535i N54 Smoking Issue

Kaikun · 10-25-2020, 05:30 PM

Hello everyone,

So I've been doing research about it but I wanna get some replies with my situation to narrow it more down for me.

I recently just replaced my turbos due to worn turbo seals and it was originally blowing smoke on deceleration. I have been driving it the past couple of days with the new turbos(OEM). I was getting on the freeway but the car started acting funny so I exited right away and pulled over to realize I was covered in smoke. Worse than before. My coolant and oil temps all seemed to be ok. No leaks under the car but the car was blowing crazy white smoke on idle and when I would rev it.

I let the car sit overnight. Checked oil cap and filter, Oil is clean. I checked the coolant reservoir, it did go down but not empty or anything wild, and it still looked clear and blue. I started the car up on a cold start and it started smoking right away from around the turbo area and out the exhaust. Same color smoke and it smelt like burned oil.

I also have no check engine lights or codes to base anything off of. Just the smoke and I would also occasionally hear a weird noise coming from the turbos. Like a turbo whistle or whine of some sort.

My guess is that the turbo seals just went out again due to the fact that I am running MHD stage 2 with catless downpipes, chargepipe, and intake. Maybe the turbos didn't break in enough and the fact that the tune is pushing upwards of 17psi.

The other possibilities that I have read have been a failing pcv system or bad injectors. I did replace my valve cover not too long ago with a cheap valve cover so I wouldn't be surprised that the pcv system inside the valve cover is crap. I do have index 11 injectors that have been on the car for the past two years I owned the car but they haven't given me any major issues.

If anyone has anymore info they can give me possibly just to narrow down my thoughts on what is going on with my situation. That would help a lot.

Thanks!

Phil325i · 10-26-2020, 07:44 AM

Why have you posted this in the pictures section? You'll get more response if you post it in the drivetrain section:

https://www.e90post.com/forums/forumdisplay.php?f=58

10-25-2020, 05:30 PM	#1
Kaikun Enlisted Member 0 Rep 33 Posts Drives: 2008 535i Join Date: Jun 2018 Location: Corrales, New Mexico iTrader: (0)	Hello everyone, So I've been doing research about it but I wanna get some replies with my situation to narrow it more down for me. I recently just replaced my turbos due to worn turbo seals and it was originally blowing smoke on deceleration. I have been driving it the past couple of days with the new turbos(OEM). I was getting on the freeway but the car started acting funny so I exited right away and pulled over to realize I was covered in smoke. Worse than before. My coolant and oil temps all seemed to be ok. No leaks under the car but the car was blowing crazy white smoke on idle and when I would rev it. I let the car sit overnight. Checked oil cap and filter, Oil is clean. I checked the coolant reservoir, it did go down but not empty or anything wild, and it still looked clear and blue. I started the car up on a cold start and it started smoking right away from around the turbo area and out the exhaust. Same color smoke and it smelt like burned oil. I also have no check engine lights or codes to base anything off of. Just the smoke and I would also occasionally hear a weird noise coming from the turbos. Like a turbo whistle or whine of some sort. My guess is that the turbo seals just went out again due to the fact that I am running MHD stage 2 with catless downpipes, chargepipe, and intake. Maybe the turbos didn't break in enough and the fact that the tune is pushing upwards of 17psi. The other possibilities that I have read have been a failing pcv system or bad injectors. I did replace my valve cover not too long ago with a cheap valve cover so I wouldn't be surprised that the pcv system inside the valve cover is crap. I do have index 11 injectors that have been on the car for the past two years I owned the car but they haven't given me any major issues. If anyone has anymore info they can give me possibly just to narrow down my thoughts on what is going on with my situation. That would help a lot. Thanks!
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10-26-2020, 07:44 AM	#2
Phil325i Brigadier General 615 Rep 3,194 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Why have you posted this in the pictures section? You'll get more response if you post it in the drivetrain section: https://www.e90post.com/forums/forumdisplay.php?f=58 __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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