Blue smoke on extended idle. 2006 4.8is.

[TerminatorX5]

Originally Posted by BigBlack48is

So I have more supporting evidence that BMW fixed their blue smoke problem in their newer models.... Check out the N62 version of the CCV pipes in the newer model from ours ( RealOEM.com * BMW E70 X5 4.8i Crankcase-Ventilation )

It does not have 2 separate pipes that feed blow-by ( oil ) into the intake, only 1 and it's on the top of the intake. Eliminating the bottom hose and connecting the two cylinder heads together....

Anyone have any thoughts?

upto nov 2006 is one part, and then - tripple the price... is the new part interchangable with the old engine? the old part is only showing up for the E60/E70 and the likes... not the E53...

are those engines the same?

[Porschesolutions]

Anyone have any updates to the smoking problem?

Just this am I noticed that my 4.8is is now smoking after long idles. It's 100d here, 80 in the am and I have the OE Synthatic 5w30 BMW oil in my truck.

I have not tried a thicker oil (yet).
I have not checked my CCV's (yet).
I have not tinkered with my vacuum pump either.

Thanks guys, Mark

[Porschesolutions]

Anyone have any updates to the smoking problem?

Just this am I noticed that my 4.8is is now smoking after long idles. It's 100d here, 80 in the am and I have the OE Synthatic 5w30 BMW oil in my truck.

I have not tried a thicker oil (yet).
I have not checked my CCV's (yet).
I have not tinkered with my vacuum pump either.

Thanks guys, Mark

[Doru]

Originally Posted by TerminatorX5

upto nov 2006 is one part, and then - tripple the price... is the new part interchangable with the old engine? the old part is only showing up for the E60/E70 and the likes... not the E53...

are those engines the same?

BMW did some changes for the valve covers, and hence a new CCV.
Here is a link from ECS. This part is a different CCV valve & hose assembly (as opposed to a separate valve, as standard) for an UPDATED valve cover, new p/n 11127563474. The new p/n for the CCV (cyl 1-4) is 11617563476.
Maybe this design stops the blue smoke & oil consumption, but it comes at a rather steep price.
It looks similar to the one posted above for the e70. Here's a shot from ECS:

[Porschesolutions]

I'm beginning to think my mechanic slightly over-filled my engine by 1/2-3/4 quart or so. Will drain and fresh-fill tonight. Bought new CCV's to install just to be sure all basics have been covered.

Mark

[A B Able Truck]

Originally Posted by Doru

BMW did some changes for the valve covers, and hence a new CCV.
Here is a link from ECS. This part is a different CCV valve & hose assembly (as opposed to a separate valve, as standard) for an UPDATED valve cover, new p/n 11127563474. The new p/n for the CCV (cyl 1-4) is 11617563476.
Maybe this design stops the blue smoke & oil consumption, but it comes at a rather steep price.
It looks similar to the one posted above for the e70. Here's a shot from ECS:

It was a recall for extreme cold weather conditions:

http://www.xoutpost.com/attachments/...b-11-01-07.pdf

[Porschesolutions]

Any updates on this thread guys? My slightly thicker Castrol 5w-40 oil and new CCV's did not alleviate my smoking.

M.

[A B Able Truck]

Originally Posted by Porschesolutions

Any updates on this thread guys? My slightly thicker Castrol 5w-40 oil and new CCV's did not alleviate my smoking.
M.

Oil consumption was excessive - It smoked - I was told I needed valve stem seals

My car (didn't pass smog & couldn't renew registration);
2006 BMW 550I – 92,000 miles – V8 (N62TU)
Smokes (white/gray/blue) – failed visual – Smog Report (15 mph – HC ppm Measured 91 – Max. 49)

Symptoms & history;
It used oil (approx. 1 qt. per 2-3 tanks) and I read the history of V8 valve stem problems (internet & local shop research), I was about to have the valve guide/stem seals replaced or drive the car off a cliff. But it didn’t have the classic symptoms of defective valve stem seals/guides. It also ran like a rapped ape (old school for ran great). I’m a heavy truck mechanic with old school car experience (35 years). The plugs were clean and the exhaust smelled funny, also the exhaust dripped clean water no matter how hot or long it ran. I pulled the intake throttle housing and noticed excessive oil. Replaced the (ccv) diaphragms in the valve covers (torn) & read up on the cyclone oil separator (like a Dyson vacuum). Because I wasn’t happy with the oil consumption & residue in the intake, I fabricated a Scotch Brite pad filter with screen for each valve cover vent outlet. As well as a pre-filter for the CCV diaphragm base. This cleaned out the oil residue and has greatly reduced oil consumption while allowing crankcase recirculation. I pulled the spark plugs and stuck a camera down a couple plug holes. Yes, the top of the pistons were loaded with carbon. So I sprayed Sea Foam in each plug hole, followed by a shot of low pressure shop air to help spread it around the piston. I let it sit for an hour or so, then reinstalled the plugs. I topped off the fuel tank with high octane and added 12 oz. of CRC Fuel System Cleaner (part #05063) to the tank. 100 miles later and what a difference – no smoke or water dipping out the exhaust after warm up.

****This note was copied from a BMW Technical Training manual
Note: If the exhaust system produces blue smoke, it is necessary to check whether the engine is also drawing oil into the combustion chamber through the crankcase breather, which suggest that there is a fault in the area of the crankcase breather. A clear sign of a problem is an oiled up clean-air pipe.

****The Variable Intake Manifold acts like a giant catch can. Pull the Intake Throttle and suck out any oil that may have accumulated in the base.

****The valve stem diameter was increase at a production point (you would assume) to remedy the guide problem. I don't believe BMW would use inferior stem seals after this change, if ever. My vehicle has now passed smog test & no longer smokes. I did have to run the proceedure twice before it lowerd the HC levels within specs. I will use the Chevron fuel treatment from this point on. (See attached TSB) It cost me $200 to fix compared to the $4000 > $5000 I was told it would take for a guide/seal replacement.
SI B 13 05 06 & SI B 13 01 07

**** Day 60+/- 1600+ miles later NO smoke or excessive water from tailpipe - It also only used 1/2 qt. oil **** I changed to a 5w-40 synthetic - I'm also adding 12oz. Techron Concentrate Plus every 2-3 tanks to combat the existing carbon (for now).
For those of you seasoned mechanics replacing guides & seals - This worked for me - my vehicle - my situation - but I believe you should diagnose each vehicle on an individual basis - Regardless of BMW guide/valve stem history.

[Porschesolutions]

IS there a vacuum pump that I've heard very briefly mentioned on this forum that needs to be checked for operation? I guess I'll try to pull the throttle body and clean out the intake, see if that helps...see if oil appears (might be hard to do) to be coming from the breather vents.

[A B Able Truck]

Originally Posted by Porschesolutions

IS there a vacuum pump that I've heard very briefly mentioned on this forum that needs to be checked for operation? I guess I'll try to pull the throttle body and clean out the intake, see if that helps...see if oil appears (might be hard to do) to be coming from the breather vents.

The vacuum pump is for your brakes - the recall was for oil contaminating the brake booster. The trottle body is easy but i was told DO NOT disconnect the electrical as you'll need to reprogram (I don't know if that's true) I just put it off to the side with wires connected when I look inside my intake. (15 minutes)