🏷️ Basic Information Identification Make: Mercedes-Benz Model: 190E Model Code: W201 Year: 1991 Codes Chassis Code: W201 👋 Introduction Market Position Vehicle Segment: Compact Executive Sedan Target Audience: Consumers seeking a reliable, well-engineered, and luxurious compact sedan from a premium brand Competitive Analysis Key Competitors: BMW 3 Series (E36), Audi 80/90, Acura Legend, Lexus ES 250 Key Features Brand Reputation: Reputation for build quality, safety, durability, and engineering excellence Design Philosophy: Understated elegance, robust construction, driver-focused ergonomics Manual Value Proposition: Official, comprehensive service information enabling owners and technicians to maintain and repair the vehicle correctly and efficiently. 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Suspension: Yes Brakes: Yes Electrical System: Yes Fuel System: Yes Exhaust System: Yes Cooling System: Yes HVAC: Yes Steering: Yes Body And Trim: Yes Interior: Yes Chassis Components: Yes Diagnostics And Troubleshooting: Yes Page Count Estimated Pages: Varies by specific software version, typically equivalent to 1000+ printed pages Manual Type Type: Official Service & Repair Manual Software Language Language: English Format Format: Software (likely digital download/disc-based) 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed diagrams, specifications, removal/installation of engine components (pistons, rings, bearings, valves, camshafts, crankshaft, etc.) Engine Management And Electronics: Fuel injection system (KE-Jetronic), ignition system, engine control unit (ECU) diagnostics, sensor locations and functions, wiring diagrams Drivetrain: Manual and automatic transmission overhauls, clutch service, differential service, driveshaft and CV joint maintenance Suspension And Steering: Front and rear suspension component replacement, alignment specifications, power steering system service, steering linkage repair Braking System: Front and rear brake component replacement (pads, rotors, calipers), brake system bleeding, ABS system components and troubleshooting (if equipped) Electrical System: Complete wiring diagrams, fuse box layouts, lighting systems, accessory circuits, starter and alternator service, battery testing HVAC System: Air conditioning system service, heater core replacement, blower motor service, climate control unit diagnostics Body And Interior: Door panel removal, seat removal, glass replacement, body panel adjustments, trim piece installation Procedures Included Preventive Maintenance: Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement Diagnostic Procedures: Step-by-step troubleshooting guides for common and complex issues, fault code interpretation (if applicable to the year/system) Repair Procedures: Detailed, illustrated step-by-step instructions for component removal, repair, and reinstallation for virtually all vehicle systems Component Rebuilds: Information on overhauling engines, transmissions, and other major mechanical assemblies Specification Setting: Torque specifications, alignment settings, engine timing adjustments, valve clearances Technical Depth Depth Level: Comprehensive, covering routine maintenance to major component overhauls and complex diagnostics Diagnostic Capability: Detailed diagnostic trees and explanations for electrical and mechanical faults Accuracy And Detail: Officially licensed, ensuring high accuracy and detail consistent with Mercedes-Benz factory procedures 📊 Manual Specifications File Format Digital Format: Software application with searchable content, likely PDF or proprietary format Print Quality Digital Render: High-resolution, clear text and diagrams suitable for on-screen viewing and printing Binding Type Digital Access: N/A (Digital) Paper Type Digital Media: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, SOHC (Single Overhead Camshaft) Displacement: 2.3 Liters (2299 cc) Engine Code Variants: Commonly 2.3-16, but 190E typically refers to the 2.3L naturally aspirated variant (M102 engine series) Performance Horsepower: Approx. 130-147 hp (depending on specific US market configuration and tuning) Torque: Approx. 140-150 lb-ft Fuel System Fuel Injection: Bosch KE-Jetronic (CIS-E) Continuous Injection System Fuel Type: Unleaded Gasoline (Octane rating typically 91+) 🔧 Transmission Standard Type: 5-speed Manual Transmission Optional Type: 4-speed Automatic Transmission (e.g., 722.4) Features Torque Converter Lockup: Yes (on automatic transmission) Transmission Fluid: MB Spec 236.1 (e.g., Dexron II) 📐 Dimensions Exterior Length: Approx. 173.7 inches (4412 mm) Width: Approx. 66.7 inches (1694 mm) Height: Approx. 54.3 inches (1380 mm) Weights Curb Weight: Approx. 2800-3100 lbs (1270-1406 kg), depending on configuration 🛡️ Safety Features Ratings Federal Crash Safety: Designed to meet rigorous safety standards of the era, with a strong emphasis on passive safety features. Active Features ABS: Anti-lock Braking System (ABS) available on some models/optional Passive Features Airbags: Driver's side airbag standard in the US market from the late 80s, optional or standard by 1991. Body Structure: Reinforced safety cell, crumple zones, side-impact protection 💡 Technology Features Infotainment Audio System: Original systems were typically AM/FM radio with cassette player, optional CD changer may have been available. Driver Assistance Cruise Control: Standard on most US market models. Connectivity OBD Ii: Not applicable; OBD-I was used in its early form. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles or 12 months, whichever comes first (refer to manual for exact spec). Transmission Fluid Change: Automatic: 30,000-60,000 miles; Manual: Inspect and change as needed (refer to manual). Coolant Change: Every 2-3 years or as specified. Spark Plug Replacement: Typically every 30,000-60,000 miles depending on plug type. Fluid Specifications Engine Oil: SAE 15W-40 or 10W-40 (API SG or higher). Check manual for specific MB approval. Coolant: Ethylene Glycol...