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BMW Diesel Owners / Enthusiasts
Do you own a diesel powered BMW? Maybe a 335d or a BMW x35d? Come and talk about what makes your car great!

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  #1  
Old 11-21-2012, 05:09 PM
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finnbmw finnbmw is offline
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Pictures of EGR valve after 33,500 miles

I had the emission recall performed today on our 2010 X5 diesel. I asked the technician to take a few pictures of the EGR valve as I've been reading about the soot build-up in the old style valve and was interested to see how much was in mine after 33,500 mostly highway miles. I thought you might be interested as well so here are the pictures:
Attached Images
File Type: jpg 2010 X5d - EGR Valve at 33,500 miles I.jpg (91.6 KB, 4467 views)
File Type: jpg 2010 X5d - EGR Valve at 33,500 miles II.jpg (95.4 KB, 5085 views)
File Type: jpg 2010 X5d - EGR Valve at 33,500 miles III.jpg (99.4 KB, 3596 views)
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  #2  
Old 11-21-2012, 05:57 PM
DnA Diesel DnA Diesel is offline
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Mein Auto: GLK250BT, 335d, Jetta TDI
That doesn't look so bad, Finn...you should have seen my TDI's EGR valve before I cleaned it...

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  #3  
Old 11-25-2012, 05:06 AM
TDIwyse TDIwyse is offline
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Thanks for posting those pics.
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  #4  
Old 11-25-2012, 01:34 PM
F32Fleet F32Fleet is offline
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Mein Auto: 435i, 335d sold.
Big benefit of ULSD
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  #5  
Old 11-26-2012, 06:18 AM
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finnbmw finnbmw is offline
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Dna Diesel, does the EGR valve need to be cleaned on a regular basis?
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  #6  
Old 11-26-2012, 06:37 AM
DnA Diesel DnA Diesel is offline
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Mein Auto: GLK250BT, 335d, Jetta TDI
Not now, finnbmw. ULSD has significantly reduced soot and I have also adjusted my TDI's EGR duty cycle, particularly since I travel a lot on highway, and NOx production is greatly reduced at moderate-speed part throttle travel. The picture on the right was at about 100,000km when I cleaned the valve and the intake -- VWs (ALH code TDIs 99.5-2003) were well known for gunked up EGR valves). I have about 220,000km on the Jetta and the EGR and intake are almost as clean now as when I cleaned them back at 100,000.

I haven't heard much of E90 D's getting too dirty...the E70s (X5) have a different EGR set-up that I hear has had issues in the past.

Regards
D.
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  #7  
Old 11-26-2012, 06:38 AM
Yborg Yborg is online now
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what a pain in the a$$ the EGR systems can be..i have no experience with car egr's but i disabled them in my Volvo semi truck and what a beautiful difference it makes! i am thinking about getting a diesel powered vehicle and one of the first things i will do to it disable the EGR! We are not gona talk about the legality here ))..
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  #8  
Old 11-26-2012, 04:44 PM
TDIwyse TDIwyse is offline
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Anyone borescope their intake to visually check the carbon buildup?
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  #9  
Old 12-03-2012, 04:45 AM
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Axel61 Axel61 is offline
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Amigos this what I wrote in the other forum:

Amigos I can attest to this supposedly carbon build up this last saturday as I was going to the 1/2 mile race I had the ENGINE light come up and man i almost SHEIT on myself. I called my mechanic as he was going to race my car for me since I have a broken hand. He told that that occurs also with the JBD on some of his clients. and informed me not to worry I stopped turn car off and back on and it was GONE!! OK I deided later to press on it and GUESS WHAT? Not only the ENGINE light come but also the damn ESE light F'me now Im pissed and scared. I stopped and turned off and back on AGAIN! and the engine light gone but not the SES.

The car was running quite VAGUELY but I realized the the day before I had put on 3 ounces of Amsoil DIESEL injector cleaner and 3ounces of AMSOIL CETANE Booster, I guess all the SOOT was coming off since it had been a month since I had stopped using DIESEL Injector Cleaner. Anyway, my friend drove the 1/2 mile race and he told he clocked 150 mph at the end of the track but forgot to clock at the 1/2 marker(he did it twice) he was VERY IMpressed with the DIESEL, he had had many gassers during his youth and was ALL smiles with the DIESEL. My car clocked the first time 120 mph which I found very disturbing since I had a better program come to find out the systme was not calibrated weel and many competirors were complaining.

Anyway, once I took the car and drove to my uncles house I noticed the car was eager and loose, i looked at my girlfriend and told her "Hey something is wrong with the car, she REPLIED by saying The car is responding better!!" I drove the car to the 1/2 mile race went to my uncles ate and got drunk partied at nite, next day drove to the other extreme of the island and went to see my friends game and drank and ate an came home and looked at the tnak and guess what? 1/2 tank on 243 miles, PRICELES!!!! Now my girlfriend wants a DIESEL!!!

