Mercedes-Benz W123 | Manual cover | Volume 2
  • Mercedes-Benz W123 | Manual cover | Volume 2
  • Mercedes-Benz W123 | Tempomat coding plug testing
  • Mercedes-Benz W123 | Trunk cover removal and installation
  • Mercedes-Benz W123 | T-Sedan back door glass pane removal and installation
  • Mercedes-Benz W123 | Air flow grille removal under the front bumper

Mercedes-Benz Service Manual Chassis & Body Series 123 | Volume 2

$10.00

Mercedes-Benz W123 workshop manual for body, interior and electrical systems.

Second volume of the Mercedes-Benz Service Manual Chassis & Body Series 123, focused on W123 body systems: electrical equipment, instruments, windows, doors, trunk lid, sliding roof, central locking system, interior equipment, seats and seat belts.

English PDF | 445 pages | Instant digital delivery.

  • Factory Mercedes-Benz publication focused on body and equipment.
  • Covers instruments, body electrical system and central locking.
  • Includes windows, doors, trunk lid, exterior flaps and sliding roof.
  • Useful for interior equipment, detachable body parts, seats and seat belts.
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Mercedes-Benz Service Manual Chassis & Body Series 123 | Volume 2 | PDF

Second volume of the workshop manual for chassis and body systems of Mercedes-Benz W123 Series models.

The Mercedes-Benz W123 Series is one of the brand’s most valued classic platforms, known for its build quality, durability and wide range of versions. This second volume is intended for maintenance, repair and restoration tasks related to bodywork, interior equipment, windows, doors, sliding roof, central locking system, body electrical systems, seats and seat belts.

This digital PDF edition brings together factory documentation for inspection, removal, installation, adjustment, testing and repair of body components and equipment. The content is especially useful for workshops, specialized mechanics, restorers and owners who need to consult original Mercedes-Benz technical procedures applied to the Series 123.

The scope of the manual can be reviewed in greater detail in the Complete index tab, where the included groups and operations are listed according to the original technical structure of the publication.

Main topics covered in this Mercedes-Benz W123 Series manual | Volume 2

  • Electrical equipment and instruments
  • Windows and related mechanisms
  • Interior equipment
  • Doors and mounting components
  • Trunk lid and exterior flaps
  • Sliding roof
  • Central locking system
  • Body electrical system
  • Detachable body components
  • Seats and seat belts
  • Testing, removal, installation, adjustment and repair procedures

W123 Series models listed in the manual documentation

  • 230
  • 240 D, 300 D, 300 CD, 300 TD
  • 300 D Turbo, 300 CD Turbo, 300 TD Turbo
  • 280 E and 280 CE

Other Mercedes-Benz W123 Series models for which this manual is also useful

  • 200 and 200 T
  • 230 E, 230 C, 230 CE, 230 T and 230 TE
  • 250, 250 Lang and 250 T
  • 280, 280 C and 280 TE
  • 200 D, 220 D
  • 240 D Lang and 240 TD
  • 300 D Lang

Important: this manual corresponds to Volume 2 of the factory documentation for Mercedes-Benz Series 123. It is focused on body systems, interior equipment, accessories and vehicle electrical equipment, so it complements Volume 1, which is mainly dedicated to chassis, suspension, axles, brakes and steering. Although the exact application of each procedure should be verified according to chassis number, version and installed equipment, many operations involving bodywork, doors, windows, interior, sliding roof, central locking system and electrical systems are common to different sedan, coupe, estate and long-wheelbase variants of the W123 platform.

Workshop manual intended for maintenance, repair and restoration

The content is designed for technical work on body components and equipment of the W123 Series. It includes illustrations, diagrams, component references, sequential procedures and testing methods that make consultation easier during electrical repairs, interior work, door restoration, window adjustment, lock inspection, sliding roof service or removal of body parts.

This volume is especially useful when the original vehicle configuration needs to be preserved or when solving problems in systems that usually require specific factory information. For a complete restoration of a Mercedes-Benz W123, it helps work more accurately on trim, comfort, safety and functional body elements.

As a digital PDF manual, it can be consulted from a computer, tablet or mobile phone, and also allows the necessary pages to be printed for working on the vehicle without handling original printed documentation.

Item features

  • Format: PDF
  • Language: English
  • Pages: 445
  • File size: 33.2 MB
  • Delivery method: download link

Frequently asked questions about Mercedes-Benz Service Manual Chassis & Body Series 123 | Volume 2

What type of technical information does this W123 Series volume provide?

This volume brings together factory documentation related to bodywork, interior equipment and associated electrical systems. It includes information on electrical equipment and instruments, windows, doors, trunk lid, exterior flaps, sliding roof, central locking system, body electrical system, detachable body components, seats and seat belts.

