🏷️ Basic Information

Make:

BMW

Model:

323i

Production Years Covered:

1999, 2000, 2001, 2002, 2003, 2004, 2005

Chassis Code:

E46

👋 Introduction

Segment:

Compact Executive Sedan

Target Audience:

Drivers seeking a blend of performance, luxury, and driving dynamics, often appealing to enthusiasts and those appreciating German engineering.

Key Competitors:

Mercedes-Benz C-Class (W203), Audi A4 (B6), Lexus IS300, Infiniti G35.

Driving Dynamics:

Renowned for its balanced chassis, RWD bias, and engaging steering, offering a 'driver's car' experience.

Engine Performance:

Smooth and responsive inline-six engines providing ample power for its class.

Interior Quality:

High-quality materials, driver-focused cockpit, and a premium feel typical of BMW.

📋 Manual Details

Manual Type:

Workshop Service Manual / Repair Manual

Language:

English

Format:

PDF Download

Availability:

Instant Download

📖 Manual Coverage

Engine Mechanical:

Detailed overhaul procedures, component identification, timing chain, piston and ring specifications, cylinder head assembly, crankshaft and connecting rod installation, lubrication system.

Engine Management:

Fuel injection system (Bosch Motronic ME 7.2), ignition system, emissions control, OBD-II diagnostics, sensor and actuator testing, troubleshooting guides.

Transmission Manual:

Clutch operation, gearbox overhaul, shift linkage adjustment, lubrication specifications.

Transmission Automatic:

ZF 5HP19 transmission: operation, diagnosis, fluid level and change procedures, torque converter, valve body overhaul.

Drivetrain:

Rear-wheel drive system, driveshaft, differential, axle shafts, wheel bearings.

Suspension:

Front MacPherson strut system, rear multi-link suspension, shock absorbers, springs, control arms, bushings, alignment specifications.

Steering:

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

Brakes:

Front and rear disc brakes, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake fluid specifications, bleeding procedures, caliper and rotor replacement, parking brake.

Electrical System:

Battery, charging system (alternator), starter motor, fuses and relays, wiring diagrams, lighting system, horn, power windows, power locks.

Climate Control:

HVAC system, refrigerant type (R134a), A/C compressor, blower motor, heater core, climate control unit diagnosis.

Body And Frame:

Body panel removal and installation, door mechanisms, hood, trunk, bumper systems, corrosion protection.

Interior Trim:

Dashboard, door panels, seat removal and installation, headliner, carpet.

Safety Systems:

Airbag system (SRS), seat belt operation, crash sensor locations.

Routine Maintenance:

Oil and filter changes, air filter replacement, spark plug replacement, coolant flush, brake fluid flush, transmission fluid change, differential fluid change.

Troubleshooting:

System-specific diagnostic trees, common fault codes (DTCs), symptom-based troubleshooting for engine, transmission, brakes, and electrical systems.

Repair And Rebuild:

Complete engine rebuild, transmission overhaul, suspension component replacement, brake caliper service, steering rack replacement.

Diagnostics:

Using BMW diagnostic tools (e.g., DIS, ISTA), interpreting scan tool data, testing sensors and actuators, troubleshooting electronic modules.

Electrical Troubleshooting:

Reading and interpreting wiring diagrams, testing circuits, diagnosing electrical faults, component testing.

Heating And Ac Service:

Refrigerant handling, leak detection, component replacement (compressor, condenser, evaporator), system evacuation and recharging.

Depth:

Comprehensive coverage from basic maintenance to advanced diagnostics and complete component overhauls, suitable for both professional technicians and advanced DIY enthusiasts.

📊 Manual Specifications

Type:

PDF

Searchable:

Yes

Printable:

Yes

Resolution:

High-resolution, clear diagrams and text

Manual Format:

Digital Download (PDF)

Manual Format:

N/A (Digital)

⚙️ Engine Specifications

Engine Code:

M54B25

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:

10.2:1

Horsepower:

184 hp @ 6000 rpm

Torque:

237 Nm (175 lb-ft) @ 3500 rpm

Induction:

Electronic Fuel Injection (EFI) - Bosch Motronic ME 7.2

Fuel Type:

Premium Unleaded Gasoline (91 Octane or higher recommended)

Valvetrain:

Double Overhead Camshafts (DOHC), 4 valves per cylinder, VANOS (variable camshaft timing).

🔧 Transmission

Type:

5-Speed Manual Getrag GS5-39DZ

Type:

5-Speed Automatic ZF 5HP19

Manual Gear Ratios:

1st: 4.235, 2nd: 2.527, 3rd: 1.672, 4th: 1.215, 5th: 1.000, Reverse: 3.933

Automatic Features:

Steptronic manual shifting mode.

