Technical Information 4-Digit Group System Guide

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00. Overall vehicle 46. Steering
01. Complete engine, crankcase ventilation, cylinder head, etc. 47. Fuel system
03. Crank assembly 49. Exhaust system
05. Engine timing 54. Electrical system, equipment and instruments
06. Fuel cell system 55. Auxiliary drive systems, hydraulic and linkage systems
07. Mixture formation 57. Central lubrication system
08. Electrical drive system 58. Tools
09. Air intake, turbocharging 60. Body - General
13. Air compressor, belt drives 61. Substructure
14. Exhaust manifold, engine brake, emission control system 62. Front end and fire wall
15. Electrical system – engine 63. Side wall
18. Engine lubrication, engine oil cooling 64. Rear wall and rear end
20. Engine cooling system 65. Roof
22. Engine suspension 67. Windows
23. Special engine equipment 68. Interior equipment
25. Clutch 72. Doors
26. Manual transmission 77. Sliding roof, soft top, top attachments
27. Automatic Transmission 80. Central locking system, convenience operation, drive authorization system
28. Transfer case 82. Electrical system body
29. Pedal assembly 83. Climate control
30. Throttle control, speed control systems 85. Small repair
31. Frame, trailer operation 86. Emergency equipment, disability equipment, sanitary equipment, galley
32. Suspension 88. Detachable body components, exterior flaps
33. Front axle 91. Seats, bunks, restraint systems
35. Rear axle 94. Body noises, noise insulation
40. Wheels, chassis alignment check 97. Body sealing, corrosion protection
41. Propeller shaft 98. Paintwork
42. Brakes – hydraulic and mechanical systems 99. Printed matter
43. Brakes - pneumatic system and auxiliary brakes    
00 Overall vehicle 01 Complete engine, crankcase ventilation, cylinder head, crankcase
00.00 General 01.00 General
00.01 User information 01.10 Complete engine
00.10 Complete vehicle, technical data, tests required by law 01.20 Crankcase ventilation, cylinder head cover
00.18 Pneumatic in vehicles 01.30 Cylinder head
00.19 Electrical vehicle, complete network 01.40 Crankcase, timing case cover, end cover
00.20 Maintenance, service system (FSS, ASSYST) 01.45 Oil pan
00.30 Vehicle diagnosis system (FDS) 01.50 Constantly open throttle valve
00.40 Service products 01.60 Timing case
00.45 Repair material    
00.50 Drive systems    
00.60 Jacking up, towing    
00.70 Laying up and recommissioning vehicle    
00.80 Central vent unit for major assemblies    
03 Crank assembly 05 Engine timing
03.00 General 05.00 General
03.10 Connecting rods, pistons 05.10 Timing chain drive, toothed belt drive
03.20 Crankshaft 05.20 Camshaft, camshaft adjustment
03.30 Flywheel, driving disc, vibration damper, starter ring gear 05.30 Valves
06 Fuel cell system 07 Mixture formation
06.00 General 07.00 General
06.10 Fuel cell 07.02 Injection pump, Plug-in pump, High pressure pump
06.20 Control units 07.03 Injection jets, Injection valves, Lines
06.30 Modules 07.04 Sender, Feeler, Sensors
06.40 Sensors 07.05 Valves
06.50 Cooling 07.07 Air volume gauge, Air mass gauge
    07.08 Control modules
    07.09 Vacuum system
    07.11 Diesel injection system with in-line pump and mechanical control (M/RSF)
    07.12 Diesel injection system with in-line pump and electronic control (ERE, EDC)
    07.13 Diesel injection system with distribution pump (EVE, EDC)
    07.14 Injection timing
    07.15 Diesel injection system (PLD), Engine governor (MR)
    07.16 Common-rail diesel injection (CDI)
    07.17 Pressure converter, Pressure governor
    07.20 Carburetor system
    07.31 Mechanical CFI gasoline injection system
    07.32 Electronic CFI gasoline injection system
