300E W124 L6-3.0L M103 (1986): Relays and Modules

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 (124.032) 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), 300TE 4MATIC (124.290) L6-3.0L (103.985) (1991), 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).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

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01Relays and Modules Relays and Modules: Sections
- Relays and Modules - Accessories and Optional Equipment25 pages
  - Alarm Module, (Vehicle Antitheft) › Component Information9 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Antenna Relay › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Ignition Shut Down Relay (For Antitheft) › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
- Relays and Modules - Body and Frame68 pages
  - Head Restraint Relay › Component Information9 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Power Door Lock Control Module › Component Information › Technical Service Bulletins › Locks- Central Locking System Diagnosis
  - Power Seat Control Module › Component Information10 pages
    Locations › With Memory2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Power Seat Relay › Component Information12 pages
    Locations2 3 4
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Seat Heater Control Module › Component Information9 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Seat Heater Relay › Component Information9 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Sunroof / Moonroof Relay › Component Information10 pages
    Technical Service Bulletins › Sunroof - Modifed Drive Unit and Relay2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Sunroof / Moonroof Module › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
- Relays and Modules - Brakes and Traction Control47 pages
  - ABS Main Relay › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Brake Fluid Pump Relay › Component Information10 pages
    Technical Service Bulletins › ABS - Hydraulic Unit/Relays Modified2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Brake Fluid Solenoid Valve Relay › Component Information › Technical Service Bulletins › ABS - Hydraulic Unit/Relays Modified2
  - Electronic Brake Control Module › Component Information19 pages
    Technical Service Bulletins › Policy - Replacement Conditions of ECU After Accident
    Locations › ABS Control Module2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11
    Testing and Inspection › Pinout Values and Diagnostic Parameters2 3 4 5
  - Voltage Protection Relay, ABS › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
- Relays and Modules - Cooling System20 pages
  - Auxiliary Water Pump Relay › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Radiator Cooling Fan Motor Relay › Component Information12 pages
    Locations2 3 4
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
- Relays and Modules - Cruise Control6 pages
  - Cruise Control Module › Component Information5 pages
    Technical Service Bulletins › Cruise Control Inoperative After Amplifier Replacement
    Locations › Cruise Control/Idle Speed Control Unit2
    Service and Repair › Control Unit2
  - Cruise Control Relay › Component Information › Locations
- Relays and Modules - HVAC39 pages
  - Auxiliary Water Pump Relay › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Compressor Clutch Relay › Component Information15 pages
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
    Testing and Inspection › Checking Compressor Clutch Cutout2 3 4 5 6 7
  - Condenser Fan Motor Relay, HVAC › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Control Module HVAC › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
- Relays and Modules - Instrument Panel3 pages
- Relays and Modules - Lighting and Horns10 pages
- Relays and Modules - Power and Ground Distribution › Relay Box › Component Information26 pages
  - Technical Service Bulletins18 pages
    Customer Interest: › 54_048 › Mar › 88 › Component Compartment - Water Intrusion2 3
    All Technical Service Bulletins for Relay Box:9 pages
    DDAF00_00-U-404AU › Apr › 97 › Moisture or Water in Fuse and Relay Box2
    54_068 › Sep › 91 › Fuse & Relay Box - Threaded Sleeve Replacement
    54_048 › Mar › 88 › Component Compartment - Water Intrusion2 3
    62-018 › Mar › 88 › Component Compartment Cover - Water Leaks2 3
    All Other Service Bulletins for Relay Box:6 pages
    DDAF00_00-U-404AU › Apr › 97 › Moisture or Water in Fuse and Relay Box2
    54_068 › Sep › 91 › Fuse & Relay Box - Threaded Sleeve Replacement
    62-018 › Mar › 88 › Component Compartment Cover - Water Leaks2 3
  - Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
- Relays and Modules - Powertrain Management56 pages
  - Relays and Modules - Computers and Control Systems24 pages
    Body Control Module › Component Information › Locations
    Electronic Throttle Control Module › Component Information › Technical Service Bulletins › Battery Discharges After Extended Parking Time
    Engine Control Module › Component Information18 pages
    Technical Service Bulletins › Policy - Replacement Conditions of ECU After Accident
    Locations › Electronic Ignition Control Unit (EZL)2 3 4 5
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9
    Testing and Inspection › Pinout Values and Diagnostic Parameters2 3
    Overvoltage Protection Relay › Component Information › Technical Service Bulletins › Overvoltage Relay/Harness - Update2 3 4
  - Relays and Modules - Emission Control Systems › Air Injection Pump Relay › Component Information › Locations2 3 4
  - Relays and Modules - Fuel Delivery and Air Induction11 pages
    Altitude Compensator Relay › Component Information › Locations
    Fuel Pump Relay › Component Information10 pages
    Technical Service Bulletins › Fuel Pump Relay - Production Changes2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Relays and Modules - Ignition System17 pages
    Ignition Control Module › Component Information9 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
    Ignition Shut Down Relay (For Antitheft) › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
- Relays and Modules - Restraint Systems13 pages
  - Air Bag Control Module › Component Information10 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9
  - Seat Belt Control Module › Component Information › Description and Operation2 3
- Relays and Modules - Starting and Charging › System Information › Technical Service Bulletins › Electrical - Electrostatic Discharge Damage Prevention
- Relays and Modules - Steering and Suspension › System Information › Technical Service Bulletins › Electrical - Electrostatic Discharge Damage Prevention
- Relays and Modules - Transmission and Drivetrain2 pages
  - Relays and Modules - Differential › Control Unit, Differential Lock › Component Information › Locations
  - Relays and Modules - Transfer Case › Control Module, Transfer Case › Component Information › Locations
- Relays and Modules - Windows and Glass12 pages
  - Power Window Control Module › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Power Window Relay › Component Information › Locations2 3 4
- Relays and Modules - Wiper and Washer Systems29 pages
  - Headlamp Washer Motor Relay › Component Information12 pages
    Locations2 3 4
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Headlamp Wiper Relay › Component Information › Technical Service Bulletins › Headlamp Wiper - New Relay Fixes Parking Problem
  - Windshield Washer Relay › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Wiper Relay › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
05Powertrain Management Powertrain Management: Sections
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections