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BMW 3-Series (E90 E92) Forum
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BMW 335d Fuel Injector Problems
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09-22-2013, 10:08 PM | #45 | |
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If you a search for what is listed below you will see some pictures that show a map of when NOx and Soot are produced. Typically this would be more in line with normal warm engine. I suspect the issue with a lot of the sooting with a non modified diesel program would lie in the driving behaviour when the car is not up to temperature and on the throttle before the EGR closes. Search This: Diesel Equivalence Ratio vs Air/ Fuel pictures
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09-23-2013, 05:42 AM | #46 | ||
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if you want more smoke, use cetane improver: The effect of fuel cetane improver on diesel pollutant emissions Quote:
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09-23-2013, 05:52 AM | #47 | |
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As to how soon the 335d comes up to operating temperature, older diesels certainly had this characteristic, but modern diesels have systems built in to raise the operating temperature quickly, mainly for emissions compliance, but also for driver comfort: there is an electronic circuit whether through the glow plugs or in a coolant preheater, I don't know, that increases the temperature quickly in premium diesel cars. I've experienced it myself when living in a cold climate. Last edited by Pierre Louis; 09-23-2013 at 06:08 AM.. |
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09-23-2013, 06:52 AM | #48 | |
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09-23-2013, 09:54 PM | #49 |
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Hi PL,
I use an additive called 4+ Premium for summer and 4+ Arctic for winter. Below is the link. http://www.dieselservices.com/html/p...mium/index.cfm MSDS is available on request but they are a bit slow to reply to e-mails.
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09-23-2013, 11:27 PM | #50 | |
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09-24-2013, 06:06 PM | #51 | |
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The university data I may be able to find as an Alumni, but if the other portions were completed by Sask Research Council I doubt that would be published unless they wanted to share it. Just to have an almost unbiased trial, I got my friend to try it on his TDi Toureg just to see what effect he has considering he does a lot of city driving. His impressions are positive, much like mine have been. The only problem I have with the product, is the smell. When it warms up, I have to keep the dosing bottle in a bag to reduce the fumes. It is very strong and the warmer it is the worse the smell.
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09-24-2013, 08:24 PM | #52 | |
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09-24-2013, 08:31 PM | #53 |
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Really slow on the e-mails. Probably easier to drive over to their store but I never make the time.
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09-25-2013, 05:15 PM | #55 |
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09-26-2013, 12:01 AM | #56 | |
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Yes, and MSDS would allow us to know what ingredients are used but perhaps not the concentrations. Thanks. |
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09-26-2013, 06:54 AM | #57 |
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09-26-2013, 06:55 PM | #58 |
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Well he drives his like he stole it and he says he has been getting an extra 60 miles per tank. Not sure if this is from the additive alone or the changing of our diesel now that fall/ winter is setting in. I love our winter diesel because it is very clean.
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10-03-2013, 09:05 AM | #59 | |
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They ordered the part, which will arrive tomorrow and it will take them the entire day to install it. FYI, I also found out that with my CPO warranty, there is a $50 deductible, which no one bothered to tell me when I was buying my CPO BMW. But $50 is not that bad if you consider the parts and labor. |
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10-03-2013, 10:06 AM | #60 | |
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Just checked my "Service & Warranty" booklet, and the SCR pump is covered (if under 7/70K). |
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10-03-2013, 10:12 AM | #61 | |
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10-03-2013, 10:22 AM | #62 |
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10-03-2013, 12:09 PM | #63 |
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Did they mention anything about replacing the tank also, like one of the other 335D owners mentioned?
Yea, $50 deductable is part of the CPO Warranty Program. However, if the same issue comes back, they can't charge you the $50 again for a 2nd, 3rd,..etc. visit. |
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10-03-2013, 01:36 PM | #64 |
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They said that they will replace the pump as well as the tank.
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10-04-2013, 08:01 AM | #65 |
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I have had 3 to 4 SES lights in about 2 weeks after getting the intercooler charge pipe (red ones) changed. Brought the car back and it took almost 6 weeks for the urea tank and pump to arrive. I got the car back 2 weeks ago and its been solid since.
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10-04-2013, 09:31 AM | #66 |
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Good to hear. I just hope all the problems happen while under the CPO warranty. This way everything will be fixed and I should be fine for about 50k miles after it reached 100k miles. I am happy with the performance of the car and the great gas mileage, but with all the problems I had so far, I might have to sell it before it reaches 100k miles.
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