Vehicle Class:
Executive Sedan/Wagon (mid-size luxury)
Target Audience:
Luxury car buyers seeking performance, comfort, and advanced technology.
Key Competitors:
Mercedes-Benz E-Class, Audi A6, Lexus GS, Infiniti M.
Drivetrain Advantage:
xDrive all-wheel-drive system provides enhanced traction and stability, especially in adverse weather.
Engine Performance:
Smooth, powerful, and efficient inline-6 engine.
Driving Dynamics:
Renowned BMW 'Ultimate Driving Machine' feel, with balanced chassis and responsive handling.
Luxury Appointments:
High-quality interior materials, sophisticated design, and advanced comfort features.
Engine:
N52B30 (3.0L Naturally Aspirated Inline-6)
Engine Management:
DME (Digital Motor Electronics) control, VANOS, Valvetronic, ignition, fuel injection.
Transmission:
ZF 6HP19 (Automatic Transmission)
Drivetrain:
xDrive All-Wheel Drive system (transfer case, front/rear differentials, drive shafts).
Suspension:
Front: MacPherson struts, multi-link. Rear: Multi-link independent suspension. Adaptive Drive (optional).
Brakes:
Front: Ventilated discs, fixed calipers. Rear: Ventilated discs, floating calipers. ABS, DSC (Dynamic Stability Control), brake assist.
Steering:
Hydraulic power steering, Servotronic speed-sensitive assist.
Electrical System:
12V system, battery, alternator, starter, power distribution, fuses, relays.
Body And Chassis:
Body structure, doors, hood, trunk, interior trim, exterior trim, chassis components.
Climate Control:
Manual/Automatic HVAC, A/C system, heater core, blower motor, sensors.
Infotainment And Comfort:
iDrive system (CCC/CIC), audio system, navigation, comfort access, power seats, windows, mirrors.
Lighting:
Headlights (halogen, Xenon), taillights, interior lighting, fog lights.
Safety Systems:
Airbags (SRS), seat belts, pre-tensioners, crumple zones, pedestrian safety.
Routine Maintenance:
Oil changes, filter replacements, spark plug replacement, brake fluid flush, coolant flush.
Engine Diagnostics And Repair:
Compression testing, leak-down tests, component testing, internal engine repair (e.g., head gasket, timing chain).
Transmission Service:
Fluid and filter changes, torque converter replacement, valve body service, mechatronics unit repair.
Drivetrain Maintenance:
Transfer case fluid change, differential fluid change, driveshaft inspection/repair.
Suspension And Steering Repair:
Component replacement (shocks, struts, control arms, tie rods), alignment specifications.
Brake System Service:
Pad and rotor replacement, caliper service, bleeding procedure, ABS/DSC component diagnostics.
Electrical Troubleshooting:
Wiring diagrams, component testing, diagnostic connector (OBD-II) information, module diagnostics.
Body And Interior Repair:
Panel alignment, door mechanism repair, interior trim removal/installation, glass replacement.
HVAC System Service:
Refrigerant recharge, component replacement (compressor, evaporator, heater core), diagnosis of climate control faults.
Infotainment System Diagnostics:
Troubleshooting iDrive system errors, component replacement (head unit, display, modules).
Safety System Repair:
Airbag module replacement, seat belt replacement, sensor calibration.
Diagnostic Trouble Codes DTCs:
Listing and interpretation of common OBD-II and BMW-specific DTCs.
Diagnostic Capability:
Advanced diagnostics for engine, transmission, chassis control modules (ABS, DSC, Airbag), and body electronics.
Repair Complexity:
Covers everything from basic fluid changes to complex engine and transmission overhauls, including specialized component replacement.
Wiring Diagrams:
Detailed electrical schematics for all systems, essential for troubleshooting.
Torque Specifications:
Precise torque values for all fasteners, critical for proper assembly.
Special Tools:
Identification and usage instructions for BMW-specific tools required for certain procedures.
NHTSA Front Crash Test:
5 Stars (2007 model year, for Sedan)
NHTSA Side Crash Test:
5 Stars (2007 model year, for Sedan)
IIHS Front Small Overlap:
Not rated (vehicle pre-dates the IIHS small overlap test introduction)
ABS:
Yes, Anti-lock Braking System
Dsc:
Yes, Dynamic Stability Control (includes traction control)
All Wheel Drive:
Yes, xDrive intelligent all-wheel-drive system
Airbags:
Front airbags, front side-impact airbags, front and rear head protection system (curtain airbags).
