🏷️ Basic Information Identification Make: BMW Model: 323i Model Variant: 323 Year: 2000 Codes Chassis Code: E46 👋 Introduction Market Position Vehicle Segment: Compact Executive Sedan/Coupe. Competitive Analysis Competitors: Mercedes-Benz C-Class (W202), Audi A4 (B5), Lexus IS200, Acura TL. Key Features Driver Focus: Renowned for its sporty handling, rear-wheel-drive dynamics, and premium interior. Engine Emphasis: The M52TU inline-six engine provided a smooth power delivery and refined performance characteristic of BMW. 📋 Manual Details Coverage Areas Diagnostic Procedures: Comprehensive diagnostic flowcharts, fault code interpretation, and troubleshooting for all major systems. Maintenance Procedures: Scheduled maintenance, routine inspections, fluid changes, filter replacements, and tune-up procedures. Repair Procedures: Detailed step-by-step instructions for engine, transmission, drivetrain, suspension, steering, brakes, HVAC, and electrical system repairs. Body And Trim Repair: Panel replacement, door repairs, interior trim removal/installation, and glass replacement guidance. Wiring Diagrams: Complete electrical schematics for all vehicle systems, including power distribution, grounds, and signal paths. Page Count Estimated Pages: 1000+ Manual Type Type: Service and Repair Workshop Manual Content Focus: Comprehensive repair and maintenance guide for professional mechanics and advanced DIYers. Language Primary Language: English Format Digital Format: PDF (Searchable, Printable) 📖 Manual Coverage Systems Covered Engine: M52TU inline-6, including fuel injection, ignition, cooling, lubrication, and emission control systems. Transmission: 5-speed manual (Getrag 260/6) and 5-speed automatic (Steptronic GM A5S360R/A5S390R) transmission overhaul and service. Drivetrain: Rear-wheel drive system, driveshaft, differential, and axle shaft maintenance and repair. Suspension And Steering: Front struts, rear multi-link suspension, power steering system, wheel alignment specifications, and component replacement. Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control) system components and servicing. Electrical System: Battery, charging system, starter motor, lighting, horn, wipers, power windows, central locking, and interior electronics. Climate Control HVAC: Air conditioning system service, heater core, blower motor, and climate control unit diagnostics. Body And Chassis: Frame, body panels, doors, hood, trunk, bumpers, and convertible top mechanisms (if applicable). Procedures Included Engine Overhaul: Complete engine disassembly, inspection, component replacement (pistons, rings, bearings, valves), and reassembly procedures. Transmission Rebuild: Detailed steps for automatic and manual transmission disassembly, parts replacement, torque specifications, and reassembly. Brake System Overhaul: Brake pad and rotor replacement, caliper service, brake line bleeding, and ABS/DSC component diagnostics. Suspension Component Replacement: Strut replacement, control arm bushings, ball joints, tie rod ends, and sway bar links. Electrical Component Testing And Replacement: Testing alternators, starter motors, sensors, actuators, ECUs, and replacing common electrical modules. Fuel System Diagnostics And Repair: Fuel pump testing, injector cleaning/replacement, fuel pressure regulator service, and EVAP system diagnostics. Cooling System Service: Radiator, thermostat, water pump, and coolant hose replacement and flush procedures. Troubleshooting Guides: Systematic approaches to diagnosing drivability issues, starting problems, electrical faults, and HVAC malfunctions. Technical Depth Depth Level: Factory-level diagnostics and repair procedures. Diagnostic Tools Required: Information on using OBD-II scanners, BMW-specific diagnostic software (e.g., DIS, ISTA/EDIC), and specialized tools. Torque Specifications: Precise torque values for all critical fasteners across all vehicle systems. Special Tools: Identification and usage instructions for BMW-specific tools required for certain repair procedures. 📊 Manual Specifications File Format Searchability: Fully searchable text within PDF for quick access to specific information. Print Quality Resolution: High-resolution images and diagrams for clarity. Binding Type Format: Digital (PDF) Paper Type Format: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Code: M52TU B25 Engine Type: Naturally Aspirated Inline-6 Cylinder, DOHC (Double Overhead Camshaft), 24 Valves. Displacement: 2494 cc (2.5 Liters) Performance Horsepower: 168 hp @ 5500 rpm Torque: 181 lb-ft @ 3500 rpm Fuel System Fuel Delivery: Electronic Multi-Point Fuel Injection (Bosch Motronic ME 2.1/2.3) Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Engine Features Vanos: Double VANOS (Variable Valve Timing) on intake and exhaust camshafts. 🔧 Transmission Standard Transmission Type: 5-Speed Manual (Getrag 260/6) Optional Transmission Type: 5-Speed Automatic with Steptronic (GM A5S360R/A5S390R) Features Clutch Type: Hydraulically Actuated Single Dry Plate (Manual Transmission) Gear Ratios Manual: 1st: 4.235, 2nd: 2.526, 3rd: 1.672, 4th: 1.218, 5th: 1.000, Reverse: 3.725 Gear Ratios Automatic: 1st: 3.23, 2nd: 2.13, 3rd: 1.41, 4th: 1.00, 5th: 0.74, Reverse: 2.80 Fluid Specifications Manual Transmission Fluid: BMW MTF-LT-1 or equivalent (e.g., Castrol Syntrans B 75W-80) Automatic Transmission Fluid: BMW ATF LT-3 (Shell M-1375.4) or equivalent. 📐 Dimensions Exterior Wheelbase: 107.3 inches (2725 mm) Length: 177.4 inches (4506 mm) Width: 68.9 inches (1750 mm) Height: 55.9 inches (1420 mm) Weights Curb Weight: Approximately 3300-3450 lbs (1497-1565 kg), depending on transmission and options. Wheels And Tires Wheel Bolt Pattern: 5 x 120 mm Standard Tire Size: 205/55R16 (often on 7Jx16 wheels) 🛡️ Safety Features Ratings NHTSA Frontal Impact: 4-star driver, 5-star passenger (for E46 generation, specific 323i rating may vary but generally strong). Active Features Traction Control: Automatic Stability Control (ASC+T) often standard or optional. Braking System: Anti-lock Braking System (ABS) standard. Passive Features Airbags: Front driver and passenger airbags, optional side-impact airbags. Body Structure: Reinforced...