Does this manual replace Volume 1 of Chassis and Body?

No. This product corresponds to Volume 2 and complements Volume 1. The first volume focuses mainly on chassis, suspension, axles, brakes, steering and general technical data. This second volume is oriented toward bodywork, interior equipment, accessories and body electrical systems.

Is it useful for removing, adjusting or repairing doors, windows and the sliding roof on a Mercedes-Benz W123?

Yes. The manual includes specific groups for windows, doors, trunk lid, exterior flaps and sliding roof. It is a useful reference for removal, installation, adjustment and repair tasks on these components in W123 Series models.

Does it include information on central locking and the body electrical system?

Yes. This volume contains sections dedicated to the central locking system, body electrical system, electrical equipment and instruments. It also includes testing and checking procedures for certain electrical systems and vehicle accessories.

Is it useful for interior work on a Mercedes-Benz W123?

Yes. The manual includes information on interior equipment, detachable body components, seats and seat belts. This makes it especially useful in restorations where interior parts need to be removed, adjusted or reinstalled while preserving the original vehicle configuration.

What should be considered before buying this manual?

This product corresponds to Volume 2 of the chassis and body documentation. It is not a parts catalog, it is not an owner’s manual and it does not replace specific documentation for the engine, transmission or mechanical systems covered by other volumes or manuals. Its main value lies in the original Mercedes-Benz technical procedures for bodywork, interior equipment, accessories and body electrical systems of the Series 123.

Is it useful for sedan, coupe, estate and long-wheelbase versions of the W123 Series?

Yes. Many bodywork, interior, door, window, seat, seat belt and electrical system operations are common to different variants of the W123 platform. When an operation depends on a specific version, year or equipment configuration, the information should be checked by chassis number and vehicle configuration.

Why is it useful to have this Volume 2 together with Volume 1?

Because both manuals complement each other. Volume 1 mainly covers chassis, suspension, brake and steering systems, while Volume 2 completes the documentation with bodywork, interior equipment, doors, windows, sliding roof, central locking system and associated electrical systems. Together, they offer much more complete coverage for maintenance, repair or restoration of a Mercedes-Benz W123.

Mercedes-Benz W123 Chassis and Body Manual | Volume 2 | Index

This index lists the main sections and job numbers included in the Mercedes-Benz Service Manual Chassis & Body Series 123 | Volume 2.

Each entry is listed in accordance with the manual’s original technical layout and numbering.

A Introduction and Group index

  • Introduction
  • Group index

54 Electrical equipment and instruments

  • Battery and grounding points
  • 54-005 Battery test, service and maintenance
  • 54-100 Designation and layout grounding points
  • Instruments
  • 54-250 Removal and installation of instrument cluster
  • 54-251 Removal and installation of indicating instruments
  • 54-253 Removal and installation of tachometer
  • 54-256 Function immersion tube transmitter for fuel gauge
  • 54-257 Testing fuel gauge
  • 54-258 Removal and installation of time clock
  • 54-270 Pressure difference warning system wiring diagram (USA) 1977
  • Switch
  • 54-305 Removal and installation of rotary light switch
  • 54-310 Removal and installation of combination switch
  • 54-312 Testing, refinishing resetting of turnsignal arm
  • 54-320 Removal and installation of rear dome lamp and switch, T-sedan
  • 54-325 Removal and installation of turnsignal lamp and warning flasher switch with relay
  • 54-326 Layout warning flasher relay starting September 1981
  • 54-340 Removal and installation of switch console
  • 54-350 Wiring diagram special version for fog lamp, headlamp flasher, backup lamp
  • 54-390 Renewing bulbs of control system, heater
  • 54-391 Renewing bulb for ashtray light
  • 54-410 Seat belt warning device, ignition key, lamps (USA) starting 1978
  • 54.6 Cruise control, pneumatic
  • 54.6-500 Operation
  • 54.6-505 Checking the actuator
  • 54.6-510 Checking switch, control unit and line harness
  • 54.6-515 Checking switch
  • 54.6-520 Checking sensor
  • 54.6-525 Checking cable control
  • 54.6-530 Checking control unit
  • 54.6-540 Removal and installation of actuator
  • 54.6-545 Removal and installation of switch
  • 54.6-550 Removal and installation of sensor
  • 54.6-555 Removal and installation of cable control
  • 54.6-560 Adjustment of cable control
  • 54.6-565 Removal and installation of control unit
  • 54.6-570 Vacvuum connection for throttle servo unit
  • 54.6-580 Wiring diagram
  • 54.7 Cruise control / Tempomat, electric
  • 54.7-500 Operation
  • 54.7-504 Testing with adapter
  • 54.7-506 Testing coding plug
  • 54.7-541 Removal and installation of actuator
  • 54.7-545 Removal and installation of switch
  • 54.7-550 Removal and installation of sensor on mechanical tachometer
  • 54.7-561 Adjustment of connecting rod
  • 54.7-565 Removal and installation of control unit
  • 54.7-575 Removal and installation of switch on clutch pedal
  • 54.7-577a Removal and installation of relay decel shutoff / cruise control

