🏷️ Basic Information Identification Make: BMW Model: 6 Series Model Variant: 633CSi / 635CSi / M6 Year: 1983 Codes Chassis Code: E24 👋 Introduction Market Position Segment: Luxury Grand Tourer (GT) Era: Classic European luxury sports coupe Competitive Analysis Competitors 1983: Mercedes-Benz SEC Coupe, Porsche 928, Jaguar XJ-S Key Features Design Philosophy: Blend of performance, luxury, and distinctive styling Engine Heritage: Utilizes BMW's robust and proven M30 'Big Six' engine Driving Dynamics: Renowned for balanced handling and powerful acceleration Manual Value Proposition: Provides OEM-level repair and maintenance data essential for preserving classic BMWs 📋 Manual Details Coverage Areas Engine Coverage: 3.2L Inline-6 (M30B32), 3.5L Inline-6 (M30B34) Transmission Coverage: 4-Speed Automatic, 5-Speed Manual Electrical Coverage: Full wiring diagrams, component locations, troubleshooting Bodywork Coverage: Exterior body panels, interior trim, glass, seals Suspension Coverage: Front MacPherson struts, rear semi-trailing arms, anti-roll bars Braking System Coverage: Front vented discs, rear solid discs, hydraulic systems Steering System Coverage: Recirculating ball steering, power steering system Page Count Estimated Pages: 1000+ Manual Type Type: Professional Workshop Service & Repair Manual Language Language: English Format File Format: PDF Compatibility: Windows & MAC compatible 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed engine disassembly, assembly, overhaul, timing, lubrication Engine Management: Bosch L-Jetronic fuel injection system, ignition system diagnostics Cooling System: Radiator, water pump, thermostat, hoses, fan Exhaust System: Exhaust manifolds, catalytic converter (if applicable), mufflers, pipes Fuel System: Fuel tank, fuel pump, fuel lines, injectors Drivetrain: Driveshaft, differential, CV joints Climate Control: HVAC system operation, components, and repair Instrumentation: Instrument cluster, gauges, warning lights Lighting System: Headlights, taillights, interior lights, wiring Accessory Systems: Power windows, mirrors, sunroof, central locking Procedures Included Routine Maintenance: Oil change, filter replacement, spark plug replacement, fluid checks Major Repairs: Engine rebuild, transmission overhaul, cylinder head repair Diagnostics: Troubleshooting guides, fault code interpretation (where applicable), component testing Adjustments: Valve clearance adjustment, throttle linkage adjustment, timing adjustments Special Tools: Identification and usage of BMW-specific tools Technical Depth Depth: Comprehensive factory-level diagnostics, repair, and maintenance procedures Detail Level: Step-by-step instructions with detailed diagrams and illustrations 📊 Manual Specifications File Format Quality: High-resolution scans, searchable text Searchability: Full text search capability within PDF Print Quality Printability: Printable pages for workshop use Binding Type Type: Digital Download (N/A for physical binding) Paper Type Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Type: Inline 6-cylinder, DOHC Displacement 633Csi: 3210 cc (3.2 Liters) Displacement 635Csi: 3430 cc (3.5 Liters) Bore Stroke 633Csi: 89.0 mm x 86.0 mm Bore Stroke 635Csi: 92.0 mm x 86.0 mm Performance Horsepower 633Csi: 197 hp @ 5500 rpm (approx.) Horsepower 635Csi: 218 hp @ 5200 rpm (approx.) Torque 635Csi: 333 Nm (245 lb-ft) @ 3500 rpm (approx.) Fuel System Injection System: Bosch L-Jetronic Electronic Fuel Injection Fuel Type: Premium Unleaded Gasoline (91+ RON / 87+ Octane) Engine Codes M30B32: Code for the 3.2L M30 engine M30B34: Code for the 3.5L M30 engine 🔧 Transmission Standard Type: 4-Speed ZF Automatic (e.g., 4HP22) Optional Type: 5-Speed Getrag Manual (e.g., 265) Features Automatic Modes: Sport and Economy modes (on some models) Fluid Specifications Automatic Transmission Fluid: Dexron III or equivalent (check manual for specific BMW spec) Manual Transmission Fluid: API GL-4 SAE 75W-90 or SAE 80W-90 gear oil (check manual for specific BMW spec) 📐 Dimensions Exterior Length: 4750 mm (approx.) Width: 1725 mm (approx.) Height: 1370 mm (approx.) Wheelbase: 2794 mm (approx.) Weights Curb Weight: 1500-1600 kg (approx.) 🛡️ Safety Features Ratings Era Specific Ratings: N/A (Modern rating systems not fully developed for this era) Active Features ABS: Anti-lock Braking System (standard on later models/options) Passive Features Seatbelts: 3-point front seatbelts Crumple Zones: Designed with energy-absorbing crumple zones Steering Column: Collapsible steering column 💡 Technology Features Infotainment Audio System: Period-correct cassette player, AM/FM radio, often with premium speaker options Driver Assistance Cruise Control: Available as an option Connectivity Era Appropriate: Limited to basic vehicle functions, no modern connectivity features 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000 - 7,500 miles or annually (refer to manual for exact recommendation) Spark Plug Replacement: Refer to manual; often around 15,000-30,000 miles depending on plug type Timing Belt Chain: M30 engines use a timing chain, requiring inspection but typically not replacement unless worn. Fluid Specifications Coolant Type: BMW Blue Antifreeze/Coolant or equivalent Brake Fluid: DOT 4 Power Steering Fluid: Dexron III or CHF 11S (check manual) Known Issues Common Problem 1: Rust (especially around wheel arches, sills, sunroof) Common Problem 2: Fuel distributor issues (Bosch K-Jetronic) Common Problem 3: Door seal deterioration Common Problem 4: Aging rubber hoses and bushings Torque Settings Engine Cylinder Head: Specific torque sequences and values provided in manual Wheel Lug Nuts: 150 Nm (111 lb-ft) (typical for BMW of this era) 📚 Vehicle History Brand Heritage Bmw Legacy: BMW's reputation for engineering excellence, performance, and luxury driving experience. Model Evolution E24 Generation: The 'Shark Nose'...