|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
I need your help - Carbon Build Up
|
|
07-09-2013, 12:35 PM | #45 | |
Jumping Jack Flash
322
Rep 1,692
Posts
Drives: 2021 X3 M40i
Join Date: Nov 2012
Location: California (east of Sacramento)
|
Quote:
"We do offer Walnut blasting, but that system uses a specific tool for the cylinder head orifice of the 335i, not sure if that will fit the d’s intake port... and I’m not sure how much of a benefit it would have on the ‘d model. It could in theory, but are people experiencing clogged intakes on the 335d? We did get three other inquires this past week!… This question must be up on the forum?
__________________
2021 X3 M40i: M Sport Differential, Adaptive M Suspension.
Previous BMWs: 1971 BMW 2002, 1973 BMW R75/5, and 2011 BMW 335d Previous Other Vehicles: '67 Cougar, '70 911e, '86 Jetta Diesel, '05 and '12 Foresters, et al. |
|
Appreciate
0
|
07-09-2013, 01:05 PM | #46 |
Colonel
213
Rep 2,210
Posts |
It will take some shops getting their feet wet for the walnut blasting on the D to take off. If you look on REALOEM (and I confirmed this when I had the manifold off) there are two sets of intake ports, the top set of ports actually pass through the valve cover which means that cleaning down into the ports requires removing the valve cover. The second (lower, larger) set of ports curves into the head and out of sight, from what I saw these curve and travel in the head until they are underneath the smaller ports. Its certainly more difficult and involved than a standard cleaning for say a mini or any other the other gas engines Ive seen so maybe it takes a little more time, but I wouldnt say its really any more difficult, just more time consuming.
|
Appreciate
0
|
07-09-2013, 01:43 PM | #47 |
First Lieutenant
24
Rep 318
Posts |
I am told by 7 different independent shops and two BMW dealerships here that walnut blasting will not resolve this issue. As Hoooper noted the intake ports are set up is different from the gas engine and are "tucked away" require dismantling. The level of effort to do so automatically explodes the cost to the labor.
Also, I am told that carbon buildup in Diesels are much grimier. As mentioned in my post, I am up to 23 shops in the DMV who will not touch my engine. |
Appreciate
0
|
07-09-2013, 02:11 PM | #48 | |
Colonel
213
Rep 2,210
Posts |
Quote:
|
|
Appreciate
0
|
07-09-2013, 03:06 PM | #49 |
First Lieutenant
24
Rep 318
Posts |
I haven't read or seen a youtube of one single diesel walnut blasting. Anyone have any experience?
Also, and probably more importantly, anyone have suggestions on proper maintenance once a cleaning has been done? |
Appreciate
0
|
07-09-2013, 03:44 PM | #50 |
Colonel
213
Rep 2,210
Posts |
|
Appreciate
0
|
07-09-2013, 03:55 PM | #51 |
Captain
157
Rep 716
Posts |
If you think that is the fault of the emission control systems and that the car, as is, does not meet or pass these requirements. Maybe one option is to contact CARB or EPA and BWM on this. The emission system is warranty for 80K miles.
If there is enough complaint on file, maybe BMW will address the problem finally instead of offering to pay half of cost on a case by case basis. |
Appreciate
0
|
07-09-2013, 04:02 PM | #52 |
Colonel
213
Rep 2,210
Posts |
but there is nothing wrong with the system, its working fine and not causing any excess smog. CARB and EPA would both probably cheer BMW for this since it will 1) cause some people to shy away from diesel because of a bad experience (the EPA and especially CARB have a strong dislike for diesel) and 2) cause these cars to not last as long so when these cars are dumped at the junkyard it will cause more old cars to be replaced with newer emissions cars.
Has anyone tried venting the PCV to atmosphere in this car, even for short term? All of my care for emissions goes right out the window when it causes my engine to have a shorter life so if venting to atmosphere works I would be totally on board. I have mixed experiences with that working on newer cars though. |
Appreciate
0
|
07-10-2013, 12:46 PM | #53 |
New Member
0
Rep 9
Posts |
To add another data point. 2011 335d with 47.5k miles that I've owned for around 10k miles. Sent car to dealer for a rough idle, belt squeal and reduced mpg. They fixed the belt squeal and the tech said he could feel the rough idle as well. They sent a request off to BMWNA who authorized the head removal. SA just called indicating they found a good amount of carbon in the head and were going to send the head to a shop for cleaning and resurfacing.