    07.41 LH sequential multiport fuel injection system
    07.51 HFM-SFI fuel injection/ignition system
    07.52 PEC-SFI fuel injection/ignition system
    07.53 MSM fuel injection/ignition system
    07.54 Gas injection and ignition system
    07.55 Electronic gas injection system (EGM)
    07.61 ME fuel injection/ ignition system
    07.70 CGI-SFI fuel injection/ignition system
08

Electrical drive, hybrid drive system

 09 Air intake, turbocharging
08.00 General 09.00 General
08.10 Electric motor 09.10 Air cleaner
08.20 Control units/modules 09.20 Intake manifold, intake manifold preheater
08.30 Hybrid drive system 09.30 Intake air preheater
    09.40 Turbocharger
    09.41 Charge air pipe/charge air cooling
    09.50 Compressor
13
Air compressor, belt drives
14
Exhaust manifold, engine brake, emission control system
13.00 General 14.00 General
13.10 Air compressor 14.10 Exhaust manifold
13.20 Belt drive, general 14.15 Engine brake
13.21 Multi-belt drive 14.20 Exhaust gas recirculation
13.22 Single-belt drive 14.30 Secondary air injection
13.25 Belt tensioning device 14.40 Exhaust after-treatment, AdBlue
13.30 Compressor (compressed air system)    
13.40 Compressor (A/C system)    
15
Electrical system - engine
18
Engine lubrication, engine oil cooling
15.00 General 18.00 General
15.10 Ignition system, general 18.10 Oil pump
15.11 TIC ignition system 18.20 Oil filter
15.12 Distribution Ignition (DI) system 18.30 Oil cooling system
15.15 ECI ignition system 18.40 Oil level/oil pressure sensor
15.18 Cable sets 18.46 Automatic engine oil refill
15.20 Preglow system    
15.30 Starter    
15.40 Generator    
15.45 Flame starting system    
15.50 Oil pressure sensor    
15.60 Temperature sensor    
20
Engine cooling system
22
Engine suspension
20.00 General 22.00 General
20.10 Coolant pump, coolant thermostat 22.10 Engine mounts, engine brackets, supports
20.20 Radiator, coolant hoses 22.20 Engine bearing
20.30 Coolant expansion/overflow tank    
20.40 Fan, fan clutch    
20.50 Rear cooling system    
23 Special engine equipment 25 Clutch
23.00 General 25.00 General
23.10 Engine PTO, front 25.10 Clutch
23.20 Engine PTO, rear 25.19 Electric clutch
    25.20 Clutch actuation
    25.30 Engine Clutch Control (MKR) - Clutch Control (KS)
    25.40 Torque converter clutch (WSK)
    25.60 Governor hydraulic clutch
26 Manual transmission 27 Automatic transmission
26.00 General 27.00 General
26.10 Complete transmission 27.10 Complete transmission
26.18 Transmission - pneumatic system 27.18 Transmission - pneumatic system
26.19 Transmission - electrical system 27.19 Transmission - electrical system
26.20 Electronic Power Shift (EPS) - Gear Control (GS) 27.20 Torque converter
26.21 Electronic Drive Control (EAS) - Automatic Gear Selection (AG/AGE) - Automatic Gear Control (AGS) 27.30 Cover
26.30 Cover 27.35 Valve body
26.35 Valve body 27.40 Housing
26.40 Splitter group 27.45 Power take-off
26.45 Power take-off, PTO transmission 27.50 Gear assembly
26.50 Gear assembly, shafts, differential 27.51 Clutch assembly, multiple-disc brake
26.55 Transmission-oil cooling, oil pump 27.52 Pulley set, steel thrust belt
26.56 Transmission-oil filter 27.55 Transmission oil cooling
26.60 Gearshift 27.56 Transmission oil filter
    27.57 Oil pump
    27.60 Gearshift, control
    27.70 Integrated retarder
28 Transfer case 29 Pedal assembly
28.00 General 29.00 General
28.10 Complete transfer case 29.10 Pedals, bearing bracket
28.18 Transmission - pneumatic system    
28.19 Transfer case - electrical system    
28.40 Housing    
28.50 Gear assembly, shafts    
28.55 Transmission oil cooling, oil pump    
28.56 Transmission-oil filter    
28.60 Gearshift    
28.70 4MATIC - hydraulic system    
