🏷️ Basic Information Identification Make: Mercedes-Benz Model: W201 (190 Series) Codes Chassis Code: W201 Generation Production Years: 1982-1993 👋 Introduction Market Position Segment: Compact Executive Sedan (a pioneering model for Mercedes-Benz in this segment) Competitive Analysis Key Competitors: BMW E30 3 Series, Audi 80/90, Volvo 240, Saab 900 Key Features Design Philosophy: Engineered for durability, safety, and a balanced driving experience, often referred to as the 'Baby Benz'. Impact: Successfully broadened Mercedes-Benz's appeal to a younger demographic and established a new entry-level luxury sedan market. 📋 Manual Details Coverage Areas Covered Years: 1981-1993 Page Count Estimated Pages: Varies by specific manual (typically 1000+ pages for comprehensive service manuals) Manual Type Type: Factory Service Manual / Repair Manual Language Language: English (or original manufacturer language with potential translations) Format Format: Print / Digital (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine (gasoline & diesel), fuel system, ignition, cooling, exhaust, clutch, manual transmission, automatic transmission Chassis: Suspension (front & rear), steering system, braking system (hydraulic, ABS), wheels, tires Electrical: 12V DC electrical system, battery, charging system (alternator), starter, lighting, instrumentation, wiring diagrams, fuses, relays, electronic control units (ECUs), comfort systems Body: Body shell, exterior trim, doors, windows, sunroof, interior trim, seats, HVAC (heating, ventilation, air conditioning) Procedures Included Maintenance: Scheduled maintenance, oil changes, fluid checks and replacements, filter replacements, tune-ups Diagnostics: Troubleshooting guides, symptom-based diagnostics, component testing, diagnostic trouble codes (DTCs) if applicable to later models/ECUs Repair: Component removal and installation, system repairs, overhaul procedures, adjustment specifications Technical Specifications: Torque specifications, clearances, tolerances, fluid capacities, electrical specifications, component data Technical Depth Depth: Comprehensive: Covers basic maintenance to complete engine and transmission rebuilds, detailed electrical troubleshooting, and body repair. 📊 Manual Specifications File Format Digital Quality: High-resolution scans, searchable text (OCR), layered diagrams (if available) Print Quality Paper Type: Durable, high-quality paper stock suitable for workshop environments Binding Type Binding: Professional binding (e.g., spiral-bound, perfect-bound) for ease of use ⚙️ Engine Specifications Primary Engine Engine Codes: M102 (2.0L, 2.3L gasoline), OM601 (2.0L diesel), OM602 (2.5L diesel) Performance Horsepower Range: 70 hp (2.0D) to 136 hp (2.3-16) depending on engine variant Torque Range: 96 lb-ft (2.0D) to 180 lb-ft (2.3-16) depending on engine variant Fuel System Gasoline Injection: Bosch K-Jetronic (CIS) mechanical fuel injection (early models), Bosch KE-Jetronic (CIS-E) electronic fuel injection (later models) Diesel Injection: Indirect Injection (IDI) with Bosch inline injection pumps Cooling Coolant Type: MB 325.0 Specification (typically a 50/50 mix of Mercedes-Benz approved antifreeze and distilled water) Maintenance Spark Plugs: NGK BKR5EK (for many 2.3L models, consult manual for exact fitment) Oil Filter Part Numbers: Mann-Filter W914/2, Mahle OX104, Bosch 0451103207 (verify for specific engine) 🔧 Transmission Standard Transmission Type Gasoline: 4-speed or 5-speed manual transmission Transmission Type Diesel: 5-speed manual transmission (common) Optional Automatic Transmission: 4-speed automatic transmission (e.g., 722.4 / 4G-TRONIC) Features Automatic Features: Hydraulic torque converter, sport/economy modes on some variants Fluid Specifications Automatic Transmission Fluid: MB 236.1 Specification (e.g., Shell ATF Dexron II, Valvoline ATF Dexron II) Manual Transmission Fluid: API GL-4 Gear Oil (e.g., SAE 75W-90 or 80W-90, consult manual for specific viscosity) 📐 Dimensions Exterior Length: Approx. 4350-4390 mm (171.3-172.8 in) Width: Approx. 1690-1700 mm (66.5-66.9 in) Height: Approx. 1370-1380 mm (53.9-54.3 in) Wheelbase: Approx. 2665 mm (104.9 in) Weights Curb Weight: Approx. 1200-1400 kg (2645-3086 lbs) depending on engine and options Gross Vehicle Weight: Varies by model, consult specific vehicle data 🛡️ Safety Features Ratings Crash Test History: Early models were precursors to modern safety standards; later models improved with more advanced features. No standardized NCAP ratings from that era, but known for robust body structure. Active Features ABS: Optional on many models, standard on later high-performance variants (e.g., 190E 2.3-16) Passive Features Airbags: Driver's airbag became optional in later years of production, not standard initially. Seatbelts: Three-point inertia-reel seatbelts Body Construction: Reinforced safety cell, crumple zones 💡 Technology Features Infotainment Audio System: Factory fitted analog radios with cassette players, often with power antennas. Driver Assistance Cruise Control: Optional on many models Air Conditioning: Optional manual or automatic climate control systems Connectivity Factory Phone: Rarely factory fitted, but some later models could accommodate early car phones. 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000-15,000 km (6,000-9,000 miles) or 12 months, whichever comes first (depending on oil quality and driving conditions). Major Service Intervals: e.g., 60,000 km (40,000 miles) for spark plug replacement, 80,000 km (50,000 miles) for transmission fluid change (automatic). Fluid Specifications Engine Oil Capacity: Approx. 5-7 liters (4.7-7.4 US quarts) for most gasoline engines, consult manual for exact capacity and grade. Engine Oil Grade: MB 229.1 Specification (e.g., 10W-40, 15W-40 synthetic or semi-synthetic) Brake Fluid: DOT 4 Power Steering Fluid: MB 236.3 Specification (e.g., ATF Dexron II) Known Issues Common Problems: Coolant leaks (hose deterioration, head gasket), fuel distributor issues (K-Jetronic), seized climate control flaps, worn suspension bushings, ABS sensor...