BMW 325 325i 2001 Factory Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 325i Year: 2001 Codes Chassis Code: E46 Generation Generation Name: Fourth Generation E46 Generation Years: 1998-2006 (Global), 1999-2006 (North America) 👋 Introduction Market...

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Description

🏷️ Basic Information

Identification

Make:

Model:

Year:

Codes

Chassis Code:

Generation

Generation Name:

Fourth Generation E46

Generation Years:

1998-2006 (Global), 1999-2006 (North America)

👋 Introduction

Market Position

Market Position:

The BMW 3 Series (E46) was positioned as a compact executive/sport sedan, renowned for its driving dynamics, build quality, and premium appeal, competing directly with vehicles like the Mercedes-Benz C-Class and Audi A4.

Competitive Analysis

Competitive Analysis:

The E46 generation of the 3 Series solidified BMW's reputation for 'The Ultimate Driving Machine,' offering a balanced chassis, responsive powertrains, and a driver-focused interior that set it apart from its more comfort-oriented competitors.

Key Features

Key Features:

Rear-wheel drive bias, near 50/50 weight distribution, sophisticated suspension geometry, responsive inline-six engines, and a driver-centric cockpit.

📋 Manual Details

Coverage Areas

Coverage Areas List:

• Engine Mechanical

• Engine Management (DME)

• Fuel System

• Cooling System

• Exhaust System

• Ignition System

• Transmission (Manual & Automatic)

• Drivetrain

• Suspension System

• Steering System

• Brake System (ABS, DSC)

• Wheels and Tires

• Body and Chassis

• Interior and Exterior Trim

• Heating, Ventilation, and Air Conditioning (HVAC)

• Electrical System

• Instrument Cluster and Gauges

• Lighting System

• Audio System

• Power Accessories (Windows, Locks, Mirrors)

• Restraint Systems (Airbags, Seatbelts)

• Diagnostic Procedures

• Troubleshooting Charts

• Wiring Diagrams

• Torque Specifications

• Maintenance Schedules

• Component Replacement Procedures

• Fluid Capacities and Specifications

• Torque Converter Lock-up Clutch

Page Count

Estimated Page Count:

1000+

Manual Type

Manual Type:

Factory Service Manual / Repair Manual

Manual Purpose:

Intended for use by professional technicians and knowledgeable DIY enthusiasts.

Language

Language:

English

Format

Format:

Downloadable PDF

📖 Manual Coverage

Systems Covered

Systems Covered List:

• Engine (M54B30)

• Transmission (GM A5S360R, A5S390R Automatic; Getrag GS5390H Manual)

• Drivetrain (Rear Wheel Drive)

• Suspension (Front McPherson Strut, Rear Multi-link)

• Braking (Front Ventilated Discs, Rear Solid Discs, ABS/DSC)

• Steering (Hydraulic Power Steering)

• Electrical System (12V, High-current distribution, various control modules)

• HVAC

• Bodywork

• Interior Systems

• Safety Systems (Airbags, Seatbelt Pretensioners)

Electrical System Detail:

Detailed coverage of the body control module (BCM), instrument cluster, lighting, power windows, central locking, keyless entry, and diagnostic port (OBD-II) functions.

Procedures Included

Procedures Included List:

• Routine Maintenance

• Scheduled Service

• Diagnostic Trouble Code (DTC) Interpretation

• Component Diagnosis and Testing

• Removal and Installation of Major Components

• Engine Overhaul

• Transmission Rebuild

• Brake System Bleeding and Repair

• Suspension Alignment and Component Replacement

• Electrical System Troubleshooting

• Fuel System Diagnosis and Repair

• Cooling System Flush and Repair

• Ignition System Service

• Exhaust System Repair

• Wheel and Tire Service

• Body Panel Repair and Adjustment

• Interior Trim Removal and Installation

• HVAC System Servicing

• Airbag System Diagnosis

• Wiring Harness Repair

• Troubleshooting guides for common faults

Diagnostic Troubleshooting:

Detailed diagnostic flowcharts, symptom-based troubleshooting, and specific fault code explanations.

Wiring Diagrams:

Complete electrical schematics for all major systems, including color coding and component locations.

Special Tools:

Identification of necessary BMW special tools and their application for specific repair procedures.

Technical Depth

Technical Depth:

Comprehensive (from basic fluid changes to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures).

Torque Specifications:

Precise torque values for all fasteners across all systems, crucial for proper assembly and preventing component damage.

📊 Manual Specifications

File Format

File Format:

PDF (Portable Document Format)

Print Quality

Print Quality:

High-resolution, suitable for professional printing.

