🏷️ Basic Information Identification Make: BMW Model: 520i Chassis Code: E34 Model Years Covered: 1988, 1989, 1990, 1991 Generation E Segment: E34 Codes Engine Code Typical: M20B20 (for early models),...
Approximately 129 hp (95 kW) at 5600 rpm (M20B20); Approximately 150 hp (110 kW) at 5600 rpm (M50B20)
Torque Typical:
Approximately 174 Nm (129 lb-ft) at 4300 rpm (M20B20); Approximately 190 Nm (140 lb-ft) at 4200 rpm (M50B20)
Fuel System
Fuel Delivery:
Bosch Motronic electronic fuel injection (EFI)
Cooling System
Cooling Type:
Water-cooled
Lubrication
Oil Type Specification:
Refer to manual for specific BMW LL-98, LL-01, or API SJ/SL rated oils; typically 5W-30 or 10W-40
Engine Codes
Engine Identification Notes:
Early E34 520i models used the M20B20 engine. From September 1990, the M50B20 engine was introduced, which was a more modern twin-cam design.
🔧 Transmission
Standard
Transmission Type Standard:
5-speed Manual Transmission (Getrag 260/5)
Optional
Transmission Type Optional:
4-speed Automatic Transmission (ZF 4HP22)
Features
Transmission Fluid Spec:
Refer to manual for specific ATF (Automatic Transmission Fluid) or MTF (Manual Transmission Fluid) specifications; e.g., Dexron III for automatic, Pentosin MTF for manual
📐 Dimensions
Exterior
Length:
Approx. 4720 mm (185.8 in)
Width:
Approx. 1751 mm (68.9 in)
Height:
Approx. 1380 mm (54.3 in)
Weights
Curb Weight Approx:
Approx. 1400-1500 kg (3086-3307 lbs) depending on transmission and options
Wheelbase:
Approx. 2760 mm (108.7 in)
🛡️ Safety Features
Ratings
Crash Test Data:
Limited official crash test data available from this era; known for robust construction typical of BMW
Active Features
Braking System:
Anti-lock Braking System (ABS) standard on most models
Passive Features
Airbags:
Driver-side airbag available as an option from late 1988/early 1989 onwards; standard on later models
Factory fitted BMW Bavaria C radio/cassette or similar; optional CD players available
Climate Control:
Manual or optional automatic climate control (ECC - Electronic Climate Control)
Driver Assistance
Cruise Control:
Optional
Parking Sensors:
Not typically available for this generation
Connectivity
Bluetooth Integration:
Not available in original configuration
🔧 Maintenance
Service Intervals
Oil Change Interval Typical:
Every 7,500 to 10,000 miles (12,000 to 15,000 km) or annually, whichever comes first (depending on driving conditions and oil used; consult manual for specific recommendations)
Air Filter Replacement Typical:
Every 15,000 to 30,000 miles (24,000 to 48,000 km)
Spark Plug Replacement Typical:
Every 30,000 to 60,000 miles (48,000 to 96,000 km), depending on plug type
Fluid Specifications
Coolant Type:
BMW Blue Antifreeze/Coolant or equivalent; typically 50/50 mix with distilled water
Brake Fluid Type:
DOT 4
Known Issues
Common E34 Issues:
Cooling system leaks (radiator, hoses, water pump), VANOS issues (on M50 engines), dashboard pixels (though less common on E34 than later models), fuel pump failure, window regulator issues, door seal degradation.
Manual Utility For Issues:
The manual provides detailed procedures for diagnosing and repairing these common issues, including component replacement and system bleeding.
📚 Vehicle History
Brand Heritage
Bmw Philosophy:
Ultimate Driving Machine, focus on performance, engineering, and driver engagement
Model Evolution
E34 Introduction:
The E34 generation of the 5 Series was introduced in 1987 (Europe) and 1988 (North America), succeeding the E28. It represented a significant step forward in styling, technology, and refinement.
Production
Production Period:
1987-1996 (E34 generation overall); 1988-1991 for this specific manual coverage
Production Locations
Manufacturing Sites:
Primarily Dingolfing, Germany
🏆 Awards & Recognition
Recognitions
Automotive Journal Awards:
The E34 generation was highly regarded by automotive journalists for its handling, comfort, and build quality. Specific awards for the 520i might be less documented than for higher-spec models but it was a strong contender in its segment.
Ratings
Reliability Perception:
Generally considered reliable with proper maintenance, characteristic of BMW's reputation for engineering.
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