BMW 323 323i 1999 Factory Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 323i Model Variant: 323 Year: 1999 Codes Chassis Code: E46 Engine Code: M52TUB25 👋 Introduction Market Position Segment: Entry-level luxury compact sedan/coupe. Target...

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Mots clés: 1999 323 323i BMW Car Cars Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

Model Variant:

Year:

Codes

Chassis Code:

Engine Code:

M52TUB25

👋 Introduction

Market Position

Segment:

Entry-level luxury compact sedan/coupe.

Target Audience:

Enthusiast drivers seeking sporty handling and premium build quality.

Competitive Analysis

Competitors 1999:

Mercedes-Benz C-Class (W202), Audi A4 (B5), Lexus IS200/IS300 (XE10).

Key Features

Handling:

Renowned for its balanced chassis and engaging driving dynamics.

Powertrain:

Smooth inline-six engine providing good power delivery.

Build Quality:

Typical BMW premium interior fit and finish.

📋 Manual Details

Coverage Areas

General Coverage:

Complete factory service and repair information for the 1999 BMW 323i (E46).

Specific Systems:

Engine mechanical, engine electrical, fuel system, exhaust system, transmission, drivetrain, suspension, steering, brakes, climate control, body electrical, chassis, interior.

Page Count

Estimated Pages:

Hundreds of pages (specific count not provided, but described as 'complete').

Manual Type

Type:

Factory Service Repair Manual

Language

Language:

English

Format

Format:

Downloadable PDF

File Format

File Type:

Print Quality

Quality:

High-resolution, designed for clear printing of diagrams and text.

Binding Type

Binding:

Not applicable (digital download).

Paper Type

Paper:

Not applicable (digital download).

Searchability

Text Search:

Likely searchable text within the PDF for efficient information retrieval.

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Detailed diagnostics, disassembly, assembly, and specifications for the M52TUB25 inline-six engine.

Engine Electrical:

Engine control unit (DME), sensor diagnostics, wiring diagrams, ignition system, starting system, charging system.

Fuel System:

Fuel injection system, fuel pump, injectors, fuel pressure regulation, evaporative emission control (EVAP).

Transmission:

Manual and automatic transmission servicing, diagnostics, and repair procedures.

Drivetrain:

Rear-wheel drive system, driveshafts, differential, axle components.

Suspension:

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

Steering:

Power steering system, steering rack, tie rods, steering column.

Brakes:

Front and rear brake systems (discs), ABS, DSC (Dynamic Stability Control) diagnostics and repair.

Climate Control:

HVAC system diagnostics, refrigerant handling, component replacement.

Body Electrical:

Lighting, power windows, power locks, mirrors, remote keyless entry, body control modules (BCM).

Chassis:

Frame and unibody structure, corrosion protection.

Interior:

Seat adjustment, airbag system, dashboard, trim panel removal.

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks, spark plug replacement.

Troubleshooting:

Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides for various systems.

Repair:

Step-by-step repair procedures for virtually all mechanical and electrical components.

Installation:

Guidelines for component replacement and installation.

Diagnostics:

Detailed diagnostic procedures, including the use of BMW's diagnostic tools (e.g., GT1, DIS).

Technical Depth

Depth:

Comprehensive; covers basic to advanced repairs and diagnostics.

Rebuild Procedures:

Includes detailed procedures for engine and transmission rebuilding.

Wiring Diagrams:

Extensive and detailed electrical wiring diagrams for all systems.

⚙️ Engine Specifications

Primary Engine

Engine Name:

M52TUB25

Engine Type:

Naturally Aspirated Inline-6 (Straight-6)

Displacement:

2494 cc (2.5 Liters)

Bore X Stroke:

84.0 mm x 75.0 mm

Compression Ratio:

10.2:1

Valvetrain:

DOHC (Dual Overhead Camshafts), 4 valves per cylinder, Double VANOS (Variable Valve Timing)

Performance

Horsepower:

168 hp @ 5500 rpm (approx.)

Torque:

181 lb-ft @ 3800 rpm (approx.)