I'm pleased that they made the decision to get into it as I'm looking at the end of original warranty and into the CPO shortly. |
Appreciate
0
|
07-10-2013, 02:48 PM | #54 | |
Major
240
Rep 1,288
Posts |
Quote:
|
|
Appreciate
0
|
07-12-2013, 11:45 AM | #56 |
Jumping Jack Flash
322
Rep 1,692
Posts
Drives: 2021 X3 M40i
Join Date: Nov 2012
Location: California (east of Sacramento)
|
That has been my plan all along, but I didn't anticipate having trouble finding someone to do it at a reasonable cost, reasonable cost being south of US$1K.
__________________
2021 X3 M40i: M Sport Differential, Adaptive M Suspension.
Previous BMWs: 1971 BMW 2002, 1973 BMW R75/5, and 2011 BMW 335d Previous Other Vehicles: '67 Cougar, '70 911e, '86 Jetta Diesel, '05 and '12 Foresters, et al. |
Appreciate
0
|
07-12-2013, 01:21 PM | #58 |
Lieutenant Colonel
69
Rep 1,766
Posts |
That's my plan once I reach the big 50!
__________________
JBD @ 100% | KW ST Coilovers | M3 rep. front bumper | 888Concepts AE Upgrade | GP Thunder 7500k fogs | Cyba 4" carbon tips | BSW Stage 1 | APEX ARC-8 W/ Michelin PSS | Ziza LED interior | Weisslicht LED side lenses | Sprint Booster | Euro side mirrors | M-Sport semi-conversion | Coded | LOTS of carbon fiber
|
Appreciate
0
|
07-12-2013, 04:27 PM | #59 |
Captain
143
Rep 634
Posts |
That's the problem. Lots of info walnut blasting spark ignition engines, have yet to see a single reference for the diesel. It's always a tear down with head removal. That will never be under a $grand. The convoluted intake paths of the diesel seem to be an issue for 'simple' cleaning.
|
Appreciate
0
|
07-26-2013, 07:18 PM | #60 | |
New Member
0
Rep 9
Posts |
Quote:
So we are darting around now in the f30 328xi sport. In spite of it's overboosted steering and buzzy powerplant, it's growing on me. |
|
Appreciate
0
|
07-27-2013, 10:56 AM | #61 |
Retired TDI guy
4
Rep 89
Posts
Drives: 2009 335D
Join Date: Jul 2013
Location: Montreal
|
1st post - my father leased 1 of those last year - it drives quite well - i was seeing about 35 mpg at 80mph when it was nearly brand new which was impressive. Super is much more expensive than diesel up here, so I still hold the advantage for cost per mile/km
|
Appreciate
0
|
07-30-2013, 09:42 PM | #62 |
New Member
0
Rep 9
Posts |
Picked up the D today after being at the dealer most of the month. Steering feels almost too heavy coming out of the F30. Alarming at first, my wife said something was wrong with the steering on her first drive. It does feel under boosted now. We'll see how it goes.
Speaking of how it goes, the oil pedal is back with all the torque. Nice. It has a clean head and intake, new #5 injector and new DME. Wondering... will it last? will the new DME and recent software reduce the future problems? Is our typical urban drive pattern going to reduce it to a carbon blob? We shall see. |
Appreciate
0
|
07-31-2013, 12:06 AM | #63 |
Lieutenant Colonel
69
Rep 1,766
Posts |
That's how a real car is suppose to feel my friend. It's all about being connected to the road!
__________________
JBD @ 100% | KW ST Coilovers | M3 rep. front bumper | 888Concepts AE Upgrade | GP Thunder 7500k fogs | Cyba 4" carbon tips | BSW Stage 1 | APEX ARC-8 W/ Michelin PSS | Ziza LED interior | Weisslicht LED side lenses | Sprint Booster | Euro side mirrors | M-Sport semi-conversion | Coded | LOTS of carbon fiber
|
Appreciate
0
|
07-31-2013, 06:23 AM | #64 | |
Captain
158
Rep 866
Posts |
Quote:
PL |
|
Appreciate
0
|
Bookmarks |
|
|