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Wiring Diagrams Mercedes-Benz C-class W203/S203/CL203 (2000-2004)

33 systems 75 wiring diagrams 1065 components
Contents — 33 systems, 75 diagrams
Air conditioning
Anti-lock brakes
Anti-theft
Body control modules
Computer data lines
Cooling fan
Cruise control
Defoggers
Engine performance 2.3l
Engine performance 2.6l
Engine performance 3.2l
Exterior lights
Ground distribution
Headlights
Horn
Instrument cluster
Interior lights
Memory systems
Passive restraints
Power distribution
Power door locks
Power mirrors
Power seats
Power top/sunroof
Power windows
Radio
Shift interlock
Starting/charging
Supplemental restraints
Transmission
Trunk, tailgate, fuel door
Warning systems
Wiper/washer

Air conditioning

# Automatic a/c circuit

Air conditioning — Automatic a/c circuit — Automatic a/c circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
Components on the diagram

    Anti-lock brakes

    # Anti-lock brakes circuit

    Anti-lock brakes — Anti-lock brakes circuit — Anti-lock brakes circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
    Components on the diagram

      # Brake assist circuit

      Anti-lock brakes — Brake assist circuit — Brake assist circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
      Components on the diagram

        Anti-theft

        # Anti-theft circuit

        # Anti-theft circuit (1 of 2)

        Anti-theft — Anti-theft circuit — Anti-theft circuit (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
        Components on the diagram

          # Anti-theft circuit (2 of 2)

          Anti-theft — Anti-theft circuit — Anti-theft circuit (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
          Components on the diagram

            Body control modules

            # Front sam control module circuit

            # Front sam control module circuit (1 of 3)

            Body control modules — Front sam control module circuit — Front sam control module circuit (1 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
            Components on the diagram

              # Front sam control module circuit (2 of 3)

              Body control modules — Front sam control module circuit — Front sam control module circuit (2 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
              Components on the diagram

                # Front sam control module circuit (3 of 3)

                Body control modules — Front sam control module circuit — Front sam control module circuit (3 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                Components on the diagram

                  # Rear sam control module circuit

                  # Rear sam control module circuit (1 of 2)

                  Body control modules — Rear sam control module circuit — Rear sam control module circuit (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                  Components on the diagram

                    # Rear sam control module circuit (2 of 2)

                    Body control modules — Rear sam control module circuit — Rear sam control module circuit (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                    Components on the diagram

                      Computer data lines

                      # High/low bus circuit

                      # High/low bus circuit (1 of 2)

                      Computer data lines — High/low bus circuit — High/low bus circuit (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                      Components on the diagram

                        # High/low bus circuit (2 of 2)

                        Computer data lines — High/low bus circuit — High/low bus circuit (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                        Components on the diagram

                          Cooling fan

                          # Cooling fan circuit

                          Cooling fan — Cooling fan circuit — Cooling fan circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                          Components on the diagram

                            Cruise control

                            # Cruise control circuit

                            Cruise control — Cruise control circuit — Cruise control circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                            Components on the diagram

                              # Cruise control circuit, late production

                              Cruise control — Cruise control circuit, late production — Cruise control circuit, late production. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                              Components on the diagram

                                Defoggers

                                # Heated mirrors circuit

                                Defoggers — Heated mirrors circuit — Heated mirrors circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                Components on the diagram

                                  # Rear defogger circuit

                                  Defoggers — Rear defogger circuit — Rear defogger circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                  Components on the diagram

                                    Engine performance 2.3l

                                    # Wiring diagram engine performance 2.3l

                                    # Wiring diagram engine performance 2.3l (1 of 3)

                                    Engine performance 2.3l — Wiring diagram engine performance 2.3l — Wiring diagram engine performance 2.3l (1 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                    Components on the diagram

                                      # Wiring diagram engine performance 2.3l (2 of 3)

                                      Engine performance 2.3l — Wiring diagram engine performance 2.3l — Wiring diagram engine performance 2.3l (2 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                      Components on the diagram

                                        # Wiring diagram engine performance 2.3l (3 of 3)

                                        Engine performance 2.3l — Wiring diagram engine performance 2.3l — Wiring diagram engine performance 2.3l (3 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                        Components on the diagram

                                          Engine performance 2.6l

                                          # Wiring diagram engine performance 2.6l

                                          # Wiring diagram engine performance 2.6l (1 of 3)

                                          Engine performance 2.6l — Wiring diagram engine performance 2.6l — Wiring diagram engine performance 2.6l (1 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                          Components on the diagram

                                            # Wiring diagram engine performance 2.6l (2 of 3)

                                            Engine performance 2.6l — Wiring diagram engine performance 2.6l — Wiring diagram engine performance 2.6l (2 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                            Components on the diagram

                                              # Wiring diagram engine performance 2.6l (3 of 3)

                                              Engine performance 2.6l — Wiring diagram engine performance 2.6l — Wiring diagram engine performance 2.6l (3 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                              Components on the diagram

