Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 6 Series

6 Series
The BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

Reply
 
Thread Tools Display Modes
  #26  
Old 05-19-2013, 04:59 PM
Ruby's Ruby's is offline
Registered User
Location: Uk
 
Join Date: May 2013
Posts: 3
Mein Auto: 650i sport cab
Oil stem seals issue

Hi I have a BMW 650i sport cab and am in London, uk.

We are having the same issues you've mentioned and were hoping that you could tell us what parts we need to sort this please? We can't seem to find anyone that can do this in London other than BMW dealers who are willing to charge a small fortune!

Your help would be greatly appreciated. Thankyou
Reply With Quote
  #27  
Old 05-20-2013, 02:16 AM
dolfan13's Avatar
dolfan13 dolfan13 is offline
Officially Welcomed to the 'Fest
Location: lexington,ky usa
 
Join Date: Jan 2011
Posts: 828
Mein Auto: 545i
Search user name Kief.He did a complete write up with a hundred pics.DIY.If nothing else give this write up to your local Indy BMW shop.Might. Make them feel challenged a guy did it in a weekend in his driveway.
Reply With Quote
  #28  
Old 05-31-2013, 04:07 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

Bump


Sent from BimmerApp mobile app
Reply With Quote
  #29  
Old 06-06-2013, 05:24 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

PM sent


Sent from BimmerApp mobile app
Reply With Quote
  #30  
Old 06-13-2013, 03:30 PM
A B Able Truck's Avatar
A B Able Truck A B Able Truck is offline
Officially Welcomed to the 'Fest
Location: San Diego
 
Join Date: Jun 2013
Posts: 915
Mein Auto: 2006 550I (N62TU) V8
**The valve stem diameter was increase at a production point to remedy the guide problem. I can not believe BMW would continue to use inferior stem seals after this change. I have attached my post related to this carbon buildup issue. My vehicle has passed smog test & no longer smokes. I did have to run the proceedure twice before it lowerd the HC levels within specs. And I will probably do it 1 more time for good measure. It cost me $200 to fix compared to the $4000 > $5000 I was told it would take for a guide/seal replacement **

2006 BMW 550I 92,000 miles V8 (N62TU)
Smokes (white/gray ) failed visual Smog Report (15 mph HC ppm Measured 91 Max. 49)

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 didnt have the classic symptoms of defective valve stem seals/guides. It also ran like a rapped ape (old school for ran great). Im 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 wasnt happy with the oil consumption & residue in the intake, I fabricated a sponge with screen for each valve cover vent outlet. This cleaned out the oil residue and I assume it will reduce oil consumption while allowing crankcase recirculation, but it did not solve the smoke problem. 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. Im in love with the car again
Reply With Quote
  #31  
Old 06-14-2013, 06:44 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

Is there a reason you're posting this in my threads?? If your carb cleaning of the pistons stopped your smoke issue, what does that have to do with the valve stem seals? I have posted pics of the old seals vs the new seals, the difference is clear. There is no amount of carb clean or sponges that will rejuvenate the brittle/warped seals nor will it stop these engines from smoking. I would get your car properly diagnosed by a BMW tech (not a truck mechanic) to verify you no longer have an oil consumption/smoke issue.





Sent from BimmerApp mobile app


Sent from BimmerApp mobile app
Reply With Quote
  #32  
Old 06-14-2013, 07:52 AM
A B Able Truck's Avatar
A B Able Truck A B Able Truck is offline
Officially Welcomed to the 'Fest
Location: San Diego
 
Join Date: Jun 2013
Posts: 915
Mein Auto: 2006 550I (N62TU) V8
Quote:
Originally Posted by bmwoem1 View Post
Is there a reason you're posting this in my threads?? If your carb cleaning of the pistons stopped your smoke issue, what does that have to do with the valve stem seals? I have posted pics of the old seals vs the new seals, the difference is clear. There is no amount of carb clean or sponges that will rejuvenate the brittle/warped seals nor will it stop these engines from smoking. I would get your car properly diagnosed by a BMW tech (not a truck mechanic) to verify you no longer have an oil consumption/smoke issue. Sent from BimmerApp mobile app
Yes, don't you think you should have your customers try spending $100 +/- before spending thousands? (Give them the option) The picture you posted show new versus old - there's going to be a difference in appearance - they don't indicate an old brittle/warped/torn seal (but I didn't zoom in). The obvious is oil in the intake - you should solve that problem before you yell there's a big dollar issue. I have cars with a 100,000 miles +, do you really think BMW wants a bad reputation by using inferior parts? I had extended warranty and took my car to a local BMW dealer with no success on a number of issues. One time the tech that returned missing hardware after completing a job delivered parts for NAPA 1 year prior. Just because you wear the badge doesn't mean you deserve it (in general terms). By the way, over my 35 yrs. I've worked for several car, truck (dealership/independent shops) and a motorhome dealership before starting my own business. I've also witnessed down right thievery at a few of them with no regard for the customers wallet. You're only good if you're open minded and honest.
Reply With Quote
  #33  
Old 06-14-2013, 08:50 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

