Market Segment:
Executive sedan
Positioning:
Known for its driving dynamics, build quality, and technological advancements of its era.
Competitors:
Mercedes-Benz W124 E-Class, Audi 100/200, Jaguar XJ, Lexus LS400
Design Philosophy:
A blend of BMW's signature sporting character with enhanced comfort and luxury for a mid-size executive car.
Engineering Focus:
Driver-centric engineering, robust powertrains, and sophisticated chassis.
Engine:
Diagnosis, repair, overhaul, tuning for all E34 engines
Fuel System:
Fuel injection (Motronic), fuel pumps, injectors, lines, tank
Ignition System:
Electronic ignition, coil packs, spark plugs, sensors
Cooling System:
Radiator, water pump, thermostat, hoses, fan clutch
Exhaust System:
Manifolds, catalytic converter, mufflers, pipes
Transmission:
Manual and automatic transmission service, overhaul, fluid changes
Drivetrain:
Driveshaft, CV joints, differential, axles
Suspension:
Front and rear suspension components, shock absorbers, springs, bushings
Steering:
Steering rack, power steering pump, steering column, linkages
Brakes:
Hydraulic system, ABS, calipers, rotors, pads, lines, master cylinder
Electrical System:
Wiring diagrams, battery, alternator, starter, fuses, relays, lighting
Climate Control:
HVAC system, A/C compressor, refrigerant, heater core, blower motor
Body:
Body panels, doors, windows, trim, locks, hinges, body repair
Interior:
Seats, dashboard, trim panels, instruments, controls
Diagnosis:
Troubleshooting guides, fault codes, diagnostic procedures
Routine Maintenance:
Oil changes, filter replacements, fluid checks, tune-ups
Component Removal Installation:
Step-by-step guides for all major components
Rebuilding Overhaul:
Detailed instructions for engine, transmission, and differential rebuilds
Troubleshooting:
Systematic approaches to diagnose and fix common and uncommon problems
Calibration Adjustment:
Adjustments for engine timing, idle speed, etc.
Depth:
Comprehensive (from basic maintenance to full engine/transmission rebuilds)
Diagnostic Capability:
Advanced diagnostic procedures and troubleshooting trees
Repair Specificity:
Detailed specifications and torque values for all fasteners and components
Wheelbase:
Approx. 111.7 inches (2837 mm)
Length:
Approx. 191.7 inches (4870 mm)
Width:
Approx. 70.2 inches (1783 mm)
Height:
Approx. 55.7 inches (1415 mm)
Curb Weight:
Approx. 3,400 - 3,700 lbs (1542 - 1678 kg), varies by engine and options
Gross Vehicle Weight Rating:
Varies by model, typically around 4,500 lbs (2041 kg)
Oil Change Interval:
Typically 5,000-7,500 miles or 12 months, whichever comes first (consult manual for specific engine).
Coolant Flush Interval:
Every 2 years or 30,000 miles.
Spark Plug Replacement:
100,000 miles for platinum plugs, sooner for standard.
Engine Oil Type:
BMW Longlife-98 or equivalent synthetic oil (e.g., 5W-30, 5W-40, 10W-40 depending on climate and engine).
Coolant Type:
BMW Blue coolant or equivalent ethylene glycol based coolant with corrosion inhibitors.
Brake Fluid Type:
DOT 4 brake fluid.
Oil Leaks:
Common from valve cover gaskets, oil pan gaskets, and rear main seals.
Cooling System:
Plastic coolant expansion tanks can become brittle and crack.
Suspension Bushings:
Worn control arm bushings and rear trailing arm bushings are common.
Fuel Pump:
Can become noisy or fail over time.
ABS Module:
ABS warning lights can indicate a failing ABS module or wheel speed sensor.
