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Condition Based Service Explained
 
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Pelican Technical Article:

Condition Based Service Explained

Nick Czerula

Time:

1 hour1 hr

Tab:

$20

Talent:

*

Tools:

Varies depending on service

Applicable Models:

BMW 525i/xi Sedan (2004-07)
BMW 528i xDrive Sedan (2009-10)
BMW 528i/xi Sedan (2008-10)
BMW 530i/xi Sedan (2004-07)
BMW 530xi Wagon (2006-07)
BMW 535i xDrive Sedan/Wagon (2009-10)
BMW 535i/xi Sedan (2008-10)
BMW 535xi Wagon (2008)
BMW 545i Sedan (2004-05)
BMW 550i Sedan (2006-10)

Parts Required:

Service and maintenance parts

Hot Tip:

Store this in your owner's manual; keep track of what and when you need service

Performance Gain:

Understanding your vehicle maintenance needs

Complementary Modification:

Perform required service(s)

In the past, automotive service and maintenance intervals were recommended based primarily on mileage. For example, not long ago, most manufacturers recommended engine oil and filter changes every 3000 miles. This recommendation was based on assumptions regarding length of the average drive and other presumed "normal" conditions. Manufacturing materials and techniques have improved dramatically and service items like engine oil are also vastly improved over versions used 30 or 40 years ago. Automobile engine operation and performance is now almost entirely computer controlled. Primarily due to very strict emissions controls, electronic sensors monitor almost every aspect of engine operation. Computerized feedback mechanisms correct small fluctuations from mapped operation parameters. Depending on use, maintenance intervals on most vehicle functions have been lengthened considerably compared to the standards of previous decades. Fluid levels and wear items such as brake pads can be monitored by sensors, with dashboard warning lights or messages alerting the driver to the maintenance needs of the vehicle.

Condition based service (CBS) is the system BMW created to manage regular service intervals and maintenance items. Service intervals and maintenance items are no longer services solely based on mileage or time, but now on a combination of items. CBS utilizes sensors, vehicle driving conditions, and time to determine the service intervals.

In this article, I'll explain CBS and what it means when servicing your BMW E60. Before getting too deep into CBS, keep in mind, you decide when it is time to service what. Use the BMW CBS items as a guide. As an example of this, I would not leave a spark plug in my personal vehicle for 100,000 miles. That is what BMW suggests. I prefer to replace them at 60,000, as you may also. What is most important is to perform preventive maintenance to prolong the life of your BMW E60.

Maintenance items monitored by CBS can be viewed via the dashboard information center (early models) or via the iDrive screen (late models). The displayed maintenance items are: engine oil, front and rear brake pad service, brake fluid and cabin microfilter. Beginning in 2008, spark plugs and cabin microfilter intervals were removed from CBS and returned to standard service procedures, for example: spark plugs replaced every 100,000 miles and the cabin microfilter every 15,000 miles (or every third oil change).

CBS sorts service requirements according to date due and notifies you when the vehicle needs a service appointment. But you can also access these items and view the remaining time / mileage until service, as described below. If the state you reside in requires emission or safety inspections, this information may also be programmed and displayed. For 2006 and later models, service information is stored electronically in your remote key. If you bring your vehicle in for service, the service center will read this information via a key reader to determine needed service.

Remember that your car may have been serviced before and had parts replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.

Our vehicle may vary slightly from yours as models do change and evolve, as they grow older. If something seems different, let us know and share your info to help other users. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

Checking service information via your instrument panel display: Service information will be displayed in the center of the instrument panel (green arrow).
Figure 1

Checking service information via your instrument panel display: Service information will be displayed in the center of the instrument panel (green arrow).

Checking service information via your instrument panel display: Turn your ignition ON but do not start the engine.
Figure 2

Checking service information via your instrument panel display: Turn your ignition ON but do not start the engine. Be sure the doors are closed. Confirm the lower display in the instrument cluster shows time and mileage. Press and hold the set / reset button (green arrow) for 10 seconds. Scroll through the menu items using the set / reset button. Service information will be displayed in the order of priority.

Checking service information via your instrument panel display: Once you are at the desired item, press and hold the set / reset button (green arrow) until the word RESET appears.
Figure 3

Checking service information via your instrument panel display: Once you are at the desired item, press and hold the set / reset button (green arrow) until the word RESET appears. Press the set / reset button again and hold it until the mileage and distance displayed turns to dashes. Press the BC button on the turn signal stalk to confirm the reset.

Checking service information via your central information display: If you have an iDrive screen or navigation, you can check your maintenance items via the iDrive controls.
Figure 4

Checking service information via your central information display: If you have an iDrive screen or navigation, you can check your maintenance items via the iDrive controls. (green arrow)

Checking service information via your central information display: Call up the menu on the iDrive screen, then navigate to Info Sources, then Settings.
Figure 5

Checking service information via your central information display: Call up the menu on the iDrive screen, then navigate to Info Sources, then Settings. 

Checking service information via your central information display: Use the iDrive knob to navigate to the Service Info menu.
Figure 6

Checking service information via your central information display: Use the iDrive knob to navigate to the Service Info menu. Then select it by pressing the iDrive knob down.

Checking service information via your central information display: You can now select each service item and display the remaining time until service and reset as needed.
Figure 7

Checking service information via your central information display: You can now select each service item and display the remaining time until service and reset as needed.

If an item will not reset or the reset interval is wrong, you can try to repeat the reset procedure.
Figure 8

If an item will not reset or the reset interval is wrong, you can try to repeat the reset procedure. If this does not help, you may need to access the CBS data (green arrow) via a BMW scan tool and perform the reset. With the BMW scan tool, you can access, reset and correct service intervals.

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Comments and Suggestions:
Bose Comments: i READ A POST THE GUY HAD THE SAMETHANG AND HIS CAR WOULD NOT SHIFT JUST LIKE MINE I HEARD CODE PO335-CRANK SHAFT SENSOR WOULD THROW TRANNY CODES. THANK'S NICK I DON'T KNOW WHAT TO DO.
February 3, 2015
  Followup from the Pelican Staff: P0335 is a crank sensor code. If your trans isn't shifting, first check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. - Nick at Pelican Parts  
Bose Comments: I Replaced my crank sensor and my car is still coding p0335 and p1727 i need help.
February 1, 2015
  Followup from the Pelican Staff: I would confirm the sensor is producing the correct signal and it is making it to the DME. - Nick at Pelican Parts  

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Page last updated: Fri 12/9/2016 02:23:20 AM