Engine Mechanical:
Complete disassembly, assembly, tuning, timing, lubrication, cooling systems
Engine Fuel System:
Bosch L-Jetronic fuel injection, fuel pump, injectors, pressure regulator, fuel filter
Ignition System:
Electronic ignition, distributor, coil, spark plugs, wiring
Transmission Manual:
Getrag 265 5-speed: Clutch, gearbox, linkages, fluid
Transmission Automatic:
ZF 4HP22 4-speed: Torque converter, valve body, planetary gears, cooler, fluid
Drivetrain:
Driveshaft, U-joints, rear axle, differential, half-shafts
Suspension:
Front MacPherson struts, rear semi-trailing arms, bushings, shocks, springs, sway bars
Steering:
Power steering system, pump, rack and pinion, tie rods, steering column
Brakes:
Front vented discs, rear solid discs, calipers, master cylinder, ABS (optional), brake fluid
Electrical System:
Battery, alternator, starter, fuse box, relays, wiring diagrams, lighting
Climate Control:
HVAC system, blower motor, heater core, A/C compressor, refrigerant lines
Body And Trim:
Body panels, doors, hood, trunk, bumpers, interior trim, glass
Body Electrical:
Power windows, locks, mirrors, instruments, wipers
Diagnostic Tools:
Diagnostic procedures for EFI and other systems
Routine Maintenance:
Oil changes, filter replacements, fluid checks, tune-ups
Component Replacement:
Spark plugs, belts, hoses, water pump, thermostat, battery
Engine Rebuild:
Pistons, rings, bearings, seals, gasket replacement
Transmission Overhaul:
Complete rebuild for both manual and automatic transmissions
Brake Service:
Pad/shoe replacement, rotor/drum resurfacing/replacement, caliper overhaul, bleeding
Suspension Repair:
Strut/shock replacement, bushing replacement, alignment procedures
Electrical Troubleshooting:
Using wiring diagrams, testing circuits, diagnosing faults
Fuel Injection Diagnosis:
Testing injectors, sensors, ECU, fuel pressure issues
Bodywork Repair:
Panel alignment, dent repair, rust treatment (likely descriptive)
Depth:
Expert level: covers full rebuilds, complex diagnostics, and in-depth system analysis
Diagnostic Codes:
Likely includes information on reading basic diagnostic codes for the L-Jetronic system
Specifications:
Detailed torque values, clearances, tolerances, fluid capacities, pressure readings
Engine Type:
Naturally Aspirated Inline-6 (SOHC)
Displacement:
3.430 cc (3.4 Liters)
Bore X Stroke:
92.0 mm x 86.0 mm
Horsepower:
182 hp @ 5,500 rpm (approx.)
Torque:
220 lb-ft @ 3,250 rpm (approx.)
Fuel Delivery:
Bosch L-Jetronic Electronic Fuel Injection
Fuel Type:
Premium Unleaded Gasoline (91+ Octane)
Coolant Type:
BMW Premium Antifreeze (Blue) or equivalent, mixed 50/50 with distilled water
Oil Capacity With Filter:
6.5 Liters (6.9 US Quarts)
Recommended Oil Viscosity:
SAE 15W-50 or 20W-50 (check owner's manual for regional variations and temperature charts)
Oil Change Interval:
Every 7,500-10,000 miles or 12 months (using quality synthetic oil, consult manual for specifics)
Air Filter Replacement:
Every 15,000-30,000 miles or as needed based on driving conditions
Spark Plug Replacement:
Every 30,000 miles (depending on plug type)
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles
Timing Belt Replacement:
Not applicable, M30 engine uses a timing chain with a very long service life, but tensioner and guides may require periodic inspection/replacement
Brake Fluid Type:
DOT 3 or DOT 4 (ensure it's dry and fresh)
Power Steering Fluid:
ATF (Automatic Transmission Fluid) or Pentosin CHF 11S (verify exact spec for E28 power steering system)
Fuel Injector Leaks:
O-rings can degrade over time, leading to fuel leaks
Water Pump Leaks:
Common wear item, bearing failure or gasket leaks
Rubber Bushings:
Control arm bushings, sway bar bushings, and suspension bushings degrade with age and mileage
Rear Main Seal:
Can develop oil leaks over time
Cluster Illumination:
Instrument cluster warning lights and illumination can fail due to faulty resistors or bulbs
Efi Component Reliability:
Older EFI components like the airflow meter or idle control valve can become problematic