Segment:
Compact Executive Sedan/Coupe/Convertible
Target Audience:
Enthusiasts, DIY mechanics, professional repair shops working on E30 3 Series models.
Competitors:
Mercedes-Benz W201 (190E), Audi 80/90, Alfa Romeo 75, Ford Sierra, Opel Kadett/Vectra.
Design Philosophy:
Focus on driving dynamics, balanced chassis, driver engagement, and build quality.
Value Proposition:
Provides essential repair and maintenance information for owners and technicians, enabling cost-effective upkeep and ensuring longevity of the classic E30 platform.
Convenience:
Instant download eliminates shipping delays and costs, allowing immediate access to critical repair data.
Engine Mechanical:
Engine overhaul, cylinder head, block assembly, crankshaft, pistons, connecting rods, camshafts, timing belts/chains, valve train.
Engine Fuel System:
Fuel injection systems (Bosch L-Jetronic), fuel pump, fuel injectors, fuel lines, fuel pressure regulator, fuel tank.
Engine Ignition System:
Ignition coil, distributor, spark plugs, ignition timing, control module.
Cooling System:
Radiator, water pump, thermostat, coolant hoses, fan clutch, heater core.
Exhaust System:
Exhaust manifold, catalytic converter, muffler, exhaust pipes, oxygen sensor.
Transmission Manual:
Clutch assembly, gearbox overhaul, gear selection, driveshafts, differential.
Transmission Automatic:
Torque converter, gearbox overhaul, hydraulic controls, shift solenoids, cooling lines.
Brake System:
Front and rear disc brakes, brake calipers, brake pads, rotors, master cylinder, brake lines, parking brake.
Suspension System:
Front MacPherson struts, rear semi-trailing arms, shock absorbers, coil springs, bushings, anti-roll bars.
Steering System:
Steering rack, power steering pump, steering column, tie rods, steering linkage.
Electrical System Overview:
Wiring diagrams, fuse box locations, relay assignments, battery, alternator, starter motor.
Lighting System:
Headlights, taillights, interior lighting, bulb replacement, aiming.
Body And Chassis:
Body panel removal/installation, chassis repair, rust prevention, underbody coatings.
Interior Trim:
Dashboard removal, door panel replacement, seat removal, headliner repair.
Heating Ventilation Air Conditioning:
HVAC controls, blower motor, A/C compressor, refrigerant system, heater core, cabin air filter (if applicable).
Diagnostics And Troubleshooting:
General troubleshooting guides, symptom-based diagnostics, common fault finding.
Routine Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, belt inspections.
Major Repairs:
Engine rebuilding, transmission overhauls, suspension component replacement, brake caliper rebuilds.
Component Replacement:
Step-by-step instructions for replacing specific parts like alternators, starters, water pumps, fuel injectors.
Electrical Diagnosis:
Testing circuits, diagnosing shorts and open circuits, sensor testing.
Wheel Alignment:
Specifications and procedures for checking and adjusting camber, caster, and toe.
Timing Adjustment:
Ignition timing setting procedures.
Depth:
Comprehensive (covers basic maintenance to full engine and transmission rebuilds).
Detail Level:
Detailed diagrams, torque specifications, special tool recommendations.
Oil Change Interval:
Every 7,500-10,000 miles or annually, whichever comes first (consult manual for precise recommendations).
Spark Plug Replacement:
Every 30,000 miles (typical for period).
Timing Belt Replacement:
Not applicable to M10 engine (uses timing chain).
Engine Oil:
API SG or higher, SAE 15W-40 or 10W-40 (check manual for precise viscosity based on temperature).
Coolant:
Ethylene glycol based coolant, 50/50 mix with distilled water.
Brake Fluid:
DOT 3 or DOT 4.
Transmission Fluid Manual:
GL-4 Gear Oil (e.g., 75W-90).
Transmission Fluid Automatic:
Dexron II or equivalent.
Rust:
Common in wheel arches, rocker panels, and rear shock towers. Manual covers repair and prevention.
Cooling System Leaks:
Hoses, radiator, and water pump are common leak points. Manual details replacement.
Rubber Bushings:
Suspension and subframe bushings degrade over time, affecting handling. Manual guides replacement.
Fuel Injector Issues:
Clogging or failure of L-Jetronic injectors. Manual provides testing and replacement procedures.
Idle Control Valve:
Can cause rough idle or stalling. Manual addresses diagnosis and cleaning/replacement.