28.80 Reversing gear    
30 Throttle control, speed control systems 31 Frame, trailer operation
30.00 General 31.00 General
30.10 Mechanical throttle control 31.10 Trailer coupling, fifth-wheel coupling
30.12 Throttle control, chassis side 31.11 Trailer coupling - mechanical system
30.14 Throttle control, engine side 31.19 Trailer coupling - electrical system
30.16 Throttle control, electronic 31.20 Subframe
30.20 Electronic accelerator (EA)/Cruise control (CC)/Idle speed control (ISC) 31.30 Frame, lateral underride guard
30.21 Cruise control (CC)/Idle speed control (ISC) 31.35 Axle/engine sub-frame
30.22 Idle speed control (ISC)    
30.23 Idle speed adjuster  
30.30 Cruise control (CC), Distronic (DTR)    
30.33 Electronic motor governor    
30.35 Vehicle motor governor (FMR)    
30.36 Speed limiter (GB, GBE, GBL)    
32 Suspension 33 Front axle
32.00 General 33.00 General
32.20 Steel springs, torsion bars, Niveaumat 33.10 Complete front axle
32.22 Air suspension 33.15 Axle links
32.25 Shock absorbers, damper struts, spring struts 33.20 Wheel location, wheel hubs
32.30 Level control 33.25 Axle housing, stub axle
32.31 Level control with chassis lowering 33.30 Final drive, differential, drive shaft
32.32 Level control with adaptive damping system (ADS) 33.40 Differential locks
32.33 Ground clearance compensator (NR/ENR) 33.60 Half axles
32.34 Anti-roll governor (WR)    
32.35 Stabilizer    
32.40 Hydropneumatic suspension    
32.50 Active Body Control (ABC)    
35 Rear axle 40 Wheels, chassis alignment check
35.00 General 40.00 General
35.10 Complete rear axle 40.10 Wheels, tires
35.15 Axle links 40.15 Tire pressure/tire pressure monitoring
35.20 Wheel location, wheel hubs 40.16 Tire pressure control system
35.25 Axle housing, stub axle 40.20 Chassis measurement
35.30 Final drive, drive shafts 40.30 Chassis measurement following accident
35.31 Rear axle center assembly    
35.40 Differential locks    
35.41 Automatic locking differential (ASD)    
35.50 Additional axle (forward-trailing/trailing/middle/trailer axle)    
41 Propeller shaft 42 Brakes - hydraulic and mechanical systems
41.00 General 42.00 General
41.10 Propeller shaft 42.10 Service brake
41.20 PTO drive shaft 42.15 Mechanical system
41.30 Vibration elimination equipment 42.20 Parking brake
41.40 Intermediate bearing 42.22 Regenerative braking system
    42.25 Electronic-pneumatic brake (EPB)
    42.30 Anti-lock brake system (ABS)
    42.31 Brake assist (BAS)
    42.32 Active Brake Assist ( ABA)
    42.35 Electronic traction system (ETS)
    42.40 Traction regulation (ASR)
    42.45 Electronic stability program (ESP)
    42.46 Sensotronic Brake Control (SBC)
    42.47 Adaptive Brake (ABR)
    42.50 Hydraulic system
    42.60 Pneumatic system
    42.70 Trailer brake
    42.80 Axle-load dependent brake
43 Brakes - pneumatic system and auxiliary brakes 46 Steering
43.00 General 46.00 General
43.05 Vacuum pump 46.10 Steering wheel, jacket tube, steering shaft, steering lock
43.10 Pneumatic brake unit 46.11 Steering wheel heater
43.15 Bus stop brake 46.14 Manual steering
43.20 Hydraulic brake unit 46.15 Steering column adjustment
43.25 Engine brake 46.20 Steering gear
43.30 Retarder (hydraulic) 46.25 Hydraulic steering
43.40 Retarder (electric) 46.30 Power steering pump
    46.35 Electrical steering
    46.40 Steering linkage
    46.50 Speed-sensitive power steering (SPS)
    46.60 Supplementary steering
    46.70 Changeable steering Variopilot
    46.80 Auxiliary rear axle steering, auxiliary steering axle (ZL), electro-hydraulic auxiliary steering (EHZ)
47 Fuel system 49 Exhaust system
47.00 General 49.00 General
47.10 Fuel tank 49.10 Exhaust pipes, catalytic converter, mufflers
