Target Audience:
BMW E28 owners, independent repair shops, DIY mechanics specializing in classic European vehicles.
Manual Value Proposition:
Provides essential factory-level repair information for a classic BMW model, crucial for maintaining originality and function.
Historical Importance:
The E28 platform represented a significant evolution in BMW's mid-size luxury sedan offering, and this manual covers its entry-level variants.
Diy Enablement:
Empowers owners to perform complex repairs and maintenance, saving costs and preserving the vehicle's value.
Engine Mechanical:
Engine disassembly, assembly, component inspection, tuning, diagnostics, cooling system, lubrication system.
Fuel System:
Fuel injection (Bosch L-Jetronic on 518i), fuel pump, fuel injectors, fuel pressure regulator, fuel tank, lines.
Ignition System:
Spark plugs, ignition coils, distributor, ignition timing, electronic control unit (ECU) if applicable.
Transmission:
Manual and automatic transmission overhaul, clutch service, gearshift linkage, torque converter (automatic).
Drivetrain:
Driveshaft, universal joints, differential, rear axle.
Suspension:
Front and rear suspension components, shock absorbers, springs, control arms, anti-roll bars, bushings, wheel alignment.
Steering:
Steering rack, power steering system (if equipped), steering column, tie rods.
Brakes:
Front and rear brake systems (disc/drum configurations), brake calipers, master cylinder, brake lines, parking brake, ABS (if equipped).
Electrical System:
Wiring diagrams, battery, alternator, starter motor, lighting systems, power windows, central locking, fuse box.
Body And Chassis:
Body panel removal and installation, door mechanisms, interior trim, glass replacement, chassis lubrication.
HVAC:
Heating, ventilation, and air conditioning (HVAC) system components, controls, refrigerant, blower motor.
Preventative Maintenance:
Oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspections and replacement.
Diagnostic Procedures:
Troubleshooting guides for common problems, symptom-based diagnostics, electrical system testing.
Repair Procedures:
Step-by-step instructions for component removal, repair, and reinstallation for all major vehicle systems.
Overhaul Procedures:
Detailed instructions for complete engine and transmission overhauls.
Calibration And Adjustment:
Ignition timing adjustment, carburetor adjustments (if applicable for early 518 models), valve adjustments.
Depth Level:
Comprehensive: Covers everything from routine maintenance to complete engine and transmission rebuilds.
Diagnostic Capabilities:
Advanced, including wiring diagrams and electrical system troubleshooting.
Component Level Detail:
Detailed specifications for individual components, tolerances, and wear limits.
Engine Type 518:
Inline 4-cylinder, naturally aspirated
Engine Type 518I:
Inline 4-cylinder, naturally aspirated, fuel-injected
Displacement Cc:
1766 cc (for M10B18)
Horsepower 518 Approx:
90 hp @ 5500 rpm
Torque 518 Approx:
140 Nm (103 lb-ft) @ 3000 rpm
Horsepower 518I Approx:
95 hp @ 5500 rpm
Torque 518I Approx:
142 Nm (105 lb-ft) @ 3000 rpm
Fuel Delivery 518:
Carbureted (e.g., Solex or Pierburg)
Fuel Delivery 518I:
Bosch L-Jetronic Fuel Injection
Fuel Type:
Unleaded gasoline (RON 95 / Unleaded 91)
Oil Change Interval:
Every 5,000 - 10,000 km or 6-12 months, depending on driving conditions and oil used.
Spark Plug Replacement:
Typically every 20,000 - 30,000 km (check manual for specific plug type recommendations).
Timing Belt Chain:
M10B18 uses a timing chain, requiring inspection for stretch and tension, not a periodic replacement like a belt.
Engine Oil Type:
SAE 15W-40 or 20W-50 (API SF/SG rated, refer to manual for exact BMW approval).
Coolant Type:
Ethylene glycol based coolant (BMW blue or compatible green/yellow).
Transmission Fluid Manual:
GL-4 Gear Oil (e.g., SAE 75W-90 or 80W-90)
Transmission Fluid Automatic:
Dexron-III (or equivalent ATF, check BMW specifications)
Common Wear Items:
Bushings (suspension, sway bars), exhaust system (rust), fuel injectors (clogging on 518i), fuel pumps, cooling system hoses.
Electrical Gremlins:
Age-related issues with wiring harnesses, connectors, and relays are common in older vehicles.
Rust Prone Areas:
Wheel wells, rocker panels, battery tray, rear parcel shelf.
Bmw Philosophy:
BMW's commitment to 'The Ultimate Driving Machine' ethos, focusing on sporty handling and engineering.
E28 Introduction:
Introduced in 1981 as the successor to the E12 5 Series, built upon its predecessor's success with improved aerodynamics and technology.
518 518I Positioning:
Represented the entry-level models of the E28 range, offering BMW quality and driving dynamics at a more accessible price point.
Production Years:
1981-1988 (for E28 platform), with 518/518i primarily in the earlier years of this range.
Manufacturing Locations:
Germany (Dingolfing plant being primary)
