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Originally Posted by mgruber
Man did this thread get confusing!
To sum up: SLX5 first posted a question, but has not posted since. I specifically asked him what car/year/engine he had so that I/we could give him the proper advice. Then Flatlander asked about the heated wrap fix, which is specific to the M62 4.4 engine (again, still no idea what SLX5 has). I put up a photo of that fix and the link to the thread that has the SIB posted. Then there was a bunch of ranting (some pretty good) about BMW's business model. Some more talk about engine design (some very good) and then someone else with an M54 3.0 liter engine asked about the fix specific for him. To which Twinspoppa posted the SIB from a previous thread. Keep in mind there are 3 basic X5 engines and all have different fixes for the same problem. Clear!? (anyone still reading this?) It would probably be worthwhile to post the SIB's on the main page. Anyone know who to ask to do it?
BTW Twinspoppa, you are missing one page of that SIB (there are 3 in my original post), please fix it or someone will be (even more) confused.
Yes replaced parts have the 2 year warranty, but you previously said you thought it should be a service item (like an oil filter) which is nothing more then wishful thinking!
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Thanks mgruber, primetime, JCL, amacman, x54.4_blue, lo_jack, and Twinspoppa for the interesting thread.
I should rephrase my earlier claim to say that the separator and hoses can indeed wear out over time. It is not a commonly known maintenance part. It also has this unfortunate cold weather failure mode, which can have serious repair consequences. When it fails, you need to stop the engine to avoid running it on too little oil and avoid locking up your engine.
I would suggest that anyone in cold climates do a routine check on the hoses and separator every fall. It's easy to check the hoses. It's not so easy to remove and inspect the separator. The dipstick tube and separator return tubes should also be inspected and cleaned as needed.
The next time I check it out, I'll be sure to post some pictures (M62 engine).
Thanks again and happy driving!