2009 BMW 328i xDrive Preventive Maintenance & Service Schedule

Key Takeaways

• The 2009 BMW 328i xDrive (E90) is powered by the N52KP 3.0-liter naturally aspirated inline-6 engine, producing 230 horsepower and 200 lb-ft of torque, with BMW's xDrive all-wheel-drive system .
• BMW utilizes a Condition Based Service (CBS) system that uses sensors and special algorithms to calculate individualized service intervals based on actual driving conditions, not a fixed schedule .
• Motor oil is the single most important element in keeping your engine healthy. Pelican Parts recommends changing synthetic motor oil every 5,000 miles and always replacing the filter when changing the oil .
• The N52 engine has an oil capacity of 6.5 liters and requires BMW-approved synthetic oil meeting BMW Longlife-01 (LL-01) specifications .
• Brake fluid is a time-dependent service requiring replacement every two years .
• Wheel bearings should be cleaned and repacked once a year with high-temperature grease .

Understanding BMW's Condition Based Service (CBS) System

The 2009 BMW 328i xDrive is equipped with the Condition Based Service (CBS) system . Unlike conventional systems that rely on a rigid fixed schedule, this intelligent system uses sensors and special algorithms that take the driving conditions of your BMW into account to determine current and future service requirements. By letting you define a service and maintenance regimen that reflects your own individual requirements, the system builds the basis for trouble-free driving .

What CBS Monitors

On the Control Display, you can view the remaining times or distances for selected maintenance tasks :

• Engine oil service
• Brake pads: separately for front and rear
• Brake fluid
• Vehicle check
• Legally mandated inspections depending on local regulations

Service Data in the Remote Control

Your vehicle continuously stores service-requirement information in the remote control while you are driving. Your BMW Service Advisor can read this data from the remote control unit and propose an optimized maintenance approach. Whenever you take your car in for servicing, you should hand your BMW Service Advisor the remote control unit that you last used .

Important: Make sure that the date is always set correctly; otherwise, the effectiveness of Condition Based Service CBS is not assured .

Major Periodic Service

For major periodic service, this should generally be done every 2 years or after 30,000 kilometers (approximately 18,600 miles) .

Service and Warranty Documentation

For additional information on service requirements, consult the Service and Warranty Information Booklet for US models and Warranty and Service Guide Booklet for Canadian models . BMW recommends that you have service and repair operations performed at your BMW center .

Engine Oil Service

Motor oil is the single most important element in keeping your engine healthy and helping it to enjoy a long life .

Oil Specifications

The 2009 328i xDrive's N52 engine requires BMW-approved synthetic oil.

Oil Capacity: The N52 3.0L engine has an oil capacity of 6.5 liters (with filter) .

Approved Specifications:

• BMW Longlife-01 (LL-01) (recommended specification)
• ACEA A3/B4
• API SN/CF

Approved Viscosity Classes:

• SAE 0W-40
• SAE 0W-30
• SAE 5W-40
• SAE 5W-30

Oil Change Interval

Factory Guidance: The CBS system determines oil change intervals based on driving conditions. Add a maximum of 1 US quart/1 liter of engine oil no earlier than when a corresponding message appears on the Control Display . Add oil within the next 125 miles/200 km; otherwise, the engine could be damaged . Have oil changes performed only at your BMW center or at a workshop that works according to BMW repair procedures with correspondingly trained personnel .

Specialist Guidance: Pelican Parts recommends changing your synthetic motor oil every 5,000 miles and always replacing the filter when changing the oil . Different engines and climates require specific oil viscosities; refer to your owner's manual for the type and viscosity of oil required for your car .

Checking Oil Level

To check the engine oil level:

1. Navigate through iDrive: "Vehicle Info" → "Vehicle status" → "Engine oil level" .
2. If engine oil was added, it may take up to 30 minutes to obtain an oil level reading .
3. If the oil level is below the minimum value, add engine oil immediately to avoid engine damage .
4. If "Engine oil level too high" is displayed, have the vehicle checked without delay—too much oil will harm the engine .

Oil Change Cost

The estimated cost for an oil change on a 2009 BMW 328i xDrive ranges depending on the service provider and oil type.

