View Full Version : oil change


jcaco
06-10-2007, 11:05 AM
okay this is my first post and i'm sure it sounds really silly, but could i please get some input?

i have a new 2007 530i and it's currently at about 1500 miles. so i figured it was time for an oil change, but the indicator in the car says i won't be needing one until i reach 15k miles! this just doesn't seem right to me! is this correct or am i not looking at the right indicator?

thanks!
-j

thejlevie
06-10-2007, 02:33 PM
Modern BMW's have an extended oil change interval that is based on fuel consumption, which works out to be somewhere between 12 & 18k, depending on how you drive the car. If your driving cycle is mostly highway driving with at least 20 minutes of sustained high speed for each trip ( a rural driving cycle) the extended oil/filter change intervals are fine. However in a predominately urban driving cycle (lots of short low speed trips) much more frequent change intervals are desirable to keep from "gunking up" the engine. In extreme cases changes ever 2-3k aren't unreasonable. A mid-interval change of oil and filter is recommended for most folks that have a mix of urban and rural driving cycles. You can't reset the service indicator on the intermediate changes and wouldn't want to as that affects when the Inspection I & Inspection II alerts will appear (see your owner's manual for an explanation).

Mad Dragon
06-10-2007, 05:59 PM
E60s don't have Inspection I and II. The CBS system is different than the old SAI.

'07 530s have an N52 engine. Built into its oil level sensor is an oil condition sensor.
Electronic Oil Condition Monitoring
There is no dipstick including the guide tube on the N52 engine. This represents a
convenience function for the customer while enabling more accurate recording of the
engine oil level.
The engine oil level is measured by an oil condition sensor (OZS) and indicated in the
central information display (CID). The engine oil temperature and the oil condition are
also registered or calculated by the oil condition sensor. The signal from the oil condition
sensor is evaluated in the ECM. The evaluated signal is then routed via the PT-CAN,
SGM and the K-CAN to the instrument cluster and to the CID.
Registering the engine oil level in this way ensures the engine oil level in the engine does
not reach critically low levels thus protecting the engine from the associated damage. By
registering the oil condition, it is also possible to determine when the next engine oil
change is due. Over filling the engine with oil can cause leaks - a corresponding warning
is therefore given.