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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 02-19-2015, 05:01 AM
EBinOC EBinOC is offline
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Location: Severna Park, MD
 
Join Date: Feb 2015
Posts: 3
Mein Auto: BMW 335d
2011 335d code help...Newbie

Getting these codes. 2011 335d, about 108l on odo. Engine just started idling a little rough. Milage has been ok. Brief issue with limp mode during a very cold snowy day. Any insights, recommendations, fixes, or at least an assessment if this is something I can wrench on my self would be greatly appreciated. Thanks for helping a rookie out.

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  #2  
Old 02-19-2015, 09:26 AM
KeithS KeithS is offline
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Location: Central NJ
 
Join Date: Dec 2001
Posts: 1,772
Mein Auto: '11 335d, '00 540iT
You need to start reading the diesel boards. All except the last code I would say points to CBU (Carbon Buildup). A significant percentage of the posts relate to CBU. This will happen to every 335D, just when is the question. For many it will occur more than once in the car's lifetime. Except in very limited circumstances where you have all the needed 335D specific specialized tools and knowledge, cleaning the CBU is not a DIY procedure.

The good news is BMW has a pretty good handle on diagnosing and correcting the problem. If you are over 100K miles, this will be on your dime. As very few have actually had to pay for the CBU cleaning themselves at this point the cost is somewhat a guess, but believed to be in the neighborhood of $1500. Once the cleaning is done the car really does run like new.

Good Luck
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  #3  
Old 02-22-2015, 11:45 AM
EBinOC EBinOC is offline
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Location: Severna Park, MD
 
Join Date: Feb 2015
Posts: 3
Mein Auto: BMW 335d
Thank you. I've read a number of threads on the issue. I had the feeling carbon might be the problem. I just need to find someone in MD who does that service. Otherwise, the car is fantastic.
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