Engine Mechanical:
Complete engine overhaul, cylinder head, block assembly, pistons, crankshaft, camshafts, timing system, lubrication system, cooling system.
Fuel System:
Fuel injection system (Bosch L-Jetronic/Motronic depending on year/market), fuel pump, injectors, fuel lines, fuel tank, fuel pressure regulation.
Ignition System:
Distributor, ignition coils, spark plugs, electronic ignition control.
Transmission Manual:
Clutch operation, gearshift mechanism, gearbox internal components, torque specifications.
Transmission Automatic:
Hydraulic control, torque converter, planetary gearsets, shift solenoids, valve body, fluid specifications, adjustments.
Drivetrain:
Driveshafts, universal joints, differential, axle shafts, wheel bearings.
Suspension Front:
MacPherson struts, control arms, ball joints, bushings, springs, shock absorbers, steering knuckle.
Suspension Rear:
Semi-trailing arms, independent suspension, bushings, shock absorbers, springs, anti-roll bars.
Steering System:
Power steering pump, steering rack, tie rods, steering column, steering wheel.
Braking System:
Front disc brakes, rear disc brakes (all models), brake calipers, rotors, pads, master cylinder, brake lines, parking brake.
Electrical System:
Battery, alternator, starter motor, lighting system, wiring diagrams, fuses, relays, dashboard instruments, sensors.
Climate Control:
HVAC system, heater core, blower motor, air conditioning compressor, refrigerant, controls, ductwork.
Body And Chassis:
Body panel removal/installation, door mechanisms, glass, interior trim, structural components.
Maintenance:
Routine maintenance, oil changes, filter replacements, fluid level checks, tune-ups, belt replacement.
Repair:
Component-level repair and replacement for all covered systems.
Troubleshooting:
Diagnostic procedures, fault finding, common problem identification and solutions.
Diagnostics:
On-board diagnostics (OBD) interpretation (early forms), test procedures for various sensors and actuators.
Specifications:
Detailed torque specifications, clearances, tolerances, and fluid capacities.
Depth:
Comprehensive. Covers everything from basic maintenance to full engine and transmission rebuilds. Suitable for professional mechanics and experienced DIY enthusiasts.
Engine Code Typical:
M30 (e.g., M30B34 for 535i, but 528i typically used M30B28/M30B28LE)
Engine Type:
Inline-6, SOHC (Single Overhead Camshaft)
Displacement Liters:
2.8 liters (approx. 2788 cc)
Bore X Stroke Mm:
84.0 mm x 81.0 mm (typical for M30B28)
Horsepower Ps Approx:
184 PS @ 5800 rpm (for M30B28LE - European Spec, US Spec may vary slightly)
Torque Nm Approx:
240 Nm @ 3500 rpm (for M30B28LE - European Spec)
Fuel Delivery:
Bosch L-Jetronic or Motronic electronic fuel injection
Recommended Fuel Octane:
Premium Unleaded (91 RON or higher)
Ignition Type:
Electronic ignition with distributor
Oil Capacity Liters:
6.5 liters (with filter change)
Coolant Capacity Liters:
9.5 liters
Transmission Type Standard:
4-speed manual (Getrag 260/5 or similar) - often standard on 528e (eta engine), 528i likely had 5-speed as standard in many markets.
Transmission Type Optional:
ZF 4HP22 4-speed automatic transmission
Clutch Type:
Hydraulically operated single dry plate clutch
Automatic Transmission Fluid:
Dexron-III (or equivalent specifications for ZF transmissions of this era, consult manual for exact BMW spec)
Automatic Transmission Fluid Capacity:
Approx. 8-10 liters (depending on torque converter fill)
Oil Change Interval:
Typically every 5,000-10,000 miles or 12 months, whichever comes first (consult manual for specific conditions).
Spark Plug Replacement:
Every 30,000 miles (recommendation for standard plugs, platinum/iridium may differ).
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles.
Transmission Fluid Change:
Manual: Inspect as needed. Automatic: Typically 40,000-60,000 miles or as per manual.
Engine Oil Grade:
10W-40 or 15W-40 API SG/SF (Consult manual for specific BMW approval and viscosity for climate)
Coolant Type:
Ethylene glycol based antifreeze with corrosion inhibitors (BMW approved, typically blue or green in color)
Power Steering Fluid:
BMW approved hydraulic fluid (e.g., Pentosin CHF 11S or similar for specific systems, consult manual)
Engine M30 Common Issues:
Head gasket leaks, oil pan gasket leaks, timing chain guides, fuel injector seal leaks, distributor O-ring leaks.
Suspension Common Issues:
Worn bushings (control arm, trailing arm), ball joint wear, shock absorber fatigue, sway bar link end wear.
Electrical Common Issues:
Corroded grounds, failing alternator, starter motor wear, aging wiring harnesses, dashboard warning light malfunctions.
Cooling System Common Issues:
Leaking radiator hoses, failing water pump, clogged heater core, expansion tank leaks.
Rust Prone Areas:
Wheel arches, rocker panels, battery tray area, jacking points, rear valence.