300D W124 L6-3.0L DSL Turbo OM603 (1987): Powertrain Management

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), 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), 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

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

01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
05Powertrain Management Powertrain Management: Sections
- Relays and Modules - Powertrain Management50 pages
  - Relays and Modules - Computers and Control Systems18 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 Information12 pages
    Locations › Electronic Ignition Control Unit (EZL)2 3 4
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
    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 Induction › Fuel Pump Relay › Component Information › Technical Service Bulletins › A/T - No 2-3 Upshift at Full Throttle/Engine Cutout
  - Relays and Modules - Glow Plug System19 pages
    Glow Plug Control Module › Component Information › Technical Service Bulletins › ABS - Preglow System Modification Fixes ABS Light2 3 4 5
    Glow Plug Relay › Component Information14 pages
    Technical Service Bulletins › Battery Discharges for No Apparent Reason2 3 4 5 6
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Relays and Modules - Ignition System › Ignition Shut Down Relay (For Antitheft) › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
- Sensors and Switches - Powertrain Management38 pages
  - Sensors and Switches - Computers and Control Systems22 pages
    Accelerator Pedal Position Sensor › Component Information › Locations
    Air Flow Meter/Sensor › Component Information › Locations › Air Flow Sensor W/Intake Air Temperature Sensor (EDS)2
    Altitude Correction Sensor <--> [Barometric Pressure Sensor] › Component Information › Technical Service Bulletins › Engine Performs Poorly
    Crankshaft Position Sensor › Component Information › Locations2 3
    Engine Speed Sensor › Component Information › Description and Operation
    Intake Air Temperature Sensor › Component Information › Testing and Inspection
    Oxygen Sensor › Component Information › Locations
    Throttle Full Open Switch › Component Information › Locations2
    Throttle Position Sensor › Component Information › Technical Service Bulletins6 pages
    Customer Interest for Throttle Position Sensor: › 07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
    All Technical Service Bulletins for Throttle Position Sensor: › 07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
    Vehicle Speed Sensor › Component Information › Locations2 3 4
  - Sensors and Switches - Fuel Delivery and Air Induction11 pages
    Accelerator Pedal Position Sensor › Component Information › Locations
    Air Flow Meter/Sensor › Component Information › Locations › Air Flow Sensor W/Intake Air Temperature Sensor (EDS)2
    Throttle Full Open Switch › Component Information › Locations2
    Throttle Position Sensor › Component Information › Technical Service Bulletins6 pages
    All Technical Service Bulletins for Throttle Position Sensor: › 07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
    Customer Interest for Throttle Position Sensor: › 07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
  - Sensors and Switches - Ignition System5 pages
    Crankshaft Position Sensor › Component Information › Locations2 3
    Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Service and Repair2
- Tune-up and Engine Performance Checks26 pages
  - Fuel Pressure › System Information › System Diagnosis
  - Idle Speed › System Information3 pages
    Technical Service Bulletins › Engine Surges Following Cold Start2
    System Diagnosis › Electronic Idle Speed Control Test
  - Air Cleaner Housing › Air Filter Element › Component Information › Service and Repair
  - Fuel Filter › Component Information3 pages
    Technical Service Bulletins › Cuts Out When Pushing Clutch, Won't Idle
    Service and Repair › Replacing Fuel Filter2
  - Firing Order › Component Information › Specifications2
  - Spark Plug › Component Information › Tools and Equipment
  - Compression Check › System Information13 pages
    Technical Service Bulletins › Engine - Compression Recorder Tool2 3 4 5 6
    Specifications › Conversion Tables2 3 4 5 6 7
  - Valve Clearance › System Information › Specifications2
- Computers and Control Systems101 pages
- Emission Control Systems46 pages
  - Air Injection5 pages
    Air Injection Control Valve › Component Information › Locations
    Air Injection Pump Relay › Component Information › Locations2 3 4
  - Catalytic Converter › Component Information › Technical Service Bulletins8 pages