67 Windows

  • Windshield
  • 67-100 Removal and installation of windshield
  • 67-120 Removal and installation of ornamental frame on windshield
  • Back window
  • 67-200 Removal and installation of back window
  • 67-220 Removal and installation of ornamental frame on back window
  • Side windows
  • 67-400 Remove and install rear quarter window, adjust (coupe)
  • 67-405 Removal and installation of quarter window in loading space (T-sedan)
  • 67-410 Remove and install window lifter for rear crank window (coupe)
  • 67-415 Remove and install electric window lifter at rear quarter window (coupe)

68 Interior equipment

  • Instrument panel
  • 68-100 Removal and installation of instrument panel
  • 68-105 Removal and installation of loudspeaker cover
  • 68-120 Removal and installation of glove compartment lid
  • 68-130 Removal and installation of glove compartment lid lock
  • 68-140 Removal and installation of glove compartment
  • 68-150 Removal and installation of bottom instrument panel cover
  • Center console
  • 68-200 Removal and installation of center console
  • 68-230 Removal and installation of gear shift lever cover
  • Trim
  • 68-400 Removal and installation of reveal molding on top of windshield
  • 68-405 Removal and installation of reveal molding on windshield
  • 68-430 Removal and installation of headliner
  • 68-447 Removal and installation of paneling on rear roof frame (T-sedan)
  • 68-449 Removal and installation of rear pillar trim
  • 68-456 Remove and install rear quarter panel (coupe)
  • 68-458 Removal and installation of hat rack and first aid kit
  • 68-470 Removal and installation of center pillar trim
  • 68-475 Removal and installation of paneling at center pillar rear left (T-sedan)
  • 68-476 Removal and installation of paneling at center pillar rear right (T-sedan)
  • 68-480 Removal and installation of trunk cover
  • 68-490 Install interior padding at bulkhead (after renewal of bulkhead)
  • 68-495 Removal and installation of cover on rear pillar, outside
  • Ornamental strips
  • 68-510 Removal and installation of ornamental rod on edge of front or rear door
  • 68-530 Remove and install cover at weatherstrip (coupe)
  • 68-535 Remove and install ornamental cover at the rear column (coupe)
  • 68-590 Removal and installation of trimstrips in range of entrance
  • Partitions
  • 68-700 Removal and installation of partition between tank and trunk

72 Doors

  • Doors
  • 72-100 Removal and installation of front door liner
  • 72-101 Removal and installation of rear door liner
  • 72-105 Removal and installation of door lining at back door (T-sedan)
  • 72-110 Removal and installation of window regulator
  • 72-140 Removal and installation of arm rest with grip
  • 72-160 Removal and installation of inner sealing rail
  • 72-170 Removal and installation of outer sealing rail
  • 72-180 Removal and installation of front door window lift
  • 72-181 Removal and installation of rear door window lift
  • 72-185 Removal and installation of front door electric window controls
  • 72-187 Removal and installation of rear door electric window controls
  • 72-190 Removal and installation of front door crank operated window
  • 72-191 Removal and installation of rear door crank operated window
  • 72-195 Adjusting front door crank-operated window
  • 72-197 Removal and installation of rear door fixed window
  • 72-198 Removal and installation of flexible window running rail
  • 72-200 Remove and install guide retrainer with guide rail (coupe)
  • 72-210 Removal and installation of door retrainer
  • 72-214 Removal and installation of front door reveal molding
  • 72-220 Removal and installation of front or rear door rubber frame
  • 72-230 Removal and installation of front door inside controls
  • 72-231 Removal and installation of rear door inside controls
  • 72-240 Removal and installation of front door outside grip
  • 72-241 Removal and installation of rear door outside grip
  • 72-250 Removal and installation of front door lock
  • 72-251 Removal and installation of rear door lock
  • 72-255 Removal and installation of door lock on back door (T-sedan)
  • 72-256 Removal of key stuck in snap lock of back door (T-sedan)
  • 72-257 Instalation of modified trigger foot on snap lock of back door (T-sedan)
  • 72-258 Installation of modiffied vacuum element
  • 72-260 Removal and installation of striker
  • 72-270 Removal and installation of exterior rear view mirror
  • 72-350 Removal and installation of back door (T-sedan)
  • 72-351 Adjustment of back door (T-sedan)
  • 72-355 Removal and installation of glass pane on back door (T-sedan)
  • 72-360 Removal and installation of gas pressure spring on back door (T-sedan)

