Engine Mechanical:
Detailed inspection, overhaul, tuning, troubleshooting
Engine Management Electronic:
Fuel injection systems (Bosch Motronic), ignition systems, sensor diagnostics
Transmission Manual:
Clutch, gearbox overhaul, shift mechanisms, driveshafts
Transmission Automatic:
Hydraulic control, torque converter, valve body, overhaul procedures
Suspension Front:
MacPherson struts, control arms, ball joints, bushings, shock absorbers
Suspension Rear:
Independent rear suspension (E34), semi-trailing arms (E28), shock absorbers, springs
Steering:
Power steering system, steering rack/box, tie rods, wheel alignment
Brakes Front:
Disc brake inspection, pad replacement, caliper overhaul, rotor resurfacing/replacement
Brakes Rear:
Disc brake inspection, pad replacement, caliper overhaul, rotor resurfacing/replacement
Brakes ABS:
ABS system components, sensor diagnostics, hydraulic unit troubleshooting
Electrical System 12V:
Battery, charging system (alternator), starter motor, fuses, relays
Lighting System:
Headlights, taillights, interior lighting, bulb replacement
Instrument Cluster:
Gauges, warning lights, speedometer, tachometer troubleshooting
Climate Control:
HVAC system, blower motor, heater core, A/C system components and service
Body Interior:
Upholstery, trim panels, door mechanisms, window regulators, seat adjustments
Body Exterior:
Body panel alignment, rust repair, trim removal, bumper service
Fuel System:
Fuel tank, fuel pump, fuel lines, fuel filter replacement, injectors
Exhaust System:
Exhaust manifold, catalytic converter, muffler, pipe replacement
Routine Maintenance:
Oil change, filter replacement, spark plug replacement, fluid level checks, tire rotation
Troubleshooting Diagnostics:
Systematic diagnostic flowcharts, symptom-based problem solving
Component Removal Installation:
Step-by-step instructions for major component replacement
Overhauls Rebuilds:
Complete engine and transmission rebuild procedures
Wiring Diagrams:
Comprehensive electrical schematics for all systems
Specification Data:
Torque specifications, clearances, fluid capacities, measurements
Special Tools:
Identification and usage of BMW-specific tools
Depth:
Comprehensive, professional-level detail suitable for experienced mechanics and serious DIY enthusiasts
E28 Engine Options:
M20B20 (2.0L I6), M20B25 (2.7L I6), M30B34 (3.4L I6), S38B35 (3.5L I6 - M5)
E34 Engine Options:
M20B20 (2.0L I6), M30B35 (3.5L I6), M50B20 (2.0L I6 - 24v), M50B25 (2.5L I6 - 24v), S38B36 (3.6L I6 - M5), S38B38 (3.8L I6 - M5)
E28 525I Power:
Approx. 171 hp (126 kW)
E28 M5 Power:
Approx. 286 hp (210 kW)
E34 535I Power:
Approx. 208 hp (153 kW)
E34 M5 Power:
Approx. 310 hp (228 kW) for S38B36
Fuel Delivery:
Bosch L-Jetronic or Motronic fuel injection (depending on model/year)
Fuel Type:
Unleaded Gasoline (Premium Recommended)
E28 Standard Transmission:
4-speed or 5-speed manual (Getrag 265)
E34 Standard Transmission:
5-speed manual (Getrag 260/5, Getrag 265 for some early models)
E28 Optional Transmission:
3-speed or 4-speed automatic (ZF 4HP22)
E34 Optional Transmission:
4-speed automatic (ZF 4HP22, ZF 4HP24 for V8 models)
Clutch Type:
Hydraulically actuated single dry plate
Oil Change:
Typically every 7,500 - 10,000 miles (12,000 - 16,000 km) or annually, check manual for specific model
Spark Plugs:
Replace every 30,000 - 60,000 miles (48,000 - 96,000 km) depending on plug type (copper, platinum)
Coolant Flush:
Every 2-3 years or 30,000 miles (48,000 km)
Engine Oil Viscosity:
e.g., 10W-40 or 15W-50 depending on climate (consult manual for specific engine)
Coolant Type:
Ethylene glycol based antifreeze (e.g., BMW Blue or compatible)
Power Steering Fluid:
BMW PSF or ATF Dexron III equivalent
E28 Common Problems:
Headliner sagging, fuel distributor issues (K-Jetronic), strut mount failure, rear subframe mounts cracking, rust in wheel wells and rockers
E34 Common Problems:
Cooling system leaks (plastic components), blower motor resistor failure, oil pan gasket leaks, front control arm bushings, door seal degradation, ABS sensor issues
Bmw Legacy:
BMW's reputation for engineering excellence, sport sedans, and driver-focused vehicles
E28 To E34 Transition:
The E34 succeeded the E28, introducing a more modern design, improved aerodynamics, and significant technological advancements, including a multi-link rear suspension on most models.
E34 Touring:
The E34 generation also saw the introduction of the 5 Series Touring (wagon) variant.
E28 Production Years:
1981-1988
E34 Production Years:
1988-1996 (Manual covers up to 1991 models)
E28 Manufacturing Locations:
Germany, South Africa
E34 Manufacturing Locations:
Germany, South Africa, Austria (Graz Steyr)