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Home >> Audi >> 2012 >> Q7 3.0 TDI >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (3.0L - Exhaust System & Emission Controls - Engine Code: CATA) >> 26 Exhaust System, Emission Controls >> Exhaust Gas RECIRCULATION >> EGR Auxiliary Cooler, Removing And Installing >> Removal

EGR Auxiliary Cooler, Removing And Installing: Removal

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.
Fig 1: Locating Preliminary Catalytic Converter Tab And Bolt -Arrow-
GWWA26-10328Courtesy of AUDI OF AMERICA, LLC

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

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

-- Carefully pull the engine cover off the 4 bolts one after the other -arrows-.

Fig 2: Removing Engine Cover
GWWA10-11000Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -1- and -2- and then remove the heat shield from the turbocharger.

Fig 3: Turbocharger Heat Shield And Bolts
GWWA21-10380Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -arrows-.

Fig 4: Locating Front Exhaust Pipe To Catalytic Converter Flange Nuts
GWWA26-10329Courtesy of AUDI OF AMERICA, LLC

-- Remove the preliminary catalytic converter from the turbocharger and push it toward the rear.

-- Remove the bolts -1- and -2-.

Fig 5: Connecting Pipe And Bolts
GWWA26-10748Courtesy of AUDI OF AMERICA, LLC
NOTE:

Ignore -items 3 and 4-.

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

Fig 6: Identifying Bolts -1 And 2-, Clamp -3- And Electrical Connector -4-
GWWA19-10788Courtesy of AUDI OF AMERICA, LLC
NOTE:

Ignore -items 3 and 4-.

-- Disconnect the vacuum hose -1- from the vacuum actuator and remove the Exhaust Gas Recirculation Cooler Switch-Over Valve 2 -N381- -3- from the bracket.

Fig 7: Identifying Bolts -Arrows- And EGR Auxiliary Cooler
GWWA26-10752Courtesy of AUDI OF AMERICA, LLC

-- Remove the screw -2- and remove the left rear coolant pipe from the exhaust gas recirculation auxiliary cooler.

-- Remove the screws -arrows- and remove the exhaust gas recirculation auxiliary cooler.