Engine:
Full engine repair and overhaul, including diagnostics, disassembly, assembly, timing, lubrication, cooling, fuel delivery, ignition, emissions, and exhaust systems for various petrol and diesel engines (e.g., N43, N52, N54, N55, M54, M57, N47).
Transmission:
Manual and automatic transmission diagnosis, repair, and overhaul, including fluid specifications, torque converter service, mechatronics unit repair (for automatics), and clutch replacement.
Drivetrain:
Front and rear axle, differential, driveshafts, CV joints, and wheel bearings.
Suspension:
Front and rear suspension components, shock absorbers, struts, springs, control arms, sway bars, bushings, wheel alignment specifications, and troubleshooting.
Brakes:
Brake system diagnosis, repair, and maintenance, including brake pads, rotors, calipers, hydraulic lines, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), parking brake, and bleeding procedures.
Steering:
Power steering system diagnosis, repair, fluid specifications, steering rack, tie rods, and power steering pump.
Electrical System:
Comprehensive electrical diagrams, fuse box locations and functions, battery service, alternator, starter motor, lighting systems (headlights, taillights, interior lights), power windows, central locking, wipers, and horn.
Bodywork:
Exterior and interior trim removal and installation, door mechanisms, hood and trunk operation, bumpers, mirrors, seats, and body panel repair procedures.
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system diagnosis, refrigerant handling, compressor, blower motor, heater core, evaporator, and climate control module service.
Comfort Systems:
Seats, interior trim, door panels, dashboard components, and sound system integration.
Safety Systems:
Airbag system diagnosis and replacement, seat belt mechanisms, and safety restraint systems.
Diagnostics:
OBD-II (On-Board Diagnostics) troubleshooting, error code explanations, and diagnostic procedures for various electronic control units (ECUs).
Routine Maintenance:
Oil changes, filter replacements (oil, air, cabin, fuel), spark plug replacement, brake fluid flushes, coolant flushes, and tire rotations.
Component Replacement:
Step-by-step instructions for replacing major components like alternators, starters, water pumps, fuel pumps, ignition coils, sensors, headlights, taillights, and body panels.
Troubleshooting Guides:
Detailed troubleshooting flowcharts and diagnostic trees for common and uncommon problems across all vehicle systems.
Rebuilding Procedures:
Complete engine and transmission rebuilding procedures with torque specifications and clearances.
Wiring Diagrams:
Extensive and detailed electrical wiring diagrams for all vehicle systems, crucial for electrical troubleshooting and repair.
Special Tools:
Identification and usage instructions for specialized tools required for specific BMW repairs.
Timing Belt Chain Procedures:
Detailed procedures for timing chain inspection and replacement on applicable engines (e.g., N52, N54, N55, N43, N47).
Emission System Repair:
Coverage for catalytic converters, oxygen sensors, evaporative emission control (EVAP) systems, and emissions control modules.
Wheel Alignment And Balancing:
Specifications for wheel alignment angles and procedures for tire balancing and replacement.
Lighting And Lamps:
Replacement of headlights, taillights, fog lights, and interior lighting, including any associated wiring and control modules.
Sensor Replacement:
Detailed guidance on replacing various sensors such as ABS sensors, crankshaft position sensors, camshaft position sensors, mass air flow sensors, and oxygen sensors.
Computer Module Diagnostics:
Information on diagnosing and potentially replacing ECUs, such as the Engine Control Module (ECM), Transmission Control Module (TCM), and Body Control Module (BCM).
Body Panel Alignment:
Guidelines for the adjustment and alignment of doors, hood, trunk, and fenders for proper fit and sealing.
Refrigerant Handling:
Guidelines for safe and compliant handling of R134a refrigerant for the HVAC system, including evacuation and recharging procedures.
Fuel System Service:
Procedures for fuel filter replacement, fuel pump testing, and injector cleaning/replacement.
Brake System Bleeding:
Detailed instructions for bleeding the brake system, including specific sequences for vehicles equipped with ABS/DSC.
Technical Depth:
Comprehensive, covering everything from basic fluid checks and filter changes to complete engine and transmission overhauls, advanced electrical diagnostics, and bodywork repairs.
Engine Variants Covered:
Covers a wide range of inline-4 and inline-6 petrol engines (e.g., 323i, 325i, 328i, 330i, 335i) and diesel engines (e.g., 320d, 323d, 325d, 330d, 335d). Specific engine codes like N43B18, N43B20, N52B25, N52B30, N54B30, N55B30, M57D30, N47D20 are typically detailed.
Performance Data:
Includes specifications for horsepower, torque, engine displacement (e.g., 2.0L, 2.5L, 3.0L), bore, stroke, compression ratios, and engine management system details for various engine configurations.
Fuel System:
Details on fuel injection systems (e.g., direct injection, port injection), fuel pressure, fuel pump specifications, injectors, and exhaust gas recirculation (EGR) systems.
Engine Management System:
Details on the Bosch Motronic or similar engine management systems, including diagnostic trouble codes (DTCs) and sensor data interpretation.
Cooling System:
Coverage of the engine cooling system, including radiator, water pump, thermostat, cooling fan, and coolant flow paths. Details on electric water pump replacement and bleeding procedures.
Lubrication System:
Information on the oil pump, oil pan, oil filter, oil passages, and lubrication requirements for engine components.
Recommended Service Intervals:
The manual details BMW's Condition Based Service (CBS) system, outlining typical intervals for oil changes (e.g., 10,000-15,000 miles or 12-24 months), brake fluid (every 2 years), and other major services based on driving conditions.
Engine Oil Specification:
Specifies BMW Longlife-01 (LL-01) or Longlife-04 (LL-04) compliant synthetic engine oils (e.g., SAE 0W-30, 5W-30, 5W-40 depending on engine and climate).
Coolant Specification:
BMW Blue Antifreeze/Coolant (G48 type) or equivalent, mixed 50/50 with distilled water.
Brake Fluid Specification:
DOT 4 Low Viscosity (LV) brake fluid.
Transmission Fluid Specifications:
Specific ATF (Automatic Transmission Fluid) like Pentosin ATF1 or ZF LifeguardFluid 5/6 for automatic transmissions, and GL-4/GL-5 gear oil for manual transmissions and differentials.
Common Issues Covered:
Addresses common issues specific to this generation, such as water pump failure (especially electric pumps on later models), ignition coil issues, VANOS system problems, oil leaks from valve cover gaskets and oil filter housings, power steering pump failures, and potential issues with the diesel particulate filter (DPF) on diesel models.
Engine Oil Capacity:
Specific oil capacities for various engine displacements (e.g., 6.5 liters for a 3.0L inline-6, 5.5 liters for a 2.0L inline-4).
Coolant Capacity:
Approximate coolant capacities, often around 8-9 liters.
Transmission Fluid Capacity:
Specific capacities for manual and automatic transmissions, often around 1.5-2.5 liters for manuals and 7-9 liters for automatics (pan removal).