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Home >> Audi >> 2012 >> Q7 3.0 TDI >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> 3.0L - Exhaust System, Emission Controls - Engine Code(S): CATA >> 26 Exhaust System, Emission Controls >> Removal And Installation >> Left Intermediate Pipe

Left Intermediate Pipe

Removing 

-- Remove the primary catalytic converter. Refer to PRIMARY CATALYTIC CONVERTER .

-- Remove the rear coolant pipe. Refer to REAR COOLANT PIPE .

-- Remove the exhaust gas recirculation auxiliary cooler. Refer to EXHAUST GAS RECIRCULATION AUXILIARY COOLER .

-- Remove the bolts -3- and -4- and remove the exhaust gas recirculation pipes.

Fig 1: Connecting Pipe And Bolts
GWWA26-10748Courtesy of AUDI OF AMERICA, LLC
NOTE:

Bolts -1- and -2- were already removed.

-- Remove the air guide hose by loosening the hose clamps -arrows-.

Fig 2: Loosening Charge Air Hose Clamps -Arrows- And Remove Hose.
GWWA10-10484Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts and nuts -arrows- and remove the left intermediate pipe.

Fig 3: Removing Intermediate Pipe Nuts -Arrows- And Pipe
GWWA26-10034Courtesy of AUDI OF AMERICA, LLC

Installing 

Install in reverse order of removal. Note the following:

NOTE:

Replace the seals, O-rings and the self-locking nuts.

-- Install the air duct hoses and screw-type clamps. Refer to Fig 4.

Fig 4: Clamp Tightening Specifications
GWWA21-10396Courtesy of AUDI OF AMERICA, LLC

-- Install the exhaust gas recirculation auxiliary cooler. Refer to EXHAUST GAS RECIRCULATION AUXILIARY COOLER .

-- Install the rear coolant pipes. Refer to REAR COOLANT PIPE .

-- Install primary catalytic converter. Refer to PRIMARY CATALYTIC CONVERTER .