Segment:
Compact Executive Sedan/Coupe
Reputation:
Renowned for driving dynamics, build quality, and sporting heritage
Key Competitors:
Mercedes-Benz W201 (190E), Audi 80/90, Alfa Romeo 75, Volvo 240
Handling:
Excellent chassis balance, independent rear suspension, driver-focused feel
Design:
Iconic 'Neue Klasse' design language, clean lines, compact proportions
Powertrain:
Reliable M20 inline-six engines known for smooth power delivery
Engine Mechanical:
Detailed overhaul, tuning, component testing, lubrication system, cooling system, fuel delivery system, exhaust system
Engine Management:
L-Jetronic fuel injection system, ignition system, sensor diagnostics, ECU functionality
Transmission Manual:
Clutch operation, gearbox overhaul, shift linkage adjustment, gear ratios
Transmission Automatic:
Operation, fluid service, basic troubleshooting (if applicable to 320i E30 models)
Drivetrain:
Driveshafts, CV joints, differential maintenance and repair
Suspension:
Front and rear suspension components, geometry adjustments, shock absorber and spring replacement, bushings
Steering:
Steering rack, power steering system, linkage components, alignment procedures
Brakes:
Front and rear brake systems (discs/drums), hydraulic system, ABS (if equipped), parking brake, bleeding procedures
Electrical System:
Battery, charging system (alternator), starting system (starter motor), lighting systems, fuse box diagrams, wiring schematics
Body And Chassis:
Body panel removal and installation, interior trim, rust repair techniques, jacking points
HVAC:
Heating, ventilation, and air conditioning system service and repair
Maintenance:
Routine service (oil changes, filter replacements, tune-ups), fluid checks and changes, belt and hose inspection
Troubleshooting:
System-specific diagnostic charts, common fault identification, root cause analysis
Repair:
Component replacement, adjustment procedures, overhaul instructions
Diagnostics:
On-board diagnostics (OBD) interpretation (early systems), multimeter usage, component testing methods
Specifications:
Torque values, clearances, fluid types and capacities, electrical specifications
Special Tools:
Identification and usage of BMW-specific tools required for certain repairs
Level:
Professional Factory Level - Suitable for DIY and professional mechanics
Rebuild Procedures:
Complete engine and transmission rebuild procedures
Electrical Schematics:
Detailed, high-resolution wiring diagrams for all vehicle systems
Type:
Portable Document Format (PDF)
Searchability:
Fully text-searchable for quick information retrieval
Resolution:
High-resolution, suitable for printing individual pages or the entire manual
Digital Format Advantage:
No physical binding; easily accessible on multiple devices
Digital Format Advantage:
Environmentally friendly, no physical paper required
Content:
Complete official factory documentation
Engine Type:
Inline 6-cylinder, SOHC
Displacement:
1990 cc (2.0 Liters)
Bore X Stroke:
80.0 mm x 66.0 mm
Compression Ratio:
8.8:1 or 9.1:1 (depending on market/exact version)
Horsepower:
Approx. 129 PS (127 hp) at 6000 rpm (DIN)
Torque:
Approx. 174 Nm (128 lb-ft) at 4300 rpm (DIN)
Injection System:
Bosch L-Jetronic (or Motronic MA 1.3/2.1 depending on year/market)
Fuel Type:
Unleaded Petrol (Octane rating varies by market, typically 95 RON recommended)
Type:
Electronic Ignition (Distributor-based)
Type:
4-Speed Manual (Getrag 245)
Type:
3-Speed Automatic (ZF 3HP22)
Manual Gear Ratios:
Refer to manual for specific ratios (e.g., 1st: ~3.72, 2nd: ~2.05, 3rd: ~1.32, 4th: 1.00)
Manual:
BMW MTF LT-2 or equivalent (e.g., Pentosin ATF T-4)
Automatic:
Dexron II or equivalent
Length:
Approx. 4325 mm (170.3 in)
Width:
Approx. 1675 mm (65.9 in)
Height:
Approx. 1380 mm (54.3 in)
Wheelbase:
Approx. 2570 mm (101.2 in)
Curb Weight:
Approx. 1200-1280 kg (2645-2822 lbs)
Gross Vehicle Weight Rating:
Refer to vehicle specific plate
Oil Change:
Typically every 10,000-15,000 km (6,000-9,000 miles) or annually
Air Filter:
Inspect every 10,000 km, replace as needed (approx. 30,000 km)
Spark Plugs:
Replace typically every 30,000-50,000 km depending on type
Coolant Flush:
Every 2-3 years or 40,000-60,000 km
Engine Oil:
SAE 10W-40 or 15W-40 API SG/SH rated (Check manual for specific viscosity and API rating)
Engine Oil Capacity:
Approx. 4.5 Liters (with filter change)
Coolant:
BMW Blue Antifreeze or equivalent (50/50 mix with distilled water)
Brake Fluid:
DOT 3 or DOT 4
Common Problems:
Cracked dashboards (UV damage), fuel pump failure, injector seal leaks, coolant hose degradation, rear subframe mount fatigue, tendency for rust (wheel arches, rocker panels)
Engine M20:
Head gasket issues can occur if overheated; timing belt maintenance is critical (interval varies, typically 40,000-60,000 km)
Bmw Philosophy:
Sporting sedans, driver enjoyment ('The Ultimate Driving Machine')
E30 Introduction:
Introduced in 1982 as the successor to the E21 3-Series
E30 Lineup:
Included 2-door sedan, 4-door sedan, convertible, and estate (Touring) variants
E30 Facelifts:
Significant facelift in 1987 introduced revised bumpers, trim, and engine management updates
Production Years:
1982-1994 (overall E30 platform)
Manufacturing Location:
Germany (various plants)
