Rear Coolant Pipe

Special tools and workshop equipment required

Removing

-- Remove the turbocharger. Refer to TURBOCHARGER .

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

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

Courtesy of AUDI OF AMERICA, LLC

NOTE:

The installation location is shown with the engine removed.

Ignore -2 and 4- and -arrows-.

-- Remove the bolt -arrow- on the preliminary catalytic converter strap.

Fig 2: Identifying Bolt -Arrow- From Exhaust Pipe

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the electrical connector -4- on the engine coolant temperature (ECT) 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.

Installing

Install in reverse order of removal. Note the following:

NOTE:

Replace O-ring.

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

Secure all hose connections with hose clamps appropriate for the model.

-- 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 .

-- Fill with coolant FILLING .