Seatbelts:
3-point inertia-reel seat belts with pretensioners and force limiters.
Chassis Design:
High-strength steel safety cage, front and rear crumple zones.
Infotainment System:
iDrive system (primarily CCC - Car Communication Computer, with later models potentially receiving the CIC - Car Information Computer upgrade).
Display Type:
Central dashboard display (color LCD).
Audio System:
Standard Hi-Fi audio, with optional Logic 7 (Harman Kardon) premium sound system.
Navigation:
Optional Professional Navigation system, typically DVD-based for this era.
Adaptive Headlights:
Optional Xenon Adaptive Headlights that swivel with steering input.
Parking Assistance:
Optional Parking Distance Control (PDC) sensors (front and rear), and optional rearview camera.
Cruise Control:
Standard cruise control, with optional Active Cruise Control (ACC) which maintains speed and distance to the vehicle ahead.
Head Up Display:
Optional Head-Up Display (HUD) projecting key information onto the windshield.
Bluetooth:
Optional Bluetooth hands-free interface, often integrated with the iDrive system.
Usb Aux:
Early models may have an AUX input; USB integration became more common with later iDrive updates (CIC).
Comfort Access:
Optional keyless entry and start system.
Heated Ventilated Seats:
Optional heated seats standard; ventilated seats were a rarer option.
Oil Change Interval:
Variable Oil Service (Condition Based Service - CBS), typically ranging from 10,000 to 15,000 miles (16,000-24,000 km) or 12-24 months, depending on driving conditions.
Engine Oil Filter Interval:
Recommended every oil change.
Air Filter Interval:
Typically every 30,000 miles (48,000 km) or as per CBS.
Cabin Air Filter Interval:
Typically every 15,000-20,000 miles (24,000-32,000 km) or as per CBS.
Spark Plug Interval:
Typically every 60,000 miles (96,000 km) for N52 engine (NGK SILZKFR6A11 recommended).
Brake Fluid Flush Interval:
Every 2 years, regardless of mileage.
Coolant Flush Interval:
BMW recommends long-life coolant, often 5 years or 100,000 miles (160,000 km) for initial change, then every 2 years.
Transmission Fluid Change:
Although often considered 'lifetime' by BMW, it is highly recommended to change every 60,000-100,000 miles (96,000-160,000 km) for longevity, especially given the complexity of the ZF transmission.
Engine Oil Type:
SAE 0W-30 or 0W-40 synthetic, meeting BMW LL-01 specification.
Engine Oil Capacity:
6.9 US quarts (6.5 liters)
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) mixed 50/50 with distilled water.
Power Steering Fluid:
Pentosin CHF 11S or equivalent (ensure correct specification).
Valve Cover Gasket Leaks:
Common on N52 engines due to aging plastic components and seals. Causes oil smell and potential oil consumption.
Oil Pan Gasket Leaks:
Another common leak point, often requiring removal of exhaust and subframe components for access.
Ccv System Failures:
Crankcase Ventilation system can become clogged or fail, leading to oil leaks, rough idle, and potential engine damage if unaddressed.
Water Pump And Thermostat:
Aluminum water pumps on N52 engines can fail, often accompanied by a whistling sound or coolant loss. Thermostat can also become stuck.
Eccentric Shaft Sensor:
Can fail on N52 engines, leading to SES light and misfires due to issues with the Valvetronic system.
Transmission Mechatronic Seal Leaks:
Can cause leaks at the transmission electrical connector, potentially leading to transmission faults.
Xdrive Transfer Case Issues:
Fluid changes are crucial; premature wear can occur if neglected. Clunking noises or binding can indicate issues.
Power Steering Pump Noise:
Can develop whining or groaning sounds, often due to low fluid or a failing pump.
Wiper Motor Failure:
A common failure point affecting both front and rear wipers (if equipped).
Window Regulator Failure:
Plastic components in the window regulator mechanism can break, causing windows to stop working or fall into the door.