🏷️ Basic Information Identification Make: BMW Model: 5 Series Chassis Code: E34 Body Styles Covered: Saloon (Sedan) & Touring (Wagon/Estate) Covered Models: 525i, 530i, 535i, 540i Production Years Covered: 1989, 1990, 1991, 1992, 1993, 1994, 1995 Codes Engine Codes Common: M20 (some early 525i), M50 (525i, 530i), M60 (530i, 540i), M30 (535i) 👋 Introduction Market Position Era Significance: Represents BMW's entry into a more refined executive sedan segment, competing with Mercedes-Benz E-Class and Audi 100/A6. Target Audience: Enthusiasts, independent repair shops, and owners seeking detailed technical information for DIY maintenance and repairs. Competitive Analysis Key Competitors: Mercedes-Benz W124, Audi C3/C4, Jaguar XJ, Lexus LS (later in production run) Key Features Design Philosophy: Robust engineering, driver-focused ergonomics, advanced (for its time) technology, and superior build quality. Manual Value Proposition: Provides in-depth, authoritative guidance essential for maintaining the complexity and performance characteristics of BMW vehicles. 📋 Manual Details Coverage Areas Manual Type: Complete Workshop Service Repair Manual Language: English Format: Downloadable Page Count Estimated: 1000+ Scope: Comprehensive repair and maintenance 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine overhaul, internal components, timing, sealing systems Engine Management: Fuel injection, ignition system, DME (Digital Motor Electronics) operation, sensor diagnostics, emission controls Transmission Manual: Clutch, gearbox internal repair, shift linkage, maintenance Transmission Automatic: Hydraulic control, valve body, torque converter, electronic control, maintenance, overhaul procedures Drivetrain: Driveshafts, CV joints, differential, rear axle assembly Suspension: Front and rear suspension components, shock absorbers, struts, springs, bushings, alignment specifications Steering: Power steering system, steering rack, tie rods, steering column Brakes: Hydraulic system, ABS (Anti-lock Braking System) operation and diagnostics, brake pads, rotors, calipers, lines, bleeding procedures Electrical System: Wiring diagrams, battery, alternator, starter, fuses, relays, lighting systems, power windows, mirrors, central locking Bodywork: Body panel removal/installation, door mechanisms, hood, trunk, bumpers, interior trim HVAC: Heating, Ventilation, and Air Conditioning system components, troubleshooting, refrigerant handling (with caution) Fuel System: Fuel tank, fuel pump, fuel lines, fuel injectors, fuel pressure regulator Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection/replacement Diagnostic Procedures: Troubleshooting charts, symptom-based diagnosis, use of diagnostic tools (e.g., OBD-I codes relevant for the era) Repair Procedures: Step-by-step instructions for component replacement and repair across all systems Rebuild Procedures: Detailed instructions for engine and transmission rebuilds Specification Data: Torque specifications, clearances, alignment data, fluid capacities Wiring Diagrams: Complete, schematics for all electrical systems Technical Depth Depth Level: Expert/Professional Level Detail Level: Includes detailed exploded views, part identification, torque values, special tool requirements, and diagnostic flowcharts. Rebuilder Focus: Sufficient detail for engine and transmission rebuilding, including critical tolerances and assembly procedures. 📊 Manual Specifications File Format Digital Format Type: PDF (Portable Document Format) Searchability: Searchable text content for quick information retrieval Printability: Printable pages for use in a workshop environment Print Quality Image Resolution: High-resolution diagrams, illustrations, and photographs Binding Type Digital Binding: N/A (Digital Download) Paper Type Digital Paper Simulation: Simulates professional workshop manual paper quality with clear text and legible diagrams. ⚙️ Engine Specifications Primary Engine Engine Variants Covered: 2.5L Inline-6 (M50B25), 3.0L Inline-6 (M50B30 - often designated as 530i in some markets or M60B30 V8), 3.5L Inline-6 (M30B35), 4.0L V8 (M60B40) Engine Type: Inline 6-cylinder (I6) and V8 Performance 525I Horsepower Est: 189 hp @ 5,300 rpm (M50B25) 525I Torque Est: 245 Nm @ 4,200 rpm (M50B25) 530I Horsepower Est: 215 hp @ 5,800 rpm (M60B30 V8) / ~188 hp (M50B30 I6) 530I Torque Est: 290 Nm @ 4,500 rpm (M60B30 V8) / ~280 Nm (M50B30 I6) 535I Horsepower Est: 208 hp @ 5,700 rpm (M30B35) 535I Torque Est: 305 Nm @ 4,000 rpm (M30B35) 540I Horsepower Est: 282 hp @ 5,800 rpm (M60B40 V8) 540I Torque Est: 400 Nm @ 4,500 rpm (M60B40 V8) Fuel System Fuel Injection: Bosch Motronic electronic fuel injection (various versions depending on engine) Fuel Type: Unleaded Gasoline (Premium) 🔧 Transmission Standard 525I Standard: 5-speed manual (Getrag 260/5) 530I Standard: 5-speed manual (Getrag 260/5 or others depending on engine) 535I Standard: 5-speed manual (Getrag 260/5) 540I Standard: 5-speed manual (Getrag S5D 310Z) or 6-speed manual (Getrag S6-370Z, very rare) Optional 525I Optional: 4-speed automatic (ZF 4HP22) 530I Optional: 4-speed automatic (ZF 4HP22 or ZF 5HP18 for some later models) 535I Optional: 4-speed automatic (ZF 4HP22) 540I Optional: 4-speed automatic (ZF 4HP24) or 5-speed automatic (ZF 5HP30) Features Drivetrain: Rear-Wheel Drive (RWD) 📐 Dimensions Exterior Wheelbase Est: 2763 mm (108.8 in) Length Est Saloon: 4730 mm (186.2 in) Length Est Touring: 4770 mm (187.8 in) Width Est: 1751 mm (68.9 in) Height Est: 1410 mm (55.5 in) Saloon / 1440 mm (56.7 in) Touring Weights Curb Weight Est Range: 1550 kg - 1750 kg (3417 lbs - 3858 lbs) depending on model and equipment 🛡️ Safety Features Ratings Crash Test Era Standards: Meets or exceeds safety standards of its time. Detailed official ratings from...