Engine Mechanical:
Disassembly, inspection, assembly of engine components (pistons, rings, bearings, valves, camshafts, crankshaft, cylinder head, block)
Engine Management:
Fuel injection system (Bosch Motronic), ignition system, emissions control systems, sensor diagnostics
Transmission Manual:
Clutch, gearbox disassembly, inspection, assembly, shift mechanism
Transmission Automatic:
Transmission operation, hydraulic control, valve body, torque converter, cooling, service procedures
Drivetrain:
Driveshafts, differential, axle shafts, universal joints
Brakes:
Front and rear disc brakes, brake hydraulics, ABS (if equipped), parking brake
Steering:
Power steering system, steering gear, steering column, tie rods
Suspension:
Front struts, rear shock absorbers, control arms, bushings, sway bars, wheel bearings
Electrical System:
Battery, charging system (alternator), starting system (starter), lighting, wipers, horn, power windows, central locking, instrument cluster
Body And Chassis:
Body panel removal and installation, door mechanisms, hood, trunk, bumpers, glass, underbody protection
HVAC:
Heater core, blower motor, ventilation system, air conditioning (if equipped), refrigerant handling
Fuel System:
Fuel tank, fuel pump, fuel filter, fuel lines, fuel injectors
Cooling System:
Radiator, coolant hoses, thermostat, water pump, cooling fan
Routine Maintenance:
Oil change, filter replacement, fluid checks and top-offs, spark plug replacement, belt inspection and replacement
Diagnostic Procedures:
Troubleshooting common symptoms, diagnostic charts, identification of faulty components
Repair Procedures:
Step-by-step instructions for component removal, repair, and reinstallation for all covered systems
Adjustment Procedures:
Valve adjustment, idle speed adjustment, brake adjustment (if applicable)
Replacement Procedures:
Replacement of wear items such as gaskets, seals, hoses, belts, brake pads, shock absorbers
Engine Rebuild:
Detailed instructions for complete engine overhaul
Transmission Overhaul:
Detailed instructions for complete transmission rebuild
Electrical Troubleshooting:
Use of multimeters, reading wiring diagrams, tracing electrical faults
Depth:
Factory-level diagnostics, repair, and maintenance procedures for all major vehicle systems.
Oil Change Interval:
Every 5,000 - 7,500 miles or 6-12 months, depending on driving conditions and oil used.
Air Filter Replacement:
Every 15,000 - 30,000 miles
Spark Plug Replacement:
Every 30,000 - 60,000 miles (depending on plug type)
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles
Engine Oil Type:
API SG or SH, SAE 10W-30 or 10W-40 recommended (check manual for exact specifications)
Engine Oil Capacity:
6.5 Liters (with filter change)
Coolant Type:
Ethylene glycol-based antifreeze (BMW Blue or equivalent)
Brake Fluid Type:
DOT 3 or DOT 4
Power Steering Fluid:
ATF Dexron II (or equivalent)
Manual Transmission Fluid:
API GL-4 SAE 75W-90 or 80W-90
Automatic Transmission Fluid:
ATF Dexron II (or equivalent)
Heater Core Leaks:
Common issue due to age and material degradation, often leading to coolant smell inside the cabin.
Cracked Dashboard:
UV exposure can cause dashboards to crack over time.
Idle Control Valve:
Can become clogged or fail, leading to rough idle or stalling.
Fuel Injector Clogging:
Can affect performance and fuel economy, especially with fuel quality variations.
Suspension Bushings:
Wear and tear on control arm bushings and sway bar links can lead to sloppy handling and noise.
Oil Leaks:
Valve cover gaskets, oil pan gaskets, and rear main seals can leak with age.
Electrical Connectors:
Corrosion or looseness in electrical connectors can cause intermittent issues.
Brand Legacy:
BMW, Bayerische Motoren Werke AG, known for 'The Ultimate Driving Machine' ethos and motorsport success.
E28 Introduction:
The E28 was the second generation of the 5 Series, succeeding the E12. Introduced in 1981.
E28 Significance:
The E28 introduced a more modern and aerodynamic design, advanced fuel injection, and the availability of ABS and a diesel engine option in some markets.
E28 Updates:
Received minor updates throughout its production run, including styling tweaks and powertrain enhancements.
Production Period:
1981-1988
Manufacturing Locations:
Primary manufacturing in Dingolfing, Germany. CKD assembly in various international locations.