Target Audience:
Owners and independent repair shops seeking accurate, factory-derived information for the 1991 BMW M5.
Advantage Over Print:
Convenient online access, searchability, and frequent updates (though less common for older models) compared to outdated printed manuals.
Licensing:
Officially licensed and derived from OE (Original Equipment) materials, ensuring accuracy and authenticity.
Ease Of Use:
Intuitive interface and quick access to specific repair or maintenance tasks.
Cost Effectiveness:
Provides substantial savings compared to dealership labor rates by enabling DIY repairs.
Engine Mechanical:
Complete engine disassembly, assembly, component testing, and overhaul procedures.
Engine Management:
Ignition system, fuel injection system (DME), emissions control, engine sensors, and diagnostic procedures.
Drivetrain:
Clutch, manual transmission (Getrag 265), driveshaft, differential, and axle shafts.
Suspension:
Front and rear suspension components, shock absorbers, springs, control arms, bushings, and wheel alignment specifications.
Steering:
Power steering system, steering rack, tie rods, and steering column.
Brakes:
Hydraulic system, ABS (Anti-lock Braking System), front and rear disc brake components, calipers, rotors, and brake fluid specifications.
Electrical System:
Battery, charging system (alternator), starting system, lighting, horns, and accessory circuits.
Wiring Diagrams:
Comprehensive color-coded wiring diagrams for all vehicle electrical systems.
Heating Ventilation And Air Conditioning HVAC:
HVAC system components, refrigerant, controls, and troubleshooting.
Bodywork:
Body panel removal and installation, interior trim, glass, and seals.
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, spark plug replacement, and lubrication.
Diagnostics:
System-specific diagnostic charts, troubleshooting flowcharts, and fault code interpretations.
Repair:
Step-by-step repair instructions for all major vehicle systems, including component replacement and adjustment.
Rebuilds:
Detailed procedures for engine, transmission, and differential rebuilds.
Troubleshooting Guides:
Extensive troubleshooting guides for common and uncommon vehicle issues.
Level Of Detail:
Factory-level technical information for professional technicians and advanced DIY enthusiasts.
Precision:
Includes torque specifications, clearances, timing settings, and pressure readings.
Format Type:
Online Software (Web-based)
Compatibility:
Compatible with PC, laptop, smartphone, and tablet web browsers.
Searchability:
Fully searchable text content for quick information retrieval.
Print Capability:
While primarily online, content can be printed by the user.
Binding:
N/A (Online Digital Format)
Paper Quality:
N/A (Online Digital Format)
Configuration:
Inline 6-cylinder, DOHC, 24 valves
Displacement:
3.6 Liters (3535 cc)
Bore X Stroke:
94.0 mm x 85.0 mm
Compression Ratio:
10.0:1
Horsepower:
315 hp @ 6900 rpm (DIN)
Torque:
350 Nm (258 lb-ft) @ 4750 rpm (DIN)
Fuel Delivery:
Bosch Motronic M1.2 Fuel Injection and Ignition
Fuel Type:
Premium Unleaded Gasoline (95-98 RON)
Engine Oil Type:
SAE 15W-40 or 20W-50 (API SG or higher)
Engine Oil Capacity:
6.5 Liters (with filter)
Transmission Type:
5-speed Manual (Getrag 265 'dogleg' or standard pattern)
Gear Ratios:
Refer to manual for specific ratios (e.g., 1st: 3.25, 2nd: 2.05, 3rd: 1.42, 4th: 1.00, 5th: 0.75)
Transmission Fluid Type:
SAE 75W-90 Synthetic Gear Oil (API GL-4 or GL-5)
Transmission Fluid Capacity:
1.7 Liters
Safety Features Note:
While official crash test data from modern agencies is limited for this era, the E34 platform incorporated advanced safety features for its time.
ABS:
Standard Anti-lock Braking System (ABS)
Airbags:
Driver-side airbag (standard for 1991 MY)
Seatbelts:
Three-point inertia-reel seatbelts with pretensioners
Chassis Structure:
Reinforced safety cage and crumple zones.
Oil Change Interval:
Every 7,500 - 10,000 miles (12,000 - 16,000 km) or annually, whichever comes first.
Spark Plug Replacement:
Every 30,000 miles (48,000 km) for standard plugs, longer for specific performance plugs.
Coolant Flush:
Every 2-3 years or 30,000 miles.
Brake Fluid Flush:
Every 2 years.
Coolant Type:
BMW Blue Antifreeze/Coolant or equivalent (50/50 mix with distilled water)
Brake Fluid Type:
DOT 4 or DOT 5.1
Common Wear Items:
Eccentric shaft sensor seal (oil leak), intake manifold gaskets, VANOS seals (though VANOS is not present on the S38B36), flex discs, rear subframe bushings.
Engine Specific Concerns:
Timing chain guide wear, oil pump chain tensioner, potential rod bearing wear under extreme use.
Electrical Concerns:
Fuse box corrosion, intermittent electrical connections, headlight leveling system issues.
Bmw Motorsport Division:
BMW M GmbH (formerly BMW Motorsport GmbH) is renowned for creating high-performance versions of BMW's standard road cars.
E34 M5 Development:
The E34 M5 was the third generation of the M5, evolving from the E28 M5 and introducing a more refined and powerful package with the S38B36 engine.
Production Years:
1988-1995 (E34 M5)
Production Location:
Dingolfing, Germany
Production Volume E34 M5:
Approximately 12,000 units worldwide (including S38B36 and S38B38 variants).
