BMW 325 325i 1992 Factory Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 325i Year: 1992 Codes Chassis Code: E36 Engine Code: M50B25 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe Reputation: Known for sporty handling,...

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Mots clés: 1992 325 325i BMW Car Cars Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

Year:

Codes

Chassis Code:

Engine Code:

M50B25

👋 Introduction

Market Position

Segment:

Compact Executive Sedan/Coupe

Reputation:

Known for sporty handling, driver engagement, and build quality

Competitive Analysis

Competitors:

Mercedes-Benz 190E, Audi 90, Lexus ES250, Acura Legend

Key Features

Driving Dynamics:

Rear-wheel drive platform, near 50/50 weight distribution, multi-link rear suspension

Powertrain:

Inline-six engine known for smooth power delivery and durability

Design:

E36 platform represented a modern evolution of BMW's design language

📋 Manual Details

Coverage Areas

Coverage Scope:

Complete factory service and repair

Diagnostic Coverage:

Extensive troubleshooting and diagnostic procedures

Maintenance Coverage:

Scheduled maintenance, routine service, and inspections

Repair Coverage:

Detailed step-by-step repair instructions for all major systems

Page Count

Estimated Pages:

Hundreds (specific count not provided, but implied comprehensive coverage)

Manual Type

Type:

Factory Service Repair Manual (FSM)

Language

Language:

English

Format

Format:

Downloadable PDF

📖 Manual Coverage

Systems Covered

Engine:

Engine mechanical, lubrication, cooling, fuel, ignition, exhaust, engine management (DME)

Transmission:

Manual and automatic transmission systems, clutch, driveline

Suspension:

Front and rear suspension, steering system, wheel alignment

Brakes:

Brake system (hydraulic and mechanical), ABS, parking brake

Electrical:

Starter, alternator, battery, lighting system, wiring diagrams, instrument cluster, power accessories

Body:

Body panels, doors, windows, interior trim, exterior trim, convertible top (if applicable)

Climate Control:

HVAC system, air conditioning, heating, ventilation

Safety Systems:

Airbags (if equipped), seat belts, safety restraints

Procedures Included

Maintenance Procedures:

Oil change, filter replacement, spark plug replacement, fluid checks and changes, belt inspection/replacement

Diagnostic Procedures:

Troubleshooting charts, fault code interpretation, component testing

Repair Procedures:

Component removal and installation, adjustments, overhauls, sub-assembly rebuilds

Wiring Diagrams:

Comprehensive electrical system wiring diagrams with component identification

Technical Depth

Depth:

Complete factory-level repair and diagnostic information

Diagnostic Tools:

Information relevant to BMW specific diagnostic tools (e.g., GT1, DIS) for older models

Torque Specifications:

Detailed torque specifications for all fasteners

Clearances Tolerances:

Engine and mechanical component clearances and tolerances for rebuilding

📊 Manual Specifications

File Format

File Type:

Searchability:

Likely text-searchable (standard for official PDF manuals)

Print Quality

Printability:

High quality, suitable for printing individual sections or the entire manual

Binding Type

Binding Type:

N/A (Digital PDF format)

Paper Type

Paper Type:

N/A (Digital PDF format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Naturally Aspirated Inline 6-Cylinder

Displacement:

2.5 Liters (2494 cc)

Bore X Stroke:

84.0 mm x 75.0 mm

Compression Ratio:

8.8:1

Valve Train:

DOHC, 4 Valves per Cylinder

Performance

Horsepower:

189 hp @ 5900 rpm

Torque:

204 lb-ft @ 4200 rpm

Fuel System

Fuel Delivery:

Bosch Motronic Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Premium Gasoline (91 octane or higher recommended)

Engine Management:

Digital Engine Electronics (DME)

🔧 Transmission

Standard

Type:

5-speed Manual Transmission

Optional

Type:

4-speed Automatic Transmission (Steptronic optional later, but unlikely standard for '92 325i)

Features

Clutch:

Hydraulically actuated single-plate dry clutch (Manual)

Final Drive Ratio:

Typically 3.46:1 (for manual), variations may exist

Transmission Fluid Manual:

BMW recommends specific synthetic gear oil (e.g., SAE 75W-90, specific part numbers may vary by dealer)

Transmission Fluid Automatic:

