🏷️ Basic Information Identification Make: BMW Model: 325i Model Variant: 325 Year: 1999 Chassis Code: E46 Codes Engine Code: M52TU B25 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe Target Audience: Enthusiast owners, independent repair shops, DIY mechanics Competitive Analysis Competitors 1999: Mercedes-Benz C-Class (W202), Audi A4 (B5), Lexus IS200/300, Alfa Romeo 155/156 Key Features Driving Dynamics: Renowned BMW handling, rear-wheel-drive architecture, balanced chassis Engine Smoothness: Inline-six engine known for its refinement and power delivery Build Quality: Premium interior materials and solid construction typical of BMW Design: Classic BMW 'Flame Surfacing' design language, elegant and sporty aesthetics 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Language: English Format: Downloadable PDF Completeness: Complete Official Factory Documentation Page Count Page Count Estimated: Hundreds of pages (printable) 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, repair, overhaul, M52TU B25 engine specifics Engine Management: DME control unit, sensors, actuators, ignition system, fuel injection Transmission: Automatic (Steptronic) and Manual transmission repair, diagnostics, fluid service Drivetrain: Differential, driveshafts, wheel bearings, limited-slip differential (if equipped) Suspension: Front struts, rear multi-link suspension, bushings, shock absorbers, alignment procedures Steering: Power steering system, steering rack, tie rods, steering column Brakes: ABS system, brake calipers, rotors, pads, brake fluid flushing, parking brake Electrical System: Wiring diagrams, fuse box locations, component testing, battery, alternator, starter Bodywork: Body panel removal/installation, doors, hood, trunk, bumpers, glass replacement HVAC: Climate control system, A/C compressor, blower motor, evaporator, heater core, refrigerant handling Interior: Seats, dashboard, door panels, headliner, trim components Fuel System: Fuel pump, fuel injectors, fuel filter, fuel tank Cooling System: Radiator, water pump, thermostat, coolant hoses, expansion tank Exhaust System: Exhaust manifolds, catalytic converter, muffler, exhaust pipes Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks Troubleshooting: Diagnostic charts, symptom-based troubleshooting, fault code interpretation Repair: Step-by-step repair instructions for all major components Diagnostics: Procedures for using diagnostic tools and interpreting data Rebuilding: Detailed procedures for engine and transmission rebuilding Installation: Installation of new or replacement parts Specifications: Torque specifications, clearances, measurements Technical Depth Depth: Comprehensive coverage from basic maintenance to complete engine rebuilds and electrical system diagnostics. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable, allowing for quick location of information Print Quality Printability: Designed for printing, either in full or by specific sections Binding Type Binding Type Digital: N/A (Digital Format) Paper Type Paper Type Digital: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: M52TU B25 - Inline 6-cylinder, Double VANOS Displacement: 2.5 Liters (2494 cc) Bore X Stroke: 84.0 mm x 75.0 mm Compression Ratio: 10.2:1 Performance Horsepower: 168 hp @ 5500 rpm Torque: 245 Nm (181 lb-ft) @ 3500 rpm Fuel System Fuel Delivery: Multi-point fuel injection (Bosch Motronic 5.2.1) Fuel Type: Unleaded gasoline, 91-93 octane recommended Engine Management Ignition Type: Distributorless ignition system (DIS) with individual coil packs Timing Timing Belt Chain: Timing chain 🔧 Transmission Standard Transmission Type Standard: 5-speed Manual Transmission (Getrag 250) Optional Transmission Type Optional: 5-speed Automatic Transmission with Steptronic functionality (GM A5S360R/Z) Features Steptronic: Allows manual selection of gears via shifter Fluid Specs Manual Transmission Fluid: BMW MTF LT-2 or equivalent (check manual for specific part number) Automatic Transmission Fluid: BMW ATF LT-3 or equivalent (check manual for specific part number) 📐 Dimensions Exterior Length: 4,471 mm (176.0 inches) Width: 1,739 mm (68.5 inches) Height: 1,392 mm (54.8 inches) Wheelbase: 2,725 mm (107.3 inches) Weights Curb Weight Manual: Approximately 1,450 kg (3,197 lbs) Curb Weight Automatic: Approximately 1,480 kg (3,263 lbs) 🛡️ Safety Features Ratings NHTSA Front Impact: Not rated or not available for this model year and specific trim. IIHS Side Impact: Not rated or not available for this model year and specific trim. Active Features ABS: Standard Anti-lock Braking System Traction Control: Optional or standard depending on market/trim (ASC+T - Automatic Stability Control + Traction) Passive Features Airbags: Driver and front passenger airbags Seatbelts: Three-point inertia-reel seatbelts with pretensioners Body Structure: Reinforced safety cell with crumple zones 💡 Technology Features Infotainment Head Unit: Factory BMW Business CD or Professional CD radio with cassette player, optional navigation system. Speakers: Standard speaker system, optional premium Hi-Fi system. Driver Assistance Cruise Control: Standard electronic cruise control. Parking Sensors: Optional rear park distance control (PDC). Connectivity Phone Integration: Optional Bluetooth preparation or factory installed phone cradle. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500 - 15,000 miles or 12-24 months (depending on driving conditions and oil used; consult manual for specific CBS recommendations). Air Filter Replacement: Every 30,000 - 60,000 miles or as needed. Spark Plug Replacement: Around 60,000 - 100,000 miles (depending on plug type; iridium plugs offer longer life). Coolant Flush: Every 30,000 - 60,000 miles or 2-4 years. Brake Fluid Flush: Every 2 years, regardless of mileage. Fluid Specifications Engine Oil Type: SAE 5W-30 or 5W-40 Synthetic (BMW LL-01 approved is ideal...