quote:
Originally posted by G-Man II:
F1, I've read the BMW equivalent of a TSB concerning this issue, and it specifically mentions the use of the wrong oil as a contributing factor to the M3 engine failures.
When was this TSB issued? BMW initially looked at some other factors that could contribute to engine failure but later on it was established that mentioned bearings were failing due to stress and inadequate lubrication. It was not because of oil used (most cars were filled with 10W-60 TWS) but design problem with oil pump and bearings. Thanks to documentation and action taken by some of the owners Service Action was issued.
This is from bimmer.org:
"Re: Notice to Customers Affected by Service Action for M3’s with S54 engines
I’m with BMW of North America, LLC (BMW NA). If your vehicle is affected by the Service Action, BMW NA strongly recommends you have this Service Action performed to reduce the possibility of future engine damage.
Although you currently may not be experiencing any problems related to this Service Action, such as a knocking or rattling sound from the engine, BMW engineers determined that your car has the potential to experience this problem in the future.
As you are aware, the Service Action requires the replacement of the engine oil pump and, as a precautionary measure, replacement of the connecting rod bearings. In addition, the engine control module will be programmed with the latest software, which improves cold-start characteristics.
BMW center technicians receive computer-based training and step-by-step procedures for performing this Service Action. In addition, BMW provides comprehensive M3 specific training to its authorized centers.
BMW Certified Technicians will perform this Service Action. BMW has structured the repair so that it is a simple, straightforward procedure. It is not necessary for the technician to measure for the appropriate connecting rod bearing, since one classification of connecting rod bearing is used for the M3 engine.
The bearings are color-coded to ensure proper placement. BMW has provided a repair kit with all the necessary parts to conduct this Service Action. We are confident that our authorized BMW centers are more than capable to perform this repair correctly.
In the event you received owner notification of this Service Action and neglect to have it performed within a reasonable period after notification, or choose not to have the Service Action performed, and the engine fails, the necessary repairs may not be covered under the terms of the warranty. The warranty does not cover damage, which results from negligence, improper operation of the vehicle, or improper maintenance.
This Service Action will take approximately one day’s work to complete, however, additional time may be required depending upon your BMW center’s scheduling. The repair will be performed free-of-charge.
Please feel free to contact your authorized BMW center with any questions, or you may contact us at 800-831-1117 or through our website, bmwusa.com. "
In my previous post I meant S54 engine (M3), of course and not S62 (M5), sorry.
[ September 03, 2003, 11:30 PM: Message edited by: F1Crazy ]