BMW 325 325i 1987-1991 Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 325 / 325i Product Name: BMW 325 325i 1987-1991 Workshop Service Repair Manual Generation Generation Designation: E30 Codes Chassis Code: E30 Engine Codes:...

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Taper: Car

Distributeur:

UGS: 358675

Mots clés: 1987 1988 1989 1990 1991 325 325i BMW Car Cars Misc

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Model:

325 / 325i

Product Name:

BMW 325 325i 1987-1991 Workshop Service Repair Manual

Generation

Generation Designation:

Codes

Chassis Code:

Engine Codes:

M20B25

👋 Introduction

Market Position

Target Audience:

BMW E30 owners, independent repair shops, and automotive technicians working on the BMW 325/325i (E30).

Value Proposition:

Provides factory-level diagnostic and repair information essential for maintaining and restoring these classic BMWs.

Competitive Analysis

Manual Authenticity:

Official factory service manual, offering superior accuracy and detail compared to aftermarket or Haynes-style manuals.

Key Features

Completeness:

Complete official full factory service repair manual, covering all aspects of vehicle maintenance and repair.

Usability:

Printable format allows for practical use in a workshop environment.

📋 Manual Details

Coverage Areas

Covered Model Years:

1987, 1988, 1989, 1990, 1991

Page Count

Estimated Page Count:

Hundreds of Pages (Specific count not provided, but implies comprehensive coverage)

Manual Type

Manual Type:

Workshop Service Repair Manual

Language

Language:

English (Assumed for typical market availability)

Format

Format:

Digital Download (Printable)

📖 Manual Coverage

Systems Covered

Engine Service:

Complete engine overhaul, diagnosis, repair, tuning, and component replacement (e.g., cylinder head, pistons, crankshaft, camshafts, timing belt).

Fuel System:

Fuel injection system (Bosch Motronic), fuel pump, injectors, fuel lines, fuel pressure regulator, fuel tank servicing.

Cooling System:

Radiator, water pump, thermostat, coolant hoses, fan operation, diagnosis of leaks and overheating issues.

Ignition System:

Spark plugs, ignition coils, distributor (if applicable to specific markets/variants), ignition timing adjustment, ECU control.

Exhaust System:

Exhaust manifold, catalytic converter, mufflers, pipes, oxygen sensors, diagnosis of leaks and restrictions.

Transmission Manual:

Manual gearbox overhaul, clutch replacement, gear shift linkage adjustment, fluid specifications.

Transmission Automatic:

Automatic transmission diagnosis, fluid changes, adjustments, and repair procedures (specific to AT variants).

Drivetrain:

Driveshafts, CV joints, differential service, wheel bearings, rear axle assembly.

Suspension:

Front and rear suspension components, shock absorbers, springs, control arms, bushings, alignment procedures.

Steering:

Power steering system, steering rack, tie rods, steering column, fluid specifications, diagnosis of play and leaks.

Brakes:

Front and rear brake systems (discs), calipers, brake pads, brake lines, master cylinder, brake fluid specifications, bleeding procedures, ABS system diagnosis (if equipped).

Electrical System:

Complete wiring diagrams, fuse box layout, starter motor, alternator, battery servicing, lighting systems, accessory circuits.

Engine Management System:

Diagnosis and repair of the Engine Control Unit (ECU), sensors (e.g., MAF, O2, TPS), actuators, and emission control systems.

Body And Interior:

Body panel repair, door mechanisms, window regulators, seat adjustments, interior trim removal and installation.

Heating And Air Conditioning:

HVAC system components, refrigerant service, blower motor, control panels, diagnosis of cooling and heating performance.

Body Electrical:

Power windows, power locks, mirrors, sunroof (if equipped), horn, wipers, washer system.

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, coolant flushes, spark plug replacement, drive belt checks and replacement, brake inspections.

Diagnostic Procedures:

Troubleshooting guides for common symptoms, diagnostic trouble codes (DTCs), component testing procedures.

Repair Procedures:

Step-by-step instructions for disassembling, repairing, and reassembling all major vehicle components.

Rebuild Procedures:

Detailed instructions for engine and transmission rebuilds, including torque specifications and clearances.

Adjustment Procedures:

Idle speed adjustment, ignition timing setting, valve clearance adjustment, parking brake adjustment.

Lubrication Points:

Detailed diagrams of all lubrication points and recommended lubricants.

Technical Depth

Depth Of Coverage:

Comprehensive. Covers everything from basic maintenance and troubleshooting to complete engine, transmission, and driveline overhauls.

Diagnostic Capability:

Advanced. Includes detailed explanations of how systems work, diagnostic charts, and troubleshooting trees for complex issues.

Specification Detail:

High. Provides specific torque values, clearances, fluid capacities, and technical data required for accurate repairs.

📊 Manual Specifications

File Format

File Type:

PDF (Portable Document Format)

Searchability:

Searchable text content (dependent on OCR quality of the original document).

Print Quality

Printability:

High. Designed to be printed for workshop use, allowing users to print specific sections or the entire manual.

