Segment:
Executive Sedan and Wagon (Luxury Mid-size)
Competitors:
Mercedes-Benz W124 E-Class, Audi V8 Quattro, Jaguar XJ, Lexus LS
Design Philosophy:
Focus on driver engagement, build quality, sophisticated engineering, and a blend of performance and comfort
Powertrain Options:
Renowned BMW inline-six and V8 engines, known for smoothness and power delivery
Chassis Dynamics:
Excellent ride and handling balance, rear-wheel drive bias (optional xDrive AWD on some models, though less common for E34 in this range)
Covered Models:
525i, 530i, 535i, 540i
Covered Body Styles:
Saloon (Sedan), Touring (Wagon/Estate)
Covered Years:
1989, 1990, 1991, 1992, 1993, 1994, 1995
Estimated Page Count:
Extensive (typically 1000+ pages for a complete workshop manual of this era)
Type:
Complete Workshop Service Repair Manual
Format:
Downloadable (likely PDF)
Engine Systems:
Engine mechanicals, fuel injection (Motronic), ignition system, cooling system, lubrication system, exhaust system
Transmission Systems:
Manual transmission, Automatic transmission (e.g., ZF 4HP22, 5HP18, 5HP30), clutch, driveline, driveshafts, differentials
Suspension Steering:
Front suspension (MacPherson struts), rear suspension (semi-trailing arms), steering system (power steering), wheel alignment
Brake Systems:
Front and rear disc brakes, ABS (Anti-lock Braking System), brake fluid, hydraulic system
Electrical Systems:
Complete wiring diagrams, fuse box layouts, battery, alternator, starter, lighting systems, instruments and controls, power windows, central locking, OBC (On-Board Computer)
Body Chassis:
Body panels, doors, hood, trunk, interior trim, seals, chassis components, corrosion protection
Heating Ventilation Ac:
HVAC system, climate control, refrigerant system, blower motor, evaporator, condenser
Routine Maintenance:
Oil and filter changes, air filter replacement, spark plug replacement, coolant flushes, brake fluid replacement, fuel filter replacement, belt inspection and replacement
Engine Repairs:
Engine overhaul, head gasket replacement, piston and ring replacement, valve adjustments, timing chain/belt replacement (if applicable, though E34 typically used chains), camshaft timing
Transmission Repairs:
Clutch replacement, transmission overhaul (manual and automatic), torque converter replacement, transmission fluid and filter service
Suspension Steering Repairs:
Strut and shock absorber replacement, control arm bushing replacement, ball joint replacement, tie rod end replacement, power steering pump and rack repair
Brake System Repairs:
Brake pad and rotor replacement, caliper overhaul, brake line replacement, ABS sensor diagnosis and replacement, bleeding brake system
Electrical Diagnostics:
Troubleshooting electrical faults, component testing, wiring harness repair, ECU (Engine Control Unit) diagnostics
Body And Trim Repairs:
Panel replacement, rust repair, glass replacement, interior component installation and repair
Diagnostic Capabilities:
Detailed troubleshooting guides, fault code interpretation (where applicable), component testing procedures
Repair Complexity:
Suitable for DIY enthusiasts and professional mechanics; covers basic maintenance to major overhauls and component rebuilds
Diagrams Illustrations:
Extensive use of exploded views, diagrams, wiring schematics, and step-by-step illustrations
Engine Code 525I:
M50B25 (2.5L inline-six)
Engine Code 530I:
M60B30 (3.0L V8)
Engine Code 535I:
M30B35 (3.5L inline-six)
Engine Code 540I:
M60B40 (4.0L V8)
Horsepower 525I:
Approx. 189 hp @ 5,800 rpm (US Spec)
Torque 525I:
Approx. 240 Nm (177 lb-ft) @ 4,700 rpm (US Spec)
Horsepower 535I:
Approx. 208 hp @ 5,700 rpm (US Spec)
Torque 535I:
Approx. 305 Nm (225 lb-ft) @ 4,000 rpm (US Spec)
Horsepower 540I:
Approx. 282 hp @ 5,800 rpm (US Spec)
Torque 540I:
Approx. 400 Nm (295 lb-ft) @ 4,500 rpm (US Spec)
Injection Type:
Electronic Fuel Injection (EFI), BMW Motronic systems
Fuel Type:
Premium Unleaded Gasoline (91+ Octane)
Length Saloon:
Approx. 4,730 mm (186.2 in)
Length Touring:
Approx. 4,805 mm (189.2 in)
Width:
Approx. 1,751 mm (68.9 in)
Height Saloon:
Approx. 1,412 mm (55.6 in)
Height Touring:
Approx. 1,445 mm (56.9 in)
Wheelbase:
Approx. 2,760 mm (108.7 in)
Cargo Volume Saloon:
Approx. 530 liters (18.7 cu ft)
Cargo Volume Touring:
Approx. 570-1,570 liters (20.1-55.4 cu ft) with rear seats folded
Curb Weight Approx Kg:
1500-1700 kg (depending on model and equipment)
Head Unit:
Factory BMW radios (e.g., Bavaria C, Professional RDS), often with cassette players. CD changers optional.
Speakers:
Factory Hi-Fi system available, often with quality component speakers.
Cruise Control:
Standard on most models, electronic.
Parking Sensors:
Not typically factory-fitted for this generation.
On Board Computer Obc:
Standard or optional on many models, providing basic diagnostics and trip information.
Automatic Climate Control:
Optional on many models, offering sophisticated temperature and air distribution management.
Oil Change Interval:
Typically 7,500-10,000 miles (12,000-16,000 km) or as indicated by the vehicle's condition-based service (CBS) system (if equipped, though basic on early E34).
Spark Plug Interval:
100,000 miles (160,000 km) for M50 engines (double platinum); 30,000-50,000 miles for older M30 engines (copper).
Coolant Flush Interval:
Every 2-3 years or 30,000-50,000 miles.
Engine Oil Spec:
BMW Longlife-01 (LL-01) or equivalent synthetic oil, SAE 5W-30 or 5W-40 recommended. Always consult owner's manual for specific viscosity based on climate.
Coolant Spec:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) or equivalent, mixed 50/50 with distilled water.
Brake Fluid Spec:
DOT 4 High-Performance Brake Fluid.
Transmission Fluid Manual:
SAE 75W-90 or 75W-140 synthetic gear oil (check specific manual for exact spec).
Transmission Fluid Automatic:
ZF Lifeguardfluid 5 (for 4HP22) or Lifeguardfluid 6 (for 5HP30), or compatible Dexron III/VI in a pinch (though genuine ZF is preferred for longevity).
Common Problems E34:
Cooling system failures (plastic components degrading), oil leaks (valve cover gaskets, oil pan gaskets), VANOS issues (on M50TU engines), ignition coil failure, ABS sensor failures, door seal deterioration, headliner sagging, fuel pump failure.
V8 Engine Specific:
M60/M62 engines are known for Nikasil cylinder liner wear issues in early production (especially 1994-95 MY 540i with M60B40) if poor fuel or maintenance was used. Later M62 engines used Alusil.
Bmw Legacy:
BMW's reputation for performance, luxury, and build quality established through decades of automotive engineering.
E34 Design Era:
Designed by Claus Luthe; marked a transition in BMW design, retaining classic BMW lines with more modern aerodynamic elements.
E34 Key Innovations:
Introduction of the M60 V8 engine, significant chassis improvements, advanced electronics (OBC, ABS, ASC).
Production Years:
1987-1996 (global production, with specific North American market introduction in 1989)
Assembly Locations:
Dingolfing, Germany; Spartanburg, South Carolina, USA (for some models)