Binding Type

Binding Type:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Code:

M54B30

Engine Configuration:

Inline 6-cylinder, DOHC, 24 valves

Engine Displacement:

2979 cc (3.0 Liters)

Performance

Horsepower Rating:

225 hp @ 5900 rpm

Torque Rating:

214 lb-ft @ 3500 rpm

Fuel System

Fuel Delivery:

Sequential Multi-Port Fuel Injection (Bosch Motronic ME7.2)

Fuel Type:

Premium Unleaded (91 Octane or higher recommended)

General

Engine Management:

BMW Digital Motor Electronics (DME) ME7.2

Engine Cooling System:

Pressurized liquid cooling system with electric cooling fan and thermostat.

🔧 Transmission

Standard

Transmission Type Standard:

5-Speed Manual (Getrag GS5390H)

Optional

Transmission Type Optional:

5-Speed Automatic (GM A5S360R / A5S390R)

Features

Transmission Features:

Automatic transmission features Steptronic (manual shifting mode) and Adaptive Transmission Control (ATC).

📐 Dimensions

Exterior

Length:

177.4 inches (4506 mm)

Width:

68.5 inches (1739 mm)

Height:

56.1 inches (1425 mm)

Wheelbase:

107.4 inches (2728 mm)

Front Track:

58.2 inches (1478 mm)

Rear Track:

58.6 inches (1488 mm)

Weights

Curb Weight Approx:

3350-3450 lbs (1520-1565 kg)

Gross Vehicle Weight Rating:

4500 lbs (2041 kg)

Front Axle Weight Rating:

2165 lbs (982 kg)

Rear Axle Weight Rating:

2335 lbs (1059 kg)

Cargo

Trunk Volume:

11.7 cubic feet (331 liters)

🛡️ Safety Features

Ratings

NHTSA Front Impact Driver:

5-Star

NHTSA Front Impact Passenger:

5-Star

IIHS Front Offset Crash Rating:

Active Features

Active Safety Features:

Anti-lock Braking System (ABS), Dynamic Stability Control (DSC), Traction Control System (TCS)

Passive Features

Passive Safety Features:

Front airbags, front side-impact airbags, front seatbelt pretensioners, LATCH (Lower Anchors and Tethers for Children) system.

💡 Technology Features

Infotainment

Infotainment System:

Optional BMW Business CD or Professional CD audio systems. Navigation system available on higher trims.

Driver Assistance

Driver Assistance Features:

Standard ABS, DSC, and Traction Control. Parking sensors (PDC) optional.

Connectivity

Connectivity Features:

Optional Bluetooth hands-free system available on later models.

🔧 Maintenance

Service Intervals

Oil Change Interval:

BMW Condition Based Service (CBS) system, typically around 10,000-15,000 miles or 12-24 months, depending on driving conditions.

Spark Plug Replacement:

Approx. 100,000 miles (for iridium spark plugs)

Coolant Flush Interval:

Every 2 years or 30,000 miles

Fluid Specifications

Engine Oil Specification:

BMW Longlife-01 (LL-01) or BMW Longlife-98 (LL-98) compliant synthetic oil, viscosity typically 0W-30 or 5W-30.

Coolant Specification:

BMW Blue Coolant (G48 ethylene glycol based) or equivalent.

Brake Fluid Specification:

DOT 4

Automatic Transmission Fluid Type:

BMW ATF LT-3 (or equivalent specified for GM transmissions of that era).

Manual Transmission Fluid Type:

BMW MTF LT-2 or equivalent GL-4/GL-5 specification.

Power Steering Fluid Type:

Pentosin CHF 11S or equivalent hydraulic fluid.

Known Issues

Known Issues List:

• Coolant expansion tank cracks

• Oil leaks from valve cover gasket and oil pan gasket

• PCV (Positive Crankcase Ventilation) system issues

• Vanosi (Variable Valve Timing) actuator failure

• Subframe cracking (especially rear subframe mounts)

• Window regulator failures

• ABS/DSC sensor failures

• Ignition coil failures

• Water pump failure (often plastic impeller)

Known Issues Details:

The manual provides detailed diagnostic and repair procedures for all common E46 known issues, including specific part numbers and troubleshooting steps.

📚 Vehicle History

Brand Heritage

Brand Heritage Summary:

BMW boasts a long and storied history of engineering performance vehicles, emphasizing driving pleasure and superior handling, dating back to its origins in aircraft engine manufacturing.

Model Evolution

Model Evolution Summary:

The E46 generation represented a significant evolution of the 3 Series, refining the already successful E36 platform with improved aerodynamics, a more rigid chassis, and advanced technology, solidifying its status as a benchmark in its class.

Production

Production Years E46:

1998-2006

Manufacturing Locations:

Germany (Munich, Dingolfing), Austria, South Africa, Egypt, Russia, Thailand, India, Indonesia, Malaysia, Vietnam, China.

🏆 Awards & Recognition

Recognitions

Recognitions List:

• Car and Driver: 10 Best Cars (multiple years for E46 generation)

• Ward's AutoWorld: 10 Best Engines (for the M54 engine)