Binding Type

Binding Type For Printed:

N/A (Digital Download - User provides binding)

Paper Type

Paper Type For Printed:

N/A (Digital Download - User provides paper)

⚙️ Engine Specifications

Primary Engine

Engine Name:

BMW M20 inline-six

Engine Displacement:

2.5 Liters (2494 cc)

Engine Configuration:

Inline 6-cylinder, SOHC (Single Overhead Camshaft), 12 valves

Performance

Horsepower Approx:

168-170 hp @ 5800 rpm (depending on market and emission controls)

Torque Approx:

164-167 lb-ft @ 4300 rpm (depending on market and emission controls)

Fuel System

Fuel Delivery:

Bosch Motronic electronic fuel injection (EFI)

Fuel Type:

Unleaded gasoline (91 octane or higher recommended)

Engine Internals

Bore X Stroke:

84.0 mm x 75.0 mm

Compression Ratio:

8.8:1

🔧 Transmission

Standard

Standard Transmission:

Getrag 260 5-speed manual transmission

Optional

Optional Transmission:

ZF 4HP22 4-speed automatic transmission

Features

Clutch Type:

Hydraulically operated single dry plate clutch

Fluid Specs

Manual Transmission Fluid:

BMW Manual Transmission Fluid (MTF) LT-2 or equivalent (e.g., Pentosin MTF2)

Automatic Transmission Fluid:

Dexron III or equivalent ATF

📐 Dimensions

Exterior

Wheelbase:

2570 mm (101.2 in)

Length:

4340 mm (170.9 in)

Width:

1670 mm (65.7 in)

Height:

1380 mm (54.3 in)

Weights

Curb Weight Approx:

1300 - 1400 kg (2866 - 3086 lbs) depending on options

Wheels Tires

Wheel Bolt Pattern:

5 x 120 mm

Standard Tire Size:

195/65R14 (e.g., on 14x6.5 inch wheels)

Optional Tire Size:

205/55R15 (e.g., on 15x7 inch wheels)

🛡️ Safety Features

Ratings

Crash Test Data:

Limited official crash test data available from this era; E30 chassis known for robust safety cage construction.

Active Features

Optional Anti-lock Braking System (ABS) available on some models.

Passive Features

Seatbelts:

3-point inertia reel seatbelts with front tensioners.

Steering Column:

Collapsible steering column designed to absorb impact energy.

Body Structure:

Reinforced safety cell with crumple zones.

💡 Technology Features

Infotainment

Radio System:

Factory fitted AM/FM radio with cassette player (often Blaupunkt or Becker units). Aftermarket upgrades are common.

Speaker System:

Basic speaker configurations, often 4 or 6 speakers.

Driver Assistance

ABS Availability:

Optional, as mentioned in Safety.

Connectivity

Early Connectivity:

Limited by modern standards; basic antenna for radio reception.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 5,000-7,500 miles or annually, whichever comes first (refer to manual for exact BMW recommendations).

Spark Plug Replacement:

Approximately every 30,000 miles (check manual for specific plug type and gap).

Timing Belt Replacement:

Crucial maintenance item; typically every 60,000 miles or 4-5 years. Failure can cause catastrophic engine damage.

Fluid Specifications

Engine Oil Specification:

BMW High Performance Synthetic 20W-50 or 20W-40 (check manual for specific recommendations based on climate).

Coolant Specification:

BMW Blue Antifreeze/Coolant (G48) or equivalent, mixed 50/50 with distilled water.

Brake Fluid Specification:

DOT 4 brake fluid.

Known Issues

Common Issues Engine:

Head gasket leaks, oil pan leaks, fuel injector failure, worn fuel pump, timing belt failure (if not replaced).

Common Issues Suspension:

Worn control arm bushings (eccentric bushings), worn tie rod ends, sagging springs, rear shock mount failures.

Common Issues Electrical:

Failing Motronic relay (fuel pump relay), degraded wiring insulation, dead pixels on instrument cluster, failing door lock actuators.

Common Issues Cooling:

Cracked plastic coolant expansion tank, failing water pump, deteriorating hoses.

📚 Vehicle History

Brand Heritage

Bmw History:

BMW has a long-standing reputation for building performance-oriented, driver-focused automobiles with excellent engineering.

Model Evolution

E30 Introduction:

The E30 generation was introduced in 1982 and represented a significant evolution in the 3 Series line, known for its balanced handling and refined styling.

325 Introduction:

The 325i model, featuring the more powerful M20B25 engine, was introduced in 1987, marking a performance upgrade from earlier 323i and 325e models.

Production

Production Period:

1982-1994 (E30 generation), with 325/325i production from 1987 to 1991 for these specific models.

Key Variants:

Includes Sedan, Coupe (often referred to as 'is'), Convertible, and Touring (wagon) body styles, though this manual specifically covers the 325/325i sedan and coupe.

🏆 Awards & Recognition

Recognitions

E30 Legacy:

The E30 3 Series is widely regarded as one of BMW's most iconic and well-engineered generations, praised for its driving dynamics and build quality.

Ratings

Driving Dynamics:

Consistently praised by automotive journalists for its exceptional handling, steering feel, and driver engagement.

Certifications

Bmw Quality Standards:

Built to BMW's stringent quality and engineering standards of the era.