Engine:
Complete engine diagnosis, overhaul, and component-level repair (M40, M42, M43, M50, M52, S50, S52 engines)
Fuel System:
Fuel injection systems (Bosch Motronic), fuel pump, injectors, pressure regulators, EVAP
Exhaust System:
Catalytic converters, mufflers, exhaust manifolds, oxygen sensors
Cooling System:
Radiator, water pump, thermostat, coolant hoses, electric cooling fan
Ignition System:
Spark plugs, ignition coils, distributor (early models), crank/cam sensors
Transmission Manual:
Clutch, gear shift linkage, gearbox overhaul and repair (Getrag 240, Getrag 260)
Transmission Automatic:
ZF 4HP22, ZF 4HP24, ZF 5HP18, ZF 5HP19 overhaul and repair
Drivetrain:
Driveshafts, universal joints, CV joints, rear axle differentials
Suspension:
Front struts, control arms, ball joints, rear multi-link suspension, subframes
Steering:
Power steering pump, steering rack, tie rods, steering column
Brakes Front:
Brake calipers, rotors, pads, ABS system components
Brakes Rear:
Brake calipers, rotors, pads, parking brake mechanism
Body And Chassis:
Body panel removal/installation, door mechanisms, glass replacement, rust repair techniques
Electrical System:
Wiring diagrams, fuse box locations, starter, alternator, battery
Lighting System:
Headlights, taillights, interior lighting, fog lights
Climate Control:
HVAC system diagnosis, blower motor, heater core, A/C compressor, refrigerant recharge
Instrumentation:
Dashboard, gauges, warning lights, onboard computer (OBC) diagnostics
Infotainment:
Radio, CD player, speaker replacement
Safety Systems:
Airbag system diagnosis and replacement (where applicable)
Scheduled Maintenance:
Detailed maintenance schedules and procedures
Routine Inspections:
Visual checks for leaks, wear, and damage
Fluid Changes:
Engine oil, transmission fluid, coolant, brake fluid, power steering fluid
Filter Replacements:
Oil filter, air filter, fuel filter, cabin filter
Brake Service:
Pad and rotor replacement, caliper service, brake fluid bleeding
Engine Repair:
Head gasket replacement, piston ring replacement, valve stem seals
Transmission Overhaul:
Complete rebuild procedures for both manual and automatic transmissions
Suspension Repair:
Component replacement (shocks, struts, control arms, bushings)
Electrical Troubleshooting:
Diagnostic procedures for common electrical faults
Air Conditioning Service:
Refrigerant system servicing, leak detection, component replacement
Timing Belt Replacement:
Specific procedures for different engine variants
Drive Belt Replacement:
Serpentine belt and tensioner replacement
Wheel Alignment:
Specifications and adjustments
Diagnostics And Troubleshooting:
Fault codes, symptom-based diagnosis, repair strategies
Torque Specifications:
Detailed torque values for all fasteners
Depth:
In-depth, factory-level technical information
Diagnostics:
Advanced diagnostics, including OBD-II (where applicable) and specific BMW diagnostic procedures
Rebuilds:
Complete engine and transmission rebuild procedures
Wiring Diagrams:
Comprehensive and detailed electrical wiring schematics
Oil Change:
Every 7,500-10,000 miles or annually, whichever comes first (check condition)
Air Filter:
Inspect every 15,000 miles, replace as needed (or every 30,000 miles)
Fuel Filter:
Replace every 30,000 miles
Coolant Flush:
Every 2-3 years or 30,000 miles
Brake Fluid:
Flush every 2 years (DOT 4)
Spark Plugs:
Platinum plugs: 100,000 miles; Standard plugs: 30,000 miles (check specific engine)
Transmission Fluid Auto:
Inspect regularly, change typically around 60,000-100,000 miles (or as per manual; lifetime fluid is debatable)
Transmission Fluid Manual:
Check level periodically, change every 60,000-100,000 miles
Engine Oil:
SAE 5W-30 or 10W-30 synthetic or semi-synthetic meeting BMW Longlife-98 or API SJ/SL specifications
Coolant:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) or equivalent
Power Steering Fluid:
Pentosin CHF 11S or Dexron III ATF (check manual for specific variant)
Transmission Fluid Auto:
ZF LifeguardFluid 5 (for 5-speed) or Dexron III ATF (for 4-speed)
Transmission Fluid Manual:
SAE 75W-90 synthetic gear oil (API GL-4 or GL-5)
Cooling System:
Plastic coolant expansion tanks can become brittle and crack; water pump failure common
Oil Leaks:
Valve cover gasket, oil pan gasket, oil filter housing gasket are common failure points
Suspension:
Control arm bushings (Meyle HD replacements recommended), rear subframe bushings, shock mounts
Electrical:
ABS/ASC sensor failures, blower motor resistor, Instrument cluster pixels (LCD degradation)
Vanos:
Variable Valve Timing system solenoids and seals can fail on M50/M52/S52 engines, leading to rough idle and power loss
Clutch Slave Cylinder:
External clutch slave cylinder can leak
Door Panels:
Headliner sag, door panel vapor barriers failing
