6 x 33MM Diesel Swirl Flap Blanks Repair Delete Kit For BMW M57N M57TU
6 x 33MM Diesel Swirl Flap Blanks Repair Delete Kit For BMW M57N M57TU
6 x 33MM Diesel Swirl Flap Blanks Repair Delete Kit For BMW M57N M57TU
6 x 33MM Diesel Swirl Flap Blanks Repair Delete Kit For BMW M57N M57TU
6 x 33MM Diesel Swirl Flap Blanks Repair Delete Kit For BMW M57N M57TU


6 x 33MM Diesel Swirl Flap Blanks Repair Delete Kit For BMW M57N M57TU

Regular price $23.00 Sale price $20.90
Unit price  per 

Package Detail:

6x 33mm Swirl Flap blanks
1x Manifold gasket between the AGR valve and the intake manifold.
6x Intake manifold gaskets upper against the cylinder head cover.
6x Intake manifold gaskets lower against the cylinder head.
Perfect match to your original car

There are 6pcs 33mm bungs with intake manifold gaskets kit.
Made of high quality aluminum material, durable in use.
The O rings are supplied with the bungs. It's the Oil resistant fluoro rubber.
Swirl flap substitute of the suction manifold (33 mm) with Viton O-rings
Material resistant to oil derivatives, as well as high and low temperatures
Same as on the picture
BMW engine codes and models:
- M47N/M47TU/M47TUD20
- E46 320d 2001-2005, E83 X3 2.0d (up to end of 2006)
- M47TU2D20 updated in 2004 to M47TU2D20
- E60/E61 520d, E87 120d, E90/E91 320d, E83 X3 2.0d - end of 2006 onwards
- Previous M57 - 2000 onwards M57D25
- 2000-2003 E39 525d automatic transmission only.
- M57N/M57TU - 2004 onwards M57TUD25
- E60/E61 525d
- M57/M57D29 - 1998 onwards M57D30
- E39 530d automatic transmission only
- E46 330d/330xd automatic transmission only
- E38 730d automatic transmission only
- E53 X5 3.0d, E38 730d, E39 530d
- M57N/M57TU - 2002 onwards M57TUD30
- E46 330d/330Cd/330xd
- E83 X3 3.0d
- E53 X5 3.0d
- E60/E61 530d/530xd
- E65 730d
- E60/E61 535d
- M57TU2D30 M57TU2D30 - 2007 onwards, facelifted E60 and E61
- M57TU2D30-UL M57TU2D30-OL M57TU2D30-TOP
- E90/E91/E92 325d
- E60/E61 525d/525xd E65 730d
- E90/E91 325d
- E90/E91 330d/330xd
- E60/E61
- BMW E70
- BMW E71
- E60/E61 535d
- E70 X5 3.0sd
- E71 X6 xDrive35d
- E83 X3 3.0sd
- E90/E91 335d
On many BMW M47 / M57 diesel engines, the swirl flaps no longer function properly with increasing mileage due to dirt and soot deposits. As a result, the flaps can break and fall into the combustion chamber.

In order to prevent engine damage, you can replace the originally installed swirl flaps with our precisely fitting plugs including the appropriate Viton O-rings. Our plugs and the Viton O-rings guarantee a long service life compared to the cheap materials of most other suppliers.

When replacing the swirl flaps with the plugs, you do not have to worry about engine malfunctions because the swirl flaps only provide a minimal amount of air swirling of the intake air in the cold start phase. The change in the engine run is so small that it is not perceived by most customers. But you have the certainty that the installed swirl flaps can not break and fall into the combustion chamber.

What size do I need?
In the 4-cylinder engines (M47 ..), the flaps always have a diameter of 22mm.
In the case of the 6-cylinder engines (M57 ..), the manufacturer made a change in the size of the swirl flaps in the course of 2004. As a guide, therefore:
22 mm diameter for vehicles up to 2004
32 mm diameter for vehicles from year 2004

From our experience we know, however, that depending on the model, there may already be deviations from this rule.
Therefore, you should check the required size on the vehicle.
You can determine the diameter without removing the swirl flap.
If the swirl flaps on your intake bridge are mounted with their screw axis parallel to the push rod of the swirl flap adjustment, then 22mm flaps have been installed. (Pic.1)

If the screw axis should be turned by approx. 40 ° to the push rod, flaps with the diameter 32mm were installed (pic.2).

You can also check the screw distance (pic.3)

What are the disadvantages of removing or closing the swirl flaps?

Almost all of our customers report that there are virtually no significant changes or disadvantages from replacing the swirl flaps. Neither in the lower speed range nor in consumption. The chance of a major engine failure should more than compensate for any minor changes in driving performance.