Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #111  
Old 05-15-2013, 10:36 PM
bcredliner's Avatar
Premier Member
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 8,105
bcredliner is on a distinguished road
The throttle body should not move at idle. I don't think it will as you would hear it but it would be a check since you can see it. It will start after cleaning just has to crank until cleaner is drawn through--- not a problem. Cleaner will carry any 'stuff' through, no harm done, not necessary to remove throttle body. No need to worry about gunk it won't be that much.
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote

Sponsored Links

  #112  
Old 05-18-2013, 12:30 AM
TerminatorX5's Avatar
Member
 
Join Date: Jul 2006
Location: Stafford, VA & Harrisburg, PA - USA
Posts: 5,736
TerminatorX5 is on a distinguished road
the coil has arrived today, so got the engine cover off and went ahead and replaced it. the coil is OEM (not OE) BOSCH, part # 0 221 504 464, cost me $34.50 delivered. replacement was easy-breasy: cylinder #5 probably the easiest cylinder to work on. the coil housing is dry as dinosaur's bone... i did not pull the spark plug, as it looked ok - besides, i wanted to know, if the coil was a problem...

while i had the engine cover off, i pulled the air tube from the throttle body, and there was some light gunk around the edges of the butterfly. i sprayed it with throttle cleaner, got as much of the gunk off as i could... the engine had hard time running with the tube off but did not stall.

after the cleaner, the engine did not want to start, as you guys had said, but after a few turns, it caught up and fired up... once the initial hiccups settled, the engine purred like a lion cub... i thought that i was having a placebo effect, but when i connected the INPA and watched the cylinder #5 on the live feed, the feed was nice and smooth, like the rest of the cylinders...

while i had the covers off, i checked the CCV covers to make sure that i had them snapped on tight, which i did...

i took the car around the block, it seemed to perform adequately, but i still need to check the car on the start up from cold, and check it on the highway for the pick-up-and-go...

however, the blue smoke on the idle is still there - so, in addition to the CCV membrane that was leaking, i might have a leak somewhere deeper...

i will continue to monitor this issue...
Reply With Quote
  #113  
Old 05-18-2013, 12:36 AM
Member
 
Join Date: Mar 2012
Location: Boise, ID
Posts: 60
X5Boise is on a distinguished road
The blue smoking (N62 V8 X5; 2005; 85k miles) after hot idle (just 20 seconds would make a decent smoke plume) developed over the course of the past year and was getting worse. I ran 10W-30 high mileage oil and it didn't help. Never tried the 10W-40 high mileage Mobil1 oil. Had the CCV valves replaced ($35), and updated valve covers and hoses replaced ($1400), new spark plugs, and nothing helped. The smoking just kept getting worse.

I took to a two independent German repair shops, and a stop to the BMW dealer for another diagnosis opinion, and all pointed to valve seals. Both independent shops mentioned they are sadly seeing more and more of the N62 V8 engined cars with the exact same problem. "Your car have 80k miles?... We had 2 last week, and 5 last month, and recently have been seeing more and more... Poor design--even if the seals were fixed, the problem will eventually come back another 80k miles later... I would not be surprised if a class action lawsuit came out."

Interesting to note that these seasoned independent mechanics that mentioned this--one of them was visibly perturbed that BMW could design such a crappy V8 engine. As a side note, the BMW dealer (my 3rd shop for diagnosis) even mentioned that they saw 4 in the past month with the same issue (vehicles with the N62 engine). By the way, the dealer quoted me $5,000 to fix the valve seals, and for another $2,500, they would seal the engine.

So after some thought, my fix for the blue smoke on idle: sold the N62 engined X5. Fun car to drive and very confident in snow, but poorly designed V8 engine. Just lucked out that one of the mechanics knows the issue and bought the car from me for a modest loss. Enough was enough for me.

Sadly, as I was driving around town today, I noticed a mid-2000's 5 series and a 7 series with some blue smoking after idling at the stop light. Looking back, maybe I should have gotten the I-6 engined X5, which seems to have mostly avoided the blue smoking issue on hot idle, but that ship has sailed.

Last edited by X5Boise; 05-18-2013 at 12:54 AM.
Reply With Quote
  #114  
Old 05-18-2013, 12:40 PM
TerminatorX5's Avatar
Member
 
Join Date: Jul 2006
Location: Stafford, VA & Harrisburg, PA - USA
Posts: 5,736
TerminatorX5 is on a distinguished road
today i started the engine, it revved normal: started at 900 RPMs, down to 700 RPMS and settled at 600... i did not have a chance to wait for a period of time to see if the idle will spike, as it did before, as i had to start driving... it drove off fine, without the little stutters as it used to be for last few weeks...

as a matter of fact, today i was able to take off the traffic light as a 4.8iS should, which i have not been able to do for a long while... i have not tried the highway merge, as the I-95 is having major traffic jams today (Saturday!!!), so I did not venture out...

the blue smoke did not appear today, but i only waited at the traffic light for a limited period of time... it seems that replacing the CCV and using oil that a nad heavier have improved the smoking a little bit...

