Target Audience:
BMW E21 owners, independent repair shops, automotive enthusiasts
Value Proposition:
Provides dealer-level repair and maintenance information, empowering users to perform repairs themselves.
Differentiation:
Vehicle-specific, factory-quality data, unlike generic repair guides.
Centralization:
All necessary information in a single, easy-to-use PDF manual.
Convenience:
Printable pages for on-site use, eliminates need for physical manuals.
Models Covered:
All BMW 3 Series (E21) models for 1982
Repair Scope:
A-Z (All repairs)
Estimated Page Count:
Comprehensive (Exact count not specified, but implied to be extensive)
Type:
Factory Service and Repair Manual
File Compatibility:
Windows (Vista 32/64, XP, ME, 98, NT, 2000), Mac
Accessibility Requirements:
Adobe PDF Reader, Winzip (Free)
Powertrain:
Engine, Fuel Service Specifications, Emission Control, Intake, Exhaust, Cooling, Lube, Ignition, Starting, Charging, Auto Transmission, Clutch, Manual Transmission, Transfer Case, Propeller Shaft, Drive Shaft, Differential, Axle
Chassis:
Suspension, Tire & Wheel, Brake Control, Brakes, Parking Brake, Steering Column, Power Steering
Electrical Electronics:
Electrical System, Wiring Schematics, Multiplex/CAN Communication, Meter, Audio/Visual, Cruise Control, Engine Immobilizer, Suppl. Restraint System (SRS), Seat Belt, Horn
Body Interior:
Air Conditioning, Wiper & Washer, Door Lock, Windshield/Glass/Mirror, Instrument Panel, Seat, Engine Hood/Door, Exterior & Interior Trim
Maintenance:
Routine maintenance, fluid changes, filter replacements, lubrication
Diagnostics:
Troubleshooting guides, fault diagnosis, electrical system checks
Repair:
Step-by-step repair instructions for all major vehicle systems
Rebuild:
Complete rebuild procedures for engine, transmission, and other major components
Installation:
Installation procedures for various components and systems
Depth:
Factory-level detail, intended for technicians and experienced DIYers
Documentation Type:
Includes diagrams, illustrations, and wiring schematics
PDF Quality:
High resolution, allowing image blow-up for detailed viewing
Searchability:
Implied searchable text for easy navigation
Printability:
All pages printable for workshop use
Customization:
Ability to print only required pages and diagrams
Binding:
Digital (PDF) - eliminates physical wear and tear
Paper Type:
N/A (Digital format)
Engine Options 1982:
Likely includes variations of the M10 4-cylinder engine (e.g., 318i, 320i) and potentially the M20 6-cylinder engine (e.g., 323i).
Typical Power Output:
Varies by engine variant. For instance, the M10 2.0L (M20B20) typically produced around 105-125 hp, while the M20B23 (2.3L) could produce around 143 hp.
Typical Torque Output:
Varies by engine variant. M20B20 around 160-180 Nm, M20B23 around 190-210 Nm.
Fuel Delivery:
Likely features Bosch L-Jetronic or K-Jetronic fuel injection depending on the specific model and engine.
Fuel Type:
Unleaded gasoline
Cooling System:
Water-cooled, pressurized system with radiator, thermostat, and fan.
Oil Type:
Refer to manual for specific viscosity grades (e.g., 20W-50 or 10W-40 depending on climate).
Oil Capacity:
Typically around 4.5 - 5.5 liters depending on engine variant. Consult manual for precise capacity.
Transmission Type Standard:
4-speed manual transmission was common, with 5-speed manuals also available on certain models.
Transmission Type Optional:
3-speed or 4-speed ZF automatic transmission likely offered as an option.
Clutch System:
Hydraulically operated single-plate dry clutch.
Manual Transmission Fluid:
GL-4 gear oil, typically with viscosity of 75W-90 or 80W-90. Consult manual for precise specifications.
Automatic Transmission Fluid:
Dexron II or equivalent ATF. Consult manual for precise specifications.
Crash Safety:
E21 generation predates standardized modern crash testing (e.g., Euro NCAP, NHTSA). Safety features would have been basic by today's standards.
Active Safety:
Four-wheel disc brakes (front ventilated), power-assisted steering (optional), independent suspension for good handling.
Passive Safety:
Reinforced passenger cell, padded dashboard, optional seat belts (initially lap belts, later 3-point belts).
Audio System:
Basic AM/FM radio, potentially with cassette player. Aftermarket head units are common upgrades.
Driver Assistance Features:
Very limited by modern standards. Likely included power steering as an option.
Connectivity:
None by modern definition. Communication relied on mechanical and basic electrical systems.
Oil Change Interval:
Typically 5,000-7,500 miles (8,000-12,000 km) or 6-12 months, depending on driving conditions. Consult manual for exact intervals.
Spark Plug Replacement:
Around 20,000-30,000 miles (32,000-48,000 km) for standard plugs. Platinum or iridium plugs would have longer intervals if available/used.
Coolant Flush:
Every 2-3 years or as recommended by BMW. Consult manual.
Coolant:
Ethylene glycol based coolant, typically a 50/50 mix with distilled water. Refer to manual for specific BMW antifreeze type.
Brake Fluid:
DOT 3 or DOT 4 brake fluid. Consult manual for exact specification.
Common Wear Items:
Bushings (control arm, sway bar), fuel injectors (early models), fuel accumulator, door seals, heater control valves.
Electrical Issues:
Degradation of wiring insulation over time, fuse box issues, and connection corrosion can be encountered.
Engine Issues:
Oil leaks from gaskets and seals, timing chain wear (on M20 engines), and potential overheating issues if cooling system is not maintained.
Bmw Heritage:
BMW's reputation for sporty driving dynamics, engineering quality, and premium feel.
E21 Positioning:
The first generation of the BMW 3 Series, establishing the compact executive sports sedan segment. Replaced the BMW 02 Series.
E21 Design:
Designed by Paul Bracq, known for its clean lines and driver-oriented interior.
Production Years:
1975-1983
Production Location:
Mainly Germany
