It is never a bad idea to delete your intake manifold swirl flaps and replace them with 22mm aluminum plugs if it hasn’t been done for your M47 engine just yet.
M47 engines are only equipped with 22mm diameter swirl flaps, including M47N (M47TU) and M47N2 (M47TU2). They never had larger diameter flaps.
FITS THESE BMW MODELS:
BMW 1 Series: E87
120d (120kw / 163hp) – M47N2
BMW 3 Series: E46
318d/td (85kw / 116hp) – M47N
320d/td/Cd (110kw / 150hp) – M47N
BMW 3 Series: E90, E91, E92, E93
320d (120kw / 163hp) – M47N2
BMW 5 Series: E60, E61
520d (110kw / 150hp) – M47N2
520d (120kw / 163hp) – M47N2
BMW X3 Series: E83
20d/xd (110kw / 150hp) – M47N2
Note: If your model is not listed here, then your M47 engine most likely does not have swirl flaps. If you are still not sure, please send us your VIN number.
KIT INCLUDES:
22mm aluminum plugs (4 pcs)
Intake manifold gasket set (9 pcs)
To ensure a long-lasting seal, it is recommended to apply a thin layer of sealant on the O-rings of the plugs. DO NOT use sealant on the intake manifold gaskets.