Segment:
Executive/Luxury Sedan
Positioning Statement:
The BMW 5 Series (E34) represented BMW's core offering in the mid-size luxury sedan segment, emphasizing driving dynamics, sophisticated engineering, and premium comfort.
Key Competitors:
Mercedes-Benz E-Class (W124), Audi 100/A6 (C3/C4), Lexus GS, Jaguar XJ.
Design Philosophy:
Understated elegance, driver-focused cockpit, and balanced proportions.
Performance Focus:
Renowned for its engaging handling and potent inline-six engines.
Powertrain:
Engine (M30B35), Fuel System, Exhaust System, Cooling System, Drivetrain (including transmission and differential).
Chassis:
Suspension (front and rear), Steering System, Braking System (including ABS), Wheels and Tires.
Electrical:
Engine Management Electronics (DME), Ignition System, Lighting, Instrumentation, Power Accessories, Body Electrical Systems, Fuses and Relays.
Body And Interior:
Body Panels, Doors, Windows, Seats, Interior Trim, HVAC System.
Maintenance:
Routine service, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection and replacement.
Troubleshooting:
Diagnostic procedures for common issues, fault code interpretation, symptom-based troubleshooting guides.
Repair And Rebuild:
Detailed step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation.
Adjustments And Settings:
Wheel alignment, brake adjustments, idle speed settings, ignition timing (where applicable).
Depth:
In-depth coverage suitable for professional technicians and advanced DIY enthusiasts, including detailed torque specifications, clearances, and diagnostic procedures.
Diagnostic Coverage:
Extensive diagnostic flowcharts and information for the Bosch Motronic engine management system.
Engine Type:
Inline 6-cylinder, naturally aspirated
Displacement:
3.5 Liters (3430 cc)
Horsepower:
208 hp @ 5700 rpm (approx.)
Torque:
225 lb-ft @ 4000 rpm (approx.)
Fuel Delivery:
Bosch Motronic Electronic Fuel Injection (EFI)
Fuel Type:
Premium Unleaded Gasoline (91+ Octane)
ECU:
Bosch Motronic M1.3 or M2.7
Transmission Type:
5-Speed Manual (Getrag 260)
Transmission Type:
4-Speed Automatic (ZF 4HP22)
Rear Wheel Drive:
Standard on all E34 models.
Manual Transmission Fluid:
BMW MTF LT-2 or equivalent (e.g., Red Line MTL)
Automatic Transmission Fluid:
Dexron III (or equivalent specification like Mercon)
Length:
Approx. 189.0 inches (4800 mm)
Width:
Approx. 70.5 inches (1790 mm)
Height:
Approx. 56.1 inches (1425 mm)
Wheelbase:
Approx. 111.4 inches (2830 mm)
Curb Weight:
Approx. 3500 - 3700 lbs (1588 - 1678 kg)
NHTSA Ratings:
Not readily available for this era in a standardized format, but known for robust construction.
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Optional Automatic Stability Control (ASC)
Airbags:
Driver's side airbag standard from later model years (check specific year), passenger airbag optional.
Body Structure:
Reinforced safety cage, crumple zones.
Audio System:
BMW Bavaria C Business/Professional cassette radio with optional CD changer.
Navigation:
Optional early generation GPS navigation system (rare).
Cruise Control:
Standard electronic cruise control.
Cellular:
Optional factory-installed car phone in later models.
Oil Change Interval:
Every 5,000 - 7,500 miles or annually, whichever comes first (BMW recommendations may vary based on driving conditions).
Coolant Change Interval:
Every 2 years or 30,000 miles.
Spark Plug Replacement:
Approximately every 30,000 - 60,000 miles, depending on plug type (e.g., standard copper vs. long-life platinum).
Timing Belt Interval:
Not applicable; M30 engine uses a timing chain.
Engine Oil Type:
API SJ or higher, SAE 15W-40 or 10W-40 (check owner's manual for specific viscosity based on climate).
Engine Oil Capacity:
Approx. 6.5 US quarts (6.2 Liters) with filter change.
Coolant Type:
BMW Blue Antifreeze/Coolant or equivalent (ethylene glycol based, silicate-free).
Cooling System:
Plastic coolant reservoir, hoses, and water pump can degrade over time. Expansion tank hose connections are common leak points.
Electrical:
Wire harness degradation, particularly around the engine bay, can lead to various electrical gremlins. OBC (On-Board Computer) issues are common.
Suspension:
Worn control arm bushings, ball joints, and rear subframe bushings can cause steering wander and clunking noises.
Fuel System:
Fuel pump and injector seals can degrade, leading to leaks or poor running conditions. EHA (Electro-Hydraulic Actuator) valve on fuel distributors can fail.
Interior:
Headliner sagging, pixelation on instrument cluster displays (OBC and odometer), and worn driver's seat bolster.
Brand Identity:
BMW's reputation for 'The Ultimate Driving Machine' was firmly established by the time the E34 generation was produced.
Predecessor:
E28 5 Series
Production Period:
1988-1996 (model years 1989-1995 for North America)
Manufacturing Locations:
Germany (Dingolfing plant)
E34 Significance:
The E34 was the first 5 Series to offer all-wheel drive (525iX) and also introduced the V8 engine options in the 5 Series line (530i, 540i).
Automotive Press Reviews:
Consistently praised by automotive journalists for its driving dynamics, build quality, and advanced engineering for its time.
Industry Accolades:
Considered a benchmark in its class for luxury sedans, setting standards for handling and refinement.