BMW MTF-LT-1 or equivalent (e.g., Castrol Syntrans B 75W-80)
Automatic Transmission Fluid:
BMW ATF LT-3 (Shell M-1375.4) or equivalent.
📐 Dimensions
Exterior
Wheelbase:
107.3 inches (2725 mm)
Length:
177.4 inches (4506 mm)
Width:
68.9 inches (1750 mm)
Height:
55.9 inches (1420 mm)
Weights
Curb Weight:
Approximately 3300-3450 lbs (1497-1565 kg), depending on transmission and options.
Wheels And Tires
Wheel Bolt Pattern:
5 x 120 mm
Standard Tire Size:
205/55R16 (often on 7Jx16 wheels)
🛡️ Safety Features
Ratings
NHTSA Frontal Impact:
4-star driver, 5-star passenger (for E46 generation, specific 323i rating may vary but generally strong).
Active Features
Traction Control:
Automatic Stability Control (ASC+T) often standard or optional.
Braking System:
Anti-lock Braking System (ABS) standard.
Passive Features
Airbags:
Front driver and passenger airbags, optional side-impact airbags.
Body Structure:
Reinforced safety cage and crumple zones.
💡 Technology Features
Infotainment
Head Unit:
BMW Business CD or Professional RDS CD players; optional navigation systems available.
Speaker System:
Standard 6-speaker system; Hi-Fi sound system with amplifier optional.
Driver Assistance
Stability Control:
ASC+T (Automatic Stability Control plus Traction) available.
Connectivity
Phone Integration:
Optional BMW Mobile phone preparation with Bluetooth (later models) or cradle systems.
🔧 Maintenance
Service Intervals
Oil Change:
Every 7,500-10,000 miles or annually, utilizing BMW's Condition Based Service (CBS) system for specific recommendations.
Spark Plugs:
Typically every 60,000 miles (recommendation varies by plug type).
Coolant Flush:
Every 2-4 years or 30,000-60,000 miles.
Brake Fluid Flush:
Every 2 years.
Fluid Specifications
Engine Oil:
SAE 5W-30 or 5W-40 Synthetic, meeting BMW Longlife-01 (LL-01) or Longlife-98 (LL-98) specifications.
Coolant:
BMW Blue Antifreeze/Coolant (G48) mixed 50/50 with distilled water.
Known Issues
Cooling System:
Plastic expansion tanks are prone to cracking; water pump and thermostat failures are also common.
Oil Leaks:
Valve cover gasket, oil filter housing gasket, and oil pan gasket are common leak points.
Suspension:
Worn control arm bushings, ball joints, and rear shock mounts can lead to steering wander and clunks.
Electrical Items:
Window regulators, ABS sensors, and crankcase ventilation (CCV) system can fail.
📚 Vehicle History
Brand Heritage
Brand Focus:
BMW's reputation for building 'The Ultimate Driving Machine'.
Model Evolution
E46 Generation:
The E46 replaced the E36 3 Series and introduced a more refined chassis, improved aerodynamics, and updated technology.
323I Positioning:
Positioned as an entry-level model within the E46 lineup, offering a balance of performance and luxury before the 325i.
Production
Production Years:
E46 generation: 1998-2006. Specific 323i model production: 1998-2000 in most markets.
🏆 Awards & Recognition
Recognitions
Car And Driver 10Best:
The E46 generation, including models like the 323i and its successors, was frequently recognized on Car and Driver's 10Best lists for its driving dynamics.
Ratings
Consumer Reports:
While specific model year ratings vary, the E46 generation generally received good marks for performance and reliability, with some common issues noted that this manual addresses.