Product Name:
BMW 3 Series E30 Technical Workshop Manual
Engine Codes Covered:
M10 (e.g., M10B18, M10B20), M20 (e.g., M20B23, M20B25), M40 (e.g., M40B18), M30 (e.g., M30B32 - though less common in E30, covered for completeness in some manuals)
Chassis Codes Covered:
E30 (all variants including coupe, sedan, convertible, touring)
Positioning:
The E30 3 Series is a legendary modern classic, known for its driving dynamics and build quality. This manual is essential for owners looking to maintain or restore these vehicles.
Manual Utility:
Competes with other official BMW workshop manuals and reputable aftermarket manuals, offering detailed, model-specific information for DIY enthusiasts and professional mechanics alike.
Ease Of Use:
Detailed instructions, exploded views, and diagrams simplify complex procedures, making it accessible for varying skill levels.
Comprehensiveness:
Covers all aspects of the vehicle, from routine maintenance to major overhauls, providing a complete resource.
Format Advantage:
Instant PDF download provides immediate access for urgent repairs or pre-purchase inspections.
Engine:
Engine mechanical, lubrication, cooling, fuel, ignition, exhaust, emissions control, engine management (DME/DDK).
Transmission:
Manual and Automatic transmission overhaul, repair, adjustment, and fluid specifications.
Drivetrain:
Clutch, driveshafts, differential, rear axle assembly.
Suspension:
Front and rear suspension components, steering system, shock absorbers, springs, bushings.
Brakes:
Brake system hydraulics, calipers, master cylinder, ABS (where applicable), brake pad/disc replacement, bleeding procedures.
Electrical:
Complete wiring diagrams, component location, starter, alternator, battery, lighting, instruments, relays, fuses, power windows, central locking.
Bodywork:
Body panel removal/installation, door mechanisms, interior trim, glass replacement, body maintenance, rust prevention.
Climate Control:
HVAC system diagnosis and repair, A/C system service (where applicable).
Maintenance:
Routine maintenance, oil changes, filter replacements, spark plug replacement, belt adjustments, fluid level checks.
Troubleshooting:
Diagnostic procedures, fault finding charts, symptom-based troubleshooting for common issues.
Repair:
Detailed step-by-step repair instructions for all major vehicle systems, component overhauls, and replacements.
Disassembly Assembly:
Exploded views and diagrams for correct disassembly and reassembly of all components.
Adjustments:
Precise adjustment procedures for engine timing, idle speed, valve clearances (where applicable), clutch, brakes, headlights.
Depth:
Comprehensive, covering basic DIY maintenance to advanced engine rebuilding and electrical diagnostics.
Engine Family 1:
M10 (4-cylinder, SOHC, 8-valve)
Engine Family 2:
M20 (6-cylinder, SOHC, 12-valve)
Engine Family 3:
M40 (4-cylinder, SOHC, 8-valve, later models)
Engine Family 4:
S14 (4-cylinder, DOHC, 16-valve, M3 models)
Typical Hp Range:
75 hp (316i) to 238 hp (M3 Evolution).
Typical Torque Range:
140 Nm (316i) to 320 Nm (M3 Evolution).
Fuel Delivery Types:
Carbureted (early models) and Bosch L-Jetronic/Motronic fuel injection (later models and higher trims).
Standard Transmission:
4-speed or 5-speed manual transmission (Getrag 240, Getrag 260).
Optional Transmission:
3-speed or 4-speed automatic transmission (ZF 3HP22, ZF 4HP22).
Clutch Type:
Single dry plate clutch.
Transmission Fluid Spec Manual:
Manual transmission fluid (e.g., ATF or specific GL-4 gear oil depending on gearbox).
Transmission Fluid Spec Automatic:
Dexron III/Mercon ATF or equivalent for automatic transmissions.
Length:
Approximately 4325-4340 mm (sedan/coupe), 4220 mm (convertible).
Width:
Approximately 1675-1680 mm.
Height:
Approximately 1365-1380 mm (sedan/coupe), 1370 mm (convertible).
Wheelbase:
Approximately 2570 mm.
Curb Weight:
Approximately 1150-1350 kg depending on engine and body style.
Crash Testing Era:
Tested under 1980s safety standards; no modern standardized ratings (e.g., NCAP) apply directly.
Brakes:
Front disc brakes, rear drum brakes (standard on most models), optional front and rear discs with ABS on later/performance models.
Steering:
Recirculating ball steering, power steering optional/standard on higher trims.
Seatbelts:
Three-point inertia reel seatbelts (front), lap belts (rear).
Body Construction:
Unitized body construction with crumple zones.
Oil Change Interval:
Typically 10,000-15,000 km or annually, depending on driving conditions and oil used.
Major Service Intervals:
Timing belt replacement (M40) every 60,000 km or 4 years; chain maintenance for M10/M20/S14.
Engine Oil Type:
API SG/SH, SAE 15W-40, 10W-40, or 5W-30 depending on climate and specific engine. Consult manual for precise grades.
Coolant Type:
Ethylene glycol-based antifreeze with corrosion inhibitors (BMW P/N 82 14 9 404 076 or equivalent).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Common Engine Issues:
Oil leaks (valve cover, oil pan), fuel distributor issues (M10), coolant leaks (thermostat housing, water pump), idle control valve problems.
Common Electrical Issues:
Corroded wiring, faulty grounds, headlight switch failure, intermittent instrument cluster issues.
Common Suspension Issues:
Worn control arm bushings, worn ball joints, trailing arm bushings (common failure point on rear), strut mounts.
Common Body Issues:
Rust in common areas: jacking points, rear fender arches, front strut towers, battery tray, sunroof drains.
Bmw Philosophy:
BMW's 'Ultimate Driving Machine' ethos heavily influenced the E30's design, prioritizing driver engagement and performance.
Introduction:
Launched in 1982 as a successor to the E21, the E30 defined the compact executive sedan segment for BMW.
Body Styles:
Initially introduced as a 2-door sedan, it was later joined by a 4-door sedan, convertible, and the rare Touring (wagon) variant.
M3 Development:
The E30 M3, launched in 1986, was a homologation special for motorsport and is considered one of the greatest driver's cars of its era.
Production Years:
1982-1991 (with some convertible production extending slightly longer).
Key Production Locations:
Germany (Munich, Dingolfing), South Africa, USA.
