Engine Mechanical:
Detailed rebuild procedures, component specifications, timing belt/chain service, cylinder head, piston, crankshaft, camshaft, valve train.
Engine Fuel System:
Bosch L-Jetronic fuel injection system diagnosis and repair, fuel pump, injectors, fuel pressure regulator, sensors (AFM, TPS, CTS, O2).
Engine Ignition System:
Ignition timing, spark plugs, coil packs, distributor (if applicable), ignition control module diagnostics.
Transmission Manual:
Clutch operation, gearbox overhaul, shift linkage, lubrication, common issues.
Transmission Automatic:
Transmission fluid service, hydraulic control, valve body diagnosis, torque converter, shift solenoids (for applicable models).
Drivetrain:
Driveshaft, universal joints, differential service and overhaul, rear axle components.
Brakes System:
Brake fluid specifications, hydraulic system components (master cylinder, calipers, wheel cylinders), ABS system (if equipped), rotor and pad replacement, bleeding procedures.
Suspension System:
Front and rear suspension component replacement (struts, shocks, control arms, bushings, ball joints), alignment specifications.
Steering System:
Power steering system diagnosis, pump, rack and pinion, steering linkage, fluid type and capacity.
Electrical System Power:
Battery, charging system (alternator), starter motor, wiring diagrams, fuses, relays.
Electrical System Lighting:
Headlights, taillights, interior lighting, bulb types and replacement.
Electrical System Accessories:
Wipers, horn, power windows, central locking (if equipped), heated seats, sunroof (if equipped).
HVAC System:
Heating, ventilation, and air conditioning system diagnosis, refrigerant types, compressor, blower motor, control head.
Body And Chassis:
Body panel removal and installation, door mechanisms, interior trim, glass replacement, rust prevention and repair basics.
Diagnostic Troubleshooting:
Systematic troubleshooting guides for common and complex issues, diagnostic charts, fault code interpretation (where applicable).
Routine Maintenance:
Oil changes, filter replacements (oil, air, fuel), spark plug replacement, fluid checks and top-offs, tire rotation.
Preventative Maintenance:
Scheduled maintenance tasks, component inspections, lubrication points.
Major Repairs:
Engine rebuilds, transmission overhauls, brake system overhauls, suspension and steering system replacements.
Component Replacement:
Step-by-step instructions for replacing individual parts within all covered systems.
Torque Specifications:
Detailed torque values for critical fasteners across all vehicle systems.
Wiring Diagrams:
Comprehensive electrical schematics for all vehicle systems.
Depth Level:
Full Workshop Level - Covers everything from basic maintenance to complete engine and transmission rebuilds, including advanced diagnostics and electrical troubleshooting.
Oil Change Interval Km:
Every 10,000-15,000 km or annually.
Air Filter Replacement:
Every 20,000-30,000 km or as needed based on conditions.
Fuel Filter Replacement:
Every 40,000-60,000 km.
Spark Plug Replacement:
Every 40,000-60,000 km (depending on plug type).
Engine Oil Type:
API SG or SH, SAE 15W-40 or 20W-50 (depending on climate and manufacturer recommendation, consult manual for exact specs).
Coolant Type:
BMW Blue/Green Antifreeze (Ethylene Glycol based) mixed 50/50 with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4.
Common E28 Issues:
Fuel injector seal leaks, coolant leaks (especially around thermostat housing and head gasket), starter solenoid issues, aging rubber bushings (suspension/exhaust), fuel pump reliability, ABS sensor failures (if equipped).
M30 Engine Considerations:
Can develop oil leaks from various seals (valve cover, oil pan, front main seal). Timing chain tensioner should be monitored. Valve stem seals can degrade over time, leading to oil consumption.
