Market Segment:
Entry-luxury compact executive sedan
Key Competitors:
Mercedes-Benz C-Class, Audi A4, Lexus IS, Volvo S60
Bmw Philosophy:
Emphasis on driving dynamics ('The Ultimate Driving Machine'), rear-wheel drive platform, and refined engineering.
E46 Generation Attributes:
Considered a high point in BMW design and engineering, known for its balanced chassis, responsive handling, and quality interior.
Diy Support:
Empowers owners to perform maintenance and repairs, saving on dealership costs and increasing vehicle longevity.
Diagnostic Aid:
Provides the detailed technical information needed for accurate diagnosis and effective repair.
Engine:
Detailed diagnosis, repair, and overhaul of the M52TU B28 engine, including cooling system, lubrication system, fuel system, ignition system, emission control system, and engine management.
Transmission:
Coverage for both manual and automatic transmissions, including removal, installation, disassembly, assembly, fluid specifications, and troubleshooting.
Drivetrain:
Detailed information on driveshafts, differential, axles, and wheel bearings.
Suspension:
Front and rear suspension components, including struts, shock absorbers, control arms, bushings, sway bars, and alignment procedures.
Brakes:
Front and rear brake systems (discs and pads), ABS, DSC, brake fluid specifications, bleeding procedures, and component replacement.
Steering:
Power steering system, steering rack, tie rods, and associated components.
Electrical System:
Comprehensive wiring diagrams, fuse box layouts, battery, alternator, starter, lighting system, instrument cluster, and body control modules.
Body And Chassis:
Body panel removal and installation, interior trim, doors, windows, sunroof, and structural components.
Climate Control:
HVAC system, air conditioning, heater core, blower motor, and climate control unit diagnosis and repair.
Comfort And Convenience:
Power windows, power locks, central locking system, seats, and mirrors.
Maintenance:
Scheduled maintenance procedures, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, and inspections.
Repair:
Step-by-step repair instructions for all major components and systems, from minor adjustments to complete component overhauls.
Troubleshooting:
Diagnostic procedures and troubleshooting guides for common problems, fault codes, and symptoms.
Disassembly And Assembly:
Detailed instructions for removing, rebuilding, and reassembling various vehicle components with exploded views.
Technical Specifications:
Torque specifications, clearances, fluid capacities, and electrical specifications.
Depth Of Coverage:
Comprehensive, covering basic maintenance to advanced engine and transmission rebuilds, including diagnostic procedures.
Engine Type:
Inline 6-cylinder, DOHC, 24 valves
Engine Code:
M52TU B28 (Double VANOS)
Displacement:
2.8 Liters (2793 cc)
Horsepower:
193 hp @ 5500 rpm
Torque:
206 lb-ft (279 Nm) @ 3500 rpm
Fuel Delivery:
Multi-point fuel injection (Bosch Motronic ME 7.2)
Fuel Type:
Premium Unleaded Gasoline (91+ octane recommended)
Engine Control Unit:
Bosch Motronic ME 7.2
Cooling Type:
Liquid-cooled, pressurized system
Oil Type Specification:
BMW Longlife-01 (e.g., Castrol Syntec 5W-30 or equivalent)
Standard Transmission:
5-speed Manual (Getrag 250)
Optional Transmission:
5-speed Steptronic Automatic (GM A5S 325Z)
Automatic Transmission Features:
Steptronic manual shifting mode
Manual Transmission Fluid:
API GL-4 or GL-5, SAE 75W-90
Automatic Transmission Fluid:
Dexron III or equivalent
Oil Change Interval:
Typically 10,000-15,000 miles or 1 year, depending on oil type and driving conditions (refer to Condition Based Service - CBS system).
Air Filter Replacement:
Approx. 30,000 miles or as needed based on inspection.
Cabin Air Filter Replacement:
Approx. 15,000 miles or annually.
Spark Plug Replacement:
Approx. 60,000-100,000 miles, depending on plug type (e.g., long-life iridium).
Coolant Flush:
Every 30,000-60,000 miles or as recommended by BMW (typically BMW Blue Coolant).
Engine Oil Capacity:
6.5 liters (approx. 6.9 US quarts) with filter change.
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 standard)
Cooling System Leaks:
Common issues include cracked plastic expansion tanks, leaking hoses, and water pump failures.
Oil Pan Gasket Leaks:
Degradation of the oil pan gasket can lead to oil leaks.
Vibration Issues:
Driveshaft center support bearing, flex disc (guibo), and rear differential mounts can wear out, causing vibrations.
Window Regulator Failure:
Plastic components in the window regulator mechanism are prone to breaking.
ABS Wheel Speed Sensor Failure:
Can cause ABS and DSC warning lights to illuminate.
Bmw Legacy:
Founded in 1916, BMW has a long history of producing high-quality, performance-oriented vehicles, particularly known for its inline-six engines and sporty driving characteristics.
E46 Introduction:
The E46 generation succeeded the E36 3 Series and was produced from 1998 to 2006. It marked a significant evolution in styling, technology, and driving dynamics.
E46 Lifespan:
1998-2006 (Sedan production for North America ended in 2005, but international models continued)
Manufacturing Locations:
Germany (Dingolfing), Austria (Graz), South Africa (Rosslyn)
Sales Volume Significance:
The E46 was a highly successful generation for BMW, contributing significantly to the brand's global sales and reputation.
