09-20-2015, 10:28 PM | #1 |
Captain
345
Rep 781
Posts |
Diesel Owners - Has your Exhaust gas cooler clogged yet?
Apparently a clogged exhaust gas cooler is common on modern clean diesels. Mine clogged at 9500 miles. From what I read it will happen again - just a matter of time. Let's hear from anyone else who has had this problem. How often does it happen and what cost can we expect out of warranty?
|
09-21-2015, 04:55 AM | #3 |
Private First Class
47
Rep 168
Posts |
Driven 43k no issues yet
|
Appreciate
1
thenewyorker0.00 |
09-21-2015, 09:13 AM | #5 |
#dubspec
6317
Rep 5,200
Posts |
i drove 70k in my last x5d before i had the issue. prior i had an egr sensor go as well. after the cooler i decide to trade for my 35i f15.
__________________
LCI ///F80 M3 Individual Atlantis Metallic / Black Full / Carbon Cermics / 6MT
MPE / M Performance & Carbon package / KW v3 / 20" HRE R101LW / 20" HRE 527s / Michelin PSS / 20% tint / 3d Design / Streckenn splitters / OEM GTS hood / EAS Carbon seatbacks / Carbon RKP sideskirt / Bootmod3 / M Performance Tri color alcantara / AWE S Flow instagram: @ dubsesd |
Appreciate
0
|
09-21-2015, 10:10 AM | #6 |
Lieutenant Colonel
1271
Rep 1,886
Posts |
I am trying to figure out why some go 100k miles and other 10k before getting this clogged. My guess as to what the factors may be:
• Fuel quality • Driving pattern (short trips, long trips) • Driving style • Use of aftermarket piggy back chips What else would cause this component to clog early? BTW, lots of YouTubes on DYI cleaning of this component (on different BMW engines, but same concept). |
Appreciate
1
Flying Ace4982.50 |
09-21-2015, 12:26 PM | #7 | |
Captain
345
Rep 781
Posts |
Quote:
I am wondering if there is a difference in fuel from say Exxon??? I am not using a piggy back tuning chip |
|
Appreciate
0
|
09-21-2015, 03:37 PM | #10 |
#dubspec
6317
Rep 5,200
Posts |
try adding this to each tank....
__________________
LCI ///F80 M3 Individual Atlantis Metallic / Black Full / Carbon Cermics / 6MT
MPE / M Performance & Carbon package / KW v3 / 20" HRE R101LW / 20" HRE 527s / Michelin PSS / 20% tint / 3d Design / Streckenn splitters / OEM GTS hood / EAS Carbon seatbacks / Carbon RKP sideskirt / Bootmod3 / M Performance Tri color alcantara / AWE S Flow instagram: @ dubsesd |
Appreciate
2
Flying Ace4982.50 MrTookies454.00 |
09-21-2015, 06:10 PM | #11 |
Private First Class
30
Rep 126
Posts |
|
Appreciate
0
|
09-21-2015, 08:12 PM | #13 |
Captain
345
Rep 781
Posts |
|
Appreciate
0
|
09-21-2015, 08:14 PM | #14 | |
Captain
345
Rep 781
Posts |
Quote:
|
|
Appreciate
0
|
09-21-2015, 10:58 PM | #16 |
Captain
345
Rep 781
Posts |
|
Appreciate
0
|
09-21-2015, 11:10 PM | #17 | |
Captain
589
Rep 710
Posts |
Quote:
The EGR is not programmed to work full time however, and normally kicks in when the engine is at operating temperature. This is to reduce fouling. I haven't found an additive that improves the condition yet and you'll notice none of the additives mention EGR benefits. Once you get the CEL stating EGR failure, it has to be replaced since nothing can un-clog it. People who will have better luck are those who drive longer distances so exhaust temps will stay high and soot will burn more completely. City driving, stop and go, will accelerate the problem. Gas engines see something similar with carbon fouling in the combustion chamber and exhaust valves, so no engine is immune to modern emissions controls.
