Engine Mechanical:
Detailed overhaul, inspection, and repair procedures for engine components.
Engine Management:
Diagnosis and repair of DME (Digital Motor Electronics), sensors, actuators, and emission control systems.
Fuel System:
Fuel pump, injectors, fuel pressure regulator, and tank servicing.
Cooling System:
Radiator, water pump, thermostat, hoses, and fan assembly repair and maintenance.
Lubrication System:
Oil pump, oil filter, oil pan, and lubrication circuit troubleshooting.
Ignition System:
Ignition coils, spark plugs, and ignition timing diagnostics.
Transmission Manual:
SMG (Sequential Manual Gearbox) and manual gearbox repair, clutch replacement, and fluid specifications.
Transmission Automatic:
GM 5L475-E automatic transmission repair, torque converter servicing, and mechatronics diagnosis.
Drivetrain:
Driveshafts, CV joints, differential, and rear axle assembly repair.
Suspension Front:
MacPherson strut, control arms, bushings, and wheel bearing replacement.
Suspension Rear:
Multi-link suspension, control arms, springs, and shock absorber servicing.
Brakes Front:
Brake calipers, rotors, pads, and brake line replacement and bleeding procedures.
Brakes Rear:
Rear brake components, parking brake mechanism, and ABS/DSC sensor servicing.
Steering System:
Power steering pump, steering rack, tie rods, and steering column repair.
Electrical System Body:
Interior and exterior lighting, power windows, mirrors, door locks, and comfort access systems.
Electrical System Engine:
Starter motor, alternator, battery, and wiring harness diagnosis and repair.
Bodywork Exterior:
Panel removal and installation, bumper repair, and trim component servicing.
Bodywork Interior:
Seat removal, dashboard disassembly, and interior trim panel servicing.
Climate Control:
HVAC system diagnosis, blower motor, evaporator, and refrigerant servicing.
Safety Systems:
Airbag system diagnosis and SRS component replacement procedures.
Routine Maintenance:
Oil changes, filter replacements, fluid checks, and general inspection procedures.
Troubleshooting:
Diagnostic flowcharts, symptom-based troubleshooting guides, and fault code interpretations.
Component Replacement:
Step-by-step instructions for replacing major and minor vehicle components.
Major Overhaul:
Complete engine and transmission rebuild procedures.
Electrical Diagnostics:
Wiring diagrams, connector pinouts, and component testing methods.
Suspension Alignment:
Wheel alignment specifications and procedures.
Brake Bleeding:
Proper procedures for bleeding brake systems, including ABS units.
Diagnostic Tool Usage:
Information on using BMW-specific diagnostic tools (e.g., DIS, ISTA) for advanced diagnostics.
Depth:
Comprehensive and detailed, suitable for professional technicians and advanced DIYers.
Type:
5-Speed Automatic (with Steptronic)
Manual Gear Ratios:
1st: 4.06, 2nd: 2.40, 3rd: 1.57, 4th: 1.19, 5th: 1.00, 6th: 0.87, Reverse: 3.55
Automatic Gear Ratios:
1st: 3.23, 2nd: 2.19, 3rd: 1.42, 4th: 1.00, 5th: 0.73, Reverse: 2.25
Automatic Transmission Fluid:
BMW ATF LT-3 (e.g., Pentosin ATF1)
Manual Transmission Fluid:
BMW MTF LT-2 (e.g., Castrol Syntrans B)
Oil Change Interval:
BMW Condition Based Service (CBS) system, typically 10,000-15,000 miles or annually.
Spark Plug Replacement:
Approximately 60,000 miles (check manual for specific type)
Coolant Flush Interval:
Every 2-4 years or as indicated by CBS.
Power Steering Fluid Type:
Pentosin CHF 11S or equivalent
Coolant Type:
BMW Blue Coolant (G48 Ethylene Glycol based)
E46 Common Problems:
Rear subframe mounting points cracking, VANOS (Variable Valve Timing) solenoid issues, oil pan gasket leaks, coolant expansion tank cracks, CCV (Crankcase Ventilation) system failure.