🏷️ Basic Information Identification Make: Mercedes-Benz Model: Various (1988-1998) Model Range: W124, W126, W129, W140, W201, W202, W463, R107, R129, C124, C126, C140, etc. Year Range Covered: 1988-1998 Codes Diagnostic Code Type: OBD-I, Proprietary MB Codes 👋 Introduction Market Position Target Audience: Independent repair shops, DIY enthusiasts, Mercedes-Benz owners with a technical inclination Value Proposition: Provides essential diagnostic information often difficult to find for these classic Mercedes-Benz models Competitive Analysis Availability: Official Mercedes-Benz workshop manuals from this era are often proprietary and expensive; third-party compilations are valuable Key Features Diagnostic Focus: Dedicated to fault codes, offering a significant advantage over general repair manuals for troubleshooting Data Scope: Covers a broad range of Mercedes-Benz models and electronic systems from the specified decade 📋 Manual Details Coverage Areas Main Focus: Fault codes and diagnostic procedures Diagnostic Systems: Engine Control Modules (ECM/ECU), Transmission Control Modules (TCM), ABS, Airbag (SRS), Climate Control (ECC/AAC), Body Control Modules (BCM), Immobilizer, etc. Troubleshooting: Diagnosis and resolution of fault codes Page Count Estimated Pages: High (likely 500+ pages, specific count not provided) Manual Type Type: Diagnostic and Repair Information Manual Language Language: English Format Format: Digital Download (likely PDF) 📖 Manual Coverage Systems Covered Engine Management: Fuel injection (KE-Jetronic, HFM, ME), ignition, emissions control, idle speed control Powertrain Control: Automatic transmission control (e.g., 722.3, 722.4, 722.5, 722.6 early versions) Braking System: Anti-lock Braking System (ABS) codes and diagnostics Safety Systems: Supplemental Restraint System (SRS) - Airbag fault codes and diagnostics Climate Control: Automatic Climate Control (ECC) and Air Conditioning (AAC) fault codes Body Electronics: Central locking, power windows, mirrors, lighting, instrument cluster warnings Immobilizer: Anti-theft system fault codes and procedures Procedures Included Code Retrieval: Methods for reading fault codes (e.g., blinking codes, diagnostic connectors, early scan tools) Code Interpretation: Meaning and common causes for each fault code Troubleshooting Charts: Flowcharts and step-by-step guides for diagnosing specific faults Component Testing: Procedures for testing sensors, actuators, and control modules Wiring Diagrams: Key diagnostic-related wiring diagrams (often presented within troubleshooting steps) Clearance Procedures: Methods for clearing fault codes after repairs Technical Depth Depth Level: Intermediate to Advanced Diagnostic Diagnostic Tools: Information relevant to using Mercedes-Benz proprietary diagnostic tools (e.g., STAR Diagnosis, early test units) and generic OBD-I readers Component Locations: Identification of critical sensors, actuators, and control modules relevant to fault codes 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Likely text-searchable if properly generated PDF Print Quality Resolution: Dependent on original source, typically high enough for clear text and diagrams Binding Type Binding: N/A (Digital) Paper Type Paper: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Types Covered: M102, M103, M104 (I4, I6 Petrol), OM601, OM602, OM603, OM605, OM606 (I4, I5, I6 Diesel), M117, M119 (V8 Petrol), M120 (V12 Petrol) Performance Typical Hp Range: 70 HP (Diesel) to 408 HP (V12 Bi-turbo) Typical Torque Range: 130 Nm (Diesel) to 568 Nm (V12 Bi-turbo) Fuel System Injection Systems: Bosch KE-Jetronic (CIS-E), Bosch HFM, Bosch ME Diesel Injection: Mechanical injection pumps, early electronic control (EDC for OM605/606) 🔧 Transmission Standard Manual Transmissions: 4-speed, 5-speed (e.g., Getrag 260, Getrag 265 for performance models) Optional Automatic Transmissions: Mercedes-Benz 4-speed (722.3, 722.4), 5-speed (722.5, 722.6 early variants) Features Transmission Control: Electronic control for later automatic transmissions, offering modes like Economy (E) and Sport (S) 📐 Dimensions Exterior Common Chassis Types: Sedan (W124, W140), Coupe (C124, C140), Convertible (A124, R129), Wagon (S124), SUV (W463) Weights Curb Weight Range: Approx. 1400 kg (190E) to 2000+ kg (S-Class, G-Wagen) 🛡️ Safety Features Ratings Era Standards: Designs pre-date widespread standardized crash test ratings (e.g., NHTSA, Euro NCAP) but emphasized structural integrity and passive safety Active Features ABS: Standard on most models by the late 1980s/early 1990s Traction Control: ASR (Anti-Slip Regulation) became available on higher-end models Passive Features Airbags: Driver's airbag standard on many models from early 90s; passenger airbag became an option or standard later Seatbelts: Pre-tensioners for front seatbelts became common 💡 Technology Features Infotainment Audio Systems: Factory cassette or CD players with AM/FM radio, early CD changers available on higher trims Navigation: Very early GPS navigation systems were optional on top-tier models (e.g., W140) Driver Assistance Cruise Control: Standard on most models, often a vacuum-operated or electronic system Parking Assistance: Rear parking sensors began appearing on luxury models towards the end of this period Connectivity Mobile Integration: Optional dealer-installed car phones or primitive Bluetooth hands-free kits on later models 🔧 Maintenance Service Intervals Oil Change: Typically every 10,000-15,000 km or 12 months, depending on engine and oil type (check specific model) Major Service: Intervals around 30,000-60,000 km or 24-48 months, involving fluid flushes, filter replacements, inspections Fluid Specifications Engine Oil: API SL/SM/SN or ACEA A3/B3/B4. Viscosities: 0W-40, 5W-40, 10W-40, 15W-40 (specifics depend on engine and climate). e.g., MB-Approval 229.3 or 229.5 Coolant: Mercedes-Benz Approved Antifreeze/Coolant (e.g., G48 - blue/green, or G05 -...