Brake Fluid Service

Recommended Interval

BMW recommends brake fluid replacement every two years as a time-dependent service . This interval is critical for maintaining braking performance and preventing internal corrosion in the hydraulic system.

Fluid Specifications

The 2009 328i xDrive uses brake fluid meeting DOT 4 specifications.

Service Rationale

Brake fluid is a hydraulic fluid specially formulated to withstand the extreme pressures and temperatures of your braking system. Over time, brake fluid absorbs air, moisture, sludge, and other contaminants. If brake fluid appears brown or black, it has collected significant contamination and should be replaced immediately. A brake system flush removes the existing fluid and moisture from the system and replaces it with new, clean fluid, ensuring proper brake system performance.

Wheel Bearing Maintenance

Specialist Recommendation: Wheel bearing grease lubricates the bearings that support the weight and heat generated by the spinning of the wheels. Pelican Parts recommends cleaning and repacking wheel bearings once a year with high-temperature grease .

Spark Plug Service

Recommended Interval

The N52 3.0L engine uses 6 spark plugs. BMW recommends replacing spark plugs at the factory-recommended interval. The specific interval can be found in the vehicle's Service and Warranty Information Booklet.

Transmission and xDrive Drivetrain Fluid Service

For the xDrive all-wheel-drive system, the transfer case and front and rear differentials contain specialized fluids that require periodic changes. While BMW's original maintenance program considered these fluids as "lifetime" fills for some components, independent specialists often recommend servicing these components at regular intervals to ensure the longevity of the all-wheel-drive system. The Bentley BMW 3 Series Service Manual covers maintenance procedures including ATF changes and service for the xDrive system .

Recommended Preventive Maintenance Summary

Frequently Asked Questions

How often should I change the oil on my 2009 BMW 328i xDrive?

Pelican Parts recommends changing synthetic motor oil every 5,000 miles and always replacing the filter when changing the oil . The CBS system may allow for longer intervals, but this conservative approach is recommended for the N52 engine. The N52 engine has an oil capacity of 6.5 liters and requires BMW LL-01 approved synthetic oil .

What type of engine oil does the 2009 BMW 328i xDrive use?

The N52 engine requires BMW-approved synthetic oil meeting BMW Longlife-01 (LL-01) specifications . Approved viscosity classes include SAE 0W-40, SAE 0W-30, SAE 5W-40, and SAE 5W-30. If approved oils are not available, up to 1 US quart/1 liter of another oil with API SM or higher specification may be used .

How does the BMW Condition Based Service (CBS) system work?

CBS is BMW's onboard system that uses sensors and special algorithms to evaluate your driving conditions and calculate when service is required . Service data is stored in the remote control key and can be read by your BMW service center. The system monitors engine oil, brake pads, brake fluid, and vehicle check requirements. The extent of service work required can be read out from the remote control by your BMW Service Advisor .

When should the brake fluid be replaced?

BMW recommends brake fluid replacement every two years as a time-dependent service . If the brake fluid appears brown or black, it should be replaced immediately.

How often should wheel bearings be serviced?

Pelican Parts recommends cleaning and repacking wheel bearings once a year with high-temperature grease . Wheel bearing grease lubricates the bearings that support the weight and heat generated by the spinning of the wheels.

What is the major periodic service interval?

For major periodic service, this should generally be done every 2 years or after 30,000 kilometers (approximately 18,600 miles) .

What is the oil capacity of the 2009 BMW 328i xDrive?

The N52 3.0L engine has an oil capacity of 6.5 liters (with filter) .

What spark plugs does the 2009 BMW 328i xDrive use?

The N52 3.0L engine uses 6 spark plugs. BMW recommends replacing spark plugs at the factory-recommended interval, which can be found in the vehicle's Service and Warranty Information Booklet.

Where can I find detailed service information for my 2009 BMW 328i xDrive?

Consult the Service and Warranty Information Booklet for US models and Warranty and Service Guide Booklet for Canadian models for additional information on service requirements . The Bentley BMW 3 Series (E90, E91, E92, E93) Service Manual is a comprehensive source of service information covering 2006-2011 models, including the 2009 BMW 328i xDrive . Your BMW service center can read the service data from your remote control key to determine the specific maintenance required for your vehicle .