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-   -   Where's my oil going? (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/109841-wheres-my-oil-going.html)

Siggy 02-19-2019 09:13 AM

Where's my oil going?
 
2006 3.0 and I can't seem to keep oil in the thing. I'm guessing we're looking at a loss of 1 qt every 300-400 miles. It doesn't smoke and there are no huge puddles in my parking spot. This time around the low oil indicator did not give me a message, so I'm assuming that sensor is bad. Not a big deal there, but I'm not sure where to look.

No smoke, runs fantastic, no puddles. Is this an oil separator issue?

amancuso 02-19-2019 09:29 AM

Welcome to the M54. It's a design issue with seals inside the engine. You are having the same issue I put up with in a 330i we owned. There are a few things you can do to help reduce consumption but it will not go away. 1) CCV System or 2) M56 valve cover with integrated CCV 3) Catch Can. Others will chime in who are more knowledgeable on the subject. In my case we changed the CCV system which made it more like 1 QT/800 miles but then sold it a few months afterwards as I was tired of the inconvenience.

cn90 02-19-2019 09:38 AM

Search for my posts in that infamous thread "BavarianE39 CCV Mod" using Duralast PCV valve.

You will be glad you do the CCV Mod.

Siggy 02-19-2019 09:55 AM

Thanks guys, from reading on here, I kept seeing the CCV reference, but unfortunately CCV is too short a term to search for so I was having a hard time finding any information about it. What's the CCV stand for? Maybe that will help me with the search feature.

I'll also search for that mod. Thanks for the input. I'll report back once I can get something figured out and working towards a solution.

Qsilver7 02-19-2019 10:00 AM

CCV in regards to engines refers to "crankcase ventilation" or "continuous crankcase ventilation".

cn90 02-19-2019 03:06 PM

Use external search engine such ad Google, you will see it.

Siggy 02-19-2019 05:01 PM

Thanks, I'll try the google thing, plus I found the right posts mentioned up above so I should be good. I knew it was something to do with Crankcase Ventilation but couldn't figure out the first C :) Thanks for that.

I'm debating between doing the mod and just putting a new Oil Separator on it. Will putting the new oil separator on it resolve most of the issue or do I really need the mod to resolve it to a higher degree?

Fifty150hs 02-20-2019 01:19 AM

Quote:

Originally Posted by Siggy (Post 1155602)
Thanks, I'll try the google thing, plus I found the right posts mentioned up above so I should be good. I knew it was something to do with Crankcase Ventilation but couldn't figure out the first C :) Thanks for that.

I'm debating between doing the mod and just putting a new Oil Separator on it. Will putting the new oil separator on it resolve most of the issue or do I really need the mod to resolve it to a higher degree?

You don't need the mod. If your CCV is functioning correctly you shouldn't see more that a quart per thousand miles which is not unusual for the M54. My experience. Others claim much better. The mod looks like "redneck" plumbing to me. But, that's just me.

cn90 02-20-2019 10:49 AM

- I did the stock CCV using BMW parts, cost was about US $150.
What a waste of money, oil consumption was still 1 qt/300 miles.
I wrote the CCV detail below.
Looking back, I should have done the CCV Mod from the get-go!

https://xoutpost.com/bmw-sav-forums/...-overhaul.html

In fact, when I bought another BMW (2004 X3 2.5i), I went straight to the CCV Mod, no regret!



- My CCV Mod is in thread # 164:

https://xoutpost.com/bmw-sav-forums/...oblems-23.html


So, don't waste the money on stock CCV parts, save the money for beer!

StephenVA 02-20-2019 11:26 AM

The 3.0 engine needs regular maintenance especially in the valve cover gasket area, the oil separator (CCV) clean, replace all the hoses and clamps or as some recommend replace the system with an alternative, oil filter housing gasket leak, and the vanos seal right above the Oil Filter Housing. All can leak away and you may not see a drop on the ground until the flood, as there is a steel/aluminum plate under the engine that catches a lot of what drips.

Clean your engine (Dawn Dish detergent will do) and you will see for yourself where all the oil is going. I would recommend doing a cyl leak down test to determine the health of the engine (rings, valves, pistons, etc) or a simple compression test if the first test is way to complicated for your DIY skills. These tests will help you confirm that the oil consumption issues are NOT piston rings and cyl wear issues. At this time/mileage it is time to do all the deferred maintenance that allowed you to buy the X5 cheap.

That last part is a guess on my part as you did not mention mileage or time of ownership. If I am wrong, I apologize in advance.

Gregory891 02-20-2019 12:08 PM

BTW - what type of oil are you using?

For my money, for the CCV, I would buy this -

https://www.germanautosolutions.com/...ct_m54_ccv.php

Russianblue 02-21-2019 11:27 PM

Quote:

Originally Posted by Gregory891 (Post 1155660)
BTW - what type of oil are you using?

