Market Segment:
Entry-level luxury sport sedan, known for its driving dynamics and build quality.
Competitors:
Audi A4, Mercedes-Benz C-Class, Lexus ES, Acura TL.
Driving Dynamics:
Renowned for balanced chassis, RWD platform, and engaging steering feel.
Build Quality:
Typical BMW solid construction and premium interior materials for its era.
Utility For Mechanics:
Provides the same detailed information and procedures used by certified BMW technicians.
Utility For Enthusiasts:
Empowers DIY owners to perform maintenance and repairs with confidence, saving on labor costs.
Systems Covered:
Engine mechanical, fuel system, ignition system, cooling system, exhaust system, clutch, transmission (manual and automatic), drivetrain, brakes (hydraulic and ABS), steering, suspension, wheels and tires, body, electrical system, HVAC, safety systems (SRS), diagnostics and troubleshooting.
Page Count:
Detailed page count not specified in provided information, but described as comprehensive.
Manual Type:
Service and Repair Workshop Manual
Format:
Likely a printed book or digital PDF, given the context of a sales business. (Specify if digital format is confirmed).
Engine Mechanical:
Detailed overhaul procedures for engine block, cylinder head, valvetrain, crankshaft, connecting rods, pistons, timing system (chain, guides, tensioner).
Fuel System:
Fuel injection system (Bosch Motronic 3.1), fuel pump, fuel filter, injectors, fuel pressure regulator, EVAP system.
Ignition System:
Ignition coils, spark plugs, crankshaft position sensor, camshaft position sensor, ignition timing.
Cooling System:
Radiator, water pump, thermostat, coolant hoses, fan clutch, expansion tank, bleeding procedures.
Exhaust System:
Exhaust manifolds, catalytic converter, mufflers, oxygen sensors.
Transmission:
Manual transmission (Getrag 260/5) and Automatic transmission (ZF 4HP22 EH) overhaul, clutch service, driveshaft, differential.
Brakes:
Front and rear disc brakes, brake fluid specifications, ABS (Anti-lock Braking System) diagnosis and repair, brake caliper overhaul, master cylinder.
Steering:
Power steering system, steering rack, tie rods, steering column.
Suspension:
Front suspension (MacPherson struts, control arms), rear suspension (multi-link), shock absorbers, springs, bushings, wheel alignment specifications.
Electrical System:
Wiring diagrams, starter, alternator, battery, lighting system, fuses, relays, instrument cluster, body control modules (BCM).
HVAC:
Air conditioning system (R-134a refrigerant), heater core, blower motor, climate control panel.
Safety Systems:
Supplemental Restraint System (SRS) - airbags, seatbelt pre-tensioners, diagnostic procedures.
Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement, brake pad and rotor replacement, tire rotation and balancing.
Troubleshooting:
Diagnostic flowcharts for common symptoms, error code interpretation, component testing procedures.
Repair:
Component removal and installation, overhaul procedures, component adjustments, system bleeding, calibration.
Diagnostics:
OBD-II diagnostic connector location, scan tool usage, sensor testing, actuator testing, DME (Digital Motor Electronics) diagnosis.
Depth Level:
Comprehensive, covering everything from basic scheduled maintenance to full engine and transmission rebuilds, including electrical system diagnostics and body repair.
File Format Detail:
If PDF, expect searchable text, printable pages, and high-resolution diagrams. (Confirm for specific product).
Print Quality Detail:
If printed, expect clear text and high-quality illustrations/diagrams, typical of professional workshop manuals.
Binding Type Detail:
If printed, likely a durable spiral-bound or perfect-bound format to lay flat for workbench use.
Paper Type Detail:
If printed, typically on thick, semi-gloss paper resistant to shop grime.
Oil Change Interval:
Typically every 7,500 to 10,000 miles (12,000 to 16,000 km) or annually, depending on driving conditions and oil type used.
Coolant Flush:
Every 2-3 years or 30,000 miles (48,000 km).
Spark Plug Replacement:
Approx. 60,000 miles (96,000 km) for standard plugs, or 100,000 miles (160,000 km) for long-life options.
Engine Oil:
BMW recommends synthetic oil, typically SAE 5W-30 or 5W-40, meeting BMW LL-01 or LL-98 specifications (check manual for exact spec).
Coolant:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) or equivalent, mixed 50/50 with distilled water.
Brake Fluid:
DOT 4 Synthetic Brake Fluid.
Transmission Fluid Manual:
GL-4 or GL-5 gear oil, SAE 75W-90 or 75W-140 (verify specific BMW spec).
Transmission Fluid Auto:
ZF TE-ML 11B (or equivalent Dexron III/VI in later applications, but original spec is preferred).
Cooling System Failures:
Plastic coolant expansion tanks can become brittle and crack; water pump impellers can degrade; thermostat housing leaks.
Oil Leaks:
Valve cover gasket, oil pan gasket, and oil filter housing gasket are common leak points.
Suspension Wear:
Control arm bushings (vibrations), rear shock mounts, ball joints, and tie rod ends can wear over time.
Electrical Issues:
ABS sensor failures, headlight leveling system issues, seized window regulators, blower motor resistor failure.
Vanos System:
Single VANOS (Variable Nockenwellensteuerung) on the M50B25TU can develop issues with the O-rings, leading to loss of low-end torque and rough idle.
Maintenance Schedule Detail
Comprehensive Schedule:
The manual will provide a detailed, mileage-based and time-based maintenance schedule covering all major service points.
