Engine Mechanical:
Detailed repair and maintenance for M30 and M60 engines
Engine Electrical:
Engine management systems, ignition, fuel injection troubleshooting
Transmission:
Repair and maintenance for automatic transmissions (e.g., 4HP22, 4HP24)
Drivetrain:
Rear axle, driveshaft, differential service
Suspension:
Front and rear suspension systems, shock absorbers, control arms, bushings
Steering:
Power steering system, steering rack, tie rods
Brakes:
Hydraulic brake system, ABS (Anti-lock Braking System), rotor and pad replacement
Electrical System:
Comprehensive coverage of power distribution, fuses, relays, grounds, wiring diagrams
Body And Chassis:
Bodywork, door mechanisms, trim, structural components
HVAC:
Climate control system, A/C service, heater core replacement
Fuel System:
Fuel pump, injectors, fuel lines, tank service
Cooling System:
Radiator, water pump, thermostat, coolant specifications
Exhaust System:
Exhaust manifold, catalytic converter, mufflers
Wheels And Tires:
Tire pressure, wheel torque specifications
Scheduled Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid checks
Troubleshooting:
System troubleshooting guides, diagnostic procedures
Engine Repair:
Engine overhaul, gasket replacement, timing belt/chain service
Transmission Repair:
Transmission fluid and filter change, seal replacement
Brake Repair:
Brake pad and rotor replacement, brake fluid flush, ABS component service
Electrical Diagnostics:
Wiring diagram interpretation, component testing, fault finding
Body Repair:
Door panel removal, glass replacement, trim fitting
HVAC Service:
A/C system refrigerant charging, cabin filter replacement
Diagnostic Level:
Advanced diagnostics and troubleshooting, including electrical systems
Repair Complexity:
Covers everything from basic maintenance to complete engine and transmission rebuilds
Diagrams And Illustrations:
Step-by-step diagrams for all workshop procedures
Special Tools:
Mentions of required special tools for specific procedures (implied)
Primary Engine 735I 735Il
Engine Type:
3.5L Inline-6 SOHC 12-valve
Bore X Stroke:
92 mm x 86 mm
Compression Ratio:
8.0:1 or 8.5:1 (depending on market and year)
Horsepower:
Approx. 208-211 hp @ 5700 rpm
Torque:
Approx. 214-220 lb-ft @ 4000 rpm
Fuel System:
Bosch Motronic fuel injection
Primary Engine 740I 740Il
Engine Type:
4.0L V8 DOHC 32-valve
Bore X Stroke:
84 mm x 90 mm
Compression Ratio:
10.0:1
Horsepower:
Approx. 282 hp @ 5800 rpm
Torque:
Approx. 295 lb-ft @ 4500 rpm
Fuel System:
Bosch Motronic fuel injection
Engine Type:
5.0L V12 DOHC 24-valve
Bore X Stroke:
84 mm x 90 mm
Horsepower:
Approx. 296 hp @ 5200 rpm
Torque:
Approx. 332 lb-ft @ 3900 rpm
Fuel System:
Bosch Motronic DME 1.2 (dual ECU for each bank)
0 To 60 Mph:
Approx. 6.7 seconds (740i), 7.2 seconds (735i), 7.4 seconds (750iL)
Fuel Type:
Unleaded gasoline (Premium recommended)
Transmission Type 735I 740I:
4-speed automatic (e.g., ZF 4HP22, ZF 4HP24)
Transmission Type 750Il:
4-speed automatic (ZF 4HP24)
Manual Option:
No manual transmission was offered for the E32 chassis.
Transmission Modes:
Sport and Economy modes (on most models)
Transmission Fluid Type:
Dexron III (or equivalent, consult manual for precise BMW specification)
Transmission Fluid Capacity:
Approx. 7-9 liters (check specific model for exact capacity)
Wheelbase:
2,930 mm (735i, 740i, 750iL) / 3,060 mm (735iL, 740iL)
Length:
Approx. 4,960 mm (standard) / 5,090 mm (long wheelbase)
Curb Weight Approx:
1,700 kg (735i) to 1,950 kg (750iL)
Oil Change Interval:
Every 7,500-10,000 miles or annually (refer to manual for specific conditions)
Spark Plug Replacement:
Approx. 30,000 miles for standard plugs, 60,000 miles for iridium/platinum (check specific engine)
Coolant Flush:
Every 2-3 years or 30,000 miles
Transmission Fluid Change:
Every 40,000-60,000 miles
Engine Oil Type:
BMW Longlife-98 or equivalent (e.g., 5W-30, 10W-40 depending on climate and year, consult manual)
Engine Oil Capacity:
Approx. 6.5 liters (735i/740i) to 7.5 liters (750iL)
Coolant Type:
BMW Blue coolant (G48 Ethylene Glycol based) or equivalent
Brake Fluid Type:
DOT 3 or DOT 4 (consult manual)
Cooling System Failures:
Common issues include plastic coolant expansion tanks cracking, water pump failures, and heater control valve leaks.
Engine M60 Specific:
M60 V8 engines are known for potential Nikasil cylinder liner wear (especially earlier models) and Vanos unit issues.
Electrical Gremlins:
Corrosion on electrical connectors, failing onboard computer pixels, SRS warning lights.
Suspension Components:
Worn control arm bushings, sagging self-leveling rear suspension (if equipped) can be common.
Door Panel Sagging:
Interior door panel fabric can detach from the backing board.
Bmw Philosophy:
Known for 'The Ultimate Driving Machine', emphasizing performance, luxury, and engineering excellence.
E32 Introduction:
Introduced in 1986 as the successor to the E23 7 Series, setting new standards in luxury, technology, and design.
Key Innovations E32:
Long wheelbase ('iL' models), advanced electronics (e.g., onboard computer, optional navigation), V8 and V12 engines, dual-zone climate control.
Production Years:
1986-1994
Manufacturing Location:
Dingolfing Plant, Germany