Manual Transmission Fluid:

BMW MTF LT-2 or equivalent (refer to manual for specific part number)

Automatic Transmission Fluid:

BMW ATF LT-3 or equivalent (refer to manual for specific part number and capacity)

📐 Dimensions

Length:

4471 mm (176.0 in)

Width:

1739 mm (68.5 in)

Height:

1415 mm (55.7 in)

Wheelbase:

2760 mm (108.7 in)

Front Track:

1471 mm (57.9 in)

Rear Track:

1476 mm (58.1 in)

Curb Weight Manual:

1470 kg (3241 lbs)

Curb Weight Automatic:

1495 kg (3296 lbs)

Gross Vehicle Weight Rating:

Approximately 1950 kg (4300 lbs) - consult specific vehicle VIN

Wheel Bolt Pattern:

5x120

Wheel Offset:

ET47 (for 7x16 wheels)

Trunk Volume:

430 Liters (15.2 cu ft)

🛡️ Safety Features

NHTSA Front Impact:

4/5 Stars (Driver/Passenger)

IIHS Side Impact:

Good (for models equipped with side airbags)

ABS:

Standard

Traction Control:

Standard (ASC+T)

Stability Control:

Optional (DSC - Dynamic Stability Control)

Airbags:

Frontal airbags (driver and passenger) standard. Optional side airbags and head airbags.

Seatbelts:

3-point inertia-reel seat belts with pre-tensioners and force limiters for all seating positions.

💡 Technology Features

Audio System:

Standard BMW Business CD or optional BMW Professional CD/Radio with features like DSP (Digital Sound Processing) and premium speaker options.

Navigation:

Optional MK III or MK IV navigation system available on some models.

Parking Sensors:

Optional Park Distance Control (PDC) rear sensors.

Cruise Control:

Standard cruise control system.

Phone Integration:

Optional Bluetooth preparation and hands-free systems available on later models.

Remote Keyless Entry:

Standard key fob with remote central locking and trunk release.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 - 15,000 miles or 12-24 months, based on BMW's Condition Based Service (CBS) system and driving conditions. Consult manual for specific recommendations.

Spark Plug Replacement:

Typically around 60,000 miles (check manual for specific M54 recommendation).

Coolant Flush:

Every 2-4 years or as indicated by CBS.

Brake Fluid Flush:

Every 2 years.

Engine Oil:

BMW Longlife-01 (LL-01) or LL-04 approved synthetic oil, typically 5W-30 or 5W-40. Oil capacity: 6.5 liters (6.9 US quarts).

Coolant:

BMW Blue Antifreeze/Coolant (G48) or equivalent, mixed with distilled water (50/50 ratio). Coolant capacity: 8.0 Liters (8.5 US Quarts).

Power Steering Fluid:

BMW Power Steering Fluid (P/N 82-11-0-007-057) or Pentosin CHF 11S. Capacity: ~1.0 Liter.

Ccv System:

Crankcase Ventilation (CCV) system can clog, leading to oil leaks and poor engine performance.

Cooling System:

Plastic coolant expansion tanks can become brittle and crack. Water pump failures are also common.

Oil Pan Gasket Leaks:

Oil pan gaskets and valve cover gaskets are prone to leaks due to age and material degradation.

Suspension Bushings:

Front control arm bushings and rear subframe bushings can wear out, affecting handling and ride quality.

Window Regulators:

Power window regulators are a common failure point.

ABS Wheel Speed Sensors:

ABS wheel speed sensors can fail, triggering ABS and/or traction control warning lights.

📚 Vehicle History

Bmw Legacy:

BMW, established in 1916, has a long-standing reputation for producing driver-focused, high-performance luxury vehicles, particularly known for its inline-six engines and rear-wheel-drive chassis.

E46 Introduction:

The E46 generation of the 3 Series was introduced in 1998 as a successor to the E36. The 323i model was part of the initial E46 lineup.

E46 Facelift:

The E46 received a significant facelift (LCI - Life Cycle Impulse) in 2001, which included revised styling for the headlights, taillights, bumpers, and hood. The 323i model was phased out and replaced by the 325i with the M54B25 engine in 2000/2001, effectively covering the same displacement and performance bracket.

Manufacturing Locations:

Primarily manufactured in Germany (e.g., Munich, Dingolfing) and also assembled in various international locations.

Production Run:

The E46 3 Series was produced from 1998 to 2006 (sedan until 2005, coupe/convertible until 2006). The 323i specifically covered the earlier part of this generation's production.

🏆 Awards & Recognition

Car And Driver 10Best:

The E46 3 Series platform, including variants similar to the 323i, was frequently recognized on Car and Driver's 10Best lists for its exceptional driving dynamics and overall performance during its production run.

Jd Power Ratings:

While specific ratings for the 323i might vary, the E46 generation generally received good to excellent ratings in quality and dependability from JD Power and Associates for its time.