300TE 4MATIC W124 L6-3.0L M103 (1991): Heating and Air Conditioning

Also for this vehicle: 300CD (123.153) L5-3.0L DSL Turbo (617.952) (1982), 300CE (124.050) L6-3.0L (103.983) (1989), 300CE (124.051) L6-3.0L (104.980) (1990), 300CE (124.052) L6-3.2L (104.992) (1993), 300D (123.133) L5-3.0L DSL Turbo (617.952) (1984), 300D (124.128) L5-2.5L DSL Turbo (602.962) (1991), 300D (124.133) L6-3.0L DSL Turbo (603.960) (1987), 300E (124.026) L6-2.6L (103.940) (1990), 300E (124.030) L6-3.0L (103.983) (1986), 300E (124.032) L6-3.2L (104.992) (1993), 300E 4MATIC (124.230) L6-3.0L (103.985) (1990), 300SD (126.120) L5-3.0L DSL Turbo (617.951) (1982), 300SD (140.134) L6-3.5L DSL Turbo (603.971) (1993), 300SDL (126.125) L6-3.0L DSL Turbo (603.961) (1987), 300SE (126.024) L6-3.0L (103.981) (1989), 300SE (140.032) L6-3.2L (104.990) (1992), 300SEL (126.025) L6-3.0L (103.981) (1988), 300SL (129.061) L6-3.0L (104.981) (1991), 300TD (123.193) L5-3.0L DSL Turbo (617.952) (1984), 300TE (124.090) L6-3.0L (103.983) (1989), 350SDL (126.135) L6-3.5L DSL Turbo (603.970) (1990), 380SEC (126.043) V8-3.8L (116.963) (1982), 380SL (107.045) V8-3.8L (116.960) (1982).

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

1. 01Relays and ModulesRelays and Modules: Sections
2. 02Sensors and SwitchesSensors and Switches: Sections
3. 03MaintenanceMaintenance: Sections
4. 04Engine, Cooling and ExhaustEngine, Cooling and Exhaust: Sections
5. 05Powertrain ManagementPowertrain Management: Sections
6. 06Transmission and DrivetrainTransmission and Drivetrain: Sections
7. 07Brakes and Traction ControlBrakes and Traction Control: Sections
8. 08Starting and ChargingStarting and Charging: Sections
9. 09Power and Ground DistributionPower and Ground Distribution: Sections
10. 10Steering and SuspensionSteering and Suspension: Sections
11. 11Heating and Air ConditioningHeating and Air Conditioning: Sections
    • Air Door, HVAC13 pages

      • Air Door Actuator / Motor, HVAC › Component Information10 pages

        • Locations › Vacuum Element For Center Nozzle Flap2345
        • Service and Repair › Center Outlets2345
      • Air Door Vacuum Solenoid Valve, HVAC › Component Information › Locations23
    • Ambient Temperature Sensor / Switch HVAC › Component Information › Technical Service Bulletins › Outside Temperature Display Intermittently Inoperative2
    • Aspirator, HVAC › Component Information › Locations23
    • Auxiliary Water Pump Relay › Component Information › Diagrams › Diagram Information and Instructions2345678
    • Blower Motor › Component Information19 pages

      • Technical Service Bulletins › A/C - Blower Motor Warranty Returns23
      • Locations › Blower Motor2
      • Diagrams › Diagram Information and Instructions2345678
      • Description and Operation › Blower2
      • Service and Repair › Remove/Install Blower Motor234
    • Blower Motor Resistor › Component Information9 pages

      • Locations
      • Diagrams › Diagram Information and Instructions2345678
    • Cabin Air Filter › Component Information5 pages

      • Locations2
      • Service and Repair › Replacement Interval23
    • Cabin Temperature Sensor / Switch › Component Information › Specifications234
    • Cabin Ventilation Duct › Component Information › Locations
    • Compressor HVAC › Compressor Clutch › Component Information28 pages

      • Technical Service Bulletins › A/C - Remanufactured Compressors/Clutches Availability2345678910111213141516
      • Specifications › Clearance Specifications2
      • Locations › A/C Compressor Control Unit2
      • Diagrams › Diagram Information and Instructions2345678
    • Compressor Clutch Relay › Component Information › Diagrams › Diagram Information and Instructions2345678
    • Compressor Speed Sensor, HVAC › Component Information › Locations2
    • Condenser HVAC › Component Information › Locations234
    • Condenser Fan › Component Information10 pages

      • Locations
      • Diagrams › Diagram Information and Instructions23456789
    • Condenser Fan Motor Relay, HVAC › Component Information › Diagrams › Diagram Information and Instructions2345678
    • Condenser Fan Resistor › Component Information › Diagrams › Diagram Information and Instructions2345678
    • Control Assembly, HVAC › Component Information10 pages

      • Technical Service Bulletins › Interior - Interior Damage From Scent Dispensers2
      • Diagrams › Diagram Information and Instructions2345678
    • Control Module HVAC › Component Information › Diagrams › Diagram Information and Instructions2345678
    • Evaporator Case › Component Information › Service and Repair234
    • Evaporator Core › Component Information › Technical Service Bulletins › Noise When A/C Compressor Switches ON
    • Evaporator Drain Tube › Component Information › Testing and Inspection
    • Evaporator Temperature Sensor / Switch › Component Information › Description and Operation2
    • Expansion Valve › Component Information › Specifications23
    • Heater Control Valve › Component Information › Locations2345
    • Heater Core › Component Information › Technical Service Bulletins10 pages

