Model Years Covered:
1984-1990
Specific Model Years Mentioned:
1984, 1985, 1986, 1987, 1989, 1990
Covered Models:
318i, 325, 325e, 325es, 325i, 325is, 325 Convertible
Target Audience:
BMW E30 owners, DIY mechanics, independent repair shops
Value Proposition:
Empowers owners to maintain, service, diagnose, and repair their vehicles, saving on dealership costs. Provides 'dealer-level' information.
Advantage:
Instant digital access, comprehensive coverage, official factory data equivalent.
Content Quality:
Step-by-step instructions, detailed diagrams, factory-accurate procedures.
Primary Focus:
Maintenance, Service, Diagnosis, and Repair
Technical Content:
All repair procedures
Estimated Page Count:
Comprehensive (actual number not specified, but implied extensive)
Type:
Factory Service/Repair/Workshop Manual
Delivery Method:
Instant Download
Compatibility:
All Versions of Windows & Mac
Requirements:
Adobe PDF Reader, WinZip
Printability:
All pages are printable
Engine Mechanical:
Engine, Engine Electrical Equipment, Fuel System, Fuel Tanks and Lines, Radiator, Exhaust System
Drivetrain:
Clutch, Manual Transmission, Gear Shift Mechanism, Propeller Shaft, Transfer Box, Front Axle, Rear Axle
Chassis Suspension Steering Brakes:
Steering and Wheel Alignment, Brakes, Pedals, Wheels and Tires, Integrated Suspension Systems
Body Interior:
Body, Body Equipment, Seats, Hood, Sun Roof
Electrical Electronics:
Electrical System, Instruments, Lights, Radio and Special Equipment
Climate Control:
Heating and Air Conditioning
Accessories:
Equipment and Accessories for Engine and Chassis, Equipment and Accessories for Body
Maintenance:
Scheduled maintenance, general data, fluid changes, filter replacements
Repair Rebuild:
Complete engine overhaul, transmission rebuild, brake system repair, suspension component replacement, body panel repair, electrical component diagnosis and repair
Diagnostics:
Troubleshooting procedures for all systems, diagnostic codes (if applicable to the era)
Adjustments:
Valve adjustments, brake adjustments, steering alignment
Depth:
Comprehensive, covering all aspects from basic maintenance to advanced repair, mirroring dealer/mechanic level information
Visuals:
Highly detailed exploded pictures and diagrams
Model 318I Engine:
M10B18 1.8L Inline-4 (SOHC)
Model 325 325E 325Es Engine:
M20B27 2.7L Inline-6 (SOHC) - 'Eta' variant (economy-focused)
Model 325I 325Is 325 Convertible Engine:
M20B25 2.5L Inline-6 (SOHC)
318I Power Approx:
100-105 hp
325E Power Approx:
121-124 hp
325I Power Approx:
168-171 hp
Injection Type:
Bosch L-Jetronic or Motronic electronic fuel injection (model dependent)
Fuel Type:
Unleaded gasoline
Type E30:
Getrag 260 5-speed manual transmission (standard on most performance models)
Type E30:
ZF 4HP22 4-speed automatic transmission (optional)
Manual Transmission Differences:
Specific gear ratios and clutch specifications covered for each model variant.
Manual Transmission Fluid:
Typically Dexron III or equivalent ATF, or GL-4 gear oil (specifics in manual).
Automatic Transmission Fluid:
Dexron III or equivalent ATF (specifics in manual).
Body Styles Covered:
2-door sedan, 4-door sedan, convertible
Wheelbase:
Approx. 101.2 inches (2570 mm) for sedans, 101.3 inches (2573 mm) for convertibles
Curb Weight Range:
Approx. 2700 - 3100 lbs (1225 - 1400 kg) depending on model and equipment
Crash Test Data:
While official NHTSA ratings from this era are scarce, the E30 chassis was known for its robust build quality and independent suspension's handling characteristics contributing to accident avoidance.
Braking System:
Front ventilated discs, rear solid discs (standard on most models). ABS optional/standard on later 325i/is models.
Construction:
Unitized body construction with crumple zones.
Restraints:
Seat belts. Airbags were not standard on E30 models of this period.
Radio System:
Factory-installed radio/cassette players were common, with options for upgraded sound systems. Manual covers removal, installation, and troubleshooting.
ABS:
Anti-lock Braking System (ABS) was an optional feature on some models and a standard feature on later models, particularly the 325is. The manual details its operation and repair.
Features:
No modern connectivity features like Bluetooth or USB were standard. Manual covers basic electrical system for accessories and factory options.
Oil Change Interval:
Typically 5,000-7,500 miles or annually, depending on driving conditions (refer to specific manual for precise intervals).
Spark Plug Replacement:
Around 30,000 miles for standard plugs, longer for platinum/iridium (refer to manual).
Timing Belt Chain:
M10 engine uses a timing chain (virtually maintenance-free). M20 engines use a timing belt with replacement intervals typically around 40,000-60,000 miles or 4-5 years. Critical to follow manual for M20.
Engine Oil Type:
SAE 15W-40 or 10W-40 synthetic or semi-synthetic recommended for most E30s, especially M20 engines. 5W-30 or 5W-40 may be used in colder climates. Consult manual for precise API service class and viscosity.
Coolant Type:
Ethylene glycol based antifreeze with corrosion inhibitors. BMW recommends BMW Coolant. Typically a 50/50 mix with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4 (refer to manual for exact specification and flush interval).
Engine Cooling System:
Plastic coolant expansion tanks are prone to cracking. Water pumps and thermostats can also fail.
Fuel System:
Clogged injectors, failing fuel pumps, and deteriorating fuel lines can occur with age.
Suspension:
Worn control arm bushings, ball joints, and shock absorbers are common due to mileage and age.
Electrical System:
Corroded grounds, aging wiring harnesses, and failing sensors (e.g., AFM, O2 sensors) can cause drivability issues.
Body Rust:
Rust can be an issue in common areas like wheel arches, rocker panels, and around windows. The manual will cover body repair procedures.
Bmw Philosophy:
BMW's commitment to 'The Ultimate Driving Machine' is evident in the E30's performance-oriented design and handling.
E30 Generation:
The E30 was the second generation of the 3 Series, succeeding the E21 and preceding the E36. It was a significant evolution in terms of chassis dynamics, engine technology, and comfort.
Manufacturing Location:
Primarily Germany
Production Run:
1982-1994 (globally), with the specified manual covering the later part of this period.
Automotive Press:
The E30 platform was widely praised by automotive journalists for its driving dynamics, balance, and build quality, cementing BMW's reputation in the compact executive segment.
Longevity:
Many E30s are still on the road today, testament to their robust engineering and the availability of comprehensive service information like this manual.