                                                Engine performance 3.2l

                                                # Wiring diagram engine performance 3.2l

                                                # Wiring diagram engine performance 3.2l (1 of 3)

                                                Engine performance 3.2l — Wiring diagram engine performance 3.2l — Wiring diagram engine performance 3.2l (1 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                Components on the diagram

                                                  # Wiring diagram engine performance 3.2l (2 of 3)

                                                  Engine performance 3.2l — Wiring diagram engine performance 3.2l — Wiring diagram engine performance 3.2l (2 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                  Components on the diagram

                                                    # Wiring diagram engine performance 3.2l (3 of 3)

                                                    Engine performance 3.2l — Wiring diagram engine performance 3.2l — Wiring diagram engine performance 3.2l (3 of 3). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                    Components on the diagram

                                                      Exterior lights

                                                      # Backup lamps circuit

                                                      Exterior lights — Backup lamps circuit — Backup lamps circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                      Components on the diagram

                                                        # Exterior lamps circuit

                                                        # Exterior lamps circuit (1 of 2)

                                                        Exterior lights — Exterior lamps circuit — Exterior lamps circuit (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                        Components on the diagram

                                                          # Exterior lamps circuit (2 of 2)

                                                          Exterior lights — Exterior lamps circuit — Exterior lamps circuit (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                          Components on the diagram

                                                            Ground distribution

                                                            # Ground distribution circuit

                                                            Ground distribution — Ground distribution circuit — Ground distribution circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                            Components on the diagram

                                                              Headlights

                                                              # Headlights circuit, with xenon lamps

                                                              Headlights — Headlights circuit, with xenon lamps — Headlights circuit, with xenon lamps. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                              Components on the diagram

                                                                # Headlights circuit, without xenon lamps

                                                                Headlights — Headlights circuit, without xenon lamps — Headlights circuit, without xenon lamps. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                Components on the diagram

                                                                  Horn

                                                                  # Horn circuit

                                                                  Horn — Horn circuit — Horn circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                  Components on the diagram

                                                                    Instrument cluster

                                                                    # Instrument cluster circuit

                                                                    Instrument cluster — Instrument cluster circuit — Instrument cluster circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                    Components on the diagram

                                                                      Interior lights

                                                                      # Courtesy lamps circuit

                                                                      Interior lights — Courtesy lamps circuit — Courtesy lamps circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                      Components on the diagram

                                                                        # Instrument illumination circuit

                                                                        Interior lights — Instrument illumination circuit — Instrument illumination circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                        Components on the diagram

                                                                          Memory systems

                                                                          # Driver"s memory seat circuit

                                                                          Memory systems — Driver"s memory seat circuit — Driver"s memory seat circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                          Components on the diagram

                                                                            # Memory mirrors circuit

                                                                            Memory systems — Memory mirrors circuit — Memory mirrors circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                            Components on the diagram

                                                                              # Passenger"s memory seat circuit

                                                                              Memory systems — Passenger"s memory seat circuit — Passenger"s memory seat circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                              Components on the diagram

                                                                                # Steering column memory circuit

                                                                                Memory systems — Steering column memory circuit — Steering column memory circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                Components on the diagram

                                                                                  # Steering column memory circuit, late production

                                                                                  Memory systems — Steering column memory circuit, late production — Steering column memory circuit, late production. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                  Components on the diagram

                                                                                    Passive restraints

                                                                                    # Passive restraints circuit

                                                                                    Passive restraints — Passive restraints circuit — Passive restraints circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                    Components on the diagram

                                                                                      Power distribution

                                                                                      # Power distribution circuit

                                                                                      Power distribution — Power distribution circuit — Power distribution circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                      Components on the diagram

                                                                                        Power door locks

                                                                                        # Power door locks circuit

                                                                                        # Power door locks circuit (1 of 2)

                                                                                        Power door locks — Power door locks circuit — Power door locks circuit (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                        Components on the diagram

                                                                                          # Power door locks circuit (2 of 2)

                                                                                          Power door locks — Power door locks circuit — Power door locks circuit (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                          Components on the diagram

                                                                                            Power mirrors

                                                                                            # Electrochromic mirror circuit

                                                                                            Power mirrors — Electrochromic mirror circuit — Electrochromic mirror circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                            Components on the diagram

                                                                                              # Power mirror circuit

                                                                                              Power mirrors — Power mirror circuit — Power mirror circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                              Components on the diagram

                                                                                                Power seats

                                                                                                # Heated seats circuit

                                                                                                Power seats — Heated seats circuit — Heated seats circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                Components on the diagram

                                                                                                  # Power seats circuit

                                                                                                  Power seats — Power seats circuit — Power seats circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                  Components on the diagram

                                                                                                    Power top/sunroof

                                                                                                    # Power top/sunroof circuit

                                                                                                    Power top/sunroof — Power top/sunroof circuit — Power top/sunroof circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                    Components on the diagram

                                                                                                      Power windows

                                                                                                      # Power windows circuit

                                                                                                      Power windows — Power windows circuit — Power windows circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                      Components on the diagram

                                                                                                        # Rear window sun shade circuit

                                                                                                        Power windows — Rear window sun shade circuit — Rear window sun shade circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                        Components on the diagram