      • Customer Interest: › 83245 › Aug › 90 › Heating System - Air Separator Installation234
      • All Technical Service Bulletins for Heater Core:5 pages

        • DDAF83_20-U-4040AU › Feb › 97 › Odors From ACC System in Heating Mode
        • 83245 › Aug › 90 › Heating System - Air Separator Installation234
      • All Other Service Bulletins for Heater Core: › DDAF83_20-U-4040AU › Feb › 97 › Odors From ACC System in Heating Mode
    • Heater Core Temperature Sensor / Switch › Component Information › Specifications234
    • Hose/Line HVAC › Component Information › Specifications
    • Receiver Dryer › Component Information › Specifications23
    • Refrigerant › Component Information62 pages

      • Technical Service Bulletins60 pages

        • Customer Interest: › S-83_55-118 › Mar › 09 › A/C - No Or Low A/C Cooling Performance23456
        • All Technical Service Bulletins for Refrigerant:30 pages

          • S-83_55-118 › Mar › 09 › A/C - No Or Low A/C Cooling Performance23456
          • P-83_00-97A › Sep › 07 › A/C - Fluorescent Dye Leak Testing
          • 82_083 › Oct › 96 › A/C System - R134A Conversion2345678
          • 83_081A › Aug › 94 › A/C - R12 to R134a Conversion234567
          • 00_053 › Oct › 93 › Maintenance - Factory Approved Service Products2345
          • 58_060 › Feb › 93 › A/C - Updated Leak Detector for R12 and R134a
          • 83_049 › Feb › 93 › A/C - Bear R12/R134a Leak Detector Modified
          • 83_037 › Jul › 91 › A/C - Warning Against Refrigerant Alaskankool R176
        • All Other Service Bulletins for Refrigerant:24 pages

          • P-83_00-97A › Sep › 07 › A/C - Fluorescent Dye Leak Testing
          • 82_083 › Oct › 96 › A/C System - R134A Conversion2345678
          • 83_081A › Aug › 94 › A/C - R12 to R134a Conversion234567
          • 00_053 › Oct › 93 › Maintenance - Factory Approved Service Products2345
          • 58_060 › Feb › 93 › A/C - Updated Leak Detector for R12 and R134a
          • 83_049 › Feb › 93 › A/C - Bear R12/R134a Leak Detector Modified
          • 83_037 › Jul › 91 › A/C - Warning Against Refrigerant Alaskankool R176
      • Specifications › Capacity Specifications2
    • Refrigerant Oil › Component Information14 pages

      • Technical Service Bulletins12 pages

        • All Technical Service Bulletins for Refrigerant Oil: › S-83_55-118 › Mar › 09 › A/C - No Or Low A/C Cooling Performance23456
        • Customer Interest for Refrigerant Oil: › S-83_55-118 › Mar › 09 › A/C - No Or Low A/C Cooling Performance23456
      • Specifications › Capacity Specifications2
    • Refrigerant Pressure Sensor / Switch, HVAC › Component Information › Testing and Inspection2
    • Relays and Modules - HVAC32 pages

      • Auxiliary Water Pump Relay › Component Information › Diagrams › Diagram Information and Instructions2345678
      • Compressor Clutch Relay › Component Information › Diagrams › Diagram Information and Instructions2345678
      • Condenser Fan Motor Relay, HVAC › Component Information › Diagrams › Diagram Information and Instructions2345678
      • Control Module HVAC › Component Information › Diagrams › Diagram Information and Instructions2345678
    • Sensors and Switches - HVAC19 pages

      • Air Door Position Sensor / Switch, HVAC › Component Information › Specifications
      • Ambient Temperature Sensor / Switch HVAC › Component Information › Technical Service Bulletins › Outside Temperature Display Intermittently Inoperative2
      • Cabin Temperature Sensor / Switch › Component Information › Specifications234
      • Compressor Speed Sensor, HVAC › Component Information › Locations2
      • Evaporator Temperature Sensor / Switch › Component Information › Description and Operation2
      • Heater Core Temperature Sensor / Switch › Component Information › Specifications234
      • Refrigerant Pressure Sensor / Switch, HVAC › Component Information › Testing and Inspection2
      • Ventilation Switch › Component Information › Testing and Inspection2
    • Service Port HVAC › Component Information › Locations
    • Vacuum Reservoir HVAC › Component Information › Locations2
    • Ventilation Switch › Component Information › Testing and Inspection2
    • Wiring Harness HVAC › Component Information › Diagrams › Diagram Information and Instructions2345678
12. 12Restraint SystemsRestraint Systems: Sections
13. 13Accessories and Optional EquipmentAccessories and Optional Equipment: Sections
14. 14Body and FrameBody and Frame: Sections
15. 15Cruise ControlCruise Control: Sections
16. 16Instrument Panel, Gauges and Warning IndicatorsInstrument Panel, Gauges and Warning Indicators: Sections
17. 17Lighting and HornsLighting and Horns: Sections
18. 18Windows and GlassWindows and Glass: Sections
19. 19Wiper and Washer SystemsWiper and Washer Systems: Sections