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Home >> Audi >> 2009 >> Q7 4.2 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (3.6L - Exhaust System & Emission Controls - Engine Code: BHK) >> 26 Exhaust System, Emission Controls >> Exhaust Manifold >> Exhaust Manifold, Removing And Installing >> Removal

Exhaust Manifold, Removing And Installing: Removal

WARNING: This page is about a different variant/trim than selected.
Fig 1: Air Guide Pipe And Vacuum Hose
GWWA10-10702Courtesy of AUDI OF AMERICA, LLC

Proceed as follows: 

NOTE:

When Installation, bring all cable ties back to same positions.

-- Disconnect vacuum hose -1-.

-- Remove air guide pipe -arrows-.

-- Disconnect the connector -1- from the Throttle Valve Control Module -J338-.

Fig 2: Locating Throttle Valve Control Module -J338- -1-
GWWA24-10367Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows- and the Throttle Valve Control Module -J338-.

Vehicles without Mechanical Vacuum Pump: 

Fig 3: Identifying Vacuum Lines On Intake Manifold
GWWA10-10701Courtesy of AUDI OF AMERICA, LLC

-- Remove vacuum lines on intake manifold as follows:

1 - For EVAP Canister, press release buttons

3 - For brake booster, remove suction jet pump -arrow- from bracket and press release buttons

4 - To Leak Detection Pump -V144-, press release buttons (only on USA vehicles)

NOTE:

Ignore -Item 2-.

Vehicles with Mechanical Vacuum Pump: 

Fig 4: Identifying Vacuum Lines From Intake Manifold
GWWA10-10891Courtesy of AUDI OF AMERICA, LLC

-- Remove vacuum lines on intake manifold as follows:

1 - For EVAP Canister, press release buttons

3 - For the Brake Booster -arrow-

NOTE:

Ignore -Item 2-.

All Vehicles: 

Fig 5: Identifying Intake Manifold Support Bolts -Arrow-
GWWA26-10497Courtesy of AUDI OF AMERICA, LLC

-- Remove bolts -arrows- and remove bracket.

-- Remove bolts -1 and 2- and remove heat shield.

-- Remove bolts -2- on main primary converter brackets.

Fig 6: Identifying Primary Catalytic Converter Bracket Bolts
GWWA26-10490Courtesy of AUDI OF AMERICA, LLC
NOTE:

Ignore -Item 1-.

-- Remove nuts -arrows- and remove pre-catalytic converters from exhaust manifolds.

Fig 7: Identifying Exhaust Pipe With Catalytic Converter To Exhaust Manifold Nuts -Arrows-
GWWA26-10493Courtesy of AUDI OF AMERICA, LLC

-- Remove 6 nuts each on both exhaust manifolds -arrows- and pull manifold toward right.

Fig 8: Identifying Nuts To Exhaust Manifold -Arrows
GWWA26-10494Courtesy of AUDI OF AMERICA, LLC