    Recalls for Catalytic Converter: › CMP96_1121 › Feb › 97 › Campaign - Oxidation Catalyst Replaces Trap Oxidizer2 3 4
    All Technical Service Bulletins for Catalytic Converter: › CMP96_1121 › Feb › 97 › Campaign - Oxidation Catalyst Replaces Trap Oxidizer2 3 4
  - Continuous Trap Oxidizer, Diesel Emissions › Component Information › Technical Service Bulletins16 pages
    All Technical Service Bulletins for Continuous Trap Oxidizer:8 pages
    CMP96_1121 › Feb › 97 › Campaign - Oxidation Catalyst Replaces Trap Oxidizer2 3 4
    14_005 › Aug › 90 › Emissions - Trap Oxidizer, New Mounting Bracket
    00_030 › Sep › 87 › Emission Systems - Service Guidelines2 3
    Recalls: › CMP96_1121 › Feb › 97 › Campaign - Oxidation Catalyst Replaces Trap Oxidizer2 3 4
    All Other Service Bulletins for Continuous Trap Oxidizer:4 pages
    14_005 › Aug › 90 › Emissions - Trap Oxidizer, New Mounting Bracket
    00_030 › Sep › 87 › Emission Systems - Service Guidelines2 3
  - Evaporative Emissions System › Canister Purge Control Valve › Component Information3 pages
    Locations
    Description and Operation › GF47.30-P-4030-02KE Purge Control Valve Function2
  - Exhaust Gas Recirculation9 pages
    EGR Backpressure Transducer › Component Information4 pages
    Technical Service Bulletins › EGR - Vacuum Transducer, One Vent Line2
    Testing and Inspection › Vacuum Transducer2
    EGR Switch-Over Valve <--> [EGR Control Solenoid] › Component Information › Locations
    EGR Valve › Component Information4 pages
    Technical Service Bulletins › EGR Valve Noisy
    Diagrams › Federal2 3
  - Positive Crankcase Ventilation › Component Information › Description and Operation
  - Relays and Modules - Emission Control Systems › Air Injection Pump Relay › Component Information › Locations2 3 4
- Fuel Delivery and Air Induction109 pages
  - Fuel Pressure › System Information › System Diagnosis
  - Idle Speed › System Information3 pages
    Technical Service Bulletins › Engine Surges Following Cold Start2
    System Diagnosis › Electronic Idle Speed Control Test
  - Accelerator Pedal Position Sensor › Component Information › Locations
  - Air Cleaner Housing › Air Filter Element › Component Information › Service and Repair
  - Air Flow Meter/Sensor › Component Information › Locations › Air Flow Sensor W/Intake Air Temperature Sensor (EDS)2
  - Altitude Compensator › Component Information › Technical Service Bulletins4 pages
    Customer Interest for Altitude Compensator: › 07.1_019 › Mar › 93 › Fuel - Aneroid Compensator (ALDA), Modified2
    All Technical Service Bulletins for Altitude Compensator: › 07.1_019 › Mar › 93 › Fuel - Aneroid Compensator (ALDA), Modified2
  - Diesel MFI Pump › Vacuum Unit (Stop Unit) <--> [Fuel Cut Solenoid, Diesel] › Component Information2 pages
    Diagrams
    Testing and Inspection › Testing Vacuum Engine Stop For Leaks
  - Fuel › Component Information › Technical Service Bulletins16 pages
    All Technical Service Bulletins for Fuel:8 pages
    S-47_20-48B › Feb › 09 › Diesel Engine - MIL ON/Hard Start/Stall In Cold Temps.2
    00-055 › Jun › 94 › Fuel - Low Sulfur Diesel
    00_053 › Oct › 93 › Maintenance - Factory Approved Service Products2 3 4 5
    Customer Interest: › S-47_20-48B › Feb › 09 › Diesel Engine - MIL ON/Hard Start/Stall In Cold Temps.2
    All Other Service Bulletins for Fuel:6 pages
    00-055 › Jun › 94 › Fuel - Low Sulfur Diesel
    00_053 › Oct › 93 › Maintenance - Factory Approved Service Products2 3 4 5
  - Fuel Distributor › Component Information › Technical Service Bulletins10 pages
    Customer Interest: › 07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
    All Technical Service Bulletins for Fuel Distributor:5 pages
    07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
    07_1-014 › Mar › 87 › Fuel Rack Position Sensor - Cover Installation2
    All Other Service Bulletins for Fuel Distributor: › 07_1-014 › Mar › 87 › Fuel Rack Position Sensor - Cover Installation2
  - Fuel Filter › Component Information3 pages
    Technical Service Bulletins › Cuts Out When Pushing Clutch, Won't Idle
    Service and Repair › Replacing Fuel Filter2
  - Fuel Heater › Component Information › Description and Operation
  - Fuel Injector › Fuel Injector Line › Component Information › Technical Service Bulletins › Injection Lines Leak (Cyl. 1 thru 4) Due To Vibration
  - Fuel Pump2 pages
    Fuel Pressure › System Information › System Diagnosis
    Fuel Pump Relay › Component Information › Technical Service Bulletins › A/T - No 2-3 Upshift at Full Throttle/Engine Cutout
  - Fuel Supply Line › Component Information › Technical Service Bulletins › Injection Lines 1 Thru 4 Leak Due to Vibration2
  - Fuel Tank › Fuel Gauge Sender › Component Information9 pages