75 Trunk lid and exterior flaps

  • Trunk lid
  • 75-100 Removal and installation of trunk lid
  • 75-102 Removal and installation of trunl lid lock
  • Outside flaps
  • 75-300 Removal and installation of tank flap

77 Sliding roof

  • Sliding roof
  • 77-100 Removal and installation of sun roof lid (electric sun roof)
  • 77-110 Adjusting sun roof lid (electric sun roof)
  • 77-140 Removal and installation of teleflex cable
  • 77-150 Removal and installation of teleflex tube
  • 77-180 Removal and installation of holder with motor and gear
  • 77-190 Troubleshooting instructions for electric sun roof
  • 77-195 Checking and adjusting slip clutch of sun roof motor (round motor)
  • 77-200 Removal and installation of sun roof lid (mechanical sun roof)
  • 77-210 Adjusting sun roof lid (mechanical sun roof)
  • 77-250 Removal and installation of sun roof wind deflector
  • 77-500 Removal and installation of roof railing (T-sedan)

80 Central locking system

  • Functional description
  • 80-010 General
  • 80-020 Design and operation of central interlock
  • Central interlock
  • 80-200 Removal and installation, as well as adjustment of vacuum switch of driver's door
  • 80-210 Removal and installation of vacuum element of front passenger's door
  • 80-220 Removal and installation of vacuum element for rear doors
  • 80-230 Removal and installation of vacuum element of tank filler neck flap
  • 80-240 Removal and installation of vacuum element for trunk lid
  • 80-241 Removal and installation of vacuum element for rear door
  • 80-250 Removal and installation of vacuum supply tank
  • 80-260 Checking central interlock
  • Functional diagrams
  • 80-900 Functional diagram central interlock
  • 80-901 Functional diagram central interlock and air conditioning system
  • 80-902 Functional diagram central and seat backrest locking system with air conditioning system

82 Electrical system of body

  • Lamps
  • 82-052 Removal and installation of lamp unit
  • 82-062 Removal and installation of lamp unit bulbs
  • 82-252 Removal and installation of tail lamp unit
  • 82-348 Removal and installation of licence plate lamp
  • Radio, antenna
  • 82-500 Connection for radio
  • 82-530 Function of automatic antenna (USA) starting 1977
  • Wiping-washing system
  • 82-610 Removal and installation of wiper arm
  • 82-620 Removal and installation of wiper blade
  • 82-625 Removal and installation of wiper blade rubber profile strip
  • 82-630 Removal and installation of wiper linkage
  • 82-680 Removal and installation of wiper motor
  • 82-770 Removal and installation of rear window wiping-washing system, T-sedan
  • 82-780 Wiring diagram rear window wiping-washing system 2nd version
  • Seat heating system
  • 82-800 Operation of seat heating system
  • 82-810 Checking seat heating system
  • 82-820 Removal and installation of pushbutton switch for seat heating system and renewing bulb
  • 82-830 Renewing heating pad of seat heating system

88 Detachable body components

  • Fenders
  • 88-100 Removal and installation of front fender
  • Bumpers
  • 88-200 Removal and installation of front bumper
  • 88-205 Remove and install rubber cover at front bumper
  • 88-220 Removal and installation of rear bumper
  • 88-222 Removal and installation of rubber cover on rear bumper
  • Engine hood
  • 88-300 Removal and installation of engine hood
  • 88-305 Removal and installation of engine hood support
  • 88-306 Removal and installation of engine hood hinge
  • 88-310 Removal and installation of cabler control for engine hood
  • Radiator shell
  • 88-400 Removal and installation of radiator shell
  • 88-401 Removal and installation of radiator grille
  • 88-402 Removal and installation of trim strips to radiator grille
  • 88-405 Removal and installation of Mercedes star
  • 88-410 Removal and installation of air flow grille under front bumper

91 Seats and seat belts

  • Seats
  • 91-100 Removal and installation of front seat (driver's seat)
  • 91-110 Removal and installation of front seat (passenger's seat)
  • 91-112 Construction and operation of the seat back locking system
  • 91-115 Remove and install vacuum element from driver's or co-driver's seat (coupe)
  • 91-117 Remove and install door contact vacuum switch (coupe)
  • 91-119 Remove and install vacuum switch of driver's seat back (coupe)
  • 91-120 Removal and installation of reclining seat fittings
  • 91-150 Check seat back locking system (coupe)
  • 91-162 Function schematic seat back locking system (coupe)
  • 91-165 Removal and insatallation, reconditioning of folding armrest for driver's seat
  • 91-170 Removal and installation of rear seat and rear seat backrest
  • Electrostatic discharge
  • 91-300 Remedy for electrostatic charge on seats
  • Safety belts
  • 91-500 Removal and installation of safety belt
  • 91-550 Exchange instruction for safety belt