E90Post
 


European Auto Source (EAS)
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > E90 330D - Burning Oil



Reply
 
Thread Tools Search this Thread
      09-11-2019, 10:07 AM   #45
MrSweet1991
Lieutenant
MrSweet1991's Avatar
43
Rep
492
Posts

Drives: BMW E90 330D M Sport
Join Date: Apr 2017
Location: West Midlands

iTrader: (0)

Quote:
Originally Posted by Txs330D View Post
Haha! Good tip, Iíll give mine a good clean next weekend. I donít even know how much oil I am burning as I have no flat areas to check it on a regular. So when I get a chance and itís flat I take it. But I did about half a litre a few months ago. However, I donít do huge miles anymore, so maybe Iíd burn more with more miles. Will be a good 150 mile journey next weekend and itís flat whereís Iíll be doing my car so can check it a few times. It was filled last weekend with the turbo replacement.

I just did the maf trick and my blue smoke reduced a lot, but itís still there. So confused!
Yeah I'd definitely see if you can clean the built in oil separator in the valve cover because it's near impossible any other way, I absolutely detest BMW for choosing this flawed design.. any CCV issue and BMW would charge for a new valvecover which is so much money!

Anyway, An alloy cracked a couple of days ago and after having it welded I noticed oil towards the back of the sump by the flywheel. I had a repair to the sump in 2017 so maybe it's started to fail. I'm going to get some pictures and videos soon once I put the front on axle stands
Appreciate 0
      09-11-2019, 12:14 PM   #46
MrSweet1991
Lieutenant
MrSweet1991's Avatar
43
Rep
492
Posts

Drives: BMW E90 330D M Sport
Join Date: Apr 2017
Location: West Midlands

iTrader: (0)

Okay, I removed the radiator and intercooler to get an idea of the CCV system and to me it looks pretty good? Intercooler has a thin amount but doesn't seem excessive and you certainly wouldn't be able to pour it out. EGR is a but messy considering I spring cleaned it some time back and the EGR Vacuum pipe is blocked and EGR mapped out.

But then we move onto the sump it seems to be seeping from all around the gasket but the back right looks to be leaking more but I can't see any particular reason why? I was wondering if maybe the oil isn't getting burned so much but getting lost through the sump, but I don't have a splash panel so any droplets of oil would clearly be seen on the drive but there's absolutely nothing despite losing 1 litre per 1000 miles.. Unless when the oil gets to temperature and pressure forces it out but I would have expected oil splashes on the transmission.

I found a block of wood at the bottom maybe this was causing some of that low down knocking lol.

The transmission seems okay until you get near the exhaust mount?

Boost pipes seems okay so whats people opinions?

This is a video of the Engine Sump, Transmission Sump, Engine Mount, Boost Pipe and finding the wooden block



This is a video of the intercooler



This is a video of the EGR bare in mind its disabled both physically and ECU

Appreciate 0
      09-11-2019, 02:06 PM   #47
Txs330D
Private
0
Rep
61
Posts

Drives: E90 330D M Sport
Join Date: Nov 2018
Location: South East

iTrader: (0)

Maybe CCV? Seems to be a problem for the 335d guys too. Not sure the standard set up is up to much. More so with a straight pipe, the dpf probably catches it?

Pipes look a bit oily, but vaguely remember mine being the same!

Compression test? Will post my results Saturday/Sunday
Appreciate 0
      09-11-2019, 02:09 PM   #48
Txs330D
Private
0
Rep
61
Posts

Drives: E90 330D M Sport
Join Date: Nov 2018
Location: South East

iTrader: (0)

Whatís the symptoms again? Youíve not got idle smoke?? Itís just the odd blue smoke?
Appreciate 0
      09-11-2019, 02:21 PM   #49
MrSweet1991
Lieutenant
MrSweet1991's Avatar
43
Rep
492
Posts

Drives: BMW E90 330D M Sport
Join Date: Apr 2017
Location: West Midlands

iTrader: (0)

Quote:
Originally Posted by Txs330D View Post
Whatís the symptoms again? Youíve not got idle smoke?? Itís just the odd blue smoke?
Well this is the strange thing, I used to get blue smoke if I let the car idle for long periods or if I left it a few months then done a quick acceleration you'd see the smoke but lately I've not actually been noticing any visible smoke. But the oil loss continues and as we seen on the oil cap test the loo roll got clogged with oil within 2 months.

Be really good to hear the compression test results as well.
Appreciate 0
      09-11-2019, 05:32 PM   #50
Txs330D
Private
0
Rep
61
Posts

Drives: E90 330D M Sport
Join Date: Nov 2018
Location: South East

iTrader: (0)

Reckon youíll build a catch can? My loo roll was soaked too when I checked it. Also had lots of oil in the pipe from it. Iíve gone back to the vortex, but need to check that pipe again. Lots of checks and testing coming up. 👍🏻
Appreciate 0
      09-14-2019, 11:43 AM   #51
MrSweet1991
Lieutenant
MrSweet1991's Avatar
43
Rep
492
Posts

Drives: BMW E90 330D M Sport
Join Date: Apr 2017
Location: West Midlands

iTrader: (0)

Quote:
Originally Posted by Txs330D View Post
Reckon youíll build a catch can? My loo roll was soaked too when I checked it. Also had lots of oil in the pipe from it. Iíve gone back to the vortex, but need to check that pipe again. Lots of checks and testing coming up. 👍🏻
Not too bothered about a catch can after discussing it on here mate, reason being is a vortex breather should be more than enough to stop this oill loss so if its not then I need to start looking at the root cause.

I drove to Blackpool last night, my oil level was around half (500ml from minimum) I went to leave this morning and it was just about on minimum! Like this is seriously weird. 500ml should do me for about 500+ miles

So, focusing in on my drive to Blackpool I drove seriously steady between 50 to 60MPH and got an incredible MPG

18 miles into trip



100 miles into trip



But anyway, I drove really steady all the way and was followed by a relative and he said he seen absolutely no smoke. So, I'm baffled where its all going, the CCV side of things should be at high rpms whereas mine was really low all the way, no smoke (from what I was told) so I'm a bit baffled.
Appreciate 0
      09-14-2019, 03:09 PM   #52
Txs330D
Private
0
Rep
61
Posts

Drives: E90 330D M Sport
Join Date: Nov 2018
Location: South East

iTrader: (0)

Incredible mpg! I drove to parent last night at the national speed limit 😂 and got 44k on the dial. Itís a 70 journey.

Have you checked for oil leaks everywhere possible?

To update you on compression findings - itís a weird one, one that I need help with. I did these with my dad and results were all 380/390psi

Condition of the test were cold and ran through the glow plugs.

However, the first two tests on cylinder three gave me 250/260. I thought F#ck sake. So we checked cylinder 1 again to make sure it hadnít broken. Nope, was fine 390 again. So we went back to cylinder 3. 8-10 cranks I was up at 380.

My thoughts now are do I have a bad ring? And did it draw in oil during the first few cranks to seal it by 120psi??

Will check cylinder 3 again tomorrow after rocker is changed and injectors are back in.

But yeah, the results are there for information.

Hope it helps someone
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 10:01 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST