Segment:
Compact Executive Sports Sedan/Coupe/Convertible/Wagon.
Positioning:
Known for its engaging driving dynamics, robust engineering, and high-quality build, a benchmark in its class.
Competitors:
Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Ford Sierra, Honda Accord.
Driving Dynamics:
Legendary handling due to near 50/50 weight distribution and independent rear suspension.
Build Quality:
Typical BMW build quality, offering durability and longevity.
Design:
Iconic and timeless design by Claus Luthe.
Reliability:
Generally considered reliable, with well-documented maintenance procedures.
Manual Type:
Service and Repair Workshop Manual
Format:
Digital (likely PDF, but not explicitly stated)
Completeness:
Complete, no missing pages
Guarantee:
Customer Satisfaction Guaranteed
Engine Mechanical:
Detailed overhaul and repair procedures for all E30 engine variants (M10, M20, M40, M42, S14).
Engine Management:
Fuel injection systems (Bosch L-Jetronic, Motronic), ignition systems, emissions control.
Transmission:
Manual and automatic transmission overhaul, clutch service, driveshaft and differential repairs.
Suspension And Steering:
Front and rear suspension systems, power steering, steering rack and linkage repair.
Brakes:
Disc and drum brake systems, ABS (where applicable), brake bleeding procedures.
Electrical System:
Wiring diagrams, charging system, starting system, lighting, instrumentation, power windows, central locking.
Body And Chassis:
Body panel removal and installation, rust repair, structural components, door and window mechanisms.
HVAC:
Heating, ventilation, and air conditioning system service and repair.
Interior Trim:
Removal and installation of seats, dashboard, door panels, and carpeting.
Routine Maintenance:
Oil changes, filter replacements, spark plug service, fluid level checks, belt adjustments.
Troubleshooting:
Diagnostic procedures for common drivability issues, electrical faults, and mechanical problems.
Component Overhaul:
Complete rebuild procedures for major components such as engines, transmissions, and differentials.
Diagnostic Techniques:
Step-by-step diagnostic guides for identifying and resolving faults using specific tools and methods.
Torque Specifications:
Precise torque values for all critical fasteners across various systems.
Alignment Specifications:
Wheel alignment angles for optimal handling and tire wear.
Depth Level:
Comprehensive (covers basic maintenance to full engine rebuilds and diagnostics).
Target Audience:
Professional technicians and experienced DIY enthusiasts.
Diagrams Illustrations:
Likely includes detailed diagrams, schematics, and illustrations for clarity.
Engine Family:
M10 (4-cylinder), M20 (6-cylinder), M40 (4-cylinder), M42 (4-cylinder DOHC), S14 (4-cylinder DOHC)
Common Engines:
M10 (e.g., 318i), M20 (e.g., 325i), M42 (e.g., 318is).
Displacement Range:
1.6L to 2.5L
Horsepower Range:
90 hp (316i) to 238 hp (M3 Evolution)
Torque Range:
130 Nm (316i) to 305 Nm (M3 Evolution)
Fuel Delivery:
Carbureted (early models, e.g., 318) and Bosch Fuel Injection (L-Jetronic, Motronic).
Fuel Type:
Unleaded gasoline (RON 91 or higher recommended for most models).
Manual Transmission:
Getrag 240 (4-speed and 5-speed) for 4-cyl engines, Getrag 260 (5-speed) for 6-cyl engines.
Automatic Transmission:
ZF 4HP22 (for 6-cylinder models).
Clutch Type:
Single dry plate diaphragm spring clutch.
Drive Type:
Rear-wheel drive (RWD).
Differential:
Limited-slip differential (LSD) was an option on many models.
Crash Testing:
Underwent rigorous testing for its era; safety standards have evolved significantly since.
ABS:
Anti-lock Braking System (ABS) available as an option on most models from the mid-80s onwards.
Traction Control:
Traction Control System (ASC) was an option on later models.
Seatbelts:
3-point seatbelts with front pre-tensioners (on later models).
Airbags:
Driver-side airbag became an option in the later years of production, but not standard across the range.
Rollover Protection:
Reinforced A-pillars and body structure.
Audio System:
Factory-fitted cassette or radio/cassette systems, often with upgraded speaker options.
Climate Control:
Manual climate control or optional automatic climate control on some higher-trim models.
Cruise Control:
Optional on many models.
OBD Port:
Not present in the modern OBD-II sense; diagnostic systems rely on specific BMW diagnostic tools of the era (e.g., check connector).
Oil Change Interval:
Typically every 7,500-10,000 miles (12,000-16,000 km) or annually, depending on usage and oil type.
Spark Plug Replacement:
Every 30,000-60,000 miles (50,000-100,000 km) depending on spark plug type (standard vs. long-life).
Timing Belt Replacement:
M10 and M20 engines use timing chains (virtually maintenance-free). M40 and M42 engines use timing belts, typically replaced every 60,000 miles (100,000 km).
Engine Oil:
API SG/SH or ACEA A2/A3, viscosity typically 10W-40 or 15W-50 (check specific engine and climate).
Coolant:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) or equivalent, mixed 50/50 with distilled water.
Transmission Fluid:
Manual: SAE 75W-90 or 75W-80 GL-4. Automatic: ZF Lifeguardfluid 5 or equivalent ATF.
Rust:
Common areas include wheel arches, rocker panels, strut towers, and battery trays.
Cooling System:
Plastic coolant expansion tanks can become brittle and crack; water pump seals can fail.
Electrical:
Wiring harness degradation, faulty fuel pump relays, instrument cluster failures.
Suspension:
Worn control arm bushings, ball joints, and rear shock mountings.
Engine M20:
Head gasket failures, timing belt tensioner failures (critical preventative maintenance).
Fuel System:
Clogged fuel injectors or carburetors, failing fuel pumps.
Bmw Legacy:
BMW's reputation for 'The Ultimate Driving Machine' was solidified with the E30 generation.
E30 Introduction:
Replaced the E21 3 Series. Featured a more modern design and improved handling.
Body Styles:
Available as 2-door sedan, 4-door sedan, convertible, and touring (wagon, only in Europe).
Performance Variants:
Iconic M3 variant (E30 M3) with a homologation special S14 engine.
Production Period:
1982-1994 (with the final convertibles produced until 1993/1994).
Manufacturing Locations:
Primarily Germany (Munich, Dingolfing), with some assembly in other locations.
Total Units Produced:
Over 2.3 million units.
