🏷️ Basic Information Identification Make: BMW Model: 3-series Chassis Code: E46 Model Year Coverage: 1999 Generation Generation Name: Fourth Generation E46 Generation Introduction Year: 1998 Codes Engine Codes Covered: M52TU (Inline-6), M43 (Inline-4) 👋 Introduction Market Position Vehicle Segment: Compact Executive Sedan/Coupe/Convertible/Wagon Bmw Philosophy: Represents BMW's 'Ultimate Driving Machine' philosophy with a focus on performance, handling, and driver engagement. Competitive Analysis Key Competitors: Mercedes-Benz C-Class (W202), Audi A4 (B5), Lexus IS200, Alfa Romeo 156. Key Features Driver Dynamics: Renowned for its balanced chassis, rear-wheel-drive platform, and precise steering. Build Quality: High levels of perceived quality, premium interior materials, and robust engineering. Manual Value Proposition: Empowers owners and independent technicians with factory-level diagnostic and repair knowledge. 📋 Manual Details Coverage Areas Models Covered: All E46 3-series body styles and engine variants for 1999 (e.g., 323i, 328i, 318i). Repair Scope: Comprehensive A-Z repair and maintenance procedures, covering all systems and components. Page Count Estimated Page Count: 1000+ Manual Type Manual Classification: Factory Authorized Service and Repair Manual Language Language: English Format Format Type: Digital (PDF) / Printed (typically spiral-bound or perfect-bound) 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanicals (block, head, pistons, crankshaft), fuel injection, ignition, cooling, lubrication, emissions control (DME). Transmission Systems: Manual transmission (Getrag S5D series), Automatic transmission (GM A5S series), clutch, driveshafts, differentials. Chassis Systems: Suspension (front strut assembly, rear multi-link), steering (hydraulic power steering), brakes (ABS, DSC, brake components, fluid), wheels and tires. Electrical Systems: Battery, charging system, starter, lighting, instrumentation, body electronics (BCM), comfort systems, diagnosis (OBD-II). Body Systems: Body structure, exterior panels, doors, glass, interior trim, HVAC system, safety restraints (airbags). Procedures Included Maintenance Procedures: Oil changes, filter replacements (oil, air, cabin), spark plug replacement, coolant flush, brake fluid flush, interval checks. Diagnostic Procedures: Troubleshooting guides, fault code interpretation (DTCs), symptom-based diagnosis, wiring diagrams for electrical systems. Repair Procedures: Engine component replacement (e.g., water pump, thermostat, VANOS), transmission overhaul, brake caliper replacement, suspension component renewal, electrical component testing and replacement. Special Procedures: Engine timing adjustments, fuel system component testing, advanced electrical diagnostics, chassis alignment procedures. Technical Depth Depth Of Coverage: Detailed technical specifications, torque values, clearances, diagnostic flowcharts, step-by-step repair instructions, and exploded views. Diagnostic Tools Referenced: BMW proprietary diagnostic tools (e.g., GT1, DIS) and general OBD-II scanners. 📊 Manual Specifications File Format Digital Format: Searchable PDF with hyperlinked sections for easy navigation. Print Quality Print Clarity: High-resolution diagrams, clear text, and accurate illustrations suitable for printing. Binding Type Physical Binding: Durable binding (e.g., spiral-bound, perfect-bound) designed for workshop use. Paper Type Physical Paper: Heavy-duty, laminated pages to resist grease and dirt in a workshop environment. ⚙️ Engine Specifications Primary Engine Engine Variant 1: M52TU (2.5L/2.8L Inline-6) Engine Variant 2: M43 (1.9L Inline-4 - primarily 318i) Performance M52Tu Displacement 2.5L: 2494 cc (approx. 152 cu in) Horsepower 2.5L: 170 hp @ 5500 rpm (323i) Torque 2.5L: 181 lb-ft @ 3500 rpm (323i) Displacement 2.8L: 2793 cc (approx. 170 cu in) Horsepower 2.8L: 193 hp @ 5300 rpm (328i) Torque 2.8L: 207 lb-ft @ 3500 rpm (328i) Performance M43 Displacement 1.9L: 1895 cc (approx. 116 cu in) Horsepower 1.9L: 118 hp @ 5500 rpm (318i) Torque 1.9L: 133 lb-ft @ 3250 rpm (318i) Fuel System Fuel Delivery: Electronic fuel injection (EFI), Bosch Motronic ME 7.2 / DME 7.3 Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Features Vanos: Double VANOS (Variable Valve Timing) on M52TU engines. 🔧 Transmission Standard Manual Transmission Standard: 5-speed Getrag manual transmission (e.g., S5D 250G) Optional Automatic Transmission Optional: 5-speed ZF Steptronic automatic transmission (e.g., A5S 325Z) Features Traction Control: Available ASC+T (Automatic Stability Control + Traction) or DSC (Dynamic Stability Control) on select models. Fluid Specs Manual Transmission Fluid: BMW MTF LT-1 or LT-2 (equivalent to SAE 75W-90 GL-4/GL-5) Automatic Transmission Fluid: BMW ATF LT-3 (Dexron III equivalent) - Critical to use correct fluid type. 📐 Dimensions Exterior Sedan Wheelbase: 2760 mm (108.7 in) Length: 4471 mm (176.0 in) Width: 1739 mm (68.5 in) Height: 1371 mm (53.9 in) Weights Sedan Curb Weight Approx: 1450 - 1550 kg (3197 - 3417 lbs) Gross Vehicle Weight Rating: Varies by model, consult manual for specifics. Wheel Bolt Pattern: 5x120 mm Center Bore: 72.5 mm 🛡️ Safety Features Ratings NHTSA Front Impact: 4/5 stars (driver/passenger) IIHS Side Impact: Acceptable (for models tested prior to significant redesign) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Optional ASC+T or DSC. Passive Features Airbags: Front driver and passenger airbags, optional side airbags. Seatbelts: 3-point inertia-reel seatbelts with pretensioners. 💡 Technology Features Infotainment Audio System: BMW Professional CD/Radio, optional Harman Kardon sound system. Navigation: Optional BMW Business or Professional Navigation System with CRT screen and CD-ROM based maps. Driver Assistance Stability Control: ASC+T or DSC available, improving stability and traction. Cruise Control: Standard on most models. Connectivity Telematics: Optional BMW Assist telematics system...