Engine Mechanical:
Complete overhaul, diagnosis, timing, lubrication, cooling, exhaust
Engine Management:
Fuel injection, ignition system, DME (Digital Motor Electronics), VANOS, emissions control
Transmission Manual:
Clutch, gearbox, shifter linkage, torque specifications, repair procedures
Transmission Automatic:
Steptronic transmission (GM 5L40-E/5HP series), hydraulic controls, electronic control unit, fluid service
Drivetrain:
Driveshafts, CV joints, differential, wheel bearings
Suspension:
Front and rear suspension components, springs, shock absorbers, control arms, bushings, alignment specifications
Steering:
Power steering system, steering rack, tie rods, steering column, troubleshooting
Brakes:
Front and rear brake systems (disc), ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake fluid specifications, bleeding procedures, caliper/rotor replacement
Electrical System:
12V battery, alternator, starter motor, wiring diagrams, fuse box locations, component testing
Body And Chassis:
Body panels, doors, windows, sunroof, exterior trim, interior trim, sound deadening
Climate Control:
HVAC system, A/C compressor, refrigerant, heater core, blower motor, climate control unit diagnostics
Safety Systems:
Airbags, seatbelt pretensioners, SRS control module
Lighting:
Headlights, taillights, interior lighting, bulb replacement, aiming
Infotainment And Electronics:
Radio, navigation system (optional), instrument cluster, power accessories (windows, locks, mirrors)
Maintenance Tasks:
Oil change, filter replacement, spark plug replacement, belt inspection/replacement, fluid checks and top-offs
Diagnostic Procedures:
Troubleshooting common faults, using diagnostic scan tools (e.g., DIS, GT1 - not included, but procedures described), DTC interpretation
Repair Procedures:
Component removal and installation, major component overhauls, system-specific repairs
Adjustment Procedures:
Throttle body synchronization, idle speed adjustment, headlight aiming
Engine Mechanical Procedures:
Cylinder head removal/installation, piston and connecting rod service, crankshaft service, timing chain/guide replacement, oil pump removal/installation, oil pan gasket replacement.
Electrical Troubleshooting Procedures:
Detailed diagnostic flowcharts for common electrical faults, testing of sensors and actuators, wiring harness repair and continuity testing.
Chassis Component Replacement:
Ball joint replacement, control arm bushing replacement, wheel bearing replacement, shock absorber and strut replacement, steering rack seal replacement.
Body Repair Procedures:
Door panel removal, bumper cover replacement, headlight/taillight unit replacement, mirror replacement, sunroof mechanism servicing.
Depth:
Comprehensive, from basic scheduled maintenance to complete engine and transmission rebuilds, detailed diagnostics and electrical troubleshooting.
Diagnostic Tools Reference:
While not including the tools themselves, the manual describes diagnostic procedures that align with professional BMW diagnostic equipment like DIS or ISTA/P for fault code reading, module programming, and system calibration.
Engine:
M52B25TU (2.5L 24-valve DOHC Inline-6)
Horsepower 525I:
189 hp @ 5900 rpm (approx.)
Torque 525I:
181 lb-ft @ 3950 rpm (approx.)
Engine:
M52B28TU (2.8L 24-valve DOHC Inline-6)
Horsepower 528I:
190 hp @ 5500 rpm (approx.)
Torque 528I:
206 lb-ft @ 3950 rpm (approx.)
Engine:
M54B30 (3.0L 24-valve DOHC Inline-6)
Horsepower 530I:
225 hp @ 5900 rpm (approx.)
Torque 530I:
214 lb-ft @ 3500 rpm (approx.)
Engine:
M62B44TU (4.4L 32-valve DOHC V8)
Horsepower 540I:
282 hp @ 5400 rpm (approx.)
Torque 540I:
324 lb-ft @ 3600 rpm (approx.)
Injection Type:
Sequential Multi-Port Fuel Injection (SFI)
Recommended Fuel:
Premium Unleaded Gasoline (91+ octane)
ECU:
Bosch DME (e.g., MS42, MS43 for I6; MS43, MS43.1 for V8)
Oil Change Interval:
Typically 7,500 - 15,000 miles or 12-24 months, depending on driving conditions and oil type (check Condition Based Service - CBS - on vehicles so equipped).
Transmission Fluid Service:
BMW historically stated 'lifetime' fill for automatic transmissions, but recommended inspection and potential replacement around 50,000-100,000 miles as a preventative measure, especially for critical components.
Coolant Change:
Every 2-4 years or as indicated by the service interval indicator. Use BMW Blue or Pink Antifreeze.
Engine Oil Type:
API SN/SP, ACEA A3/B4 or BMW LL-01 approved synthetic oil. Viscosity typically 0W-30, 5W-30, or 5W-40 depending on climate.
Coolant Type:
BMW Blue (G48 ethylene glycol based) or BMW Pink (40th Anniversary coolant) if updated, mixed 50/50 with distilled water.
Brake Fluid Type:
DOT 4, Low Viscosity (LV), BMW part number 83 23 0 382 042 or equivalent.
Power Steering Fluid Type:
Pentosin CHF 11S or equivalent hydraulic fluid.
Automatic Transmission Fluid Type:
GM Lifeguard Fluid 5 (for GM 5L40-E) or ZF LifeguardFluid 5/6 (for ZF transmissions). Verify specific transmission fluid.
Common Problems:
Cooling system issues (water pump, thermostat, expansion tank leaks), VANOS solenoid failure, oil leaks (valve cover, oil pan gaskets), fuel pump failure, ABS sensor failure, window regulator failure, misfires on M54 engines (e.g., CCV system issues).