Engine Mechanical:
Complete disassembly, inspection, repair, and reassembly of engine components.
Fuel System:
Carburetor (for 518) or K-Jetronic fuel injection (for 518i) diagnosis, repair, and adjustment.
Ignition System:
Ignition timing, spark plugs, coil, distributor, and ignition control module.
Cooling System:
Radiator, thermostat, water pump, hoses, and fan clutch replacement and maintenance.
Lubrication System:
Oil pump, oil filter, oil pan, and oil circulation troubleshooting.
Exhaust System:
Catalytic converter (if equipped), mufflers, pipes, and mounting.
Transmission Manual:
Clutch, gearbox, driveshaft, and rear axle overhaul and repair.
Transmission Automatic:
Diagnosis, fluid changes, and common repair procedures for the ZF 4HP22 automatic transmission (if applicable).
Brakes:
Hydraulic system, master cylinder, brake calipers, pads, discs, drums, and parking brake.
Steering:
Power steering pump, steering rack, tie rods, and steering column.
Suspension:
Front struts, rear shock absorbers, control arms, bushings, and anti-roll bars.
Electrical System:
Wiring diagrams, battery, alternator, starter, fuses, relays, and lighting.
Climate Control:
HVAC system diagnosis, blower motor, heater core, and A/C system (if equipped).
Body And Chassis:
Body panel alignment, rust repair, door mechanisms, and window regulators.
Diagnostic Troubleshooting:
Systematic fault finding procedures and common problem solutions.
Preventive Maintenance:
Detailed oil change intervals, filter replacements, spark plug replacement, and fluid level checks.
Routine Servicing:
Tune-up procedures, belt adjustments, and brake adjustments.
Engine Rebuild:
Step-by-step instructions for complete engine overhaul, including torque specifications and clearances.
Transmission Repair:
Overhaul procedures for both manual and automatic transmissions.
Brake System Repair:
Replacement of pads, rotors, calipers, and bleeding procedures.
Suspension Alignment:
Adjustment procedures for wheel alignment specifications.
Electrical Component Replacement:
Instructions for replacing common electrical parts like alternators, starters, and ignition coils.
Diagnostic Troubleshooting Guides:
Flowcharts and symptom-based troubleshooting for common issues.
Depth Of Coverage:
Comprehensive factory-level detail, suitable for professional technicians and experienced DIY enthusiasts.
Diagnostic Capabilities:
Detailed troubleshooting charts, diagnostic codes (if applicable for the era), and sensor data interpretation.
Repair Instructions:
Step-by-step instructions with diagrams and specifications for virtually all repair operations.
Special Tools:
Identification and usage instructions for specialized BMW tools required for specific procedures.
Engine Type 518:
Inline 4-cylinder, SOHC
Displacement 518:
1.8 Liters (1766 cc)
Bore Stroke 518:
89.0 mm x 80.0 mm
Compression Ratio 518:
8.0:1 or 8.3:1 (depending on market)
Fuel Delivery 518:
Single Solex 40ADDHE Downdraft Carburetor
Horsepower 518:
90 PS (89 hp; 66 kW) at 5500 rpm
Torque 518:
137 Nm (101 lb-ft) at 3500 rpm
Engine Code 518I:
M10 (with fuel injection)
Engine Type 518I:
Inline 4-cylinder, SOHC
Displacement 518I:
1.8 Liters (1766 cc)
Fuel Delivery 518I:
Bosch L-Jetronic Fuel Injection
Horsepower 518I:
102 PS (101 hp; 75 kW) at 5800 rpm
Torque 518I:
143 Nm (105 lb-ft) at 3500 rpm
0 60 Mph 518:
Approx. 12.5 seconds
Top Speed 518:
Approx. 170 km/h (106 mph)
0 60 Mph 518I:
Approx. 11.0 seconds
Top Speed 518I:
Approx. 180 km/h (112 mph)
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
70 Liters (18.5 US gallons)
Oil Change Interval:
Every 10,000 km (6,000 miles) or 12 months.
Oil Filter Replacement:
Every oil change.
Spark Plug Replacement:
Every 20,000 km (12,000 miles).
Air Filter Replacement:
Every 20,000 km (12,000 miles) or as needed based on operating conditions.
Fuel Filter Replacement:
Every 40,000 km (24,000 miles) for carbureted models; consult manual for fuel injected models.
Coolant Flush:
Every 2 years or 40,000 km (24,000 miles).
Engine Oil Specification:
API SG or SF, SAE 20W-50 or 15W-40 (check manual for specific climate recommendations).
Engine Oil Capacity:
Approx. 4.5 Liters (4.8 US quarts) with filter.
Coolant Type:
Ethylene glycol based antifreeze (50/50 mix with distilled water).
Power Steering Fluid:
ATF Dexron II or equivalent.
Manual Transmission Fluid:
API GL-4, SAE 75W-90 or 80W-90 gear oil.
Automatic Transmission Fluid:
ATF Dexron II or equivalent.
Common Problems:
Rust in wheel arches and sills, aging rubber hoses and bushings, carburetor issues on 518, early fuel injection component failures on 518i, heater control valve leaks, and potential valve stem seal wear leading to oil consumption.
Electrical Gremlins:
As with many vehicles of this era, wiring degradation and faulty grounds can lead to intermittent electrical issues.