restriction tests, and multiple air-compressor systems including Bendix Tu-Flo 550/750, WABCO, and Bendix BA-921 units.

Electrical and starting-system coverage is similarly practical. Alternator sections include removal, installation, testing, terminal and mounting torque data, while the starter section explains system operation, starting interlocks, removal and installation, fault-code-related diagnosis, slow-cranking diagnosis, no-crank and single-click conditions, and spinning or grinding symptoms. Cooling-system chapters cover radiator assemblies, pressure testing, disassembly and assembly, coolant-level sensing, flushing, fan clutches, and troubleshooting for abnormal coolant temperature. The manual also contains extensive chassis, suspension, axle, brake, steering, fuel, exhaust, electrical, cab, door, HVAC, hood, restraint, and paint material.

Examples of detailed specifications and diagnostic data appear throughout the book. The air-compressor chapters provide operating specifications, troubleshooting tables, pressures, temperatures, flow requirements, and fastener torques. The cooling and charge-air sections include pressure-drop and leakage tests. The electrical sections use circuit diagrams and measured-voltage checks. Chassis sections include torque tables, special-tool references, exploded component illustrations, and adjustment or inspection procedures. This makes the STI-457 manual useful when a repair requires both the sequence of work and the supporting values that determine whether a component is correctly installed or operating within the manual’s limits.

IMAGES PREVIEW

Chapters Covered

• 00 – General Information: abbreviations, Metric/U.S. customary conversion, vehicle receipt and pre-delivery information, threaded fasteners, fastener torque specifications, and vehicle identification numbering.
• 01 – Engine: engine mounts and isolators, EPA07/EPA10 engine information, drive-belt inspection and replacement, and Caterpillar 3126 engine removal and installation.
• 09 – Air Intake: air intake ducting, air cleaner element and housing service, restriction checking, and charge-air-cooler removal, inspection, leakage testing, flushing, and restriction testing.
• 13 – Air Compressor: Bendix Tu-Flo 550/750, WABCO, and Bendix BA-921 compressor service, troubleshooting, specifications, and special-tool information.
• 15 – Alternators and Starters: alternator removal, installation and testing; starter operation, removal and installation, circuit diagnosis, troubleshooting, and torque specifications.
• 20 – Engine Cooling/Radiator: cooling-system troubleshooting, radiator assembly service, pressure testing, surge tank and coolant-level sensor work, flushing, block heater, and fan-clutch service.
• 25 – Clutch: clutch and hydraulic-system service including removal, installation, adjustment, component procedures, and applicable specifications.
• 26 – Transmission: transmission-related vehicle service including Allison automatic transmission material, SmartShift controls, and Mercedes-Benz transmission service sections.
• 30 – Throttle Control: electronic throttle-control components, pedal-position sensing, inspection, replacement, and related engine-interface information.
• 31 – Frame and Frame Components: frame, crossmember, bumper, towing and related frame-component procedures, cautions, and fastener requirements.
• 32 – Suspension: front and rear suspension systems, leaf-spring arrangements, cab/chassis suspension-related procedures, ride diagnosis, and suspension component service.
• 33 – Front Axle: front axle and wheel-end service, including steering-knuckle, hub, bearing, alignment-related, and axle-component procedures.
• 35 – Rear Axle: rear axle alignment, oil seals, wheel hubs, brake drums, wheel bearings, and Detroit rear axle service and specifications.
• 40 – Wheels and Tires: wheel and tire service information and related installation procedures.
• 41 – Driveline: driveline, universal-joint, shaft, support-bearing, and driveline-related service procedures.
• 42 – Brakes: air-brake and foundation-brake components, brake chambers, valves, ABS-related material, disc-brake sections, troubleshooting, adjustment, and specifications.
• 46 – Steering: steering driveline, steering wheel and column, power-steering gears, power-steering pump, troubleshooting procedures, and specifications.
• 47 – Fuel: fuel tank and mounting components, tank-mounted steps, fuel-system priming, fuel-line routing, removal and installation procedures.
• 49 – Exhaust: EPA07 and EPA10 aftertreatment systems, aftertreatment device service, exhaust bellows, diesel particulate filter-related components, and EPA10 diesel exhaust fluid system service.
• 54 – Electrical, Instruments, and Controls: wiring, multiplexing, batteries, datalinks, instrumentation, bulkhead and chassis modules, lighting, smart switches, power distribution, body-builder interfaces, PTO controls, trailer electrical systems, stability control, and related electrical systems.
• 60 – Cab: windshield and cab components, interior panels and trim, cab mounting and suspension-related service, welding cautions, and other cab procedures.
• 72 – Doors: door trim, door removal and installation, seals, latches, hardware, adjustment, and torque specifications.
• 82 – Windshield Wipers and Washer: Trico electric wipers, unitizing tube, connecting arm, wiper motor, and washer reservoir replacement.
• 83 – Heater and Air Conditioner: Valeo HVAC service, heater core, evaporator, actuators, refrigerant service operations, leak detection, compressor-related sections, troubleshooting, specifications, and HVAC wiring diagrams.
• 88 – Hood, Grille, and Cab Fenders: hood, grille and fender service, hood adjustment, component replacement, repair procedures, and torque specifications.
• 90 – Fire Suppression Systems: TwinFlow and PowerFlow fire pump sections.
• 91 – Seats and Restraint Systems: seat-belt and restraint-system service information.
• 98 – Paint: paint-related repair information.

