Rear Coolant Pipe, Removing And Installing

WARNING: This page is about a different car, the 2011 Audi Q7, 2010 Audi Q7, and 2009 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Hose Clip PliersVAS6362

Removal

Fig 1: Identifying Bolts -1 And 3- For Coolant Pipe

Courtesy of AUDI OF AMERICA, LLC

-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING .

-- Remove the turbocharger. Refer to TURBOCHARGER, REMOVING AND INSTALLING .

-- Remove the bolts -1- and -3- ; then push the left coolant pipe on the back of the transmission downward.

NOTE:

The installation location is shown with the engine removed.

Ignore -item 2 and 4- and -arrows-.

-- Remove the bolt -arrow- from the tab on the preliminary catalytic converter.

Fig 2: Identifying Bolt -Arrow- From Exhaust Pipe

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -4- from the Engine Coolant Temperature Sensor -G62-.

Fig 3: Identifying Bolts -1 And 2-, Clamp -3- And Electrical Connector -4-

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -1- and -2- and remove the rear coolant pipe from the exhaust gas recirculation cooler.

-- Loosen the clamp -3- and remove the rear coolant pipe.

Installation

Install in reverse order of removal. Note the following:

Tightening specification. Refer to COOLANT PIPES OVERVIEW .

NOTE:

Replace the o-ring.

The hose connections as well as the air guide pipes and hoses must be free of oil and grease before Installation.

Secure all hose connections with hose clamps of the same type as those equipped by the factory.

-- Clean and/or smooth the sealing surfaces of the o-rings.

-- Coat the o-ring with coolant and slide it onto the coolant pipe.

-- Install the left coolant pipe to the back of the transmission. Refer to COOLANT PIPES OVERVIEW .

-- Install the turbocharger. Refer to TURBOCHARGER, REMOVING AND INSTALLING .

-- Fill the coolant, refer to COOLANT, DRAINING AND FILLING .