Segment:
Compact Executive Sedan/Wagon (E-segment)
Rivals:
Mercedes-Benz C-Class, Audi A4, Lexus IS, Infiniti G35
Performance Orientation:
Known for sporty handling, engaging driving dynamics, and refined interiors
Drivetrain:
xDrive all-wheel drive system providing enhanced traction and stability
Engine:
M54B30 Engine, engine mechanical, engine control systems (DME), ignition, fuel injection, exhaust, cooling system, lubrication system, emissions control
Transmission:
GM A5S360R Automatic Transmission, ZF S5-31 Manual Transmission, clutch, driveline, xDrive all-wheel drive system
Brakes:
Hydraulic system, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake pad and rotor replacement, caliper service, parking brake
Suspension:
Front MacPherson strut, rear multi-link suspension, shock absorbers, springs, control arms, bushings, alignment specifications
Steering:
Power steering system, steering rack, tie rods, steering column
Electrical:
Battery, alternator, starter, lighting systems, wiring diagrams, fuses, relays, body control module (BCM), instrument cluster, power accessories
HVAC:
Heating, ventilation, and air conditioning (HVAC) system, blower motor, refrigerant system, climate control unit
Body:
Exterior panels, doors, hood, trunk, bumpers, glass, interior trim, seats, airbags
Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, belt inspection and replacement, brake service, tire rotation
Repair:
Engine component replacement, transmission rebuilds, suspension component replacement, brake system repair, electrical system diagnostics and repair, HVAC system repair
Diagnostics:
Troubleshooting common problems, diagnostic trouble codes (DTCs), sensor testing, module testing
Specifications:
Torque specifications, fluid capacities, diagnostic parameters, alignment settings, wiring diagrams
Depth:
Comprehensive, covering routine maintenance to major overhauls and detailed diagnostics
Engine Type:
3.0L Inline-6 Cylinder, DOHC, 24 Valves
Horsepower:
225 hp @ 6000 rpm
Torque:
214 lb-ft @ 3500 rpm
Injection Type:
Multi-point Fuel Injection (MPI), Electronic Throttle Control (ETC)
Recommended Fuel:
Premium Unleaded Gasoline (91 AKI or higher)
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based)
Oil Type:
SAE 5W-30 Synthetic (BMW Longlife-01 or equivalent)
Capacity:
6.5 quarts (6.2 liters) with filter
NHTSA Front Impact:
5-Star (for models tested)
Electronic Stability Control:
Standard (DSC - Dynamic Stability Control)
Traction Control:
Standard (ASR - Automatic Stability Control)
Airbags:
Frontal airbags, front side-impact airbags, optional head protection airbags
Seatbelts:
3-point inertia-reel seatbelts with pretensioners and force limiters
Oil Change:
Variable service interval (Condition Based Service - CBS), typically 10,000-15,000 miles or 12-24 months
Inspect Brakes:
Every 15,000 miles or annually
Replace Cabin Filter:
Every 15,000-30,000 miles or annually
Replace Air Filter:
Every 30,000 miles
Replace Spark Plugs:
Every 60,000 miles (NGK BKR6EQUP or equivalent recommended)
Inspect Coolant:
Every 30,000 miles or 24 months
Brake Fluid:
DOT 4 (BMW High Performance Brake Fluid or equivalent)
Power Steering Fluid:
Pentosin CHF 11S or equivalent hydraulic fluid
Differential Fluid:
SAE 75W-90 Synthetic Gear Oil (API GL-5)
Cooling System:
Plastic coolant expansion tanks can crack; water pumps and thermostats can fail prematurely.
Suspension:
Control arm bushings (FCABs), rear subframe bushings, and shock mounts are common wear items.
Oil Leaks:
Valve cover gasket, oil pan gasket, and eccentric shaft sensor seals are prone to leaking.
Electrical:
CCFL angel eye rings (on facelift models) can fail; LCM (Light Module Control) can fail, causing lighting issues.
ABS Asc Sensor:
Wheel speed sensors (ABS/ASC sensors) can fail, leading to ABS and traction control warnings.
Manufacturer:
Bayerische Motoren Werke AG (BMW), founded in 1916
E46 Generation:
The E46 generation (1998-2006) succeeded the E36 and introduced significant advancements in design, engineering, and technology. The 330xi variant joined the lineup later in the generation, offering a more powerful engine and all-wheel drive.
Manufacturing Locations:
Primarily Dingolfing, Germany; also Spartanburg, South Carolina, USA for certain markets.