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Home >> Audi >> 2012 >> Q7 3.0 TDI >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> 3.0L - Cooling System - Engine Code(S): CATA >> 19 Cooling System >> Removal And Installation >> Right Coolant Pipe

Right Coolant Pipe

Special tools and workshop equipment required 

Removing 

-- Drain the coolant. Refer to COOLING SYSTEM, DRAINING AND FILLING .

-- Remove the generator. Refer to the appropriate service information .

Fig 1: Identifying Bolts -Arrows- To Generator -1-
GWWA27-10218Courtesy of AUDI OF AMERICA, LLC

-- Remove the exhaust gas recirculation (EGR) cooler pump -V400-. Refer to EGR COOLER PUMP .

-- Remove the bolt -1- and remove the exhaust gas recirculation coolant thermostat and connection from the thermostat and connection.

Fig 2: Identifying Bolt -1-, EGR Coolant Thermostat And Connection
GWWA19-10784Courtesy of AUDI OF AMERICA, LLC
NOTE:

Ignore -2 and 3-.

-- Disconnect the starter connector -2-.

Fig 3: Identifying Nut -1- And Connector -2-
GWWA27-10079Courtesy of AUDI OF AMERICA, LLC

-- Remove the nut -1- and then remove the B+ wire form the threaded pin on the starter.

-- Pull the cover over the radiator -arrows-, to do this, disconnect the lower coolant hose.

Fig 4: Identifying Cover Over Radiator -Arrows-
GWWA10-10429Courtesy of AUDI OF AMERICA, LLC

-- Attach the 10-222 A onto bolted fender edge.

Fig 5: Identifying Engine Support Bridge 10-222 A
GWWA19-10304Courtesy of AUDI OF AMERICA, LLC

-- Attach the spindle from the engine support bridge to the right rear engine lifting eyelet.

-- Pre-tension the engine slightly using the engine support bridge spindles.

-- Remove the nut -1- on the right longitudinal member and disconnect the ground (GND) connection.

Fig 6: Identifying Ground (GND) Cable On Longmember
GWWN10-10018Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts and nuts -1 through 5- and remove the right engine support upward.

Fig 7: Identifying Bolts And Nuts -1 Through 5-
GWWA10-10498Courtesy of AUDI OF AMERICA, LLC

-- Using a 3212 as a counterholder, remove the bolts -arrows- and remove the coolant pump ribbed belt pulley.

Fig 8: Identifying Spanner Wrench 3212 And Bolts -Arrows-
GWWA13-0879Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -1-.

Fig 9: Identifying Bolt -1- And Coolant Hose -Arrow-
GWWA19-10815Courtesy of AUDI OF AMERICA, LLC

-- Remove the coolant hose -arrow- from the right coolant pipe by lifting the retaining clamp.

-- Remove the bolt -1- and nut -2-.

Fig 10: Identifying Bolt -1- And Nut -2-
GWWA19-10120Courtesy of AUDI OF AMERICA, LLC

-- Remove the right coolant pipe forward from the cylinder block.

Installing 

Install in reverse order of removal. Note the following:

NOTE:

Replace O-rings.

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.

-- Connect the coolant hoses with the connector coupling. Refer to Figure.

-- Install the coolant pump ribbed belt pulley. Refer to COOLANT PUMP AND COOLANT THERMOSTAT OVERVIEW .

-- Install the engine support and engine mount. Refer to SUBFRAME ASSEMBLY OVERVIEW .

-- Attach the B+ wire to the starter. Refer to the appropriate service information .

-- Install the exhaust gas recirculation coolant thermostat and connection. Refer to EXHAUST GAS RECIRCULATION COOLANT THERMOSTAT AND CONNECTION .

-- Install the exhaust gas recirculation (EGR) cooler pump -V400-. Refer to EGR COOLER PUMP .

-- Install the generator. Refer to the appropriate service information .

-- Fill with coolant FILLING .

Fig 11: Identifying Ground (GND) Cable On Longmember
GWWN10-10018Courtesy of AUDI OF AMERICA, LLC