The material of the end caps is the same as of the intake manifold, additionally reinforced with glass fibre. Hardness and durability comparable to that of aluminum.

Lack of differences in the thermal expansion between the manifold and the end caps.

Viton O-Ring, resistant to engine oils, and high and low temperature.

Manifold gaskets resistant to engine oils, and high and low temperature.

Important Information:

in the four-cylinder engines were always 22mm swirl flaps.

Affected engines:

M47N / M47TU / M47TUD20 110 kW (148 HP), 330 Nm

 E46 320d/318d (2001-2005)

 E83 X3 2.0d (to the end of 2006 r.)

M47TU2D20 (od 2004) 120 kW (161 HP), 340 Nm

 E60/E61 520d

 E87 120d

 E90/E91 320d

 E83 X3 2.0d (since 2006)