2007 maintenance schedule
2007 BMW 328ci Convertible Preventive Maintenance & Service Schedule
The 2007 BMW 328ci Convertible is equipped with the Condition Based Service (CBS) system.
Last updated
August 23, 2026
Reviewed for service schedule clarity.
Key Takeaways
- The 2007 BMW 328ci Convertible is powered by the N52KP 3.0-liter naturally aspirated inline-6 engine and is part of the E93 generation .
- The original BMW Maintenance Program covered factory-recommended maintenance for 48 months or 50,000 miles, which has long since expired .
- BMW's Condition Based Service (CBS) system calculates individualized service intervals based on actual driving conditions .
- Brake fluid requires replacement every two years as a fixed time-dependent service .
- Major periodic service should generally be performed every 2 years or after 30,000 kilometers (approximately 18,600 miles) .
Understanding BMW's Condition Based Service (CBS) System
The 2007 BMW 328ci Convertible is equipped with the Condition Based Service (CBS) system . Unlike conventional systems that rely solely on distance traveled, this intelligent system uses sensors and special algorithms that take the different driving conditions of your BMW into account to determine current and future service requirements .
What CBS Monitors
On the Control Display or instrument cluster, you can view the remaining times or distances for selected maintenance tasks :
- Engine oil service
- Brake pads: separately for front and rear
- Microfilter/activated-charcoal filter
- Brake fluid
- Spark plugs
- 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 .
Original Factory Maintenance Coverage
The 2007 BMW 328ci Convertible came with BMW's Maintenance Program, covering factory-recommended maintenance for 48 months or 50,000 miles . This coverage has long since expired for this model year. Regular preventive maintenance is now essential for preserving vehicle safety, value, and dependability.
Preventive Maintenance Schedule
Engine Oil Service
CBS Guidance: The CBS system determines engine oil change intervals using an oil condition sensor that monitors oil quality, level, and temperature, combined with algorithms based on engine load, driving style, and fuel consumption .
Specialist Guidance: Motor oil is the single most important element in keeping your engine healthy and helping it to enjoy a long life . Pelican Parts recommends changing synthetic motor oil every 5,000 miles and always replacing the filter when changing your oil .
Oil Capacity: The N52/N51 3.0L engine has an oil capacity of 6.5 liters .
Oil Specifications: All 2007 model year 3 Series vehicles are factory-filled with BMW High Performance Synthetic oils . BMW strongly recommends:
- BMW High Performance 5W-30 Synthetic Oil (BMW part number 07 51 0 017 866)
- Mobil 1 0W-40
If BMW-approved oil is unavailable, use a synthetic oil with an API rating of SH or higher . BMW recommends checking your engine oil level whenever you add fuel to your vehicle .
Brake Fluid Service
Recommended Interval: BMW recommends changing the brake fluid every two years .
Service Rationale: Brake fluid is a hydraulic fluid specially formulated to withstand the extreme pressures and temperatures of your braking system . Brake fluid is hygroscopic, meaning it absorbs moisture from the air over time . Moisture in the brake system can corrode internal components and lower the fluid's boiling point, leading to brake fade. Regular replacement every two years is critical for maintaining braking performance.
Fluid Specification: The 2007 328ci Convertible uses brake fluid meeting DOT 4 specifications . Brake fluid should be changed every time you service your brakes .
Major Periodic Service
A general BMW recommendation for major periodic service is every 2 years or after 30,000 kilometers (approximately 18,600 miles) . The specific service scope is determined by the CBS system in your individual vehicle based on your driving conditions.
10,000 Miles or 12 Months
Synthetic oil and oil filter changes typically occur every 10,000 miles or 12 months, whichever occurs first . Coolants are also checked at the 10,000-mile mark .
20,000 to 40,000 Miles
Fuel filters should be changed every 20,000 to 40,000 miles . Brake fluid may also be changed at the 30,000-mile mark, then every 60,000 miles thereafter .
