Removing and installing metal valve body

Insert metal valve with rubber seal through rim from the inside.
install chamfered washer and union nut from the outside and tighten by hand.
Secure in place using retainer -1- (possibly 2 mm drill bit).
Tightening torque: 4 Nm (35 in lb)

Fig 1: Securing Metal Valve With Rubber Seal Using Retainer

Courtesy of AUDI OF AMERICA, INC.

Press wheel electronics -1- into drop center and bolt in at rear of valve with micro-encapsulated bolt.
Tightening torque: 4 Nm (35 in lb)

Fig 2: Pressing Wheel Electronics Into Drop Center

Courtesy of AUDI OF AMERICA, INC.