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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > Does carbon build up affect the e90 330d N57?



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      02-09-2014, 05:01 AM   #1
Len_Beach
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Does carbon build up affect the e90 330d N57?

I've just bought one and can't find any specific information anywhere to say that it does?

Are there any preventative maintenance practices I can carry out to avoid this or anything else on the N57?

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      02-09-2014, 02:40 PM   #2
dixy2k
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Any diesel engine will have issues with CBU. Some more than others.

These guys should be close to you, as I am sure there are many in UK.

http://www.youtube.com/watch?v=50gw-9vRXvQ
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      02-09-2014, 02:56 PM   #3
RimasRS
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Quote:
Originally Posted by dixy2k View Post
Any diesel engine will have issues with CBU. Some more than others.

These guys should be close to you, as I am sure there are many in UK.

http://www.youtube.com/watch?v=50gw-9vRXvQ
question was about valves, intake cams not DPF or catalytic converter...
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      02-10-2014, 09:59 AM   #4
dixy2k
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I don't see that anywhere.
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      02-10-2014, 11:52 AM   #5
Len_Beach
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Hi Guys,
The question was indeed in relation to valve build up etc.
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      02-10-2014, 04:05 PM   #6
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I saw my 320d intake cams are really clogged so I think the answer is yes same for EGR valve.
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