Segment:
Executive Mid-size Sedan.
Competitors:
Mercedes-Benz W124 E-Class, Audi 100/200, Volvo 240/740, Jaguar XJ.
Highlights:
Renowned BMW driving dynamics, robust build quality, classic E34 styling, M20 inline-six engine known for smoothness.
Audience:
Owners, mechanics, and enthusiasts of the BMW E34 518i seeking in-depth technical guidance for maintenance and repair.
Engine:
Comprehensive diagnostics, overhaul, tuning, fuel injection (Bosch Motronic), ignition system.
Transmission:
Manual and Automatic transmission service, repair, fluid specifications, and troubleshooting.
Brakes:
Front and rear brake system service, including ABS diagnostics (if equipped), pad/rotor replacement, and hydraulic system.
Suspension Steering:
Front and rear suspension components, steering system, alignment specifications, and component replacement.
Electrical:
Complete wiring diagrams, starter, alternator, battery, lighting systems, dashboard instruments, and ECU troubleshooting.
Body Chassis:
Body panel removal/installation, interior trim, doors, windows, sunroof, and chassis component inspection/repair.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks, spark plug replacement, belt inspections.
Troubleshooting:
Diagnostic procedures for common and uncommon faults, fault codes, and systematic problem-solving guides.
Repair:
Step-by-step repair instructions for all major vehicle systems, including engine rebuilds and component replacements.
Diagnostics:
Engine management system diagnostics, ABS system diagnostics, and electrical system troubleshooting.
Depth:
Detailed, factory-level technical information suitable for professional mechanics and experienced DIY enthusiasts.
Engine Type:
Inline 6-cylinder, naturally aspirated
Displacement:
2.0 Liters (1990 cc)
Bore X Stroke:
80.0 mm x 66.0 mm
Power Output:
126 hp (93 kW) at 6000 rpm
Torque Output:
174 Nm (128 lb-ft) at 4300 rpm
Fuel Delivery:
Bosch LE-Jetronic (or Motronic) electronic fuel injection
Fuel Type:
Unleaded gasoline (RON 91-95)
Ignition Type:
Distributorless ignition system (DIS) or conventional distributor-based ignition.
Coolant Capacity:
Approximately 8.5 Liters
Transmission Type:
Getrag 260 5-speed manual transmission
Transmission Type:
ZF 4HP22 4-speed automatic transmission
Clutch Type:
Hydraulically operated single dry plate clutch
Automatic Features:
Lock-up torque converter, sport/economy modes (depending on specific variant).
Manual Fluid:
BMW ATF-2 or equivalent (e.g., Pentosin CHF 7.1 or Dexron III)
Automatic Fluid:
BMW ATF-1 or equivalent (e.g., Dexron III)
Crash Test Results:
While specific ratings for the 518i are scarce due to the era, the E34 platform generally received good marks for its time in independent testing, often highlighting its robust chassis structure.
ABS:
Optional Anti-lock Braking System (ABS) on later models and specific trims.
Airbags:
Driver airbag optional, passenger airbag not standard on early models.
Seatbelts:
Front three-point inertia-reel seatbelts, rear lap and diagonal seatbelts.
Chassis Design:
Integrated safety cage, crumple zones front and rear.
Audio System:
Factory fitted cassette player with AM/FM radio, often with premium sound system options (e.g., Nakamichi).
Climate Control:
Manual or automatic climate control system (optional).
Cruise Control:
Standard or optional cruise control system.
On Board Computer:
Optional onboard computer providing fuel consumption, range, and basic diagnostics.
Connectivity Features:
Limited by era; typically focused on basic vehicle functions and audio. Later models may have offered limited cellular phone integration options.
Oil Change:
Every 10,000-15,000 km (6,000-9,000 miles) or 12 months, whichever comes first.
Air Filter:
Inspect every 10,000 km, replace every 20,000-30,000 km.
Spark Plugs:
Replace every 30,000-40,000 km (depending on type: standard or platinum).
Fuel Filter:
Replace every 40,000-60,000 km.
Engine Oil:
SAE 15W-40 or 10W-40 API SG or higher. Capacity: Approx. 4.25 Liters with filter.
Coolant:
50/50 mix of BMW Blue Coolant or equivalent and distilled water.
Engine Component:
Head gasket failures (especially on early M20 engines), oil pan gasket leaks, valve cover gasket leaks, cooling system component failures (water pump, thermostat, hoses).
Electrical Component:
Alternator failures, starter motor issues, wiring harness degradation (especially near exhaust manifolds), instrument cluster electronic faults.
Suspension Component:
Worn control arm bushings, ball joints, and shock absorbers are common due to age and mileage.
Body Chassis:
Rust in common E34 areas: wheel arches, rocker panels, rear window seal, jacking points.
Preventative:
Regularly inspect and replace cooling system components, maintain ignition system, address oil leaks promptly, check for rust.
Heritage:
BMW's reputation for 'Ultimate Driving Machine,' performance, engineering precision, and build quality established over decades.
Predecessor:
BMW E28 5 Series.
Successor:
BMW E39 5 Series.
Production Period:
1987-1996 (E34 Generation)
Manufacturing Locations:
Germany (Dingolfing), South Africa, Thailand, Mexico.
518I Specific Production:
The 518i was a more entry-level variant of the E34, primarily aimed at markets where engine size and fuel economy were key considerations.
Automotive Press:
The E34 generation of the 5 Series was consistently praised by automotive journalists for its sophisticated chassis, engaging handling, and refined interior, cementing BMW's leadership in the executive sedan market.
Reliability Perception:
While perceived as reliable for its time, specific maintenance and component wear are critical factors in actual reliability. The M20 engine is generally robust if maintained.
Manufacturing Standards:
Adherence to ISO 9001 quality management standards during its production run.