Fuel System

Fuel Delivery:

Electronic Multi-Point Fuel Injection (MPI) with Siemens MS43 DME

Recommended Fuel:

91 Octane Unleaded Gasoline

Cooling System

Coolant Capacity:

Approximately 8.0 liters (8.5 US quarts)

🔧 Transmission

Standard

Type:

5-speed Manual Transmission (Getrag 250/450)

Optional

Type:

5-speed Automatic Transmission (Steptronic available on some models)

Features

Transmission Fluid Spec Manual:

BMW MTF LT-2 or equivalent API GL-4 SAE 75W-80

Transmission Fluid Spec Auto:

BMW ATF LT-3 (or Dexron III compatible)

📐 Dimensions

Exterior

Wheelbase:

2760 mm (108.7 inches)

Length:

4471 mm (176.0 inches)

Width:

1739 mm (68.5 inches)

Height:

1415 mm (55.7 inches)

Weights

Curb Weight Manual:

Approximately 1420 kg (3131 lbs)

Curb Weight Auto:

Approximately 1460 kg (3219 lbs)

Gross Vehicle Weight Rating:

Varies by specific configuration, consult VIN.

Wheels Tires

Wheel Bolt Pattern:

5 x 120 mm

Standard Tire Size:

205/55 R16

Optional Tire Size:

225/50 R16, 205/50 R17, 225/45 R17

🛡️ Safety Features

Ratings

NHTSA Front Impact:

4-star (Driver and Passenger, 1999 test protocols).

IIHS Side Impact:

Acceptable (for E46 generation).

Active Features

Standard Anti-lock Braking System.

Optional or standard on some trims, Dynamic Stability Control (Traction Control functionality included).

Passive Features

Airbags:

Frontal airbags (driver and passenger), optional side airbags.

Seatbelts:

Three-point seat belts with pretensioners.

💡 Technology Features

Infotainment

Radio:

BMW Business CD (optional) or Business Cassette.

Navigation:

Optional BMW Navigation System (MKIII or MKIV based).

Driver Assistance

Parking Sensors:

Optional Rear Park Distance Control (PDC).

Connectivity

Onboard Computer:

Standard onboard computer for fuel economy, range, and trip data.

Comfort Features

Cruise Control:

Standard.

Climate Control Type:

Manual AC or optional Automatic Climate Control (ACC).

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 7,500 - 15,000 miles or 12 months, depending on driving conditions and oil type (refer to manual for specific condition-based service recommendations).

Air Filter Replacement:

Every 30,000 miles or as needed based on inspection.

Cabin Air Filter Replacement:

Every 15,000 - 30,000 miles or annually.

Spark Plug Replacement:

Every 60,000 - 100,000 miles for platinum/iridium plugs, depending on type.

Brake Fluid Flush:

Every 2 years, regardless of mileage.

Coolant Replacement:

Initial fill and then typically every 2-4 years or 30,000-50,000 miles.

Fluid Specifications

Engine Oil Spec:

BMW Longlife-01 (LL-01) or LL-98 approved synthetic oil, SAE 5W-30 or 5W-40 recommended.

Engine Oil Capacity:

Approximately 6.5 liters (6.9 US quarts) with filter change.

Power Steering Fluid:

BMW PSF or Pentosin CHF 11S.

Known Issues

Cooling System Weaknesses:

Plastic expansion tank prone to cracking, water pump failure (plastic impeller), thermostat housing leaks, heater core failure.

Vanos System:

Solenoid seals and rattle can degrade, leading to rough idle and loss of low-end torque.

Oil Leaks:

Valve cover gasket, oil filter housing gasket, oil pan gasket are common leak points.

Suspension Wear:

Control arm bushings, sway bar links, and ball joints are common wear items.

Window Regulators:

Plastic components in power window regulators can break.

ABSorbent Materials:

Headliner and sun visors can sag over time due to adhesive failure.

📚 Vehicle History

Brand Heritage

Bmw Legacy:

BMW has a long-standing reputation for producing driver-focused luxury vehicles with exceptional engineering and performance.

Model Evolution

E46 Introduction:

The E46 generation replaced the E36 3 Series and was produced from 1998 to 2006. It marked a significant evolution in design and technology.

323I Positioning:

The 323i was positioned as a mid-range model in the E46 lineup, offering a balance of performance and efficiency over the base 320i and below the more potent 325i and 330i.

Production

Manufacturing Locations:

Primarily Germany (Dingolfing, Munich), with some assembly in other global locations.

🏆 Awards & Recognition

Recognitions

Car And Driver 10Best:

The E46 generation of the 3 Series (including variants like the 323i) was consistently recognized on Car and Driver's 10Best list for multiple years.

Ratings

Overall Reputation:

Highly regarded for its driving dynamics, build quality, and engineering, a benchmark in its class.