Target Audience:
Enthusiasts, DIY mechanics, professional technicians working on E30 BMWs.
Value Proposition:
Offers factory-level diagnostic and repair information, crucial for maintaining and restoring the iconic E30 chassis.
Manual Features:
Comprehensive coverage, factory accuracy, detailed diagrams, troubleshooting flowcharts, instant download.
Significance:
The E30 is a landmark model for BMW, renowned for its driving dynamics and build quality, making a reliable service manual essential.
Engine Systems:
Engine mechanical, fuel injection (Motronic), ignition, lubrication, cooling, exhaust, engine diagnostics, performance tuning
Transmission Systems:
Manual transmission overhaul, automatic transmission overhaul, clutch system, driveline, driveshafts, differentials
Chassis Systems:
Suspension (front & rear), steering system, brakes (ABS & non-ABS), wheels, tires
Electrical Systems:
Wiring diagrams, starter, alternator, battery, lighting, instrumentation, comfort electronics, ECU diagnostics
Body And Interior:
Body panels, doors, windows, sunroof, seats, interior trim, HVAC system
Maintenance Procedures:
Scheduled maintenance, oil changes, fluid checks/changes, filter replacements, spark plug service, timing belt replacement (where applicable)
Repair Procedures:
Engine rebuilds, transmission repairs, brake caliper overhaul, suspension component replacement, electrical component diagnosis and replacement
Diagnostic Procedures:
Troubleshooting guides, fault code interpretation, testing procedures for sensors and actuators
Depth:
Comprehensive; covers basic maintenance to complete engine and transmission overhauls, including detailed diagnostics and repair procedures.
Detail Level:
Factory-level detail with torque specifications, special tool requirements, and step-by-step instructions.
Engine Families Covered:
M10 (4-cylinder), M20 (6-cylinder), M40 (4-cylinder), M42 (4-cylinder DOHC)
Typical Horsepower Range:
85 hp (316) to 232 hp (M3 Evolution)
Typical Torque Range:
100 lb-ft (316) to 243 lb-ft (M3 Evolution)
Injection Systems:
Bosch L-Jetronic, Bosch LE-Jetronic, Bosch Motronic (various versions)
Fuel Recommendation:
Unleaded gasoline (octane rating varies by engine)
ECU Types:
Coverage for various Bosch Engine Control Units (ECUs) relevant to E30 models.
Timing Belt Replacement Interval:
Varies by engine; typically 40,000-60,000 miles or 4-5 years. Check manual for specific engine.
Standard Transmission:
4-speed manual, 5-speed Getrag manual (e.g., 260/5)
Optional Transmission:
3-speed automatic (e.g., ZF 4HP22), 4-speed automatic
Clutch Type:
Hydraulically actuated single-plate dry clutch
Manual Transmission Fluid:
BMW ATF Dexron III or equivalent (check specific year/model for detailed spec, e.g., BMW MTF LT-2 for later models)
Automatic Transmission Fluid:
Dexron III or equivalent
Body Styles:
2-door sedan, 4-door sedan, convertible, touring (wagon), convertible (Baur)
Wheelbase:
Approx. 101.2 inches (2570 mm)
Overall Length:
Approx. 170-175 inches (4300-4450 mm) depending on body style and bumper type.
Curb Weight Range:
Approx. 2400-3000 lbs (1100-1360 kg) depending on engine and body style.
Crash Test Information:
Information available for European crash tests of the era; US NHTSA data may be limited. Manual will detail safety system components.
ABS Availability:
Optional on many models, standard on some higher-performance variants (e.g., some M3s).
Airbag Availability:
Not standard; driver-side airbag became available on later models, often as an option.
Seat Belt System:
Three-point inertia reel seat belts front, lap belts rear (variations exist).
Audio Systems:
Factory cassette players, optional CD changers (later models), basic speaker configurations.
ABS System Details:
Bosch ABS II or III systems with electronic wheel speed sensor monitoring.
OBD I Port:
Pre-OBD-II diagnostic port, typically a 15-pin connector for BMW proprietary diagnostic protocols (e.g., check engine codes).
HVAC System:
Manual climate control with optional air conditioning.
Oil Change Interval:
Typically every 5,000-7,500 miles or annually, depending on driving conditions. Consult manual for specific engine.
Brake Fluid Change Interval:
Every 2 years, regardless of mileage, due to hygroscopic nature of fluid.
Coolant Change Interval:
Every 2-3 years or per BMW specifications.
Engine Oil Specification:
BMW High Performance SAE 15W-40 or 20W-50 (e.g., Castrol GTX) for older models, progressing to synthetic 5W-30 or 10W-40. Manual specifies precise grades.
Coolant Specification:
BMW Blue/Green Antifreeze or equivalent (ethylene glycol based with corrosion inhibitors).
Power Steering Fluid:
Dexron III ATF or specific Pentosin CHF 7.1 depending on steering rack type.
Common Problems:
Subframe cracks (rear), cooling system failures (water pump, radiator, hoses), fuel distributor leaks (K-Jetronic), rust (wheel arches, rocker panels), idle control valve issues, worn bushings (suspension, shifter).
Maintenance Focus:
Emphasis on preventative maintenance for cooling system, fuel system, and rust prevention.
Bmw Philosophy:
BMW's focus on 'The Ultimate Driving Machine' is exemplified by the E30's balanced chassis and engaging driving experience.
E30 Introduction Year:
1982
E30 Facelift Years:
Various updates occurred throughout its production life, including cosmetic and technical revisions.
Iconic Variants:
M3 (E30), 325i, 325is, 318is, Alpina variants.
Production Years:
1982-1991
Production Locations:
Germany (Munich, Dingolfing), Austria, South Africa, Mexico, USA (SC)
Performance Awards:
The E30 M3 was a highly successful touring car, winning numerous championships in its era, cementing its performance pedigree.
Automotive Journalism Recognition:
Consistently praised for handling, steering feel, and driver engagement by automotive media throughout its production and in retrospectives.
