2006 550i blue smoke ??

[JayGray1]

Hey whats up everyone i recently bought my first bmw. its a 2006 550i it has 130k miles on the clock but it has a 2year after market warranty. ive noticed that every now n then it dumbs some blue smoke out of the exhuast upon start up and ive put a quart of oil in it to top it off so far. Has anyone dealt with this type of problem before? Ill appreciate any feedback

[sawtooth4x4]

it could be a worn out engine.

I worked on a 323i once that was eating oil like yours and blowing blue smoke. We ended up replacing the EGR system.

[Lord Vader]

Blue smoke is usually indicative of oil being burned in the combustion chamber. Usual cause for this is worn out piston rings. The piston rings are supposed to prevent oil from slipping past, but occasionaly when they wear out or crack oil seeps in.

[JayGray1]

ok thanks for the input. R there any test that can be done to check ? it doesnt happen all the time so its waste to bring it in if its not goin to do it. i also been doing alot of searching on the web and alot of owners of 545's, 550's, and some 7 series say that have to put in a quart of oil every 750-1000 miles

[Lord Vader]

I believe emmisions testing may be able to, but not sure.

If it doesnt happen all the time then your rings may not be blown. Some engines burn a little oil now and then. As long as your not adding a quart a day then you should be good. I recommend monitoring your oil level before and after commutes and seeing if their is a noticable difference.

[dallas550i]

Unfortunately, this is a common problem on the N62 V8 engines. The valve seals are worn, causing oil to leak into the combustion chamber. Typically this requires removal of the heads to replace them. Thankfully you bought a warranty, which I did not, when I bought my car back in June with 103k on the clock. I replaced the EGR diaphragms which were not torn, and that did nothing. I'm going to save up for the repair, then I should be good for a long while.