🏷️ Basic Information Identification Make: BMW Model: 635CSi Body Style: Grand Tourer Coupe Generation E24: Second Generation (Late Model) Codes Chassis Code: E24 👋 Introduction Market Position Class: Luxury Grand Tourer / Sports Coupe Target Audience: Discerning buyers seeking performance, luxury, and distinctive styling. Often favored by enthusiasts and those appreciating classic European automotive engineering. Competitive Analysis Competitors: Mercedes-Benz SEC models (W126), Porsche 944, Jaguar XJS. Key Features Styling: Distinctive Bangle-era 'shark nose' design, long hood, Hofmeister kink rear window, elegant and timeless proportions. Performance Orientation: Powerful inline-six engine, RWD layout, balanced chassis, offering a blend of comfortable touring and spirited driving. Build Quality: Renowned BMW build quality and engineering, durable powertrains, and premium interior materials. Manual Purpose Primary Use: To provide comprehensive technical guidance for the maintenance, repair, and diagnosis of the BMW 635CSi (E24) models from 1983-1989, intended for mechanical technicians and skilled home mechanics. 📋 Manual Details Coverage Areas Covered Years: 1983, 1984, 1985, 1986, 1987, 1988, 1989 Page Count Estimated Pages: 1500+ Manual Type Type: Workshop Service Manual / Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: M30B34 inline-six, including: Engine mechanicals, lubrication, cooling, fuel injection (Bosch Motronic), ignition system, exhaust system, engine diagnostics, tuning. Transmission: Getrag 265 5-speed manual and ZF 4HP-22 4-speed automatic transmissions, including: removal, installation, overhaul, clutch, torque converter, shift mechanisms, fluid specifications, troubleshooting. Drivetrain: Rear-wheel drive, driveshaft, differential (limited-slip optional), axles, CV joints, propeller shaft, universal joints. Suspension: Front McPherson struts, rear semi-trailing arms, springs, shock absorbers, control arms, sway bars, bushings, ball joints, steering knuckles, wheel bearings. Steering: Power-assisted recirculating ball steering system, steering box, pump, hoses, steering column, tie rods, power steering fluid specifications. Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System - optional), brake calipers, rotors, pads, lines, master cylinder, parking brake, brake fluid specifications, bleeding procedures. Electrical: 12-volt system, battery, alternator, starter motor, wiring diagrams for all circuits, fuses, relays, lighting (headlights, taillights, interior), instrumentation, horn, power windows, mirrors, seats, sunroof. Climate Control: Heating, ventilation, and air conditioning (HVAC) system, blower motor, heater core, evaporator, refrigerant (R-12), compressor, controls, troubleshooting. Body And Chassis: Body panel removal/installation, door mechanisms, hood, trunk, bumpers, glass, seals, interior trim, sound deadening, corrosion prevention, chassis lubrication points. Fuel System: Fuel tank, fuel pump, fuel lines, fuel filter, fuel injectors, fuel pressure regulator, emission control systems. Cooling System: Radiator, fan, water pump, thermostat, hoses, coolant type and capacity, pressure testing. Procedures Included Maintenance: Routine maintenance, oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, belt inspection and adjustment, chassis lubrication. Diagnostics: Troubleshooting guides for common and uncommon issues, symptom-based diagnostics, electrical system diagnostics, engine performance diagnostics, diagnostic trouble codes (if applicable to the era/system). Repair: Step-by-step repair instructions for all major systems, component removal and installation, rebuilding procedures for engines and transmissions, bodywork repair techniques, electrical component replacement. Overhaul: Detailed instructions for complete engine and transmission overhauls, including specifications for wear limits and tolerances. Adjustments: Valve adjustments (if applicable to the specific M30 variant), idle speed adjustments, ignition timing adjustments, brake adjustments, clutch adjustments. Torque Specifications: Comprehensive torque specifications for all critical fasteners throughout the vehicle. Technical Depth Depth: Comprehensive, suitable for professional technicians and advanced DIY enthusiasts. Covers everything from basic maintenance to complete engine and transmission rebuilds. 📊 Manual Specifications File Format Quality: High-resolution PDF, generally scanned from original factory manuals. Searchable text is often available depending on the scan quality. Print Quality Usability: Printable for use in a workshop environment. Allows users to print specific sections as needed. Binding Type Type: N/A (Digital PDF format) Paper Type Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Code: M30B34 Configuration: Inline 6-cylinder, SOHC (Single Overhead Camshaft) Displacement: 3430 cc (3.4 liters) Bore X Stroke: 92 mm x 86 mm Compression Ratio: 8.0:1 or 8.5:1 (depending on market and specific revision) Performance Horsepower: Approx. 218 hp @ 5700 rpm (DIN) Torque: Approx. 340 Nm (251 lb-ft) @ 3500 rpm (DIN) Fuel System Injection: Bosch Motronic (L-Jetronic variant with electronic ignition control) Fuel Type: Unleaded Gasoline (RON 95/98 recommended) Ignition System Type: Electronic ignition with knock control (Motronic) 🔧 Transmission Standard Type: Getrag 265 5-speed manual transmission Optional Type: ZF 4HP-22 4-speed automatic transmission Features Manual Gear Ratios: 1st: 3.72, 2nd: 2.40, 3rd: 1.57, 4th: 1.19, 5th: 1.00; Reverse: 3.15 (typical) Automatic Gear Ratios: 1st: 2.48, 2nd: 1.48, 3rd: 1.00, 4th: 0.72; Reverse: 2.08 (typical) Fluid Specifications Manual Fluid: GL-4 75W-90 or 80W-90 gear oil (e.g., Castrol EPX 80W-90) Automatic Fluid: ATF Dexron III (or equivalent) 📐 Dimensions Exterior Length: 4755 mm (187.2 in) Width: 1720 mm (67.7 in) Height: 1360 mm (53.5 in) Wheelbase: 2627 mm (103.4 in) Front Track: 1445 mm (56.9 in) Rear Track: 1465 mm (57.7 in) Weights Curb Weight: Approx. 1550-1650 kg (3417-3638 lbs), depending on...