Is there a write-up on those seals somewhere?
Reply With Quote
  #115  
Old 05-18-2013, 10:50 PM
Member
 
Join Date: Nov 2012
Location: Allentown, PA
Posts: 824
4.8isX5 is on a distinguished road
So new report.. I have less oil usage with the 10-40 then before, added abt a quart after 1kish miles.. Alot better then before and puts it within the highest bmw spec ive seen on here (may or may not be true) of qt every 750.

Also my oil consumption would probably be even less if i was doing 100 mile trips everyday but this is just my 2ndary car now and i only use it after work/no rain days/weekend it comes out of the garage.
__________________
2006 X5 4.8is Fully Loaded

Reply With Quote
  #116  
Old 05-18-2013, 11:01 PM
bcredliner's Avatar
Premier Member
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 8,105
bcredliner is on a distinguished road
Good to hear you are making progress
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #117  
Old 05-19-2013, 03:31 AM
TerminatorX5's Avatar
Member
 
Join Date: Jul 2006
Location: Stafford, VA & Harrisburg, PA - USA
Posts: 5,736
TerminatorX5 is on a distinguished road
it is nice to have the power back - seems that the faulty coil on cylinder #5 caused some idle issues and loss of power on pick-up-and-go situation.. i am still monitoring the situation, as the blue smoke did not resolve, and i am not so sure that the idle and power stumble have been completely resolved - only couple of days of driving might not prove anything...

since i got the spark plugs on my to-do list, i was wondering, the RealOEM shows me this part # 12122158252 for the plug, and this website, shows this part ##
12 12 0 032 134 and
12 12 0 032 135
for the same car... the part number for the coil is the same on both sites...
nevertheless, it is my understanding, that i am looking either at Bosch FR7KPP332 or NGK IZFR6H11 - both are specified as OE(M)...

i was just confused about the part numbers, wonder if the 252 part number from RealOEM is "more" correct than the other part numbers with Bosch and NGK equivalents
Reply With Quote
  #118  
Old 05-22-2013, 01:47 PM
Member
 
Join Date: Aug 2011
Location: Copenhagen
Posts: 62
X5_E53_N62 is on a distinguished road
Quote:
Originally Posted by X5Boise View Post
I took to a two independent German repair shops, and a stop to the BMW dealer for another diagnosis opinion, and all pointed to valve seals. Both independent shops mentioned they are sadly seeing more and more of the N62 V8 engined cars with the exact same problem. "Your car have 80k miles?... We had 2 last week, and 5 last month, and recently have been seeing more and more... Poor design--even if the seals were fixed, the problem will eventually come back another 80k miles later... I would not be surprised if a class action lawsuit came out."

As a side note, the BMW dealer (my 3rd shop for diagnosis) even mentioned that they saw 4 in the past month with the same issue (vehicles with the N62 engine). By the way, the dealer quoted me $5,000 to fix the valve seals, and for another $2,500, they would seal the engine.
This is terrible news for all N62 users out there
Reply With Quote
  #119  
Old 05-22-2013, 01:48 PM
Member
 
Join Date: Aug 2011
Location: Copenhagen
Posts: 62
X5_E53_N62 is on a distinguished road
Quote:
Originally Posted by TerminatorX5 View Post
it is nice to have the power back - seems that the faulty coil on cylinder #5 caused some idle issues and loss of power on pick-up-and-go situation.. i am still monitoring the situation, as the blue smoke did not resolve, and i am not so sure that the idle and power stumble have been completely resolved - only couple of days of driving might not prove anything...
Any progress? Any news to share?
Reply With Quote
  #120  
Old 05-22-2013, 02:02 PM
TerminatorX5's Avatar
Member
 
Join Date: Jul 2006
Location: Stafford, VA & Harrisburg, PA - USA
Posts: 5,736
TerminatorX5 is on a distinguished road
the car still has the power, i am able to overtake the highway merges on relatively cold engine (driving off parking lot, less than 5 minutes later, highway), idle is nice and smooth, no spikes from cold starts, no dips... the coil has resolved that issue, the MAF seems to be OK, as the engine stumbles when i disconnect it while idling...

The blue smoke... it has reduced its manifestation (can't be objective here, did not use any measuring tools), but before, I would be at my traffic light at my neighborhood, and cloud of smoke on take off (not real Formula 1 take off, just pulling from a stop light), now there is no plume of of smoke from the same light... but, there is still cloud in the rearview mirror, if i am idling too long on the highway (I-95 is a parking lot after the DC people finish their workday)...

I suspect that the "reduced" (real or perceived) smoking is due to a slightly heavier oil used, 5W40 instead of 5W30... from what i read, the racing cars use something like 10W60 or whatnot... I am not going to use that by any means, but oil grade might have something to do with reduced smoke...

Also, I have Auto-RX in the engine at this moment, do not know if the presence of that chemical alters the equation or not - could it smoke more or less because of the Auto-RX?

Next thing is, to see if using Liqui Moly full synthetic 5W40 oil is any better then using Castrol... price difference between the two $6 in favor of Castrol when Castrol is on sale, or $30 in favor of Moly when Castrol is at regular price - we are talking about 10 qts of Castrol vs 10L of Moly...
Reply With Quote
Reply

Bookmarks

Tags
4.8is, idle, n62, smoke, valve stem seals

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 08:27 AM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.