Engine Mechanical:
Detailed overhaul procedures, component testing, timing, lubrication system.
Engine Management:
Fuel injection (Bosch Motronic), ignition system, sensor and actuator diagnostics.
Cooling System:
Radiator, thermostat, water pump, coolant flow, pressure testing.
Exhaust System:
Component identification, replacement procedures, emissions control.
Fuel System:
Fuel pump, injectors, fuel lines, fuel pressure testing, tank and sender unit.
Transmission Manual:
Gearbox overhaul, clutch operation, shift linkage adjustment, fluid specifications.
Transmission Automatic:
Automatic transmission overhaul (if applicable to 316i variant), torque converter, fluid type.
Drivetrain:
Driveshafts, universal joints, differential, axle shafts.
Suspension Front:
MacPherson struts, control arms, ball joints, bushings, steering knuckle.
Suspension Rear:
Semi-trailing arms, shock absorbers, springs, bushings, differential mounting.
Steering System:
Steering rack, tie rods, power steering pump (if equipped), steering column.
Brake System Front:
Disc brake calipers, pads, rotors, brake lines.
Brake System Rear:
Disc or drum brake configuration, parking brake mechanism.
Wheel Bearings:
Inspection, replacement procedures.
Electrical System Lighting:
Headlights, taillights, interior lighting, bulb types, wiring diagrams.
Electrical System Charging:
Alternator, voltage regulator, battery testing and replacement.
Electrical System Starting:
Starter motor, ignition switch, starting circuit.
Gauges And Instruments:
Speedometer, tachometer, fuel gauge, temperature gauge, warning lights.
Wiper System:
Wiper motor, linkage, blades, washer system.
HVAC System:
Heater core, blower motor, air conditioning components (if equipped), climate controls.
Body And Chassis:
Body panel removal/installation, door mechanisms, hood, trunk lid.
Interior Trim:
Seat removal, dashboard components, headliner, door panels.
Glass And Seals:
Windshield, side glass, rear glass, weatherstripping.
Routine Maintenance:
Oil changes, filter replacements, spark plug checks, fluid top-ups, belt inspections.
Engine Overhaul:
Piston and ring replacement, cylinder head reconditioning, crankshaft and bearing service.
Transmission Repair:
Gearbox rebuild, synchromesh replacement, clutch disc and pressure plate replacement.
Brake System Repair:
Brake pad and rotor replacement, caliper servicing, brake bleeding, master cylinder replacement.
Suspension Component Replacement:
Shock absorber, strut, control arm, ball joint, and bushing replacement.
Electrical Troubleshooting:
Wiring diagram interpretation, fault finding for starting, charging, and lighting systems.
Fuel System Diagnostics:
Injector testing, fuel pump pressure checks, idle control valve troubleshooting.
Ignition System Adjustment:
Spark plug gap setting, ignition timing verification (where applicable).
Body And Interior Repairs:
Dent removal, panel alignment, interior trim restoration, window regulator repair.
Heating And Cooling System Repair:
Heater core replacement, A/C system servicing (if applicable), control panel repair.
Wheel Alignment:
Specifications and procedures for front and rear wheel alignment.
Depth:
Comprehensive, from basic maintenance to complete engine and transmission rebuilds.
Diagnostic Codes:
Likely includes diagnostic procedures, although specific OBD-I codes might be limited for this era.
Torque Specifications:
Extensive torque values for all critical fasteners.
Wiring Diagrams:
Detailed electrical schematics for various systems.
Special Tools:
Identification of any BMW-specific tools required for certain procedures.
Oil Change Interval:
Typically every 7,500 - 10,000 miles or 12 months (refer to manual for specific recommendation).
Air Filter Replacement:
Every 15,000 - 30,000 miles or as needed based on condition.
Spark Plug Replacement:
Every 30,000 - 60,000 miles (depending on plug type).
Timing Belt Replacement:
This engine uses a timing chain, not a belt, requiring less frequent replacement but eventual tensioner and guide checks.
Engine Oil:
API SG or SH, SAE 15W-40 or 20W-50 (check manual for specific temperature range recommendations).
Coolant:
Ethylene glycol-based antifreeze, 50/50 mix with distilled water.
Brake Fluid:
DOT 3 or DOT 4 brake fluid (check manual).
Power Steering Fluid:
Dexron II or equivalent (if equipped with power steering).
E30 Common Problems:
Rust (especially wheel arches, rocker panels, strut towers), cooling system leaks (cracked plastic expansion tank), fuel pump failures, starter motor issues, seized heater blowers, worn suspension bushings.
M10 Engine Specifics:
Generally robust, but can suffer from oil leaks from valve cover and oil pan gaskets, potential timing chain wear over high mileage.