__________________
Sold: 2014 X5 xDrive35d MSport
|
|
Appreciate
0
|
09-22-2015, 12:49 AM | #18 |
Lieutenant Colonel
1271
Rep 1,886
Posts |
It is a rare day I nail anything 42pilot. I am going to make a diary entry .
Perhaps in a couple of years this forum will be full of cottage industry fixes for the N57 EGR. After market bypasses are available for older BMW diesel engines, but I am not sure if they would be a good idea (Link). Those who have done it also needed coding to turn off the fact that the EGR was gone. I take it your diesel trucks have fewer sensors and feedback loops and removing the EGR does not produce alerts and errors like it does for these finicky machines. My rudimentary knowledge of all things physics and mechanical is that there is no free lunch. And that the by pass would pass more particulates towards the DPF and the selective catalytic converter, which are both even more expensive to replace. There are a bunch of sprays out in the market as well, like these: I have to admit, I created these sprays long before they existed while playing around with my dad's 300d back in 1981. I used to open up the throttle body and find all kinds of black and green cruddy stuff in there. Then one I day I took it upon myself to to spray some carburetor cleaner in them. The engine reved up just like it does in this video: .....well no exactly. In fact, the first time I did it, I had already done some cleaning and a whole bunch of the spray was sitting there waiting to be sucked in. It reved up so high for about 10-15 seconds I thought the engine was going to blow up. It felt like minutes. But the rpm quickly came back down. Soon I figure out how to do quick burst that increased RPM but not to a level that made me run away from the car the first time I did it. Gosh, the joys of being young and stupid. I also experimented with pure gasoline to clean the gunk. That worked too. In fact, it worked better. At the end, everything was clean, but I wanted the damn diesel to go faster, so then I got the crazy idea to put about 4-5 spoons of gasoline in the diesel tank before a fill up. I used a turkey baster. The car went for 300k miles before we sold it, but in retrospect I am shocked I did not blow up the engine. Note to others....never do to your X5 any of the things I did to that old 300d during my teen years. |
09-22-2015, 11:39 AM | #19 |
Private First Class
25
Rep 137
Posts |
Lol, that's a good story Matt.
Squirting gasoline into a diesel tank, that does sound "young and stupid" Good thing the engine didn't fail. 300K is amazing for any car. Has anyone actually tried any of the EGR cleaner in their X5 diesel yet ? Wonder if it helps. Not sure if we can apply the same procedure to our car as that youtube video. Nowadays these new cars are so much more complicated, where do you even find the throttle linkage? They're all throttle by wire aren't they? |
Appreciate
1
|
09-22-2015, 01:05 PM | #20 |
Lieutenant Colonel
1271
Rep 1,886
Posts |
You read it! True story and young and stupid summarizes it well.
|
Appreciate
0
|
09-22-2015, 04:27 PM | #21 | |
Captain
345
Rep 781
Posts |
Quote:
|
|
Appreciate
0
|
09-22-2015, 08:20 PM | #22 | |
Captain
589
Rep 710
Posts |
Quote:
I hate this design but it's accepted as the best cost effective emissions control. Effectively, it introduces everything you don't want in your engine: 1. increases intake temps by diverting hot exhaust gases (sometimes up to 1400 degrees) into the EGR then the intake - so much for a cold air intake system for a diesel. 2. decreases power by diverting hot exhaust exhaust gases into the intake 3. increases coolant temps by using the coolant to cool the hot exhaust gases Not to mention you have another sensor to deal with. On my pickup, I removed the EGR but left the EGR valve in place which is located on the intake manifold. So, the EGR valve can do whatever it wants but since the EGR is gone (blocked off), nothing happens. Below is what an EGR looks like on my Powerstroke and you can see it cannot be cleaned with sprays or any other methods. It is buried in the engine, as part of the exhaust system, and on the exhaust side of the cylinders (thus negating the use of a spray in the intake).
__________________
Sold: 2014 X5 xDrive35d MSport
Last edited by 42pilot; 09-23-2015 at 11:39 AM.. |
|
Appreciate
3
Jenya B144.00 |
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|