60,000 Miles
BMW technicians will change the engine air filter and spark plugs every 60,000 miles .
Additional Preventive Maintenance Considerations
Wheel Bearings
Pelican Parts recommends cleaning and repacking wheel bearings once a year. Wheel bearing grease lubricates the bearings that support the weight and heat generated by the spinning of the wheels .
Steering System
Routinely inspect steering linkages, bushings, ball joints, and tie rod ends. Check the power steering pump, rack, and hoses for signs of leaks or damage. Plan to flush and drain old fluid to remove harmful contamination .
Cabin Air Filter
Cabin air filters remove pollen, dirt, and harmful airborne pollutants from cabin air. Clogged cabin filters restrict airflow through the heater and air conditioner, reducing HVAC efficiency. Replace cabin filters at recommended intervals for best results .
Brake System
Periodic cleaning, inspection, and maintenance, including fluid flushes, ensure peak braking performance and extend brake service life .
Summary of Preventive Maintenance Intervals
| Component | Recommended Interval | Key Notes |
|---|---|---|
| Engine Oil & Filter | CBS-determined; specialist recommends 5,000 miles | 6.5L capacity; BMW High Performance 5W-30 or Mobil 1 0W-40; API SH or higher |
| Brake Fluid | Every 2 years | DOT 4 specification; time-dependent service |
| Major Periodic Service | Every 2 years or 30,000 km | CBS-determined scope |
| Engine Air Filter | 60,000 miles | Replace as indicated by CBS |
| Spark Plugs | 60,000 miles | Replace as indicated by CBS |
| Fuel Filter | 20,000-40,000 miles | Keep fuel system clean |
| Wheel Bearings | Annually | Clean and repack |
| Vehicle Check | CBS-determined | Comprehensive inspection when indicated |
Frequently Asked Questions
How often should I change the oil on my 2007 BMW 328ci Convertible?
The CBS system determines the interval based on your driving conditions. Pelican Parts recommends changing synthetic motor oil every 5,000 miles for optimal engine health . The N52/N51 3.0L engine has a capacity of 6.5 liters and requires BMW-approved synthetic oil .
How does the BMW Condition Based Service (CBS) system work?
CBS uses sensors and special algorithms that take the different driving conditions of your BMW into account to determine current and future service requirements . 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, spark plugs, and vehicle check requirements .
When should the brake fluid be replaced on my 2007 BMW 328ci Convertible?
BMW recommends brake fluid replacement every two years . The 2007 328ci Convertible uses DOT 4 brake fluid . If the brake fluid appears brown or black, it should be replaced immediately .
What engine oil does the 2007 BMW 328ci Convertible use?
All 2007 model year 3 Series vehicles are factory-filled with BMW High Performance Synthetic oils . BMW strongly recommends BMW High Performance 5W-30 Synthetic Oil (part number 07 51 0 017 866) and Mobil 1 0W-40 . If BMW-approved oil is unavailable, use a synthetic oil with an API rating of SH or higher .
What was the original warranty coverage on the 2007 BMW 328ci Convertible?
The 2007 BMW 328ci Convertible came with a 48-month or 50,000-mile maintenance program covering factory-recommended maintenance as determined by the CBS system . This coverage has long since expired for this model year.
Where can I find detailed service information for my 2007 BMW 328ci Convertible?
The BMW 3 Series (E90, E91, E92, E93) Service Manual from Bentley Publishers contains in-depth maintenance, service, and repair information for the 2007 BMW 328ci Convertible . The vehicle's Owner's Manual and Service and Warranty Information Booklet also provide maintenance details .
What is the major periodic service interval for the 2007 BMW 328ci Convertible?
A general BMW recommendation for major periodic service is every 2 years or after 30,000 kilometers (approximately 18,600 miles) . The specific service scope is determined by the CBS system in your individual vehicle.
When should wheel bearings be serviced?
It is a good idea to clean and repack your wheel bearings once a year. Wheel bearing grease lubricates the bearings that support the weight and heat generated by the spinning of the wheels .