300CE W124 L6-3.0L M104 (1990): Engine, Cooling and Exhaust
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 (124.052) 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), 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.
Engine470 pages
Compression Check › System Information10 pages
Camshaft, Lifters and Push Rods65 pages
- Camshaft Bearing › Component Information › Specifications2
Lifter / Lash Adjuster, Valve › Component Information4 pages
- Rocker Arm Assembly › Component Information › Technical Service Bulletins › Camshaft - Updated Replacement Part23
Cylinder Block Assembly64 pages
- Connecting Rod Bearing › Component Information › Specifications › Connecting Rod Bearing Clearance2
Connecting Rod, Engine › Component Information8 pages
- Coolant Drain Plug, Cylinder Block › Component Information › Specifications
- Crankshaft Gear/Sprocket › Component Information › Service and Repair
Crankshaft Main Bearing › Component Information5 pages
- Crankshaft Seal Retainer › Component Information › Service and Repair2
- Engine Block Heater › Component Information › Technical Service Bulletins › Engine - Block Heater Installation2345678910111213141516
- Expansion/Freeze Plug › Component Information › Technical Service Bulletins › Camshaft - Freeze Plug Replacement Tool
- Harmonic Balancer - Crankshaft Pulley › Component Information › Technical Service Bulletins › Vehicle - New Dealer Technical Bulletin2
- Piston, Engine › Component Information › Specifications234
- Piston Ring, Engine › Component Information › Specifications23
Cylinder Head Assembly39 pages
- Valve Clearance › System Information › Specifications2
- Cylinder Head Bolts › Component Information › Technical Service Bulletins › Engine - Caution When Installing Head Bolts
- Rocker Arm Assembly › Component Information › Technical Service Bulletins › Camshaft - Updated Replacement Part23
Valve Cover › Component Information › Technical Service Bulletins6 pages
All Technical Service Bulletins for Valve Cover:3 pages
- Customer Interest: › 01_020 › Aug › 90 › Engine - Valve Cover, Modified Oil Separator2
- All Other Service Bulletins for Valve Cover: › DDAF01_20-U-5140A › May › 97 › Engine Oil Penetrates Air Cleaner
- Valve Guide › Component Information › Technical Service Bulletins › Valve Guides - Special Tools for Checking & Replacement
Valve Seat › Component Information3 pages
Valve Spring › Component Information › Technical Service Bulletins › Technical Service Bulletins for Valve Spring:20 pages
- S-05_010A › May › 01 › Tools - Universal Valve Spring Tool2345
- S-58_091A › May › 01 › Special Tool - Universal Valve Spring Tool2345
- 05_010 › Jan › 97 › Valve Springs - Tool Kit for Removing/Installing234
- 58_091 › Jan › 97 › Engine - Universal Valve Spring Remover/Installer234
- 05_081 › Mar › 90 › Valve - Tool Modification
- 58_074 › Mar › 90 › Valve Spring Compressor - Modifications
Valve, Intake/Exhaust › Component Information3 pages
Drive Belts, Mounts, Brackets and Accessories24 pages
Drive Belt › Component Information16 pages
Technical Service Bulletins11 pages
- Customer Interest: › 46_068 › May › 90 › Steering - Pump Pulley, Belt Noise, Torque
- All Technical Service Bulletins: › 46_068 › May › 90 › Steering - Pump Pulley, Belt Noise, Torque
All Other Service Bulletins for Drive Belt:0 pages
- DDAF83_20-U-4040AU › Feb › 97 › Odors From ACC System in Heating Mode
- 83_075 › Jun › 91 › A/C - ACC Production Change
- 83_033A › May › 91 › A/C - Gurgling Noise From Heater Core
- 83245 › Aug › 90 › Heating System - Air Separator Installation
- Testing and Inspection › AP13.22-P-1351Z Inspect Poly-V-Belt For Wear and Damage2345
- Drive Belt Tensioner › Component Information › Specifications23
Engine Mount › Component Information3 pages
- Idler Pulley › Component Information › Specifications2
Engine Lubrication94 pages
- Engine Oil Pressure › Component Information › Specifications
- Engine Oil Dip Stick - Dip Stick Tube › Component Information › Testing and Inspection
Engine Oil Drain Plug › Component Information3 pages
Engine Oil › Component Information43 pages
Technical Service Bulletins › Technical Service Bulletins for Engine Oil:40 pages