Dexron III or equivalent automatic transmission fluid (ATF)

📐 Dimensions

Exterior

Length:

174.5 inches (4432 mm)

Width:

67.3 inches (1710 mm)

Height:

54.7 inches (1390 mm)

Wheelbase:

106.1 inches (2695 mm)

Front Track:

55.5 inches (1410 mm)

Rear Track:

55.7 inches (1415 mm)

Weights

Curb Weight:

Approximately 3300 - 3400 lbs (1497 - 1542 kg), varies by body style and options

Gross Vehicle Weight Rating:

Specific GVWR not readily available, but typically around 4400 lbs

Towing Capacity:

Not typically recommended or designed for towing

🛡️ Safety Features

Ratings

NHTSA Front Impact:

4 Stars (Driver), 4 Stars (Passenger) for E36 chassis sedans, coupes may differ slightly

IIHS Offset Crash Test:

Good (for models tested, often 1997+ models are cited for this rating, but E36 chassis generally performed well for its era)

Active Features

Anti-lock Braking System (Standard)

Traction Control:

Automatic Stability Control (ASC+T) often available as an option or standard on later models, but not universally standard on '92 325i

Passive Features

Airbags:

Driver's side airbag (Standard)

Seat Belts:

3-point front seatbelts with pretensioners, 3-point rear seatbelts

Body Structure:

Reinforced safety cell, crumple zones

💡 Technology Features

Infotainment

Audio System:

Factory BMW Bavaria C Business/Professional CD/RDS radio (optional CD changer available)

Display:

Digital clock, temperature display, OBC (On-Board Computer) in instrument cluster

Driver Assistance

Cruise Control:

Standard on most 325i models

Parking Sensors:

Not available on 1992 models

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically 7,500 - 10,000 miles or 12 months (whichever comes first) with synthetic oil.

Engine Coolant Flush:

Every 2-3 years or 30,000-50,000 miles (BMW blue coolant recommended)

Spark Plug Replacement:

Approximately 60,000 miles (for original spec spark plugs)

Drive Belt Inspection:

Inspect at every oil change, replace as needed or at 60,000-100,000 miles

Fluid Specifications

Engine Oil Type:

SAE 5W-30 or 5W-40 Synthetic (e.g., Castrol Syntec, BMW High Performance Synthetic)

Engine Oil Capacity:

6.5 US quarts (6.2 liters) with filter change

Coolant Type:

BMW Blue Antifreeze/Coolant (G48) or equivalent ethylene glycol based with corrosion inhibitors

Brake Fluid Type:

DOT 4 recommended (flush every 2 years)

Known Issues

Cooling System Weak Points:

Plastic expansion tanks can become brittle and crack; water pump failure is common.

Oil Leaks:

Valve cover gasket and oil pan gasket can leak over time.

Suspension Wear:

Control arm bushings (bushings themselves wear out), rear trailing arm bushings, and shock mounts are common wear items.

Electrical Gremlins:

Corroded grounds, faulty door modules, and HVAC blower motor resistor issues can occur.

ABS Sensor Failure:

ABS wheel speed sensors are prone to failure, leading to ABS/ASC warning lights.

📚 Vehicle History

Brand Heritage

Brand Focus:

Performance, luxury, engineering excellence

Model Evolution

E36 Introduction:

The E36 generation BMW 3 Series was introduced in 1990 in Europe and 1991 in North America.

325I Positioning:

The 325i was the mid-range performance offering in the E36 lineup for 1992, slotting above the 318i and below the M3 (which arrived later).

Production

Production Years E36:

1990-2000 (global)

Manufacturing Locations:

Germany (Dingolfing, Munich), Austria (Graz, Magna Steyr), South Africa, Mexico, Thailand

🏆 Awards & Recognition

Recognitions

Car And Driver 10Best:

The E36 3 Series was a frequent recipient of Car and Driver's 10Best list, including the 325i for its class-leading dynamics.

Motor Trend Car Of The Year:

While not a winner, the E36 was a strong contender and highly regarded by MotorTrend.

Certifications

Epa Fuel Economy City:

Approx. 18 MPG (Varies with driving conditions and manual/auto)

Epa Fuel Economy Highway:

Approx. 25 MPG (Varies with driving conditions and manual/auto)