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khess khess is offline
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Default Bad turbos? Seals? - 04-03-2019, 06:14 AM

I'm new to the whole BMW world and recently picked up an '08 535xi for dirt cheap. Started the car and immediately large clouds of white smoke billowed out from the exhaust with a tinge of blue in it. Moved the car 100 feet to get to a trailer and "oil pressure low" message popped up, the car sputtered and shut off. I did not restart it, just put it in neutral and loaded the car.

No visible leaks anywhere I can tell, looks like there is some oil in the tailpipe and managed to pull 12 codes out with a normal OBD2 hand scanner :
0304-Cylinder 4 misfure
0442-EVAP Leak
0139-O2 senso low back 1 sensor 2
2297-O2 Sensor out of range during decel Bank 1 sensor 2
112C- O2 sensor negative / positive Bank 1 Sensor 1
0159- O2 Sensor slow response Bank 2 Sensor 2
0303- Cylinder 3 misfire
0300- Multiple misfires

Then a repeat of 0304,0442, 0139, 112C

I was told by the person I picked it up from it needed turbos. Posting here to see if I can't get a better idea or more guidance. Thank you in advance!
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Vorsprung_CJB Vorsprung_CJB is offline
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Default 04-03-2019, 09:36 AM

Would drain whatever oil is left and check for contamination. Also check coolant. Any fuel smell? Sometimes white smoke can be a bad injector. The low oil pressure and multiple misfires are concerning though. What kind of mileage? Was it a modded car?
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ifjd073 ifjd073 is offline
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Default 04-03-2019, 09:37 AM

Misfires are generally not turbo related. Not sure on the O2 sensors, although the car's pretty old so they may need to be replaced. There's a crapton of info out there on misfires - but generally, you should check the sparkplugs to make sure they are good, since the car's new to you. But typically, you swap coils around to see if the misfire follows the coil. If it does, replace the coil(s). if it stays, try swapping plugs to see if the misfire follows, if it does, change the plug(s). If it still stays, you may need new injector(s).


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khess khess is offline
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Default 04-03-2019, 09:40 AM

No fuel smell as far as I could tell ( need a second opinion, allergies have my nose out of service lol). I forgot to write the mileage down, but its a completely stock car.

It's been sitting for two years and the PO wasn't that great at maintenance.

Car wouldn't fire up after the low oil pressure message, so I'm assuming I should add oil / change the oil and try to fire it back up.
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arkie6 arkie6 is offline
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Default 04-03-2019, 03:39 PM

You might drain the oil and capture a sample to send off for oil analysis to see if excess fuel, water, coolant, or bits of bearings are floating around in there.
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khess khess is offline
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Default 04-04-2019, 08:23 AM

I'm going to grab a proper scanner, rather than my $30 handheld one..check the oil, drain the oil and see if there is oil residue in the tailpipe.
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JuniorB JuniorB is online now
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Default 04-04-2019, 06:11 PM

+1 on sending out oil analyst. You may never know what your getting yourself into, the really cheap statement says should tell you something is lurking!
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