🏷️ Basic Information Identification Make: BMW Model: 635CSi Series: E24 Year: 1986 Codes Chassis Code: E24 Engine Code Family: M30 📋 Manual Details Coverage Areas Title: Electronic Troubleshooting Manual Topics: General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection, Fuel System, Emission System, Heater/Air Conditioner, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle Page Count Description: Hundreds or thousands of pages printable Manual Type Type: Factory Service Repair Manual Language Language: English Format File Format: PDF Compatibility: All Versions of Windows & Mac Requirements Software: Adobe PDF Reader & WinZip ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder Displacement: 3.5 Liters (3430 cc) Aspiration: Naturally Aspirated Bore X Stroke: 92 mm x 86 mm Compression Ratio: 8.0:1 or 8.5:1 (depending on market/tune) Performance Horsepower: Approx. 182-200 hp @ 5500 rpm (market dependent) Torque: Approx. 224-235 lb-ft @ 3500-4000 rpm (market dependent) Fuel System Fuel Delivery: Bosch L-Jetronic Fuel Injection Fuel Type: Unleaded Gasoline 🔧 Transmission Standard Type: 4-speed Automatic (ZF 4HP22) Optional Type: 5-speed Manual (Getrag 265) Features Drive Type: Rear-Wheel Drive 📐 Dimensions Exterior Length: 4705 mm (185.2 in) Width: 1798 mm (70.8 in) Height: 1380 mm (54.3 in) Wheelbase: 2776 mm (109.3 in) Weights Curb Weight: Approx. 1650-1750 kg (3638-3858 lbs) 🛡️ Safety Features Features Brakes: Front and rear disc brakes (ventilated front) ABS: Anti-lock Braking System (ABS) often standard or optional Restraint System: Seat belts (front and rear), optional airbags (less common for this year) Lighting: Halogen headlights, front and rear parking lamps, turn signals 🔧 Maintenance Service Intervals Oil Change: Refer to manual (typically 5,000-7,500 miles or 6-12 months) Spark Plugs: Refer to manual (e.g., 20,000-30,000 miles) Fluid Specifications Engine Oil Type: API SG or higher, SAE 20W-50 or 10W-40 (depending on climate) Coolant: BMW Blue Antifreeze/Coolant Brake Fluid: DOT 3 or DOT 4 Transmission Fluid Auto: Dexron III or equivalent Transmission Fluid Manual: SAE 75W-90 or 80W-90 GL-5 Gear Oil Differential Fluid: SAE 75W-90 or 80W-90 GL-5 Gear Oil