P.S. The SES light went off the next day at my uncles.
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  #10  
Old 05-05-2014, 10:14 PM
DieselRacer DieselRacer is offline
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Mein Auto: 2011 335D M sport...
Anyone make a EGR delete kit, and can it be tuned out...so no engine lights...
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  #11  
Old 05-06-2014, 04:46 PM
robster10 robster10 is offline
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Mein Auto: 2009 BMW 335d
SES light fix.

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  #12  
Old 05-08-2014, 05:09 PM
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Quote:
Originally Posted by Axel61 View Post
Amigos this what I wrote in the other forum:

Amigos I can attest to this supposedly carbon build up this last saturday as I was going to the 1/2 mile race I had the ENGINE light come up and man i almost SHEIT on myself. I called my mechanic as he was going to race my car for me since I have a broken hand. He told that that occurs also with the JBD on some of his clients. and informed me not to worry I stopped turn car off and back on and it was GONE!! OK I deided later to press on it and GUESS WHAT? Not only the ENGINE light come but also the damn ESE light F'me now Im pissed and scared. I stopped and turned off and back on AGAIN! and the engine light gone but not the SES.

The car was running quite VAGUELY but I realized the the day before I had put on 3 ounces of Amsoil DIESEL injector cleaner and 3ounces of AMSOIL CETANE Booster, I guess all the SOOT was coming off since it had been a month since I had stopped using DIESEL Injector Cleaner. Anyway, my friend drove the 1/2 mile race and he told he clocked 150 mph at the end of the track but forgot to clock at the 1/2 marker(he did it twice) he was VERY IMpressed with the DIESEL, he had had many gassers during his youth and was ALL smiles with the DIESEL. My car clocked the first time 120 mph which I found very disturbing since I had a better program come to find out the systme was not calibrated weel and many competirors were complaining.

Anyway, once I took the car and drove to my uncles house I noticed the car was eager and loose, i looked at my girlfriend and told her "Hey something is wrong with the car, she REPLIED by saying The car is responding better!!" I drove the car to the 1/2 mile race went to my uncles ate and got drunk partied at nite, next day drove to the other extreme of the island and went to see my friends game and drank and ate an came home and looked at the tnak and guess what? 1/2 tank on 243 miles, PRICELES!!!! Now my girlfriend wants a DIESEL!!!

P.S. The SES light went off the next day at my uncles.
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Axel,

What did you ever do about your CBU????
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  #13  
Old 05-08-2014, 05:18 PM
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Axel61 Axel61 is offline
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UPDATED the Ecu with more aggressive tune by Renntech

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  #14  
Old 05-08-2014, 10:46 PM
DieselRacer DieselRacer is offline
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Quote:
Originally Posted by Axel61 View Post
UPDATED the Ecu with more aggressive tune by Renntech

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Awesome fix for CBU
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  #15  
Old 05-09-2014, 04:34 AM
sirbikes sirbikes is offline
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Mein Auto: 2011 X5 35d
So what you are saying is ... put some injector cleaner in and really flog it, and then it will run better?

Quote:
Originally Posted by Axel61 View Post
Amigos this what I wrote in the other forum:

Amigos I can attest to this supposedly carbon build up this last saturday as I was going to the 1/2 mile race I had the ENGINE light come up and man i almost SHEIT on myself. I called my mechanic as he was going to race my car for me since I have a broken hand. He told that that occurs also with the JBD on some of his clients. and informed me not to worry I stopped turn car off and back on and it was GONE!! OK I deided later to press on it and GUESS WHAT? Not only the ENGINE light come but also the damn ESE light F'me now Im pissed and scared. I stopped and turned off and back on AGAIN! and the engine light gone but not the SES.

The car was running quite VAGUELY but I realized the the day before I had put on 3 ounces of Amsoil DIESEL injector cleaner and 3ounces of AMSOIL CETANE Booster, I guess all the SOOT was coming off since it had been a month since I had stopped using DIESEL Injector Cleaner. Anyway, my friend drove the 1/2 mile race and he told he clocked 150 mph at the end of the track but forgot to clock at the 1/2 marker(he did it twice) he was VERY IMpressed with the DIESEL, he had had many gassers during his youth and was ALL smiles with the DIESEL. My car clocked the first time 120 mph which I found very disturbing since I had a better program come to find out the systme was not calibrated weel and many competirors were complaining.

Anyway, once I took the car and drove to my uncles house I noticed the car was eager and loose, i looked at my girlfriend and told her "Hey something is wrong with the car, she REPLIED by saying The car is responding better!!" I drove the car to the 1/2 mile race went to my uncles ate and got drunk partied at nite, next day drove to the other extreme of the island and went to see my friends game and drank and ate an came home and looked at the tnak and guess what? 1/2 tank on 243 miles, PRICELES!!!! Now my girlfriend wants a DIESEL!!!

P.S. The SES light went off the next day at my uncles.
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  #16  
Old 05-09-2014, 06:00 AM
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Axel61 Axel61 is offline
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It might or might not work. It might go limp mode or a code if you hv never used additives. My case as u read a one time thing im at 42k so far so good but does not exempt me the intake issues

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  #17  
Old 10-30-2014, 03:01 PM
Xerix Xerix is offline
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Question for you all.

