Target Audience:
BMW enthusiasts, independent repair shops, DIY mechanics specializing in classic BMWs
Value Proposition:
Provides detailed, manufacturer-level repair information for a specific and beloved BMW model, crucial for maintaining its value and performance.
Comprehensiveness:
Covers all major mechanical and electrical systems, offering a complete guide for servicing and repair.
Years Covered:
1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Estimated Pages:
Hundreds of pages (exact count not specified, implies comprehensive)
Type:
Complete Full Service Repair Manual
Engine:
Engine mechanical, lubrication, cooling, fuel injection (Bosch L-Jetronic/Motronic), ignition, exhaust
Transmission:
Manual and Automatic transmissions (removal, installation, overhaul, clutch, driveshafts)
Brakes:
Hydraulic system, front and rear disc brakes, ABS (if equipped), parking brake
Suspension Steering:
Front and rear suspension, shock absorbers, springs, control arms, power steering system
Electrical:
Battery, charging system, starting system, lighting, instrumentation, wiring diagrams, fuses, relays
Bodywork Chassis:
Body panel repair, doors, windows, seats, interior trim, bumpers
Climate Control:
Heating, ventilation, air conditioning (HVAC) system diagnosis and repair
Fuel System:
Fuel tank, fuel pump, fuel lines, fuel injectors, fuel pressure regulation
Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid checks, belt inspections
Troubleshooting:
Diagnostic charts for common problems, electrical system troubleshooting
Repair:
Step-by-step instructions for component removal, repair, and reinstallation
Overhaul:
Detailed procedures for engine and transmission overhauls
Calibration Adjustment:
Ignition timing, idle speed, fuel injection system adjustments
Engine Diagnostics:
Troubleshooting charts and specific diagnostic procedures for fuel injection and ignition systems.
Chassis Alignment:
Wheel alignment specifications and procedures.
Body Repair Data:
Information on panel replacement, welding, and repair of common body damage.
Wiring Diagrams:
Comprehensive electrical wiring diagrams for all systems.
Depth:
Comprehensive from basic maintenance to complete engine and transmission rebuilds, including electrical system diagnostics
File Type:
PDF (Portable Document Format)
Printability:
Designed for printing, allowing users to create a physical copy
Suggested Binding:
Spiral-bound or three-hole punched for easy page turning and reference
Recommended Paper:
Durable, high-quality paper to withstand workshop use
Engine Type:
Inline 6-cylinder, SOHC (Single Overhead Camshaft)
Displacement:
2.5 Liters (2494 cc)
Horsepower Est:
150-170 hp (depending on market and specific injection system)
Torque Est:
165-180 lb-ft (depending on market and specific injection system)
Injection System:
Bosch L-Jetronic or Motronic fuel injection
Fuel Type:
Unleaded gasoline
Ignition System:
Electronic ignition system with distributor
Wheelbase:
Approx. 2794 mm (110.0 inches)
Length:
Approx. 4755 mm (187.2 inches)
Width:
Approx. 1700 mm (66.9 inches)
Height:
Approx. 1420 mm (55.9 inches)
Curb Weight Est:
Approx. 1450-1550 kg (3197-3417 lbs)
Crash Test Era:
Pre-modern crash testing standards, but known for robust chassis construction
ABS:
Anti-lock Braking System (ABS) optional or standard on later models
Braking System:
Four-wheel disc brakes (vented front, solid rear)
Seatbelts:
Three-point seat belts
Body Structure:
Reinforced passenger cell
Radio:
Factory AM/FM radio with cassette player, optional premium sound systems
Climate Control:
Manual climate control, optional automatic climate control (ECC - Electronic Climate Control) on some models.
ABS:
Anti-lock Braking System was an advanced feature for its time.
Onboard Computer:
Optional 'Check Control' system for monitoring fluid levels and basic system status.
Oil Change:
Typically every 5,000-7,500 miles or 6-12 months, depending on driving conditions.
Coolant Flush:
Every 2 years or 30,000 miles
Spark Plugs:
Refer to manual; typically every 30,000-60,000 miles for standard plugs.
Engine Oil:
Refer to manual, typically 20W-50 or 10W-40 for this era, API SG or higher
Coolant:
Ethylene glycol-based coolant, typically 50/50 mix with distilled water
Transmission Fluid Manual:
GL-4 gear oil (e.g., 75W-90 or 80W-90)
Transmission Fluid Automatic:
Dexron II or equivalent ATF
Brake Fluid:
DOT 3 or DOT 4 brake fluid
Engine Oil Leaks:
Common due to age of seals and gaskets (e.g., valve cover, oil pan, rear main seal)
Cooling System:
Radiator, hoses, and water pump can degrade over time. Overheating can occur.
Electrical Gremlins:
Corrosion in connectors, aging wiring, and failing relays can cause intermittent issues.
Rust:
Common areas include wheel arches, rocker panels, and trunk floor due to age and climate.
Fuel Injection System:
Faulty airflow meter, fuel injectors, or fuel pump can affect performance.
Bmw Philosophy:
BMW's reputation for engineering excellence, performance, and driver engagement.
E28 Introduction:
The E28 generation replaced the E12 and was produced from 1981 to 1988. Known for its updated styling and improved aerodynamics.
Production Period:
1981-1988
Manufacturing Locations:
Germany (Dingolfing, Munich), South Africa, Mexico, Thailand
