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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N47 and N57 Turbodiesel Engine / Drivetrain / Exhaust Modifications > 330D N57 engine Swirl flaps
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      07-27-2017, 02:28 PM   #1
beerglass007
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330D N57 engine Swirl flaps

Hi all

I currently own a E90 330D LCI 2010 with N57 engine and looking to upgrade to a F30 330D 2014 which has the same engine N57 ( I think )

Does the new F30 N57 engine have swirl flap problems like the older M57 and N57 engine or have they fixed it in the F30 car

Thanks
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      08-05-2017, 12:43 PM   #2
beerglass007
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Anyone know the answer to this please
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      08-13-2017, 04:37 PM   #3
Len_Beach
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Have a look on real oem for the part number of the manifold then google it to have a look at the design.

I'd suspect it's similar to the E90.
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      08-13-2017, 07:42 PM   #4
floydarogers
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Quote:
Originally Posted by beerglass007 View Post
I currently own a E90 330D LCI 2010 with N57 engine and looking to upgrade to a F30 330D 2014 which has the same engine N57 ( I think )

Does the new F30 N57 engine have swirl flap problems like the older M57 and N57 engine or have they fixed it in the F30 car
You didn't get an answer because many of us posting here are USA/CA and don't get that model.

I hate to guess, but there are two things I'll mention:
1) I believe that BMW went to the newer DDE with the N57 that they used on USA/CA M57, to meet emissions control requirements. The new DDE requires a different actuator design for the swirl flaps.
2) No-one in the USA/CA has had problems with their swirl flaps on their M57 due with the different design. Nor have we seen problems with the N57 in the new X5 or the 535d.
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      09-06-2017, 05:43 PM   #5
Len_Beach
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Post 19 below. The same swirl flap setup as the E90 330d LCI. I removed the swirl flaps from mine.

http://f30.bimmerpost.com/forums/sho....php?t=1005657
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