All-Wheel Drive Clutch Valve -N445- OR All-Wheel Drive Clutch Valve 2 -N446-, REMOVING AND INSTALLING: Installing

Fig 1: Identifying Clutch Valves

Courtesy of AUDI OF AMERICA, LLC

• The ball -5-, the guide -4- (the smaller diameter faces the spring) and the spring -3- must be installed in the housing opening -6- for the Clutch Valve -- -2-.

-- Coat the O-rings with ATF and install the new Clutch Valve -- with the new O-rings -arrows-.

-- Tighten the bolts -1- evenly until stop by hand. Then tighten to the tightening specification  ) Bolt.

Further installation is performed in reverse order of the removal. Note the following.

Allocation of the connectors for the Oil Pressure/Temperature Sensor -- and Clutch Valves -- :

Fig 2: Identifying Oil Pressure/Temperature Sensor Connectors

Courtesy of AUDI OF AMERICA, LLC

1. Oil Pressure/Temperature Sensor 2 -G640- Connector
2. Oil Pressure/Temperature Sensor -G437- Connector
3. All-Wheel Drive Clutch Valve 2 -N446- Connector
4. All-Wheel Drive Clutch Valve -N445- Connector

-- Attach the wiring harness bracket to the rear final drive. Refer to  ) Attach the bracket -1- to the rear final drive and tighten the bolts -arrows-. Tightening specification: 9 Nm.

-- Fill the ATF in the rear final drive. Refer to ATF, FILLING, "quattro sport", 0D3, 0BX .

-- Install the rear section of the exhaust system on the body and align it so it is free of tension. Refer to OVERVIEW - MUFFLER (4 CYL) , or OVERVIEW - MUFFLER (6 CYL) .