Positioning:
Essential tool for owners and enthusiasts of the BMW E21 3 Series seeking to perform their own maintenance and repairs.
Advantage:
Provides factory-level information, saving significant labor costs compared to professional shop rates.
Authenticity:
Actual Genuine Factory Repair Manual, not third-party.
Completeness:
Covers all aspects of repair and maintenance for the specified model range.
Accessibility:
Digital download format allows for immediate access and on-demand printing.
Applicable Years:
1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984
Estimated Pages:
Hundreds (exact number not specified, but described as comprehensive)
Type:
Factory Service Repair Manual
Format:
PDF (Downloadable)
Engine Service Repair:
Detailed procedures for engine maintenance, overhaul, and repair.
Transmission Service Repair:
Covers manual and automatic transmission service, including repairs and adjustments.
Brake System:
Includes maintenance, troubleshooting, and repair of hydraulic and mechanical brake components.
Wiring Diagrams:
Comprehensive electrical system diagrams for accurate diagnosis and repair.
Electrical System:
Detailed coverage of all electrical components, circuits, and troubleshooting.
Suspension:
Maintenance and repair of front and rear suspension systems.
Periodic Lubrication:
Specific lubrication points and schedules for optimal vehicle longevity.
Steering:
Service and repair procedures for the steering system.
Cooling System:
Maintenance, repair, and troubleshooting of the radiator, water pump, and thermostat.
Fuel Injection Fuel System:
Detailed coverage of fuel delivery, injection systems (e.g., Bosch L-Jetronic), and components.
Emission System:
Information on emission control components and servicing for compliance.
Heater Air Conditional:
Service and repair of HVAC systems.
Engine Control System:
Diagnosis and repair of engine management and control units.
Chassis Body:
Bodywork repair, structural integrity, and chassis component service.
Restraint System:
Information on seat belts and passive safety features.
Interior:
Service and repair related to interior trim and components.
Differential Drive:
Service and repair of the drivetrain and differential.
Axle:
Maintenance and repair of front and rear axles.
General Maintenance:
Routine service tasks and inspections.
Troubleshooting:
Advanced guide for diagnosing and correcting problems across all systems.
Maintenance:
Oil changes, filter replacements, fluid checks, tune-ups, lubrication, spark plug replacement.
Troubleshooting:
Diagnostic procedures for engine performance, electrical faults, brake issues, etc.
Repair:
Complete step-by-step repair instructions for all major vehicle systems.
Rebuild:
Detailed procedures for engine and transmission overhauls.
Refurbish Restore:
Guidance for restoring components and the overall vehicle.
Tuning:
Procedures for engine tuning and optimization.
Depth:
Comprehensive, covering everything from basic maintenance to advanced diagnostics and complete rebuilds.
Data Type:
Official factory specifications, procedures, diagrams, and illustrations.
Compatibility:
Windows and Mac operating systems.
Storage:
Can be saved to hard drive or burned to CD-ROM.
Printability:
Printable without restriction (individual pages or entire manual).
Resolution:
High resolution.
Binding:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Navigation:
Easy to use, with numbered table of contents and search functionality.
Instructions:
Numbered instructions, detailed substeps, notes, cautions, and warnings.
Illustrations:
Detailed illustrations, drawings, photos, and enlarged inset diagrams.
Engine Family:
BMW M10 (4-cylinder) and M20 (6-cylinder)
Common Engines:
316 (M10 1.6L), 318 (M10 1.8L), 320/4 (M10 2.0L), 320i (M10 2.0L fuel injection), 323i (M20 2.3L fuel injection)
Horsepower Range:
Approximately 75 hp (316) to 143 hp (323i)
Torque Range:
Varies by engine, typically 120 Nm to 190 Nm.
Carbureted Models:
Solex or Pierburg carburetors on lower-end models.
Fuel Injection Models:
Bosch L-Jetronic or K-Jetronic fuel injection for improved performance and efficiency.
Oil Change:
Typically every 5,000-10,000 km or annually, depending on driving conditions.
Tune Up:
Spark plug replacement, ignition timing adjustment, carburetor adjustment as needed.
Engine Oil:
API SG/SH or SAE 20W-50/15W-40 (check manual for specific viscosity based on temperature).
Coolant:
50/50 mixture of ethylene glycol-based antifreeze and distilled water.
Brake Fluid:
DOT 3 or DOT 4 brake fluid.
Transmission Fluid Manual:
SAE 75W-90 or 80W-90 GL-4 gear oil.
Transmission Fluid Automatic:
Dexron III or equivalent ATF.
Differential Fluid:
SAE 90 GL-5 gear oil.
Rust:
Prone to rust, particularly in wheel arches, rocker panels, and around windows.
Cooling System:
Overheating due to aging radiator, hoses, or water pump.
Electrical Gremlins:
Aging wiring harnesses and connections can lead to intermittent electrical faults.
Fuel System:
Clogged fuel injectors or fuel pump issues in fuel-injected models.
