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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 11-25-2012, 02:39 PM   #1
rsalu
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Does my E46 have ?

does it have swirl flaps ? e46 330D 135 KW

Last edited by rsalu; 11-26-2012 at 09:34 AM. Reason: duh
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Old 11-25-2012, 06:34 PM   #2
TrippinBimmer
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huh?
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Old 11-26-2012, 09:04 PM   #3
Blocked Out
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Yes. All Diesel E46 Have swirl flaps. n fact all these cars have swirl flaps and are all infected with the same virus:
M47TUD20 introduced in 2001 and used on: E46 320d, 320Cd, X3 2.0
M57TUD30 introduced in 2002 and used on: E46 330d, E46 330d, X3 3.0d, X5 3.0d, E60/E61 530d, E65 730d
M57TUD25 introduced in 2004 and used on: E60/E61 525d

You need to remove them ASAP. Its a design flaw on BMW and a bomb waiting to go off. Plan a nice weekend and remove those suckers. If you dont have a DIY here it is.

http://www.bmwforums.info/general-gu...placement.html
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Last edited by Blocked Out; 11-26-2012 at 09:11 PM.
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Old 11-26-2012, 10:48 PM   #4
rsalu
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Thank you m8
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Old 11-27-2012, 12:23 AM   #5
jamex
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The trick with swirl flaps is to pretend you don't notice them....unless you prefer sleeping on the couch
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Old 12-03-2012, 09:10 AM   #6
rsalu
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Quote:
Originally Posted by Blocked Out View Post
Yes. All Diesel E46 Have swirl flaps. n fact all these cars have swirl flaps and are all infected with the same virus:
M47TUD20 introduced in 2001 and used on: E46 320d, 320Cd, X3 2.0
M57TUD30 introduced in 2002 and used on: E46 330d, E46 330d, X3 3.0d, X5 3.0d, E60/E61 530d, E65 730d
M57TUD25 introduced in 2004 and used on: E60/E61 525d

You need to remove them ASAP. Its a design flaw on BMW and a bomb waiting to go off. Plan a nice weekend and remove those suckers. If you dont have a DIY here it is.

http://www.bmwforums[/img] ** SPAM L...placement.html
took apart this sht today and noticed i dont have those flaps and then found this: " M47 engine(136bhp non common rail vp44 injection pump) DO NOT HAVE swirl flaps

M47N common rail engine (including M47N/M47TU/M47TUD20)(150bhp face lift model August-September 2001 onwards) has flaps

M57 engines(M57D)(525d & 187bhp 330d) have no swirl flaps on the manual cars BUT AUTOMATICS DO"

well i guess im one of the lucky ones who dont have these flaps
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Old 12-16-2012, 09:48 AM   #7
monkins
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also

Also the Turbo on the 98-01 models is stronger as it is derived from a lorry turbo, so you can get 200k+ miles on them without problems if always use good oil.
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