Taken together, these groups make the 2015 Freightliner Business Class M2 100 106 106V 112 112V Workshop Manual STI-457 PDF a broad vehicle-level repair reference. It moves from general service practices through powertrain support systems and chassis work to electrical controls, cab equipment, HVAC, body hardware, and specialty systems. The repeated use of figures, exploded views, wiring diagrams, troubleshooting charts, service-operation sequences, special-tool references, and specification tables gives technicians the information needed to plan and execute many repairs without relying on a short summary or generic procedure.

Important Coverage Boundary

The manual states that major drivetrain component service information is not included in this publication and is located in the respective component manufacturer’s service manual. It also directs routine maintenance schedules and additional maintenance information to the separate Business Class M2 Maintenance Manual. Engine service in the EPA07/EPA10 section is specifically limited to components installed by Daimler Trucks North America, while complete engine adjustment, preventive maintenance, and internal engine repair are referred to the engine manufacturer’s literature. Buyers needing complete internal overhaul procedures for a specific engine, transmission, or rear axle should therefore use the corresponding component manual alongside STI-457.

System-Specific Service Examples

The manual’s practical scope can be seen in procedures such as engine-mount replacement for Detroit DD13 and Cummins ISB/ISC/ISL applications, Detroit and Cummins drive-belt routing and replacement, Caterpillar 3126 engine removal and installation, charge-air-cooler leakage testing, air-compressor diagnosis, alternator voltage-drop testing, starter-circuit troubleshooting, radiator pressure testing, suspension component service, steering work, fuel-tank procedures, and aftertreatment/DEF system service. EPA07 and EPA10 diagrams identify components such as EGR hardware, turbocharger, DOC, DPF, DEF tank, DEF injector, mixing tube, and SCR catalyst chamber. The electrical group extends into multiplexing, control modules, lighting, body-builder interfaces, and power distribution, while the HVAC chapters cover component replacement, refrigerant service and electronic leak detection.

Because STI-457 spans vehicles built with different configurations and components, the applicable procedure must be matched to the vehicle’s installed equipment. The manual supports that process with VIN information, model and engine/brake coding tables, component-specific sections, and configuration notes. It is especially useful for workshops servicing more than one Business Class M2 variant because the same publication brings the M2 100, M2 106, M2 106V, M2 112, and M2 112V into one structured reference.

Get the Freightliner Business Class M2 Workshop Manual

Use the 2015 Freightliner Business Class M2 100 106 106V 112 112V Workshop Manual STI-457 PDF when the job calls for model-specific service sequences, diagnosis, component removal and installation, adjustment information, wiring and system diagrams, torque values, test limits, or illustrated assembly guidance. Having the prescribed procedures and specifications beside the vehicle helps reduce guesswork during repair and provides a consistent reference for checking the work as it progresses. This is an instant PDF download after payment, with no physical book or shipping delay; open it on a compatible phone, tablet, laptop, or desktop, and print the pages you need for the workshop.