47.20 Fuel pump, filter 49.20 Exhaust aftertreatment unit
47.21 Fuel preheater    
47.25 Lines, hoses    
47.30 Fuel evaporation control system    
47.31 Fuel tank ventilation system    
47.40 Control units/modules    
47.50 Sender, feeler, sensors    
47.60 F-Cell Tank System    
54 Electrical system, equipment and instruments 55 Auxiliary drive systems, hydraulic and linkage systems
54.00 General 55.00 General
54.10 Battery, power supply, voltage converter 55.10 Power take-off shafts
54.15 Fuse and relay box 55.20 Tipper system
54.18 Cable harnesses 55.30 Hydraulic drive, hydraulic pumps
54.19 Integrated electronic system (IES) 55.40 Lifting device/hoist
54.20 Module box 55.50 Linkage systems
54.21 Control units / basic modules 55.60 Front power lift
54.22 Diagnostic test coupling/diagnostic socket 55.70 Rear power lift
54.25 Switches 55.80 Three-point linkage
54.30 Instrument cluster, display instruments, hazard warning device 55.90 Hydrostatic traversing gear
54.31 Main control panel, electrics compartment    
54.35 Signaling system    
54.40 Marten protection system    
54.45 Auxiliary control panel    
54.50 Trip computer    
54.60 On-board computer, control terminal    
54.61 Speed recorder, trip recorder, taximeter    
54.65 Parking assist    
54.70 Proximity warning system    
54.71 Lane assist    
54.75 Speedometer shaft    
54.80 Duo/electrobus    
57 Central lubrication system 58 Tools
57.00 General 58.00 General
57.10 Gear pump unit 58.10 On-board tools
57.20 Distributors, lines 58.20 Special tools
57.30 Control unit - electrical system 58.30 Commercially available tools
    58.40 Workshop equipment/MB test equipment
    58.50 Self-manufactured tools
60 Body - general 61 Substructure
60.00l General 61.00 General
60.10 Rigging the straightening bench/straightening set 61.10 Frame floor system
60.20 Rigging the portal frame/portal set 61.20 Lower engine compartment paneling
60.25 High roof 61.25 Substructure frame
60.30 Platform 61.30 Splash guard
60.40 Box and van body 61.40 Underpan
60.70 Oscillation damper 61.45 Substructure paneling
60.80 Cab, cab mounting    
62 Front end and fire wall 63 Side wall
62.00 General 63.00 General
62.10 Front end 63.10 Side wall
62.20 Wheelhouse 63.20 Pillars
62.25 Fire wall 63.30 Outer longitudinal members
62.30 Front cross member and reinforcement 63.40 Main floor
62.40 Center section 63.50 Rear fenders
64 Rear wall and rear end 65 Roof
64.00 General 65.00 General
64.10 Rear wall 65.10 Roof paneling
64.20 Rear end 65.20 Roof frame
64.30 Corner paneling    
67 Windows 68 Interior equipment
67.00 General 68.00 General
67.10 Windshield 68.05 Garage door opener
67.20 Rear window 68.10 Instrument panel
67.29 Heated rear window - electrical system 68.20 Center console
67.30 Side windows 68.30 Coverings, trim
67.39 Electric side windows 68.40 Interior mirror
    68.49 Interior mirror - electrical system
    68.50 Curtains, roller blinds, luggage net
    68.60 Interior sun blinds
    68.69 Electric sun blinds
    68.70 Handles, grab rails
    68.72 Counter, destination indicator box
    68.74 Partition wall
    68.80 Loading floor
72 Doors 77 Sliding roof, soft top, top attachments
72.00 General 77.00 General
72.10 Front door 77.10 Manual sliding roof
72.12 Rear door 77.20 Electric sliding roof
72.14 Center door 77.21 Panoramic roof
72.15 Hinged doors 77.25 Wind deflector (spoiler)
72.16 Sliding doors 77.30 Vario roof, soft top - complete
72.18 Side door paneling 77.31 Soft top canvas
72.20 Tailgate, rear door 77.33 Vario roof, soft top - mechanical system
72.25 Inward folding doors 77.35 Vario roof, soft top - window
72.29 Doors - electrical system 77.37 Vario roof, soft top - hydraulic system
