🏷️ Basic Information Identification Make: BMW Model: 528i Model Variant: 528 Year: 1988 Codes Chassis Code: E28 Engine Code Typical: M30B28 👋 Introduction Market Position Positioning: Premium mid-size luxury sedan, known for driving dynamics and build quality. Competitive Analysis Competitors: Mercedes-Benz W124 E-Class, Audi 100/200, Jaguar XJ, Volvo 740/760. Key Features Vehicle Appeal: Performance, handling, build quality, driver-oriented cockpit, refined interior. Manual Value Proposition Value: Essential for owners and independent mechanics to maintain and repair the vehicle accurately, preserving its performance and longevity. Offers cost savings over dealership servicing. 📋 Manual Details Coverage Areas Primary Coverage: Full Factory Service Repair Scope: All mechanical and electrical systems Page Count Estimated Pages: Hundreds (specific count not provided in product info, but implied by 'hundreds of pages') Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, component testing, lubrication, cooling system, fuel system, exhaust system Engine Management: Ignition system, fuel injection (Bosch Motronic), sensor diagnostics, emission controls Transmission Manual: Repair, overhaul, clutch service, driveshafts, differential Transmission Automatic: Repair, overhaul, fluid service, torque converter Brakes: Hydraulic system, ABS (Anti-lock Braking System) if equipped, caliper/rotor service, parking brake Suspension: Front and rear suspension components, shock absorbers, springs, bushings, wheel alignment Steering: Power steering system, steering gear, tie rods, steering column Electrical System: Wiring diagrams, battery, charging system (alternator), starting system (starter), lighting, instrumentation, power accessories Body And Chassis: Body panels, doors, windows, interior trim, chassis structural components, corrosion protection Climate Control: HVAC system, A/C operation, heater core, blower motor Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, tune-ups Troubleshooting: Diagnostic procedures for common and uncommon faults, symptom-based troubleshooting guides Repair: Step-by-step repair instructions for all major components and systems Rebuilds: Detailed procedures for engine and transmission rebuilds Diagnostics: Fault code interpretation (if applicable to the era/system), diagnostic connector locations, component testing procedures Technical Depth Depth: Comprehensive: Covers everything from basic fluid changes to full engine and transmission overhauls, including detailed electrical schematics and component-level diagnostics. 📊 Manual Specifications File Format Format: PDF Searchability: Likely text-searchable (standard for most factory PDF manuals) Print Quality Quality: High (assumed for factory service manuals, allowing for clear diagrams and text) Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Inline-6 Cylinder (M30) Displacement: 2.8 Liters (2788 cc) Bore X Stroke: 86.0 mm x 80.0 mm Compression Ratio: 8.0:1 (typical for M30B28) Performance Horsepower: 170 hp @ 5800 rpm (approximate) Torque: 177 lb-ft @ 3500 rpm (approximate) Fuel System Fuel Delivery: Bosch Motronic Fuel Injection (LE-Jetronic or L-Jetronic variants depending on specific market and production date) Fuel Type: Unleaded Gasoline (Octane rating as specified by BMW, typically premium) Engine Management Ignition System: Electronic Ignition (Bosch) 🔧 Transmission Standard Type: 4-speed Manual (Getrag 260/5) Optional Type: 4-speed Automatic (ZF 4HP22) Features Manual Ratios: Refer to manual for specific gear ratios Automatic Features: Sport and Economy modes (on some variants) Fluid Type Manual Transmission Fluid: BMW ATF (or equivalent API GL-4, SAE 75W-90 for manual transmission, check manual for exact spec) Automatic Transmission Fluid: Dexron II or equivalent ATF 📐 Dimensions Exterior Length: 4620 mm (181.9 in) Width: 1700 mm (66.9 in) Height: 1415 mm (55.7 in) Wheelbase: 2770 mm (109.1 in) Weights Curb Weight: 1400-1500 kg (approximate, depending on transmission and options) 🛡️ Safety Features Ratings Crash Testing: Limited official modern ratings available; known for robust chassis construction for its era. Active Features ABS: Optional Anti-lock Braking System (ABS) on some models. Passive Features Airbags: Driver's side airbag typically standard or optional on later 1988 models; passenger airbag not commonly available. Seatbelts: Three-point front seatbelts, two-point rear seatbelts (or optional three-point). Structural Integrity: Reinforced safety cage, crumple zones. 💡 Technology Features Infotainment Audio System: BMW Bavaria or similar premium cassette radio with AM/FM tuner, potentially with Nakamichi or other aftermarket upgrades common. Climate Control: Manual or automatic climate control systems (depending on trim). Driver Assistance Cruise Control: Standard on most models. ABS: Optional Anti-lock Braking System (ABS). 🔧 Maintenance Service Intervals Oil Change: Every 5,000-7,500 miles or 6-12 months (refer to manual for specific conditions). Air Filter: Inspect every 10,000 miles, replace as needed (or every 20,000-30,000 miles). Spark Plugs: Replace approximately every 20,000-30,000 miles, depending on plug type. Timing Belt: N/A (M30 engine is a chain-driven OHC design, requires periodic tensioner checks). Fluid Specifications Engine Oil: API SG/SH, SAE 15W-40 or 20W-50 (check manual for ambient temperature suitability and specific BMW approval). Coolant: BMW coolant or a 50/50 mix of ethylene glycol and distilled water. Brake Fluid: DOT 4 Known Issues Engine: Head gasket leaks, oil pan gasket leaks, valve stem seals (leading to blue smoke on startup), injector seal leaks, fuel pump issues. Cooling System: Radiator leaks,...