                                                                                                          Radio

                                                                                                          # Comand actuation circuit, sedan

                                                                                                          # Comand actuation circuit, sedan (1 of 2)

                                                                                                          Radio — Comand actuation circuit, sedan — Comand actuation circuit, sedan (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                          Components on the diagram

                                                                                                            # Comand actuation circuit, sedan (2 of 2)

                                                                                                            Radio — Comand actuation circuit, sedan — Comand actuation circuit, sedan (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                            Components on the diagram

                                                                                                              # Comand actuation circuit, wagon

                                                                                                              # Comand actuation circuit, wagon (1 of 2)

                                                                                                              Radio — Comand actuation circuit, wagon — Comand actuation circuit, wagon (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                              Components on the diagram

                                                                                                                # Comand actuation circuit, wagon (2 of 2)

                                                                                                                Radio — Comand actuation circuit, wagon — Comand actuation circuit, wagon (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                Components on the diagram

                                                                                                                  # Radio circuit, sedan with amplifier

                                                                                                                  # Radio circuit, sedan with amplifier (1 of 2)

                                                                                                                  Radio — Radio circuit, sedan with amplifier — Radio circuit, sedan with amplifier (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                  Components on the diagram

                                                                                                                    # Radio circuit, sedan with amplifier (2 of 2)

                                                                                                                    Radio — Radio circuit, sedan with amplifier — Radio circuit, sedan with amplifier (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                    Components on the diagram

                                                                                                                      # Radio circuit, sedan without amplifier

                                                                                                                      Radio — Radio circuit, sedan without amplifier — Radio circuit, sedan without amplifier. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                      Components on the diagram

                                                                                                                        # Radio circuit, wagon with amplifier

                                                                                                                        # Radio circuit, wagon with amplifier (1 of 2)

                                                                                                                        Radio — Radio circuit, wagon with amplifier — Radio circuit, wagon with amplifier (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                        Components on the diagram

                                                                                                                          # Radio circuit, wagon with amplifier (2 of 2)

                                                                                                                          Radio — Radio circuit, wagon with amplifier — Radio circuit, wagon with amplifier (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                          Components on the diagram

                                                                                                                            # Radio circuit, wagon without amplifier

                                                                                                                            Radio — Radio circuit, wagon without amplifier — Radio circuit, wagon without amplifier. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                            Components on the diagram

                                                                                                                              Shift interlock

                                                                                                                              # Shift interlock circuit

                                                                                                                              Shift interlock — Shift interlock circuit — Shift interlock circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                              Components on the diagram

                                                                                                                                Starting/charging

                                                                                                                                # Charging circuit

                                                                                                                                Starting/charging — Charging circuit — Charging circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                Components on the diagram

                                                                                                                                  # Starting circuit

                                                                                                                                  Starting/charging — Starting circuit — Starting circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                  Components on the diagram

                                                                                                                                    Supplemental restraints

                                                                                                                                    # Supplemental restraints circuit

                                                                                                                                    # Supplemental restraints circuit (1 of 2)

                                                                                                                                    Supplemental restraints — Supplemental restraints circuit — Supplemental restraints circuit (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                    Components on the diagram

                                                                                                                                      # Supplemental restraints circuit (2 of 2)

                                                                                                                                      Supplemental restraints — Supplemental restraints circuit — Supplemental restraints circuit (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                      Components on the diagram

                                                                                                                                        Transmission

                                                                                                                                        # A/t circuit

                                                                                                                                        Transmission — A/t circuit — A/t circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                        Components on the diagram

                                                                                                                                          Trunk, tailgate, fuel door

                                                                                                                                          # Trunk, tailgate, fuel door circuit

                                                                                                                                          Trunk, tailgate, fuel door — Trunk, tailgate, fuel door circuit — Trunk, tailgate, fuel door circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                          Components on the diagram

                                                                                                                                            Warning systems

                                                                                                                                            # Warning systems circuit

                                                                                                                                            Warning systems — Warning systems circuit — Warning systems circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                            Components on the diagram

                                                                                                                                              Wiper/washer

                                                                                                                                              # Headlamp washer circuit

                                                                                                                                              Wiper/washer — Headlamp washer circuit — Headlamp washer circuit. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                              Components on the diagram

                                                                                                                                                # Wiper/washer circuit, sedan

                                                                                                                                                Wiper/washer — Wiper/washer circuit, sedan — Wiper/washer circuit, sedan. Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                                Components on the diagram

                                                                                                                                                  # Wiper/washer circuit, wagon

                                                                                                                                                  # Wiper/washer circuit, wagon (1 of 2)

                                                                                                                                                  Wiper/washer — Wiper/washer circuit, wagon — Wiper/washer circuit, wagon (1 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                                  Components on the diagram

                                                                                                                                                    # Wiper/washer circuit, wagon (2 of 2)

                                                                                                                                                    Wiper/washer — Wiper/washer circuit, wagon — Wiper/washer circuit, wagon (2 of 2). Mercedes-Benz C-class W203/S203/CL203 (2000-2004)
                                                                                                                                                    Components on the diagram