Positioning:
The BMW E34 5 Series represented BMW's entry into the mid-size luxury sport sedan segment with a focus on refined performance, advanced engineering, and driver engagement. It competed with rivals like the Mercedes-Benz W124 E-Class and Audi V8 Quattro.
Competitors:
Mercedes-Benz W124 E-Class, Audi V8 Quattro (D1), Jaguar XJ (XJ40), Lexus LS 400 (later in the generation).
Design Philosophy:
A blend of aerodynamic styling, sophisticated engineering, and robust build quality, continuing BMW's reputation for 'The Ultimate Driving Machine'.
Manual Advantage:
This factory service manual provides the same level of detail and accuracy as the tools used by BMW dealership technicians, enabling comprehensive DIY repairs and maintenance.
Engine Systems:
Engine mechanicals, cooling system, lubrication system, fuel system, ignition system, exhaust system, engine management (DME), emissions control.
Transmission Systems:
Manual transmission (Getrag 260), Automatic transmission (ZF 4HP22, ZF 5HP18), clutch system, driveshafts, differentials.
Suspension Steering Brakes:
Front and rear suspension components (struts, control arms, bushings, springs, shock absorbers), steering system (power steering pump, steering rack, tie rods), brake system (discs, calipers, ABS, parking brake).
Body:
Body structure, body panels, doors, hoods, trunk lid, glass, exterior trim, corrosion protection.
Body Equipment:
Interior trim, seats, headliner, sound insulation, climate control system (HVAC), power windows, power seats, central locking.
Electrical System:
Basic 12V electrical system, battery, alternator, starter, lighting system (headlights, taillights, interior lights), instrumentation, wipers, horn, fuse box.
Equipment And Accessories:
Heated seats, sunroof, cruise control, radio/audio system, on-board computer (OBC), fog lights, traction control (ASC - where applicable).
Electrical Wiring Diagrams:
Comprehensive electrical schematics for all major systems, including power distribution, component locations, and circuit tracing.
Maintenance Procedures:
Oil and filter changes, coolant flushes, spark plug replacement, air filter replacement, fuel filter replacement, brake fluid changes, belt inspections and replacement.
Repair Procedures:
Engine component removal and installation (e.g., alternator, starter, water pump), transmission removal and installation, suspension component replacement, brake caliper and rotor replacement, steering rack replacement, exhaust system repair.
Troubleshooting Diagnostics:
Symptom-based diagnostics, fault code retrieval (where applicable for the era), testing of electrical components, fuel system pressure testing, ignition system diagnostics.
Diagnostic Charts:
Systematic troubleshooting guides for common drivability and electrical issues.
Depth:
Highly detailed, suitable for professional technicians and experienced DIY enthusiasts. Includes torque specifications, clearances, assembly sequences, and specialized tool requirements.
Crash Test Availability:
Limited independent crash test data for this era compared to modern standards. However, BMW's reputation for build quality and safety engineering was strong.
ABS:
Standard on most models, Bosch ABS II or III
Traction Control:
Optional: Automatic Stability Control (ASC) on some later models.
Airbags:
Driver airbag standard on later models, passenger airbag optional.
Seatbelts:
3-point inertia-reel seatbelts with pretensioners.
Body Structure:
Reinforced safety cell, crumple zones.
Oil Change Interval:
Typically every 7,500-10,000 miles or 12-15,000 km, or as indicated by the onboard computer's service indicator.
Spark Plug Replacement:
Around 30,000-60,000 miles depending on spark plug type (copper vs. platinum).
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles.
Engine Oil 525I 530I 535I M30:
SAE 5W-30 or 5W-40, API SG or higher (check manual for exact spec and viscosity based on temperature).
Engine Oil 540I M60:
SAE 5W-30 or 5W-40, API SG or higher (check manual for exact spec and viscosity based on temperature).
Coolant:
BMW Blue Antifreeze/Coolant (ethylene glycol based), mixed 50/50 with distilled water.
Transmission Fluid Manual:
GL-4 or GL-5 gear oil, viscosity typically 75W-90 (refer to manual for specific Getrag requirements).
Transmission Fluid Automatic Zf4Hp22:
Dexron II or equivalent ATF (Automatic Transmission Fluid).
Transmission Fluid Automatic Zf5Hp18:
Dexron II or equivalent ATF (Automatic Transmission Fluid).
Cooling System:
Plastic coolant expansion tanks are prone to cracking and leaking. Water pumps can fail, especially the plastic impeller variants.
Engine M60 V8:
Timing chain guides are a known failure point and can cause catastrophic engine damage if not addressed. Nickel plating on cylinder walls could wear in early models.
Electrical:
Door wiring harnesses can break due to repeated flexing. ABS sensors and modules can fail. Heater control valves and blower motors are common failure points.
Suspension:
Front control arm bushings and ball joints wear out. Rear subframe bushings can degrade. Shock absorbers and struts have a finite lifespan.
Bmw Legacy:
BMW has a long-standing heritage in producing high-performance, driver-focused luxury sedans, dating back to its inception.
E34 Development:
The E34 was the third generation of the BMW 5 Series, succeeding the E28 and preceding the E39. It was designed by Claus Luthe and introduced in 1987 (as a 1988 model in some markets), with the US market receiving it for the 1989 model year. It marked a significant step forward in terms of aerodynamics, technology, and refinement.
Production Years E34:
1987-1996 (globally)
Assembly Locations:
Germany (Dingolfing), Austria (Magna Steyr), South Africa, Thailand, Mexico.