Is the EGR valve attached at the front right of the engine to the air intake manifold?

I have a Throttle Valve Actuator code that is being thrown and Im at 109,000KM. So I'm going to clean out the intake and EGR with carb cleaner next weekend prolly. I just wanted to make sure Im going to clean the right parts.

Also, given that the glow plugs are right under the air intake, should I replace those as well while im at it?

Thanks.
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  #18  
Old 09-04-2015, 07:21 PM
Xerix Xerix is offline
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Ok, I know its old, but I will answer my own question and provide some info for someone else.

Yes. It is at the front right of the engine. Also, I did not replace the glow plugs as posts I read said they should not need replacing.

That being said, it took me 2 days to get all the CBU out of the intake, EGR, and Throttle. It was a real bitch to clean out the intake and think I will use a proper wash table and just submerge the damn thing in carb cleaner next time.

The Check Engine Light came back on with the same codes after 15 minutes of driving on the test drive after re-assembling. And I did clear all codes before the test drive ;-).

Been driving with the Check Engine light ever since and its still running fine. Its possible the Throttle Actuator and EGR actually have a problem with them and might need replacing.

Only other thing I can think of is that there is a sensor on the Air Intake at the back near the firewall which may be malfunctioning. Unfortunately I just don't know what that sensor is for.

FYI: Injector cleaner will not clean out the CBU from the EGR or Air Intake.
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  #19  
Old 09-07-2015, 06:54 AM
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Flyingman Flyingman is offline
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Quote:
Originally Posted by Xerix View Post
Ok, I know its old, but I will answer my own question and provide some info for someone else.

Yes. It is at the front right of the engine. Also, I did not replace the glow plugs as posts I read said they should not need replacing.

That being said, it took me 2 days to get all the CBU out of the intake, EGR, and Throttle. It was a real bitch to clean out the intake and think I will use a proper wash table and just submerge the damn thing in carb cleaner next time.

The Check Engine Light came back on with the same codes after 15 minutes of driving on the test drive after re-assembling. And I did clear all codes before the test drive ;-).

Been driving with the Check Engine light ever since and its still running fine. Its possible the Throttle Actuator and EGR actually have a problem with them and might need replacing.

Only other thing I can think of is that there is a sensor on the Air Intake at the back near the firewall which may be malfunctioning. Unfortunately I just don't know what that sensor is for.

FYI: Injector cleaner will not clean out the CBU from the EGR or Air Intake.


Xerix, sorry I did not see this earlier. CBU on our diesels really needs to be done with walnut blast and the proper set of hand wands and nozzles because all of the intricate spaces in the intake.

A walnut blast should cost about $800- $1,000 if done by a proper Indy that has experienced with the 335D. We have swirl flaps, etc that make access even more difficult to get to.

Early on the entire intake head was removed and being sent off to specialist shops to be cleaned up. Time and money!

With your amount of miles and evidence of CBU you should consider having it done right.
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  #20  
Old 09-08-2015, 07:11 PM
Xerix Xerix is offline
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I don't know much about walnut blasting, and the limited amount I did now was telling me to keep that away from the plastic intake because it would eat right through it. That's why I went the chemical route and washed it out with carb cleaner and nylon brushes.

I think you might be referring to the actual intake ports perhaps? I looked at those when I took off the intake, but couldn't see the valves or anything so I didn't touch them. Im guessing I should have bought a scope and took a closer look when I had it all apart.

Also, I know it may not have been the professional way of cleaning it all out, but I got it to its original shiny luster, that's why it took me 2 days ;-) Always next time though!

Thanks for the info.
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  #21  
Old 09-09-2015, 05:52 AM
Hoooper Hoooper is offline
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Cleaning the cbu in the intake is a good start but its really only the first 25% of the job. The intake runners and valves still have to be cleaned. Assuming that your codes are being caused by cbu in the first place the codes will stick around until the rest is cleaned.
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  #22  
Old 09-09-2015, 02:21 PM
lpcapital lpcapital is offline
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The throttle actuator does fry. Reason is that oil from the awful CCV design BMW made gets in the electrical module and shorts it.

When it happens other than codes you also get a more abrupt than usual shutdown (similar to a real diesel). With the help of a friend you can check if the throttle operates at shutdown: just observe the movement of the spring while you turn the engine off.

The sensor in the back of intake that you talk about is the manifold absolute pressure sensor: that too cakes up with soot and oil and craps out.

Regarding the glow plugs they do crap out when the thermostat fails and doesn't let the engine stay warm. However in our version of the engine it seems that the glow plug control module is more likely to burn before the plugs do.
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  #23  
Old 10-08-2015, 05:10 PM
Xerix Xerix is offline
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I completely agree that the intake is only a part of the cleaning job. I wish I could have done the ports as well on the block.

Also, I cleaned the absolute pressure sensor on the back of the intake and it didn't really do anything. Also, it was only marginally dirty from the looks of it and was not clogged.

I will be taking a look into a code 4873 the computer is showing me as well now. I think it might be vacuum related even though I already replaced the red boost pipe seals.
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