I've taken the intake manifold off of about 200 different N62/N62tu's.... Every single one of them had some oil in them (even the ones that did not smoke). The reason this small amount of oil is a non-issue is because these valvetronic engines only have 50 millibar of vacuum at a hot idle. Given the shape of the DISA manifold and the lack of vacuum, this oil will not make its way into the combustion chamber. So if I charged people $100 to remove this oil, it would be $100 wasted.... That is honesty


Sent from BimmerApp mobile app
Reply With Quote
  #34  
Old 06-14-2013, 09:14 AM
A B Able Truck's Avatar
A B Able Truck A B Able Truck is offline
Officially Welcomed to the 'Fest
Location: San Diego
 
Join Date: Jun 2013
Posts: 915
Mein Auto: 2006 550I (N62TU) V8
Fact;
- Because the CCV (PVC) system is a poor design, it's allowing oil to be sucked into the intake.
- Unless you do a top end clean (or fuel additive) on a regular basis, this oil (over time) will accumulate in the combustion chamber.
- Because these engines are designed to compensate (to a point) for minor engine malfunctions (As I experienced with torn CCV diaphragms) This oil intake will be increased.
- A camera thru the spark plug holes to verify carbon buildup is not that time consuming.
- As a preventative measure, a customer (on occasion) can add a fuel additive when they fill up.

You may want to sound honest - but you are defiantly closed minded!
Reply With Quote
  #35  
Old 06-14-2013, 10:05 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

Given your statements, you obviously don't have a good understanding of this issue.... I don't have time to keep going back and forth. As for being close minded... Just do a search on me and you'll find 50 people who think otherwise. For anyone who actually wants their car fixed, continue to PM me and I'll continue to help as I always have





Sent from BimmerApp mobile app


Sent from BimmerApp mobile app
Reply With Quote
  #36  
Old 06-14-2013, 10:17 AM
A B Able Truck's Avatar
A B Able Truck A B Able Truck is offline
Officially Welcomed to the 'Fest
Location: San Diego
 
Join Date: Jun 2013
Posts: 915
Mein Auto: 2006 550I (N62TU) V8
I'm going to drive my clean burning 550I to the coast and get some lunch with the money I saved - Thanks for the exchange Billy!
Reply With Quote
  #37  
Old 06-14-2013, 10:23 AM
dolfan13's Avatar
dolfan13 dolfan13 is offline
Officially Welcomed to the 'Fest
Location: lexington,ky usa
 
Join Date: Jan 2011
Posts: 828
Mein Auto: 545i
I did nothing but change my valve seals and the smoke after idle went away.Didnt even bother with little oil in intake.Mine after 1min at light would smoke like a Arkansas bug fog machine!
Reply With Quote
  #38  
Old 06-14-2013, 03:07 PM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

http://www.bimmerfest.com/forums/sho...09#post7554509

This guy has been smoked all day in the 7 series forum


Sent from BimmerApp mobile app
Reply With Quote
  #39  
Old 06-14-2013, 04:20 PM
A B Able Truck's Avatar
A B Able Truck A B Able Truck is offline
Officially Welcomed to the 'Fest
Location: San Diego
 
Join Date: Jun 2013
Posts: 915
Mein Auto: 2006 550I (N62TU) V8
Go check it out - you decide who smoked who? I feel like I'm replying to a 12 year old at his level -Sorry
Reply With Quote
  #40  
Old 06-14-2013, 06:12 PM
mfelsoci mfelsoci is offline
Registered User
Location: cleveland ohio
 
Join Date: May 2012
Posts: 90
Mein Auto: 2004 645ci
My check engine light is on and I had the code read (only at autozone) which pointed toward a secondary air issue. I have not taken my car to the dealership at this time because the car runs flawlessly and there is no missing,idiling,running or firing issues. 1) am I jeopardizing anything on my 6 for not having the code reset or the secondary air system repaired/cleaned? 2) Is there a way to reset the code without tearing into the secondary air system? 3)Is secondary air system repairs expensive? The car was stored over the winter and the check engine light came on after the car was stored. The car runs perfect and I believe if I had the fault cleared that the check engine light would not come back. Any information would be helpful. I drive the car sparingly (4-5 thousand miles a year) but dont want to risk causing any damage
__________________

CURRENT:
BMW 323i
BMW 645ci
Lexus SC 300
Ford F150
Dodge Ram
Reply With Quote
  #41  
Old 06-15-2013, 03:34 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

If the fault code returns, you may have clogged secondary air ports. How many miles on the car? The cause of the clogged ports is due to leaking valve stem seals. So if you do not fix the cause, the ports will clog up again in time. I have seen damage to the catalytic converters if the car is driven long enough with leaking valve stem seals.


