Segment:
Compact Executive Sedan
Bmw Positioning:
Represents BMW's entry-level executive sedan offering, known for its engaging driving dynamics and premium build quality.
Key Competitors:
Mercedes-Benz C-Class (W203), Audi A4 (B6), Lexus IS (XE10), Infiniti G35
Driving Dynamics:
Renowned for its balanced chassis, rear-wheel-drive platform, and communicative steering.
Engine Performance:
Smooth and torquey inline-six engine providing a refined power delivery.
Build Quality:
Typical BMW premium interior materials and solid construction.
Engine Mechanical:
Engine overhaul, cylinder head, pistons, crankshaft, camshafts, timing, lubrication system, cooling system
Engine Management:
Fuel injection system (MS43/MS45 DME), ignition system, emissions control, sensor diagnostics, ECU testing
Transmission Manual:
Clutch, gearbox overhaul, shift mechanism, driveshafts
Transmission Automatic:
GM A5S360R/A5S390R transmission overhaul, valve body, torque converter, electronic control
Drivetrain:
Differential, rear axle, limited-slip differential (if equipped)
Suspension:
Front struts, rear multi-link suspension, control arms, bushings, springs, shock absorbers
Brakes:
Front and rear disc brakes (vented front), ABS system, DSC (Dynamic Stability Control), brake hydraulics, bleeding procedures
Steering:
Power steering system, steering rack, steering column, alignment specifications
Electrical System:
Battery, alternator, starter, lighting, fuses, relays, wiring diagrams, power distribution
Body And Chassis:
Body panels, doors, windows, sunroof, interior trim, bumpers, underbody protection
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system, climate control, refrigerant service
Safety Systems:
Airbag system (SRS), seat belt pre-tensioners, diagnostic codes
Preventative Maintenance:
Oil change intervals, fluid checks and replacements, filter replacement, spark plug replacement
Troubleshooting:
Diagnostic procedures for common faults, symptom-based troubleshooting guides, error code interpretation
Repair And Rebuild:
Detailed step-by-step instructions for component removal, installation, and overhaul
Diagnostics:
Information on using diagnostic tools (e.g., INPA, DIS) and interpreting sensor data
Electrical Repairs:
Component testing, wiring harness repair, connector diagnosis
Depth Of Coverage:
Comprehensive, suitable for professional mechanics and advanced DIY enthusiasts
Diagnostic Detail:
Includes specific diagnostic trouble codes (DTCs), circuit descriptions, and component testing procedures
Torque Specifications:
Detailed torque values for all critical fasteners
Alignment Specs:
Front and rear wheel alignment specifications
Schematics Included:
Extensive electrical wiring diagrams for various systems
NHTSA Front Impact:
4 Stars (Driver), 4 Stars (Passenger) - 1999-2000 models, varies by year/testing protocol
IIHS Side Impact:
Good - Models with side airbags
ABS:
Standard Anti-lock Braking System
Traction Control:
Standard ASC+T (Automatic Stability Control and Traction)
Stability Control:
Optional DSC (Dynamic Stability Control) on later models
Airbags:
Frontal airbags, optional front side-impact airbags
Seat Belts:
Three-point inertia-reel seatbelts with pretensioners
Oil Change Interval:
Typically every 7,500 to 10,000 miles or annually, depending on driving conditions and oil used (BMW's Condition Based Service system is key)
Coolant Change:
Every 2-4 years or 30,000-60,000 miles
Spark Plug Replacement:
Approximately every 60,000 miles (check specific type, e.g., NGK BKR6EQUP)
Engine Oil Type:
BMW Longlife-01 (LL-01) or LL-98 approved synthetic oil, SAE 5W-30 or 5W-40 recommended
Engine Oil Capacity:
6.5 U.S. quarts (6.2 Liters) with filter
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 formulation) mixed 50/50 with distilled water
Transmission Fluid Manual:
BMW MTF LT-2 or equivalent (e.g., Red Line D4 ATF for some applications, check manual)
Transmission Fluid Automatic:
BMW ATF LT-3 or equivalent (e.g., Pentosin ATF1 or ZF LifeguardFluid 5)
Brake Fluid:
DOT 4 (BMW recommends DOT 4 HP or Super DOT 4)
Cooling System Failure:
Plastic expansion tank and coolant hoses prone to cracking; water pump failure is common.
Oil Leaks:
Valve cover gasket, oil pan gasket, and oil filter housing gasket can leak.
Suspension Wear:
Control arm bushings, sway bar links, and rear shock mounts are common wear items.
Window Regulator Failure:
Plastic components in the window regulator mechanism are prone to breaking.
Ccv System:
Crankcase Ventilation (CCV) system can clog, leading to increased oil consumption and potential seal failure.
ABS Wheel Speed Sensors:
Front ABS wheel speed sensors are known to fail, triggering ABS and brake warning lights.
Bmw Philosophy:
BMW's reputation for engineering excellence, performance, and driver engagement originated in the early 20th century.
E46 Generation:
The E46 generation (1998-2006) succeeded the E36 and is widely regarded as one of BMW's most successful and critically acclaimed generations of the 3 Series.
328I Placement:
The 328i occupied the upper-mid-range of the E46 sedan lineup, offering a potent blend of performance and luxury before the introduction of the 330i.
Production Years E46:
1998-2006 (sedan and wagon), 1999-2006 (coupe and convertible)
Manufacturing Locations:
Primarily Dingolfing, Germany; also assembled in South Africa, Thailand, and Mexico
