Segment:
Compact Executive Sedan/Coupe/Wagon
Brand Perception:
Known for sporty handling, refined interiors, and powerful engines.
Key Competitors:
Mercedes-Benz C-Class, Audi A4, Lexus IS, Infiniti G35.
Vehicle Highlights:
Rear-wheel drive bias, excellent chassis dynamics, powerful inline-six engines, premium interior appointments, driver-focused cockpit.
Benefit To Owner:
Empowers owners and independent technicians with the knowledge to perform maintenance, repairs, and diagnostics, saving time and money compared to dealership service.
Engine:
Complete engine overhaul, diagnosis, tuning, cooling system, lubrication system, fuel injection (DME), ignition system, emissions control.
Transmission:
Manual (Getrag 250G) and Automatic (GM A5S360R/A5S390R) transmission diagnosis, repair, fluid changes, clutch service, torque converter service.
Drivetrain:
Rear-wheel drive system, driveshaft, differential, axle shafts, universal joints.
Suspension:
Front suspension (MacPherson struts, control arms, anti-roll bar), rear suspension (multi-link), shock absorbers, springs, bushings, alignment procedures.
Steering:
Power steering system, steering rack, tie rods, steering column.
Brakes:
Front and rear disc brakes, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake fluid, caliper service, rotor replacement, pad replacement, bleeding procedures.
Electrical:
Battery, charging system, starter motor, alternator, lighting system (headlights, taillights, interior), fuse box, relays, wiring diagrams, power windows, locks, mirrors, OBC (On-Board Computer).
Comfort Systems:
HVAC (Heating, Ventilation, and Air Conditioning) system, climate control, blower motor, evaporator, condenser, refrigerant handling.
Body And Chassis:
Body panel repair, door mechanisms, hood, trunk, bumpers, glass replacement, interior trim, chassis structural information.
Diagnostics:
OBD-II (On-Board Diagnostics) system, trouble codes (DTCs), diagnostic procedures, use of diagnostic tools (e.g., INPA, DIS).
Maintenance:
Scheduled maintenance (oil changes, filter replacements, spark plugs), fluid checks and top-offs, belt inspection and replacement, brake pad/rotor replacement, tire rotation.
Repair:
Step-by-step instructions for component replacement, component overhaul, system troubleshooting, and diagnostic procedures.
Troubleshooting:
Diagnostic trees, symptom-based troubleshooting guides, identification of common faults and their solutions.
Technical Specifications:
Torque specifications, clearances, fluid types and capacities, electrical resistance values, vacuum and pressure readings.
Depth:
Comprehensive. Covers everything from basic fluid checks to complete engine and transmission rebuilds, including advanced electrical diagnostics and bodywork.
Diagnostics Level:
Advanced, including understanding and interpreting diagnostic trouble codes (DTCs) and utilizing specialized BMW diagnostic tools.
Transmission Type:
5-Speed Manual (Getrag 250G)
Transmission Type:
5-Speed Automatic (GM A5S360R/A5S390R)
Automatic Features:
Steptronic manual shifting mode.
Manual Transmission Fluid:
BMW MTF LT-2 (or equivalent with correct viscosity, e.g., Pentosin MTF 2)
Automatic Transmission Fluid:
BMW ATF LT-3 (or equivalent like Dexron III/VI, Pentosin ATF1)
Oil Change Interval:
Typically every 7,500 - 10,000 miles or annually, as indicated by the vehicle's Condition Based Service (CBS) system or owner's manual. Manual provides details on oil type and filter part numbers.
Spark Plug Replacement:
Around 60,000 miles (for original spark plugs, e.g., Bosch FGR7KQP0)
Coolant Flush:
Every 2-3 years or approximately 30,000-50,000 miles. Manual specifies BMW Blue Coolant.
Engine Oil Capacity:
Approx. 6.5 quarts (6.0 liters) with filter change.
Engine Oil Type:
Synthetic 5W-30 or 5W-40 (e.g., Castrol Syntec, Mobil 1, or BMW Longlife-01 approved oils).
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 formulation) or equivalent ethylene glycol-based coolant.
Brake Fluid Type:
DOT 4 (BMW High Performance DOT 4)
Common Problems:
Cooling system leaks (water pump, thermostat housing, expansion tank), VANOS solenoid issues, oil pan gasket leaks, rear main seal leaks, ABS/DSC sensor failures, window regulator failures, ignition coil failures (older style).
Manual Assistance For Issues:
The manual provides detailed diagnostic procedures and replacement guides for all these common issues.
Bmw Philosophy:
Ultimate Driving Machine, focus on performance, handling, and driver engagement.
E46 Introduction:
Introduced in 1998 (globally) as a successor to the E36, the E46 represented a significant leap in refinement, technology, and chassis design.
328I Positioning:
The 328i was positioned as the mid-range performance model in the E46 lineup during these years, offering a strong balance of power and efficiency powered by the robust M52 engine.
Manufacturing Locations:
Germany (Munich, Dingolfing), Austria (Graz - Magna Steyr), South Africa.