    Specifications
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Idle Speed/Throttle Actuator - Electronic › Component Information › Technical Service Bulletins › Engine Surges Following Cold Start2
  - Relays and Modules - Fuel Delivery and Air Induction › Fuel Pump Relay › Component Information › Technical Service Bulletins › A/T - No 2-3 Upshift at Full Throttle/Engine Cutout
  - Sensors and Switches - Fuel Delivery and Air Induction11 pages
    Accelerator Pedal Position Sensor › Component Information › Locations
    Air Flow Meter/Sensor › Component Information › Locations › Air Flow Sensor W/Intake Air Temperature Sensor (EDS)2
    Throttle Full Open Switch › Component Information › Locations2
    Throttle Position Sensor › Component Information › Technical Service Bulletins6 pages
    Customer Interest for Throttle Position Sensor: › 07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
    All Technical Service Bulletins for Throttle Position Sensor: › 07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
  - Supercharger › Supercharger Oil › Component Information › Technical Service Bulletins › Maintenance - Factory Approved Service Products2 3 4 5
  - Accelerator Cable <--> [Throttle Cable/Linkage] › Component Information16 pages
    Technical Service Bulletins12 pages
    Recalls for Accelerator Cable:6 pages
    CMP93-0613 › Jul › 93 › Recall - Throttle Cable Bushing Replacement2 3 4 5
    93V095000 › May › 93 › Recall 93V095000: Throttle Cable Bushing Replacement
    All Technical Service Bulletins for Accelerator Cable:6 pages
    CMP93-0613 › Jul › 93 › Recall - Throttle Cable Bushing Replacement2 3 4 5
    93V095000 › May › 93 › Recall 93V095000: Throttle Cable Bushing Replacement
    Testing and Inspection › Non Turbo2
    Adjustments › 300D2
  - Throttle Full Open Switch › Component Information › Locations2
  - Throttle Position Sensor › Component Information › Technical Service Bulletins11 pages
    All Technical Service Bulletins: › 07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
    Customer Interest: › 07.1_016 › Dec › 87 › Fuel Rack Position Sensor - Testing2 3
    All Other Service Bulletins for Throttle Position Sensor:5 pages
    43_009 › Feb › 91 › Vacuum Pump - Repair Tips (Piston-Type)
    07_1-037 › Sep › 87 › Engine - Won't Shut OFF When Cold2
    43_006 › Sep › 87 › Engine - Will Not Shut OFF When Cold2
    All Other Service Bulletins for Throttle Position Sensor:0 pages
    43_009 › Feb › 91 › Vacuum Pump - Repair Tips (Piston-Type)
    07_1-037 › Sep › 87 › Engine - Won't Shut OFF When Cold
    43_006 › Sep › 87 › Engine - Will Not Shut OFF When Cold
  - Turbocharger3 pages
    Turbocharger Air Line › Component Information › Technical Service Bulletins › Oil Leak at Charge Air Distribution Line and Cyl. Head
    Wastegate Actuator › Component Information › Technical Service Bulletins › Engine Surges at Full Load Operation Above 2000rpm2
- Ignition System27 pages
- Glow Plug System49 pages
  - Coolant Temperature Sensor, Glow Plug › Component Information › Locations
  - Glow Plug › Component Information10 pages
    Specifications2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Glow Plug Control Module › Component Information › Technical Service Bulletins › ABS - Preglow System Modification Fixes ABS Light2 3 4 5
  - Glow Plug Relay › Component Information14 pages
    Technical Service Bulletins › Battery Discharges for No Apparent Reason2 3 4 5 6
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
  - Relays and Modules - Glow Plug System19 pages
    Glow Plug Control Module › Component Information › Technical Service Bulletins › ABS - Preglow System Modification Fixes ABS Light2 3 4 5
    Glow Plug Relay › Component Information14 pages
    Technical Service Bulletins › Battery Discharges for No Apparent Reason2 3 4 5 6
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8
- Transmission Control Systems6 pages
  - Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T › Shift Solenoid, A/T › Component Information3 pages
    Technical Service Bulletins › A/T - No 2-3 Upshift at Full Throttle/Engine Cutout
    Locations › Kickdown Switch2
  - Relays and Modules - Transmission and Drivetrain2 pages
    Relays and Modules - Differential › ASD Control Unit <--> [Control Unit, Differential Lock] › Component Information › Locations
    Relays and Modules - Transfer Case › Control Module, Transfer Case › Component Information › Locations
  - Sensors and Switches - Transmission and Drivetrain › System Information › Technical Service Bulletins › Electrical - Electrostatic Discharge Damage Prevention
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