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BMW 3-Series (E90 E92) Forum
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White Smoke After Downpipes
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04-17-2012, 02:43 PM | #23 |
Second Lieutenant
19
Rep 251
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Ok, if my turbos are blown and it only smokes without the catalytic converter, how do I show that to the dealer for them to warranty it?
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2008 E90 335i, Cobb Ap, ETS CP with TiAL Q BOV, Cyba Air Scoops, BMS OCC, M3 Rep. Front, V-Lip, M-tech Rear, BMW Performance Kidney Grill, M-Tech trunk Spoiler, ACS Roof Spoiler, OEM Blacklines, H&R Sports, Koni Yellow Sports And Apec EC-7.
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04-17-2012, 06:53 PM | #26 |
Second Lieutenant
19
Rep 251
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I hope you are right because after three days and over 200 miles of driving, the smoke keeps getting worst.
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2008 E90 335i, Cobb Ap, ETS CP with TiAL Q BOV, Cyba Air Scoops, BMS OCC, M3 Rep. Front, V-Lip, M-tech Rear, BMW Performance Kidney Grill, M-Tech trunk Spoiler, ACS Roof Spoiler, OEM Blacklines, H&R Sports, Koni Yellow Sports And Apec EC-7.
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04-17-2012, 11:42 PM | #27 |
Private
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Rep 53
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I have experianced this in my e92, but only on warm up at idle. I drive the car less than 600ft and no more smoke until I shut the engine down, let it cool completely and restart. I have come to the conclusion that due to cat less dp's hydrocarbons that do not exit the dp's settle there after shut down. Then when you restart as the dp's and exhaust heat up those left over HC's begin to burn hence the white smoke not blue. It smells like burning oil probably due to how the engines Are bored from the manufacture, BMW does not use a tourqe plate when boring theses engines. There for when they install the heads and torque them down it egg shapes the cylinder bore and creates windows, at least one per cylinder that oil can blow by and burn, but not enough to cause blue/grey smoke just the smell.
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04-18-2012, 03:05 PM | #28 | |
Brigadier General
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Quote:
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02-15-2018, 02:21 PM | #29 |
Registered
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Im having the same problems on my 550i xdrive, smoke coming out from the exhaust pipes with a smel burning, all after I did Down pipes and JB4... also check engine light came on after 3
days driving... before the Down pipes i already had fuel pump replaced fuel injectors, coil ignition and all spark plugs... |
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