For my money, for the CCV, I would buy this -

https://www.germanautosolutions.com/...ct_m54_ccv.php

Jeezus H Roosevelt! That thing is beautiful. Just read all about it. I'd keep my engine cover untrimmed though. Glad that's an option. The biggest drawback for me would be the clean-out but I guess that's with any catch can system really. Also, the price :yikes: Plus I'd probably need to buy the cold weather dipstick. Not sure what I have now. But I like the fact somebody has put this much thought into it! Those guys need to fab a tool to change tension strut bushings on-car. I'd be all over that!

Siggy 02-24-2019 11:15 AM

Went ahead and bit the bullet and replaced the oil separator. Boy, what a task that was. I couldn't find any great documentation about the procedure (I'm sure someone will link to what I looked for now that I've finished it :) ) so it was a lot of trying to figure out what comes off next and trying things. The oil drain hose that goes back to the dipstick filler hose was soft and pliable. I grabbed it and was able to pinch it off with my fingers. I've never seen rubber turn into whatever that had turned into.

Toughest part of the job was trying to figure out what was stopping the manifold from coming off. Turns out it was a large nut (17 or 19mm) holding a bracket to the block under the throttle body. Once I figured that out, it came off easy. I went ahead and took off the fuel rail. Just seemed easier than trying to fight the connections in the back.

If I had to do it over, it would go pretty fast now, but it was a long day. Probably had about 6 hours in it total. I could probably do it in half that if I had to do it again.

It needed to be done for certain. Time will tell if it fixed the issue.

One odd thing I noted. I took off the plastic pan under the front because nothing irritates me more than dropping things and having them go into never never land on the plastic pan. When I did that, I noticed a lot of oil residue all over the roll bar looking part of the frame, right at the front of where the metal pan is bolted. When I looked up at the engine and all around that area, it was all really clean. Not one sign of oil or a leak anywhere on the front, but that bar wasl covered in built-up oil residue. I didn't quite understand what was going on there, but I was happy to see that I couldn't see any signs of any oil leaks on the front of the engine or once the manifold was off, on the driver's side of the engine. It was all actually pretty darn clean.

I'll report back once I get some miles on it to see if it resolved the issue of my disappearing oil.

Russianblue 02-24-2019 12:25 PM

lots of youtube on the CCV replacement.
https://www.youtube.com/watch?v=btggLSedkxc

I wouldn't be surprised if the residue you saw was power steering fluid. it's possibly leaking at the bottom of the reservoir and running down the hose to the steering box. Cheap and easy fix.

and DITTO on the bits in the pan, lol! I find stuff down there every time I take it off!

cn90 02-24-2019 12:52 PM

For my 2006 X5 M54 with 115K. The stock CCV (I wrote a DIY in forum) was a waste of time and money.

The CCV Mod was the ticket, oil consumption problem was solved.

Siggy 02-24-2019 01:52 PM

Quote:

Originally Posted by Russianblue (Post 1155923)
lots of youtube on the CCV replacement.
https://www.youtube.com/watch?v=btggLSedkxc

I wouldn't be surprised if the residue you saw was power steering fluid. it's possibly leaking at the bottom of the reservoir and running down the hose to the steering box. Cheap and easy fix.

and DITTO on the bits in the pan, lol! I find stuff down there every time I take it off!

Yeah, I saw that video. I wanted to take the intake off, not try to work under it. It looks like his didn't have the cold weather kit on it. With the cold weather kit, you almost have to beat the thing in with a dead blow hammer to get it to get it into position and the cold weather insulation on it seems a little thick around the outlet tubes so I couldn't get any of the hoses to snap into place without trimming a little away around the outlet tubes. I would have been in a mental institution if I had tried to get those hoses on while still on the car.

One thing that really impressed me was seeing the tops of the valves when I took the intake off. They looked fantastic. Not one of them had any carbon built up on them. They almost looked like new. That gave me some comfort about my engine in general.

On an interesting tangent, we're all complaining about the oil usage on our e53's, I'm looking at some 7 Series cars and found a thread about BMW losing a class action lawsuit for the excessive consumption on their 7 Series V-8 engines. You have to take you car in and they start the process of monitoring your oil usage. Once you hit a certain number of miles, they look at it again. If it falls in the range of the lawsuit, then they'll replace your entire engine. Only issue is that you have to pay for a percentage of it. Cars with about 100,000 miles seem to have to pay about 40% of the bill, which is working out to be about $6,000.

The oil usage seems to be about 1 qt for every 1000 miles and that qualifies for the engine replacement. Seems like this isn't limited to the e53 3.0 engines we have in our X5's.

ahlem 02-24-2019 02:10 PM

Bavauto has a very good video on the CCV parts replacement on the M54. It made the job a lot easier on my 3.0. I also did the valve cover gasket at the same time and that greatly reduced the oil consumption.


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