- S-58_00-118 › Mar › 01 › Engine Oil - Approved Evacuation Equipment2345678
- 00_65 › Jul › 97 › Tools - Oil Evacuation Equipment2
- 00_057A › Nov › 95 › Engine - Oil Level Checking Procedure Revised
- 00_134 › Nov › 95 › Engine - Reduction of Oil Capacity
- 18_045 › Nov › 95 › Oil - Engine Oil Capacity Reduced
- 00_053 › Oct › 93 › Maintenance - Factory Approved Service Products2345
- 00_081 › Jun › 90 › Engine - Break-In Oil New and Rebuilt
- 18_043 › Mar › 90 › Oil - Engine Oil Test Sheets for Measuring Consumption234567891011121314
- 00_031A › Aug › 88 › Oils & Fluids - Factory Approved Products234567
- Specifications › Pressure, Vacuum and Temperature Specifications23
- Oil Cooler, Engine › Component Information › Testing and Inspection2
Oil Filter, Engine › Component Information › Technical Service Bulletins6 pages
All Technical Service Bulletins for Oil Filter:3 pages
- Customer Interest: › 18_011A › Jun › 91 › Engine - Oil Filter Housing O-Ring Inspection
All Other Service Bulletins for Oil Filter:2 pages
Oil Filter Housing › Component Information › Technical Service Bulletins4 pages
All Technical Service Bulletins for Oil Filter Housing:2 pages
- Customer Interest: › 18_011A › Jun › 91 › Engine - Oil Filter Housing O-Ring Inspection
- All Other Service Bulletins for Oil Filter Housing: › 18_010 › Jun › 90 › Engine - Oil Filter Precaution For O-Ring/Gasket
- Oil Level Warning Indicator › Component Information › Technical Service Bulletins › Low Oil Level Lamp Comes ON, Oil Level OK234
- Oil Level Sensor › Component Information › Technical Service Bulletins › Low Oil Level Lamp Comes ON, Oil Level OK2
Oil Pan, Engine › Component Information6 pages
- Oil Pressure Gauge › Component Information › Diagrams › Diagram Information and Instructions2345678
Oil Pressure Sender › Component Information10 pages
- Oil Spray Jet › Component Information › Service and Repair
- Intake Manifold › Component Information › Specifications2345
Seals and Gaskets, Engine20 pages
- Crankshaft Main Bearing Seal › Component Information › Application and ID23
- Cylinder Head Gasket › Component Information › Technical Service Bulletins › Oil Leakage at Top Front Cover2345678
- Front Crankshaft Seal › Component Information › Service and Repair
- Oil Pan Gasket, Engine › Component Information › Technical Service Bulletins › Oil Exits at Rear End Cap23456
- Valve Guide Seal › Component Information › Service and Repair
- Water Pump Gasket › Component Information › Service and Repair
Sensors and Switches - Engine12 pages
- Oil Level Sensor › Component Information › Technical Service Bulletins › Low Oil Level Lamp Comes ON, Oil Level OK2
Oil Pressure Sender › Component Information10 pages
Timing Components68 pages
- Crankshaft Gear/Sprocket › Component Information › Service and Repair
- Timing Chain Guide › Component Information › Service and Repair › Dimensions For Pressing In A Support Pin Into Crankcase2345
Timing Chain Tensioner › Component Information5 pages
- Timing Component Alignment Marks › Component Information › Locations
Tune-up and Engine Performance Checks41 pages
- Fuel Pressure › System Information › Specifications
Air/Fuel Mixture › System Information5 pages
- Idle Speed › System Information › Technical Service Bulletins › All Technical Service Bulletins for Idle Speed: › DD07.3-90101 › Jul › 91 › Idle Speed Exceeds 1100 RPM at Times
- Air Cleaner Housing › Air Filter Element › Component Information › Technical Service Bulletins › Engine Oil Penetrates Air Cleaner
- Fuel Filter › Component Information › Locations234
- Firing Order › Component Information › Specifications
- Ignition Cable › Component Information › Technical Service Bulletins › Ignition System - Wires with Crimp-On terminals2
Compression Check › System Information10 pages
- Valve Clearance › System Information › Specifications2
- Water Pump › Drive Pulley, Water Pump › Component Information › Specifications
Cooling System190 pages
- Auxiliary Water Pump › Component Information › Specifications23
- Coolant Drain Plug, Cylinder Block › Component Information › Specifications
- Coolant Level Sensor › Component Information › Technical Service Bulletins › Brake/Coolant MIL ON & Headlamp Wiper Inop.