Sent from BimmerApp mobile app
Reply With Quote
  #42  
Old 06-16-2013, 03:03 AM
mfelsoci mfelsoci is offline
Registered User
Location: cleveland ohio
 
Join Date: May 2012
Posts: 90
Mein Auto: 2004 645ci
I also have the increased emissions up on the I-drive panel. Is there a direct relationship between the increased emissions and the secondary air system being plugged? The car has 61,000 miles on it. The part that has me confused is that the car is running great and there is no indication of any hesitation,missing, idiling issues. Is there anyway to reset the service engine and increased emissions without a trip to the dealer? I unplugged the battery and let it sit for awhile but this did not remove the alarms
__________________

CURRENT:
BMW 323i
BMW 645ci
Lexus SC 300
Ford F150
Dodge Ram

Last edited by mfelsoci; 06-16-2013 at 03:07 AM.
Reply With Quote
  #43  
Old 06-16-2013, 10:09 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

The "increased emissions" could be anything, you would have to get the faults read out. Disconnecting the battery will not reset the codes. The secondary air issues will not cause any noticeable driveability concerns.


Sent from BimmerApp mobile app
Reply With Quote
  #44  
Old 06-16-2013, 10:37 AM
Ellicit Ellicit is offline
Officially Welcomed to the 'Fest
Location: NY
 
Join Date: Jun 2006
Posts: 101
Mein Auto: 528i
Great! I'm in Floral Park, PM me your contact.

I don't have this problem, but if I do will CPO cover this?
__________________
** Removed - Too much for a signature - Tim330i **

e36 328i - Sold.
e60 530 SMG Sold.
e63 650i weekends
e39 528iA DD
Reply With Quote
  #45  
Old 06-16-2013, 10:56 AM
Rahulk Rahulk is offline
Officially Welcomed to the 'Fest
Location: Orlando ,Fl
 
Join Date: Jan 2013
Posts: 180
Mein Auto: E53 N62; E90 N52
Valve stem seals done for $2500!

I'm one of the few who has done the valve seal job on my own... This guy is offering a great deal... I can verify that seals harden... If this guy was close I would have paid 2,500 in a heart beat. Gotta tell you something. Car drives 100 times better with new seals... Heck the only other engine issue left would be the engine mount gasket leak to take care off....


Sent from BimmerApp mobile app
Reply With Quote
  #46  
Old 06-16-2013, 11:21 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

PM sent


Sent from BimmerApp mobile app
Reply With Quote
  #47  
Old 06-16-2013, 12:23 PM
GetMeABeer's Avatar
GetMeABeer GetMeABeer is offline
Officially Welcomed to the 'Fest
Location: Manhattan
 
Join Date: Jan 2013
Posts: 170
Mein Auto: 05 645Ci
Hey A B, I just figured out how to save even more money than you on my stem job, I just close the windows and turn up the radio.
__________________

Last edited by GetMeABeer; 06-16-2013 at 01:07 PM. Reason: Edited for: Beer helps too
Reply With Quote
  #48  
Old 06-26-2013, 09:18 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

Bump


Sent from BimmerApp mobile app
Reply With Quote
  #49  
Old 07-14-2013, 04:33 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

Here's a couple pics of the latest valve stem seal job. It's 2004 545i w/ 162k miles. In the second pic you can see the obvious difference between the old and new seal.

Click image for larger version

Name:	ImageUploadedByBimmerApp1373801574.566088.jpg
Views:	246
Size:	181.6 KB
ID:	386577


Sent from BimmerApp mobile app


Sent from BimmerApp mobile app

Last edited by bmwoem1; 12-16-2013 at 05:04 PM.
Reply With Quote
  #50  
Old 07-29-2013, 02:34 PM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 594
Mein Auto: X3
Valve stem seals done for $2500!

Here are some pics of the latest job, 2006 750li with approx 100k miles. This engine was in pretty good shape, except for the valve stem seals of course













Sent from BimmerApp mobile app


Sent from BimmerApp mobile app
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 6 Series
Today's Posts Search
Thread Tools
Display Modes

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 On



Forum Jump


All times are GMT -7. The time now is 10:02 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms