Segment:
Executive Sedan/Wagon
Brand Perception:
Luxury, Performance, Engineering Excellence
Key Competitors:
Mercedes-Benz W124 E-Class, Audi V8, Lexus LS 400
Vehicle Focus:
Balancing comfort, performance, and build quality
Manual Benefit:
Cost-effective maintenance and repair solution
Engine:
Complete overhaul, diagnostics, timing, cooling, lubrication, fuel injection, emissions
Transmission:
Manual and automatic transmission overhaul, repair, diagnostics, fluid specifications
Drivetrain:
Driveshafts, differentials, axles, wheel bearings
Suspension:
Front and rear suspension components, shock absorbers, struts, bushings, alignment
Steering:
Power steering system, steering rack, tie rods, steering column
Brakes:
Front and rear brake systems (disc), ABS diagnostics and repair, hydraulic components
Electrical System:
Wiring diagrams, fuses, relays, lighting, starting system, charging system, diagnostics
Body And Chassis:
Body panel repair, interior trim, doors, windows, glass, structural components
HVAC:
Heating, ventilation, and air conditioning system diagnosis and repair
Fuel System:
Fuel tank, fuel pump, fuel injectors, fuel lines, pressure regulation
Exhaust System:
Exhaust manifold, catalytic converter, mufflers, pipes
Cooling System:
Radiator, water pump, thermostat, coolant hoses, fan
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, tune-ups
Troubleshooting:
Diagnostic procedures, symptom analysis, fault finding
Repair:
Step-by-step repair instructions for all major vehicle systems
Disassembly Reassembly:
Complete component removal and installation procedures
Specifications:
Torque specifications, clearances, fluid capacities, pressures
Wiring Diagrams:
Detailed electrical schematics for all systems
Depth Level:
Factory-level detail for comprehensive repair and overhaul
Diagnostic Procedures:
In-depth diagnostic strategies and troubleshooting trees
Illustration Detail:
Hundreds of detailed photos and illustrations
Transmission Options:
5-speed Manual or 4-speed Automatic (Steptronic optional later)
Automatic Transmission Models:
GETRAG (Manual), ZF 4HP22 (Automatic)
Rear Differential:
Standard Open Differential, Optional Limited Slip Differential (LSD)
Manual Transmission Fluid:
BMW MTF LT-2 or equivalent
Automatic Transmission Fluid:
ZF Lifeguardfluid 5 or equivalent
Crash Test Data:
NHTSA and IIHS data available (general information for era)
ABS:
Standard Anti-lock Braking System (ABS)
Airbags:
Driver airbag standard, passenger airbag optional/standard on later models
Seatbelts:
3-point seatbelts with pretensioners
Chassis Construction:
Reinforced safety cell, crumple zones
Oil Change Interval:
Typically 5,000-7,500 miles (refer to manual for specific recommendations based on driving conditions)
Spark Plug Replacement:
Varies by plug type (e.g., 30,000 miles for standard, up to 100,000 miles for long-life)
Timing Belt Replacement:
Not applicable for M50 and M60 engines (chain-driven), M30 engine has a chain. Manual will specify inspection intervals.
Engine Oil Spec:
Refer to manual for specific viscosity (e.g., 5W-30, 10W-40, or 20W-50 depending on climate and engine)
Coolant Type:
BMW Blue Coolant or equivalent (50/50 mix with distilled water)
Common E34 Issues:
Cooling system leaks (hoses, radiator, water pump), VANOS system (on M50TU engines, not typically on early E34 525i), fuel pump failure, door panel separation, valve cover gasket leaks, oil pan gasket leaks, sagging headliner.
M60 V8 Specifics:
Timing chain guide wear, nikasil cylinder wear (early M60B30 and M60B40 models), head gasket issues.
M30 Inline 6 Specifics:
Known for robust design, but can suffer from oil leaks and cooling system issues due to age.
Brand History:
Bayerische Motoren Werke AG, established 1916, known for luxury and performance vehicles
E34 Introduction:
Launched globally in 1987, replaced the E28 5-Series. Known for improved aerodynamics, luxury, and technology.
Production Period:
1987-1996 (Global)
Manufacturing Locations:
Germany (Dingolfing), South Africa, and others
Notable Variants:
M5 (S38 engine), Alpina variants