Engine Mechanical:
Complete overhaul, component testing, specifications
Fuel System:
L-Jetronic fuel injection, fuel pump, injectors, fuel pressure regulator
Ignition System:
Electronic ignition, coil, distributor, spark plugs
Transmission Manual:
Service, overhaul, clutch, shift linkage
Transmission Automatic:
Service, overhaul, torque converter, hydraulic system
Drivetrain:
Driveshaft, universal joints, differential, axle shafts
Suspension Front:
MacPherson struts, control arms, anti-roll bar, bushings
Suspension Rear:
Semi-trailing arms, shock absorbers, springs, bushings
Steering System:
Power steering, steering rack, pump, linkage
Brake System:
Front ventilated discs, rear discs, ABS (optional), hydraulic system, bleeding procedures
Electrical System:
Wiring diagrams, component testing, fuses, relays
Climate Control:
HVAC system, blower motor, heater core, A/C system (refrigerant handling)
Body And Trim:
Exterior panels, interior trim, glass replacement
Body Hardware:
Doors, hood, trunk, hinges, latches
Lighting System:
Headlights, taillights, interior lighting, bulb replacement
Instrumentation:
Gauges, warning lights, dashboard components
Routine Maintenance:
Oil change, filter replacement, spark plug replacement, fluid checks
Troubleshooting:
Diagnostic charts, common fault identification
Engine Repair:
Head gasket replacement, piston ring replacement, valve adjustment
Transmission Repair:
Gearbox overhaul, seal replacement, clutch replacement
Brake System Repair:
Brake pad/disc replacement, caliper overhaul, brake line replacement
Electrical Diagnostics:
Component testing, wiring repair, sensor diagnosis
Suspension Rebuild:
Component replacement, alignment procedures
Bodywork Repair:
Dent removal, panel replacement, rust repair guidance
Diagnostics And Testing:
Component testing procedures, diagnostic fault codes (if applicable)
Depth Of Coverage:
Comprehensive factory-level detail for professional technicians and advanced DIYers
Special Tools:
Identification and use of BMW-specific special tools
Torque Specifications:
Precise torque values for all critical fasteners
Clearances And Tolerances:
Engine component clearances, bearing tolerances
Oil Change Interval:
Typically every 5,000-7,500 miles or 6-12 months (consult manual for exact)
Major Service Items:
Spark plugs, air filter, fuel filter, brake fluid, coolant flush
Engine Oil Type 535I M535I:
API SG or SH, SAE 15W-40 or 20W-50 (refer to manual for specific ambient temperature recommendations)
Coolant Type:
Ethylene glycol based, BMW Blue or equivalent (50/50 mix with distilled water)
Transmission Fluid Manual:
GL-4 Gear Oil (e.g., SAE 75W-90 or 80W-90)
Transmission Fluid Automatic:
Dexron II or equivalent
Brake Fluid Type:
DOT 3 or DOT 4
Common Wear Items:
Bushings (control arms, sway bars), vacuum hoses, fuel injectors, timing chain guides (wear over time)
Electrical Gremlins:
Older wiring insulation degradation, faulty grounds, fuel pump relays
Rust Prone Areas:
Wheel arches, rocker panels, battery tray area
Cooling System Maintenance:
Regular coolant flushes and inspection of hoses and radiator are crucial
