🏷️ Basic Information Identification Make: BMW Model: 635CSi Series: E24 Year: 1989 Codes Chassis Code: E24 👋 Introduction Market Position Target Audience: Technicians, Mechanics, DIY Enthusiasts Competitive Analysis Advantage Price: Low Price Point for Comprehensive Information Advantage Delivery: Instant Access via Digital Download Key Features Feature Completeness: Official Full Complete Factory Service Repair Manual Information Feature Data Accuracy: Technical Data Kept Like Original Manufacturer Book Feature Usability: Aids in Repair, Learning, and Work in Car Repairs 📋 Manual Details Coverage Areas Primary Focus: Electronic Troubleshooting Additional Coverage: General Maintenance, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagrams, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection, Fuel System, Emission System, HVAC, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle Page Count Estimated Page Count: Hundreds to Thousands (Printable) Manual Type Type: Factory Service Repair Manual (Electronic Troubleshooting Focus) Language Language: English Format File Format: PDF Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Engine Management: Engine Control System, Fuel Injection, Emission System Drivetrain: Transmission Service/Repair, Differential/Drive, Axle Chassis And Suspension: Suspension, Steering, Brake System Electrical And Electronic: Electrical System, Wiring Diagram, Engine Control System Comfort And Convenience: Heater/Air Conditioner, Interior Procedures Included Diagnostics: Electronic Troubleshooting, Fault Code Diagnosis, Circuit Analysis Maintenance: General Maintenance, Periodic Lubrication, Maintenance Check List, Maintenance Chart Repair: Engine Service/Repair, Transmission Service/Repair, Brake System Repair, Cooling System Repair, Fuel System Repair Diagrams: Complete Wiring Diagrams, Circuit Diagrams, Component Datasheets Technical Depth Depth: Comprehensive Factory Data for Technicians and Enthusiasts 📊 Manual Specifications File Format Readability: High Quality Printable PDF Compatibility: Windows & Mac Compatible Archive Requirement: WinZip (for larger files) Reader Requirement: Adobe PDF Reader Print Quality Quality: Great Quality Printable Pages Binding Type Type: Digital Download (No Physical Binding) Paper Type Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: M30B35 Displacement: 3.430 cc (3.4 Liters) Configuration: Inline 6-Cylinder Valvetrain: SOHC (Single Overhead Camshaft) Performance Horsepower: ~208-218 hp (SAE Gross) @ ~5700 rpm (depending on market and specific tuning) Torque: ~224-230 lb-ft (SAE Gross) @ ~4000 rpm (depending on market and specific tuning) Fuel System Fuel Delivery: Bosch L-Jetronic Fuel Injection Fuel Type: Unleaded Gasoline (Premium) Engine Oil Recommended Viscosity: 10W-40 or 20W-50 (refer to manual for exact specifications and temperature ranges) Oil Capacity: Approx. 6.5 Liters (6.9 US Quarts) with filter change 🔧 Transmission Standard Type: Getrag 265 5-Speed Manual Transmission Optional Type: ZF 4HP-22 4-Speed Automatic Transmission Features Manual Gear Ratios: Refer to manual for specific gear ratios (e.g., 1st: 4.04, 2nd: 2.35, 3rd: 1.50, 4th: 1.23, 5th: 1.00 - ratios may vary slightly) Automatic Features Automatic Modes: Standard (D), Sport (S), Economy (E) Fluid Specifications Manual Transmission Fluid: BMW ATF (Type T-IV or equivalent for ZF automatic, specific manual gear oil for Getrag - refer to manual) Fluid Capacities Automatic Transmission Fluid Capacity: Approx. 10-12 Liters (10.6-12.7 US Quarts) total fill 📐 Dimensions Exterior Length: Approx. 4758 mm (187.3 in) Width: Approx. 1797 mm (70.7 in) Height: Approx. 1370 mm (53.9 in) Wheelbase: Approx. 2754 mm (108.4 in) Weights Curb Weight: Approx. 1540-1650 kg (3395-3638 lbs) depending on transmission and options Gross Vehicle Weight Rating: Refer to vehicle data plate 🛡️ Safety Features Ratings Crash Test Data: N/A (Modern crash test ratings not applicable to 1989 model year standards; refer to manual for design specifications) Active Features Braking System: 4-Wheel Disc Brakes (Ventilated Front) ABS: Available (Anti-lock Braking System) Passive Features Airbags: Driver's Airbag (standard on later models, optional on earlier ones, verify for 1989) Seatbelts: 3-Point Inertia Reel Seatbelts (Front), 3-Point Seatbelts (Rear) 💡 Technology Features Infotainment Head Unit: Period-appropriate BMW Bavaria C III or similar aftermarket unit likely installed. Speaker System: Multiple speaker locations throughout the cabin. Driver Assistance Cruise Control: Standard feature on most 635CSi models. Connectivity Early Electronics: Basic electronic engine management, limited connectivity features typical of the late 1980s. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500-10,000 miles or annually (refer to manual for specific guidance based on driving conditions) Transmission Fluid Change Interval: Automatic: 30,000-50,000 miles; Manual: Check for leaks, fluid condition inspection Spark Plug Replacement Interval: Approx. 30,000 miles (check manual for specific type and gap) Fluid Specifications Coolant Type: BMW Blue Antifreeze/Coolant (G48 or equivalent ethylene glycol-based coolant) Coolant Capacity: Approx. 12 Liters (12.7 US Quarts) Brake Fluid Type: DOT 4 Power Steering Fluid Type: BMW ATF or CHF 11S (confirm via manual) Known Issues Common Problems: Age-related wear: Rubber hoses and seals degradation, cooling system component failures (water pump, radiator), fuel system component issues (fuel pump, injectors), electrical gremlins (corrosion, worn wiring), differential seal leaks, window regulator failures. Maintenance Focus: Due to the age of the vehicle, diligent maintenance and proactive replacement of aging components are crucial for reliability. 📚 Vehicle History Brand Heritage Brand Essence: BMW represents 'Ultimate Driving Machine' with a focus on performance, engineering, and...