Mercedes-Benz W124 E-Class, Audi V8 Quattro, Lexus LS400, Jaguar XJ
Key Features
Vehicle Strengths:
Renowned driving dynamics, solid build quality, sophisticated engineering, available powerful inline-six and V8 engines.
Manual Value Proposition:
Empowers owners and technicians with the necessary knowledge to maintain and repair the complex systems of the E34 generation, preserving its performance and longevity.
Troubleshooting common electrical faults, component testing, wiring diagram interpretation
Suspension And Steering Repair:
Ball joint replacement, control arm bushing replacement, power steering fluid leak diagnosis
Troubleshooting Guides:
Step-by-step diagnostic procedures for common and uncommon issues
Wiring Diagrams:
Comprehensive, system-specific wiring schematics for all major electrical components
Technical Depth
Depth:
Comprehensive: Covers everything from basic maintenance to complete engine and transmission overhauls, including advanced diagnostics and electrical system repair.
📊 Manual Specifications
File Format
Digital Quality:
High-resolution scans, searchable text (if PDF), well-organized chapters
Print Quality
Paper Quality:
Not applicable for digital format, but implies clear, legible text and diagrams.
Binding Type
Binding:
Not applicable for digital format.
⚙️ Engine Specifications
Primary Engine M50
Engine Code:
M50B20, M50B25
Configuration:
Inline 6-cylinder, DOHC, 24 valves
Displacement 2.0L:
1990 cc (121.4 cu in)
Displacement 2.5L:
2494 cc (152.2 cu in)
Horsepower 2.0L:
150 hp @ 5900 rpm (approx.)
Horsepower 2.5L:
192 hp @ 5900 rpm (approx.)
Torque 2.0L:
137 lb-ft @ 4200 rpm (approx.)
Torque 2.5L:
181 lb-ft @ 4200 rpm (approx.)
Secondary Engine V8
Engine Code:
M60B30, M60B40
Configuration:
V8, DOHC, 32 valves
Displacement 3.0L:
2997 cc (182.9 cu in)
Displacement 4.0L:
3982 cc (243.0 cu in)
Horsepower 3.0L:
215 hp @ 5800 rpm (approx.)
Horsepower 4.0L:
282 hp @ 5800 rpm (approx.)
Torque 3.0L:
214 lb-ft @ 4500 rpm (approx.)
Torque 4.0L:
295 lb-ft @ 4500 rpm (approx.)
Performance
Engine Management:
Bosch Motronic Electronic Engine Control (EEC) with OBD-I diagnostics.
Approx. 1500-1750 kg (3300-3850 lbs), varies by model and equipment
Wheelbase:
Approx. 2760 mm (108.7 in)
Wheels Tires
Bolt Pattern:
5x120 mm
Common Tire Sizes:
205/60 R15, 225/55 R15, 235/45 R17 (varies by trim)
🛡️ Safety Features
Ratings
Crash Test Data:
Era-appropriate safety standards; no standardized global NCAP ratings as we know them today. Focus on passive safety features.
Active Features
ABS:
Standard on most models, optional on early 6-cylinder models. (Bosch or Teves systems)
Traction Control:
Optional on some models (ASC+T)
Passive Features
Airbags:
Driver's airbag standard from 1993 onwards; optional passenger airbag on later models.
Seatbelts:
Three-point inertia-reel seatbelts front and rear.
Body Structure:
Reinforced safety cage, crumple zones.
💡 Technology Features
Infotainment
Audio System:
Optional BMW Bavaria C Business/Professional cassette radios, with CD changer preparation. Analog tuning, pre-amplified outputs.
Navigation:
Early generation (optional) GPS navigation systems were available on later E34 models, often with separate CRT screens and CD-ROM maps.
Driver Assistance
Cruise Control:
Standard on most models, electronically controlled.
Parking Sensors:
Not available on E34 generation.
Connectivity
Phone Integration:
Optional integrated car phone systems were available on very late models, but no modern Bluetooth or smartphone integration.
🔧 Maintenance
Service Intervals
Oil Change:
Every 7,500 - 10,000 miles or 12 months (depending on driving conditions and oil used). The manual will provide specific recommendations.
Spark Plugs:
Typically 30,000 - 60,000 miles, depending on plug type (copper, platinum, iridium).
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles. The manual will specify BMW's coolant type.
Fluid Specifications
Engine Oil:
BMW recommends specific viscosity grades (e.g., 5W-30, 10W-40) and API service classifications. The manual will detail exact specifications and capacities for each engine. Example: M50B25 requires ~6.5 liters.
Transmission Fluid Manual:
GL-4 or GL-5 gear oil, viscosity dependent on temperature. Manual will specify Getrag's recommendations. Approx. 1.5-2.0 liters for Getrag 260.
Transmission Fluid Automatic:
ZF LifeguardFluid (or equivalent ATF spec like Dexron III for older models, check manual for exact spec). Approx. 3-4 liters for a pan drain/refill. ZF recommends specific fluid for longevity.
Brake Fluid:
DOT 4 or DOT 4 Plus. Capacities are low, manual will specify.
Coolant:
BMW Blue or BMW Green antifreeze concentrate mixed with distilled water (50/50 ratio). Approx. 9-11 liters.
Known Issues
Cooling System:
Plastic coolant expansion tanks can become brittle and crack. Water pump impellers can degrade.
Engine M50:
VANOS (Variable Valve Timing) solenoid or sealing rings can fail, leading to rough idle and performance loss. Eccentric shaft sensor failure (ESS) can cause no-start conditions.
Engine M60:
Head gasket leaks are less common, but coolant leaks from the front timing cover are known. Nikasil cylinder liner degradation on early M60B30/B40 engines (replaced with Alusil later) can be an issue if poor fuel quality or overheating occurred.
Suspension:
Worn control arm bushings, shock mounts, and rear subframe bushings can affect ride and handling. Sway bar links often wear out.
Electrical:
Corroded ground points, failing EWS (immobilizer) on later models, dashboard warning lights (e.g., ABS, check engine) due to sensor failures or wiring issues.
BMW's reputation for 'The Ultimate Driving Machine,' synonymous with performance, engineering, and driver engagement.
Model Evolution
Predecessor:
BMW E28 5 Series
Successor:
BMW E39 5 Series
Key Developments E34:
Introduction of V8 engines, aerodynamic improvements over E28, increased chassis rigidity, development of Touring (wagon) variant.
Production
Production Period:
1987-1996 (globally), with E34 variant production ending in 1995/1996.
Manufacturing Locations:
Germany (Dingolfing plant), South Africa, Austria, Thailand.
🏆 Awards & Recognition
Recognitions
Automotive Press Acclaim:
Consistently praised by automotive journalists for its driving dynamics, build quality, and sophisticated engineering. Often cited as one of the best sedans of its era.
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