72.30 Shutting assist (SHI) 77.38 Vario roof/Soft top load assist
72.40 Door control 77.39 Vario roof, soft top - electrical system
    77.40 Roof rails
    77.45 Attachments
    77.50 Hardtop
    77.55 Roof hatches, emergency exits
    77.60 External sun blinds
    77.70 Mechanical pop-up roof
    77.75 Electric pop-up roof
80 Central locking system, convenience operation, drive authorization systems 82 Electrical system, body
80.00 General 82.00 General
80.10 Guide rods 82.10 Exterior lights
80.20 Central locking system, interior central locking 82.15 Headlamp cleaning system
80.30 Infrared remote control 82.20 Interior lights
80.35 Radio-frequency actuated, remote control 82.25 Signaling equipment/Emergency alarm system
80.40 Power locking 82.30 Windshield wipers
80.45 Convenience feature (CF)/Convenience locking system 82.35 Windshield washing system
80.50 Anti-theft alarm system (ATA), Interior motion sensor/Tow sensor 82.60 Radio, audio, video systems
80.57 Drive authorization system (DAS) 82.61 Auto Pilot System (APS), Audio 30 APS
80.61 Keyless-Go/Keyless-Entry 82.62 Loudspeakers, amplifiers, antennas
    82.64 CD changer
    82.70 Telephone, Voice-control-system(VCS)
    82.71 Two-way radio
    82.75 Roadfax
    82.80 Mobile office
    82.85 Navigation and Communication system (CNS, ICS, COMAND, FleetBoard)
    82.88 Toll system
    82.90 On-board communication system, multi-function steering wheel
    82.95 Emergency call system
83 Climate control 85 Small repairs
83.00 General 85.00 Spot repair (minor paint damage
83.10 Ventilation 85.10 Ding elimination (dent removal without painting)
83.20 Heating 85.20 Windshield repair (stone chipping)
83.25 Automatic heater 85.30 Rim repair (minor scratches on painted light alloy disk)
83.30 Air conditioning 85.40 Interior repair (seat cover, trim, dashboard, etc.)
83.40 Air conditioning (automatic) 86 Emergency equipment, disability equipment, sanitary equipment, galley
83.50 Rear air-conditioning 86.00 General
83.55 A/C compressor 86.10 Emergency equipment
83.57 Temperature control 86.20 Disability equipment (access aids, loading system)
83.60 Rear heater 86.30 Sanitary equipment
83.65 Refrigeration units 86.40 Refrigerator
83.70 Auxiliary/supplementary heater 86.60 Galley
83.75 Residual engine heat utilization system 86.61 Refrigerator box
88 Detachable body components, exterior flaps 91 Seats, bunks, restraint systems
88.00 General 91.00 General
88.10 Fenders 91.10 Front seats
88.20 Bumpers 91.12 Rear seats
88.30 Detachable components, underride guard 91.14 Center seats
88.40 Engine hood, front flap 91.16 Head restraints
88.50 Trunk lid 91.18 Seat covers
88.52 Retractable trunk lid grip (RTG) 91.20 Occasional seats, integrated child seats
88.60 Exterior flaps 91.21 Passenger seats
88.70 Exterior mirrors 91.22 Bench seat, folding bench seat
88.79 Exterior mirrors - electrical system 91.25 Multicontour seat (MKS), dynamic seat
88.80 Cover strips 91.27 Center armrest
88.85 Trim strips 91.29 Seats - electrical system
88.95 Slewing ring 91.30 Seat heater, seat ventilation
    91.40 Seat belts, emergency tensioning retractors
    91.45 Seat belt extenders
    91.50 Roll-over bar - mechanical system
    91.53 Roll-over bar - hydraulic system
    91.59 Roll-over bar - electrical system
    91.60 Airbag
    91.70 Sleeper cab
    91.75 Berths
94 Body noises, noise insulation 97 Body sealing, corrosion protection
94.00 General 97.00 General
94.10 Body noises 97.10 Body sealing
94.20 Noise insulation 97.20 Preservation
94.30 Noise encapsulation 97.30 Corrosion protection
98 Paintwork 99 Printed matter
98.00 General 99.00 General
98.10 Paintwork - metal surface 99.10 Certificate
98.20 Paintwork - plastic surface 99.20 Forms
98.30 Paint care