- Coolant Line/Hose › Component Information › Service and Repair
- Coolant Reservoir › Component Information › Technical Service Bulletins › Radiator - Coolant Overflow Fitting Removal Procedure2
Radiator Cooling Fan52 pages
- Radiator Cooling Fan Temperature Sensor / Switch › Component Information › Locations › Temperature Switch (105/115 Degree C)2
Fan Clutch › Component Information4 pages
Engine - Coolant Temperature Sensor/Switch20 pages
- Radiator Cooling Fan Temperature Sensor / Switch › Component Information › Locations › Temperature Switch (105/115 Degree C)2
Temperature Sensor (Gauge) › Component Information10 pages
- Temperature Switch (Warning Indicator) › Component Information › Diagrams › Diagram Information and Instructions2345678
- Fan Shroud › Component Information › Adjustments2
- Heater Control Valve › Component Information › Specifications23456
Heater Core › Component Information › Technical Service Bulletins18 pages
All Other Service Bulletins for Heater Core:4 pages
- Lamps and Indicators - Cooling System › Temperature Gauge › Component Information › Diagrams › Diagram Information and Instructions2345678
- Radiator › Radiator Drain Plug › Component Information › Specifications
- Radiator Cap › Component Information › Specifications2
- Seals and Gaskets, Cooling System › Water Pump Gasket › Component Information › Service and Repair
Sensors and Switches - Cooling System21 pages
- Coolant Level Sensor › Component Information › Technical Service Bulletins › Brake/Coolant MIL ON & Headlamp Wiper Inop.
Engine - Coolant Temperature Sensor/Switch20 pages
- Radiator Cooling Fan Temperature Sensor / Switch › Component Information › Locations › Temperature Switch (105/115 Degree C)2
Temperature Sensor (Gauge) › Component Information10 pages
- Temperature Switch (Warning Indicator) › Component Information › Diagrams › Diagram Information and Instructions2345678
- Temperature Gauge › Component Information › Diagrams › Diagram Information and Instructions2345678
- Thermostat, Engine Cooling › Component Information › Specifications › Mechanical Specifications2
- Water Pump › Drive Pulley, Water Pump › Component Information › Specifications
Exhaust System13 pages
Catalytic Converter › Component Information8 pages
Technical Service Bulletins4 pages
- Customer Interest: › 49_001 › Jul › 91 › Catalytic Converter - Updated, Exhaust Noise
All Technical Service Bulletins for Catalytic Converter:2 pages
- All Other Service Bulletins for Catalytic Converter: › 14_004 › May › 90 › Emissions - Catalytic Converter EPA Replacement Warning
- Description and Operation › Three Way Catalytic Converter (TWC)234
- Exhaust Manifold › Component Information › Technical Service Bulletins › MIL ON ON/OFF Ratio Unadjustable After Repair Work2
- Exhaust Pipe › Component Information › Technical Service Bulletins › Exhaust System - Exhaust Pipe Chrome Tip Care2
- Exhaust Sample Port › Component Information › Technical Service Bulletins › Emissions - Measurement Adapter Kit/Tool