Segment:
Executive/Luxury Sedan
Target Audience:
Discerning buyers prioritizing performance, luxury, and driving dynamics
Key Competitors:
Mercedes-Benz E-Class (W124), Audi 100/A6 (C3/C4), Jaguar XJ, Lexus LS
Driving Dynamics:
Renowned for its balanced chassis, precise steering, and engaging driving experience characteristic of BMW
Powertrain:
Smooth and powerful M30 inline-six engine, offering strong torque and refined performance
Build Quality:
Exceptional build quality and durability, reflecting BMW's engineering standards of the era
Interior:
Driver-focused cockpit, high-quality materials, comfortable seating, and a sophisticated ambiance
Engine Mechanical:
Detailed overhaul, repair, and troubleshooting for the M30B35 engine (cylinder head, block, pistons, crankshaft, camshaft, timing, lubrication, cooling)
Engine Management And Fuel:
Bosch Motronic engine management system, fuel injection, fuel pump, fuel lines, fuel tank, emission controls (catalytic converter, EGR), air intake system, idle control
Transmission Manual:
Service and repair of manual transmissions (clutch, gearbox, shifter mechanism, driveshafts, differential)
Transmission Automatic:
Service and repair of automatic transmissions (e.g., ZF 4HP22, torque converter, valve body, transmission control module, fluid service)
Brakes:
Front and rear brake systems (discs, pads, calipers, hydraulic lines, master cylinder, ABS system (Bosch ABS II or III))
Suspension And Steering:
Front and rear suspension (struts, control arms, bushings, springs, shock absorbers), power steering system (pump, rack and pinion, hoses), wheel alignment specifications
Electrical System:
Comprehensive wiring diagrams, battery, alternator, starter, lighting system, ignition system, sensors, actuators, fuse box layouts, diagnostic connectors
Body And Chassis:
Body panels, doors, windows, sunroof (if equipped), interior trim, chassis components, rust prevention, repair procedures
HVAC:
Heating, ventilation, and air conditioning system (compressor, condenser, evaporator, blower motor, climate control module, refrigerant servicing)
Comfort And Convenience:
Power windows, power seats, central locking, mirrors, onboard computer (if equipped), radio, speakers
Routine Maintenance:
Oil changes, filter replacements (oil, air, fuel), spark plug replacement, coolant flush, brake fluid flush, belt inspection and replacement
Troubleshooting:
Diagnostic flowcharts, symptom-based troubleshooting for engine performance, electrical issues, transmission problems, and other common faults
Component Replacement:
Step-by-step instructions for replacing major components like water pump, thermostat, alternator, starter, fuel injectors, brake master cylinder, clutch slave cylinder, etc.
Engine Overhaul:
Detailed procedures for complete engine disassembly, cleaning, inspection, measurement, and reassembly with torque specifications
Transmission Overhaul:
Detailed procedures for manual and automatic transmission disassembly, inspection, repair, and reassembly
Electrical Diagnostics:
Using multimeter, interpreting wiring diagrams, diagnosing sensor and actuator faults, ABS troubleshooting
Depth:
Comprehensive: Covers from basic maintenance to complete engine and transmission rebuilds, including detailed diagnostics and repair procedures
Diagnostic Capabilities:
Detailed information on diagnostic trouble codes (DTCs) for the Motronic system and ABS, along with diagnostic procedures
Special Tools:
Identifies and describes the use of BMW-specific special tools required for certain repair procedures
Length:
Approx. 4,720 mm (185.8 inches)
Width:
Approx. 1,751 mm (68.9 inches)
Height:
Approx. 1,412 mm (55.6 inches)
Curb Weight:
Approx. 1,550 - 1,650 kg (3,417 - 3,638 lbs) depending on transmission and options
Gross Vehicle Weight Rating:
Approx. 2,050 kg (4,519 lbs)
Towing Capacity:
Not typically specified or recommended for this model's design intent
Oil Change Interval:
Typically 10,000 - 15,000 miles (15,000 - 25,000 km) or annually, depending on driving conditions and oil used. Check manual for specifics.
Spark Plug Replacement:
Around 60,000 miles (100,000 km), depending on spark plug type (e.g., copper vs. platinum/iridium)
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles
Transmission Fluid Change:
Manual: Inspect, change if contaminated or as per severe duty schedule. Automatic: Typically 50,000 - 100,000 miles, or every 4-5 years.
Brake Fluid:
DOT 4 (low viscosity recommended for ABS systems)
Power Steering Fluid:
ATF Dexron II or III
Cooling System:
Cracked plastic coolant expansion tank, failing water pump, thermostat issues, radiator leaks (common on older vehicles)
Engine M30:
Oil leaks from valve cover gasket and oil pan, oil separator issues, vacuum leaks, fuel injector seal leaks, potential head gasket issues if overheated
Electrical:
Wiring harness degradation (especially around engine bay), failing window regulators, headlight switch issues, ABS sensor failures
Suspension:
Worn control arm bushings, trailing arm bushings, ball joints, shock absorber fatigue
Interior:
Headliner sagging, dashboard cracks, seat bolster wear, OBC (On-Board Computer) pixelation or failure
