Era:
Iconic sports sedan of the 1980s and early 1990s, known for its driving dynamics and build quality.
Competitors:
Mercedes-Benz W201 (190E), Audi 80/90, Alfa Romeo 75, Ford Sierra.
Driving Dynamics:
Renowned for excellent handling, balanced chassis, and responsive steering, establishing BMW's reputation for 'The Ultimate Driving Machine'.
Design Philosophy:
Classic BMW design cues, driver-focused interior, robust engineering.
Target Audience:
Enthusiasts, DIY mechanics, restoration specialists, and owners looking to maintain their E30.
Model Years Covered:
1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991
Engine Variants Covered:
316, 316i, 318i, 320i, 325i
Estimated Page Count:
Approximately 1500-2500 pages (typical for comprehensive workshop manuals of this era, actual may vary based on specific publication)
Type:
Complete Workshop Service Repair Manual
Format:
Downloadable (assumed PDF or similar digital format)
Engine Mechanical:
Engine assembly, disassembly, overhaul, timing, lubrication, cooling system, fuel injection (Bosch Motronic, K-Jetronic, L-Jetronic where applicable), emission control systems.
Engine Electrical:
Ignition system, starter motor, alternator, battery, electronic control units (ECU), sensors, wiring diagrams.
Transmission Manual:
Gearbox overhaul, clutch service, shift linkage, drive shafts.
Transmission Automatic:
Automatic transmission overhaul, fluid service, control systems, torque converter.
Drivetrain:
Differential, rear axle, hub assemblies, CV joints.
Suspension:
Front and rear suspension components, shock absorbers, springs, control arms, bushings, steering knuckle, wheel bearings.
Steering:
Steering rack, power steering system, steering column, tie rods, alignment specifications.
Brakes:
Hydraulic system, brake discs, calipers, pads, master cylinder, ABS system (where applicable), parking brake.
Electrical System:
Lighting, wipers, horn, power windows, central locking, fuse box, relays, diagnostic connectors.
Bodywork:
Body panel removal and installation, doors, hood, trunk, bumpers, interior trim, glass replacement, rust repair guidance.
HVAC:
Heating, ventilation, and air conditioning system service and repair.
Routine Maintenance:
Oil changes, filter replacements, spark plug service, fluid checks, belt adjustments.
Troubleshooting:
Diagnostic procedures for common malfunctions, fault code interpretation (where applicable).
Major Repairs:
Engine rebuilds, transmission overhauls, suspension component replacement, brake system repairs.
Electrical Diagnostics:
Testing circuits, component replacement, wiring diagram interpretation for electrical faults.
Body And Interior Repair:
Panel alignment, dent repair, interior trim replacement, glass installation.
Depth:
Comprehensive (covers everything from basic fluid checks and filter changes to complete engine and transmission rebuilds, complex electrical diagnostics, and bodywork repairs).
Diagnostic Capability:
Advanced (includes diagnostic flowcharts, component testing procedures, and wiring diagrams necessary for in-depth troubleshooting).
316/316I:
M10/M40 1.6L Inline-4 (Carbureted on 316, Fuel Injection on 316i)
318I:
M10 1.8L Inline-4 (Fuel Injection)
320I:
M20 2.0L Inline-6 (Fuel Injection)
325I:
M20 2.5L Inline-6 (Fuel Injection)
316I (Approx):
75-95 HP, 110-125 Nm torque
318I (Approx):
100-105 HP, 140-145 Nm torque
320I (Approx):
125 HP, 170 Nm torque
325I (Approx):
170-177 HP, 220-240 Nm torque
Injection Systems:
Bosch L-Jetronic, Bosch K-Jetronic (CIS), Bosch Motronic (EFI)
Fuel Type:
Unleaded gasoline (Octane rating specifications will be in the manual)
Block Material:
Cast Iron (M10 and M20 engines)
Head Material:
Aluminum Alloy
Transmission Types:
4-speed manual, 5-speed manual ( Getrag 260 common on later models and larger engines)
Automatic Transmission:
ZF 3HP22 3-speed automatic, ZF 4HP22 4-speed automatic (depending on engine and market)
Clutch Type:
Hydraulically operated single dry plate clutch
Manual Transmission Fluid:
GL-4 gear oil (e.g., Castrol EPX 80W/90 or equivalent, exact spec in manual)
Automatic Transmission Fluid:
Dexron III or equivalent (exact spec in manual)
Oil Change:
Typically every 5,000-7,500 miles (8,000-12,000 km) or annually, depending on driving conditions (specific interval in manual).
Spark Plugs:
Every 20,000-30,000 miles (32,000-48,000 km), depending on type (manual will specify correct type and gap).
Timing Belt:
M40 engines (316i, some 318i) have a timing belt, typically replaced every 40,000-50,000 miles (64,000-80,000 km) or 3-4 years. M10 and M20 engines have timing chains.
Engine Oil Type:
API SG/SH or ACEA A2/A3 rated oil, viscosity typically 15W-40, 10W-40, or 20W-50 (exact specification and capacity in manual).
Coolant:
Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio). BMW coolant or equivalent.
Brake Fluid:
DOT 3 or DOT 4 brake fluid (check manual for exact specification).
Engine:
Head gasket failure (especially on early M10s), oil leaks from rear main seal and valve cover, fuel pump issues, injector failure, vacuum leaks causing rough idle.
Suspension Steering:
Worn control arm bushings, worn tie rod ends, play in steering box, strut mount failure.
Electrical:
Corroded grounds, failing fuel pump relay, intermittent dashboard lights, heater blower motor failure.
Body:
Rust (particularly around wheel arches, rocker panels, jacking points, and sunroofs), deteriorating rubber seals.
Bmw Legacy:
BMW has a long history of producing driver-focused, sporty sedans and coupes.
E30 Development:
The E30 replaced the E21 3 Series. It was designed to be more refined, spacious, and technologically advanced, while retaining its predecessor's sporting character. Introduced in 1982 in Europe, later in North America.
Production Years:
1982–1994 (globally, covering E30 and later E36 derivatives in some markets).
Manufacturing Locations:
Primary production in Dingolfing, Germany, with assembly in other countries.
