Vehicle Market Segment:
Compact Executive Car / Sport Sedan
Key Selling Points For E46:
Driving dynamics, build quality, performance, premium feel, and BMW's reputation for engineering.
Primary Competitors 1999:
Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G20/G35 (later).
E46 Platform Innovations:
Improved chassis rigidity, advanced suspension geometry, more powerful and efficient engines compared to E36, refined interior, optional Steptronic automatic transmission.
Value For Owner:
Empowers owners to perform maintenance, diagnose issues, and undertake repairs, saving on dealership labor costs and extending vehicle life.
Value For Independent Shops:
Essential tool for independent mechanics specializing in BMWs, providing accurate data and procedures for efficient and correct repairs.
Engine Systems:
Engine mechanicals (M52TU, M54 variants), fuel delivery, ignition, cooling, exhaust, emissions control, lubrication, engine management systems (DME).
Transmission Systems:
Manual (Getrag 5-speed/6-speed), Automatic (GM 5-speed Steptronic) transmission service, repair, diagnosis, fluid specifications, and component overhauls.
Drivetrain Systems:
Clutch, driveshaft, differential, rear axle, wheel bearings, CV joints.
Suspension Steering Systems:
Front and rear suspension components, struts, shocks, springs, control arms, bushings, steering rack, power steering system, wheel alignment specifications.
Brake Systems:
Front and rear brake systems (disc brakes), ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake fluid specifications, caliper and rotor replacement, bleeding procedures.
Electrical Electronics Systems:
12V electrical system, battery, alternator, starter motor, lighting systems (headlights, taillights, interior), fuses, relays, wiring diagrams, body control module (BCM), comfort systems, diagnostics.
Body Interior Exterior:
Body panel removal/installation, door mechanisms, interior trim, seats, dashboard, sunroof, HVAC system (heating, ventilation, air conditioning), climate control.
Maintenance Procedures:
Routine maintenance tasks, oil changes, filter replacements (oil, air, fuel, cabin), spark plug replacement, coolant flush, brake fluid replacement, belt inspection and replacement.
Repair Procedures:
Step-by-step instructions for engine component repair, transmission overhaul, suspension and brake component replacement, electrical system troubleshooting, bodywork repairs.
Troubleshooting Diagnostics:
Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides, diagnostic procedures for various systems, using BMW diagnostic tools (e.g., DIS).
Technical Data Specifications:
Torque specifications, clearances, fluid capacities, electrical values, diagnostic parameters.
Depth Of Information:
Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds. Includes detailed diagnostic procedures and wiring schematics.
PDF Quality:
High-resolution, searchable PDF with clear diagrams and text. Likely to be 'print-ready'.
Diagram Clarity:
Detailed technical illustrations, exploded views, and wiring schematics designed for clarity in repair and diagnostic processes.
Binding Method For Physical Version:
Typically professional, lay-flat binding for workshop durability if a printed version were available. PDF implies digital convenience.
Paper Type For Physical Version:
Durable, high-quality paper stock to withstand workshop environments.
Engine Code Example 1:
M52TU (e.g., 320i, 323i, 328i)
Engine Code Example 2:
M54 (introduced later in the E46 lifecycle, might be covered if the manual is comprehensive for the year)
Displacement Options:
Likely includes 2.0L, 2.5L, 2.8L inline-six engines, and potentially 4-cylinder variants depending on market (e.g., 318i with M43TU).
Horsepower Range:
Approximately 150 hp to 200+ hp for 1999 models, depending on specific engine variant.
Torque Range:
Approximately 190 Nm to 280+ Nm, depending on specific engine variant.
Fuel Injection Type:
Electronic Multi-Point Fuel Injection (MPI) managed by Bosch Motronic DME.
Dme Control:
Detailed information on DME operation, sensor inputs, actuator outputs, and diagnostic capabilities.
Coolant Type:
BMW Blue or Green coolant (ethylene glycol based), specific dilution ratios and capacities.
Standard Transmission Type:
5-Speed Manual Transmission (Getrag 260/6 or similar)
Optional Transmission Type:
5-Speed Automatic Transmission with Steptronic (GM 5L40-E)
Steptronic Functionality:
Manual gear selection mode for performance driving.
Manual Transmission Fluid:
API GL-4 or GL-5 spec synthetic gear oil, e.g., Red Line MTL or BMW's specified fluid (e.g., 83 22 2 339 006).
Automatic Transmission Fluid:
ESSO LT 71141 (or equivalent specification, e.g., Pentosin ATF 1).
Sedan Length:
Approx. 4,471 mm (176.0 in)
Sedan Width:
Approx. 1,739 mm (68.5 in)
Sedan Height:
Approx. 1,412 mm (55.6 in)
Wheelbase Length:
Approx. 2,725 mm (107.3 in)
Curb Weight Range:
Approx. 1,350 kg - 1,500 kg (2976 lbs - 3307 lbs) depending on engine and equipment.
Trunk Volume Sedan:
Approx. 440 liters (15.5 cu ft)
NHTSA Front Impact Rating:
Generally good for its era, often receiving 4-star ratings in frontal impacts.
IIHS Frontal Offset Rating:
Likely rated 'Good' or 'Acceptable' in IIHS frontal offset tests.
Standard Safety Features:
ABS (Anti-lock Braking System), front airbags.
Optional Safety Features:
Traction Control System (ASC+T), Dynamic Stability Control (DSC), side airbags, Xenon headlights.
Body Structure:
Reinforced passenger cell, crumple zones designed for energy absorption.
Oil Change Interval Typical:
BMW's Condition Based Service (CBS) system, typically around 15,000 miles or 12 months, or as indicated by the service indicator.
Major Service Items:
Spark plugs, coolant, brake fluid, differential fluid, transmission fluid replacement at specified intervals (e.g., 60,000-100,000 miles for plugs, 2 years for brake fluid).
Engine Oil Specification:
Synthetic engine oil, e.g., BMW Longlife-01 (LL-01) or LL-98, viscosity like 0W-40, 5W-40, 5W-30, depending on temperature and specific engine requirements.
Engine Oil Capacity:
Approx. 6.5 - 7.5 liters (depending on engine variant).
Power Steering Fluid:
CHF 11S (Pentosin) or equivalent, not ATF.
Cooling System Weaknesses:
Plastic coolant expansion tank cracking, water pump failure (plastic impeller degradation), thermostat housing leaks, radiator leaks.
Suspension Component Wear:
Front control arm bushings (eccentric bushings), rear shock mounts, sway bar links.
Engine Specific Issues:
M54: Vanos seals degradation, CCV system (crankcase ventilation) failure leading to oil leaks and rough running. M52TU: Valve cover gasket leaks.
Electrical Issues:
ABS/DSC sensor failures, VANOS solenoids, blower motor resistor failure, fuel pump failure.
Recommended Actions:
Regular inspection of rubber components, cooling system flushes, timely replacement of wear items, monitoring for oil leaks.
Bmw Philosophy:
Sheer Driving Pleasure - emphasis on performance, handling, and driver engagement.
E46 Predecessor:
BMW 3 Series E36.
E46 Successor:
BMW 3 Series E90 (sedan), E91 (touring), E92 (coupe), E93 (convertible).
Production Start Year E46:
1998
Production End Year E46:
2006 (for sedans/tourings), later for coupes/convertibles.
Manufacturing Plants:
Germany (Dingolfing, Munich), South Africa (Rosslyn), Austria (Graz - Magna Steyr for coupes/convertibles).