Vehicle Segment:
Compact Executive Sports Sedan/Coupe
Target Audience:
Enthusiasts seeking performance, handling, and BMW's renowned driving dynamics.
Key Competitors:
Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75.
Driving Dynamics:
Renowned for its balanced chassis, precise steering, and engaging driving experience.
Engine Performance:
Smooth and responsive M20 inline-six engine providing ample power for its class.
Build Quality:
Characteristic BMW build quality and durable construction.
Essential Resource:
Indispensable for maintaining, diagnosing, and repairing the BMW 325i E30, ensuring longevity and optimal performance.
Engine Mechanical:
Detailed overhaul procedures, component specifications, timing belt replacement, valve adjustments, cooling system diagnostics and repair, lubrication system.
Engine Electrical:
Ignition system, fuel injection system (Bosch Motronic), starter, alternator, engine sensors, wiring diagrams.
Transmission:
Manual and Automatic transmission overhaul, clutch service, driveshaft and differential maintenance, gear linkage adjustment.
Suspension And Steering:
Front and rear suspension component replacement, shock absorber and strut replacement, power steering system service, wheel alignment specifications.
Brakes:
Front and rear brake system overhaul (discs and calipers), brake fluid replacement, parking brake adjustment, ABS system diagnostics (if equipped).
Electrical System:
Comprehensive wiring diagrams, lighting system, instrument cluster, power windows, central locking, fuse box diagrams, battery and charging system.
Body And Chassis:
Body panel repair, door mechanisms, trunk lid, hood, bumper repair, chassis lubrication, rust prevention and repair.
Routine Maintenance:
Oil change intervals and specifications, filter replacement, spark plug replacement, coolant flush, air filter replacement.
Troubleshooting:
Diagnostic charts for common issues, fault code interpretation (where applicable), symptom-based troubleshooting guides.
Component Replacement:
Step-by-step instructions for replacing major components (e.g., water pump, alternator, starter, fuel pump).
Special Tools Requirements:
Identification and usage of specialized tools required for specific procedures.
Depth:
Detailed diagnostic procedures, torque specifications, component clearances, electrical schematics, and overhaul instructions suitable for professional mechanics and advanced DIY enthusiasts.
Engine Type:
Inline-6, SOHC
Displacement:
2494 cc (2.5 Liters)
Bore X Stroke:
84.0 mm x 75.0 mm
Horsepower:
168 hp @ 5800 rpm (approx.)
Torque:
225 Nm (166 lb-ft) @ 4300 rpm (approx.)
Fuel Delivery:
Bosch Motronic Injection (LE-Jetronic/L-Jetronic variants)
Recommended Fuel:
Unleaded Premium (91+ Octane)
Oil Capacity:
5.0 Liters (5.3 US Quarts) with filter
Coolant Capacity:
8.0 Liters (8.5 US Quarts)
Ignition System:
Electronic Ignition with Knock Sensor
Transmission Type:
Getrag 260 5-Speed Manual
Transmission Type:
ZF 4HP22 4-Speed Automatic
Differential Type:
Limited Slip Differential (Optional)
Manual Transmission Fluid:
BMW Manual Gearbox Oil (e.g., SAE 75W-90, specific BMW part numbers available in manual)
Automatic Transmission Fluid:
Dexron II or equivalent (specific BMW ATF part numbers available in manual)
Crash Test Results:
Limited official crash test data for this era, but E30 chassis known for robust construction.
ABS:
Optional Anti-lock Braking System (ABS)
Seatbelts:
3-point front seatbelts, optional rear seatbelts.
Driver Airbag:
Not standard on all models, introduced later in the generation.
Crumple Zones:
Engineered front and rear crumple zones for improved occupant protection.
Oil Change Interval:
Every 7,500-10,000 miles (or 12,000-16,000 km) or 1 year, whichever comes first.
Timing Belt Replacement Interval:
Every 60,000 miles (96,000 km) or 5 years.
Coolant Flush Interval:
Every 2 years or 30,000 miles (48,000 km).
Engine Oil Specification:
API SG, ACEA A3/B3, SAE 10W-40 or 15W-50 (refer to manual for precise recommendations based on climate).
Brake Fluid Specification:
DOT 3 or DOT 4
Head Gasket Leaks:
Can be prone to head gasket failures if overheated, especially the M20 engine. Manual details diagnosis and replacement.
Timing Belt Failure:
Critical to adhere to replacement intervals due to catastrophic engine damage if it breaks.
Fuel Injector Issues:
Potential for clogged or failing fuel injectors leading to poor idle or performance.
Rubber Component Degradation:
Hoses, bushings, and seals can degrade over time due to age, requiring replacement. Manual provides guidance.
Brand Legacy:
BMW's reputation for building driver-focused vehicles with superior engineering and performance.
E30 Introduction:
The E30 platform, introduced in 1982, revolutionized BMW's compact executive segment, offering a sportier alternative to its predecessors.
325I Positioning:
The 325i represented the pinnacle of the E30's mainstream performance offerings, bridging the gap to the M3.
Production Years:
1982-1994 (E30 platform), 325i specific variants 1987-1991 in this context.
Manufacturing Locations:
Germany (primarily Dingolfing Plant)
Car And Driver 10Best:
The E30 3 Series, including variants like the 325i, was a consistent recipient of Car and Driver's '10Best' list during its production run for its exceptional driving characteristics.
Handling Reviews:
Universally praised by automotive journalists for its sublime handling, steering feel, and driver engagement.
Oem Standard:
This manual adheres to OEM diagnostic and repair standards as expected for BMW documentation of this era.
