E30 Significance:
The E30 generation (1982-1991) is a highly regarded platform for BMW, known for its sporty handling, robust engineering, and classic design. It cemented BMW's reputation in the compact executive sedan and coupe market.
Key Competitors Era:
Mercedes-Benz W201 (190E), Audi 80/90, Alfa Romeo 75, Volvo 240.
Vehicle Appeal:
The E30 3 Series is celebrated for its driver-focused experience, balanced chassis, and availability of potent engines, making it a favorite for both daily driving and motorsports.
Manual Value Proposition:
This manual provides essential, factory-level technical data crucial for maintaining and repairing these classic vehicles, ensuring longevity and optimal performance.
Primary Coverage:
Service, Repair, Workshop
Scope:
Comprehensive mechanical and electrical systems, bodywork, and troubleshooting.
Estimated Page Count:
1000+
Type:
Factory Service Manual / Workshop Manual
Engine:
Detailed overhaul, diagnostics, fuel injection (K-Jetronic, L-Jetronic), ignition systems, cooling, lubrication.
Transmission:
Manual and automatic transmission repair, clutch replacement, driveline components, differential.
Brakes:
Hydraulic system, disc and drum brake service, ABS (if equipped on later E30s but primarily focused on pre-ABS for 1982).
Suspension Steering:
Front and rear suspension components (struts, control arms, bushings), steering rack, power steering.
Electrical:
Wiring diagrams, starter, alternator, battery, lighting, fuses, relays, instrument cluster, ECU troubleshooting.
Body Chassis:
Body panel removal/installation, door mechanisms, interior trim, chassis components, jacking points.
Maintenance:
Oil changes, filter replacements, spark plug service, coolant flushes, brake fluid changes.
Repair:
Engine rebuild, transmission rebuild, brake caliper overhaul, suspension component replacement, electrical component repair.
Troubleshooting:
Diagnostic procedures for common drivability issues, electrical faults, and mechanical problems.
Diagnostics:
Step-by-step diagnostic flowcharts, fault code interpretation (where applicable for the era).
Depth:
In-depth, professional-level technical information suitable for mechanics and advanced DIY enthusiasts.
Detail Level:
Includes torque specifications, special tool requirements, assembly clearances, and detailed diagrams.
PDF Quality:
High-resolution, clear scans or digital rendition suitable for printing.
Searchability:
Likely text-searchable PDF for efficient information retrieval.
Printability:
Designed for clear printing of text, diagrams, and illustrations.
Physical Binding:
N/A (Digital PDF)
Physical Paper:
N/A (Digital PDF)
Engine Family 1982:
M10 (4-cylinder, SOHC) and M20 (6-cylinder, SOHC).
1982 Engine Variants:
318i (M10B18), 320i (M10B20, or M20B20 in some markets), 323i (M20B23).
318I Engine Output:
Approx. 105 hp (77 kW) @ 5800 rpm; 155 Nm (114 lb-ft) @ 3200 rpm.
320I Engine Output:
Approx. 125 hp (92 kW) @ 5800 rpm (M20B20); 170 Nm (125 lb-ft) @ 4500 rpm.
323I Engine Output:
Approx. 143 hp (105 kW) @ 6000 rpm; 190 Nm (140 lb-ft) @ 4500 rpm.
Fuel Injection Type:
Bosch K-Jetronic (CIS) for most M10 and early M20, some M20 variants may feature L-Jetronic or early Motronic.
Fuel Requirement:
Premium Unleaded Gasoline (91 AKI / 95 RON recommended).
Standard Transmission:
4-speed or 5-speed manual gearbox (e.g., Getrag 245, Getrag 265).
Optional Transmission:
ZF 3HP22 3-speed automatic transmission.
Clutch Type:
Single dry plate, hydraulically actuated.
Manual Transmission Fluid:
GL-4 gear oil (e.g., 75W-90 or 80W-90).
Automatic Transmission Fluid:
Dexron III (or equivalent specification for the ZF 3HP22).
Body Styles:
2-door sedan, 4-door sedan, convertible, touring (wagon) – though touring models were introduced later in the E30 lifecycle, the 1982 manual would primarily cover sedan and coupe.
Wheelbase Approx:
2565 mm (101 inches)
Curb Weight Approx:
1150 - 1350 kg (2535 - 2976 lbs), depending on model and equipment.
Gross Vehicle Weight Rating:
Varies by model, consult specific vehicle data.
Towing Capacity:
Not typically recommended for significant towing.
Crash Test Era:
Early E30 models predate modern standardized crash testing protocols like NCAP. Focus was on passive safety features available at the time.
Braking System:
Front ventilated discs, rear drums (standard). ABS optional on later models, not typical for 1982.
Traction Control:
Not available on 1982 models.
Seatbelts:
3-point front seatbelts with pre-tensioners (on some models/markets), 2-point rear lap belts.
Airbags:
Not available on 1982 models.
Body Construction:
Unitized body construction with front and rear crumple zones.
Audio System:
Factory-installed Bavaria C, C-II, or RDS stereo systems with cassette player. Basic radio and speaker configurations.
On Board Computer:
Optional On-Board Computer (OBC) offering basic trip data, diagnostics, and clock functions.
Cruise Control:
Optional on some models.
Instrument Cluster:
Classic analog gauges including speedometer, tachometer, fuel level, and temperature. Check control panel for warning lights.
Connectivity Features:
N/A. Vehicles of this era predated modern Bluetooth, USB, or smartphone integration.
Oil Change Interval:
Typically every 7,500-10,000 miles (12,000-15,000 km) or annually, using synthetic or high-quality conventional oil.
Spark Plug Replacement:
Approximately every 20,000-30,000 miles (30,000-50,000 km) depending on spark plug type.
Timing Belt Chain:
M10 engines use a timing chain (generally long-life). M20 engines use a timing belt, typically replaced every 40,000-60,000 miles (60,000-100,000 km) or 4-5 years.
Engine Oil Type:
API SG/SH or ACEA A2/A3 rated oil, viscosity typically 10W-40 or 15W-50 depending on climate. Manual will specify exact grades.
Coolant Type:
Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water. BMW blue coolant or equivalent.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid.
Common E30 Problems:
Cooling system leaks (hose, radiator, water pump), fuel distributor issues (K-Jetronic), alternator bearing failure, worn suspension bushings, seized brake calipers, rust (especially in wheel wells and rocker panels), door panel separation.
Electrical Gremlins:
Degraded wiring insulation over time, faulty OBC (On-Board Computer) units if equipped, intermittent dashboard warning lights.
Bmw Philosophy:
BMW's 'Ultimate Driving Machine' philosophy emphasizes sportiness, performance, and driver engagement, which the E30 embodies exceptionally well.
E30 Introduction:
The E30 was introduced in 1982 as the successor to the E21 3 Series, bringing significant improvements in chassis dynamics, interior space, and styling.
Key E30 Variants Covered By Manual:
This 1982 manual would specifically detail the early E30 lineup, including the 318i, 320i, and 323i, with their respective M10 and M20 engines.
Production Years:
1982-1991 (for the E30 generation).
Manufacturing Locations:
Primary production in Munich, Germany, with some assembly in other countries.
E30 Reputation:
The E30 is widely recognized by automotive publications and enthusiasts as one of the best driving cars of its era and a benchmark for sports sedans.
Motorsport Success:
The E30 platform achieved significant success in various motorsport disciplines, including touring car championships and rally racing, highlighting its engineering prowess.
Collector Status:
Highly sought after by collectors and enthusiasts for its driving dynamics and classic BMW styling. Certain models like the M3 (though not covered in this 1982 manual) are iconic.
