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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 Exhaust Manifold

Left Exhaust Manifold

Special tools and workshop equipment required 

Removing 

-- Remove the left intermediate pipe. Refer to LEFT INTERMEDIATE PIPE .

NOTE:

Place a cloth underneath to soak up any escaping power steering fluid.

Vehicles Built through 05.10: 

-- Disconnect the power steering pump hydraulic hose and the 3094.

Fig 1: Identifying Hydraulic Hose, Hydraulic Pressure Line & Hose Clamps 3094
GWWA10-10084Courtesy of AUDI OF AMERICA, LLC

-- Loosen the hose clamp -1- and remove the power steering fluid hose.

NOTE:

Ignore -2-.

-- Remove the banjo bolt -1- and bolt -2- and lay the power steering fluid line to the side.

Fig 2: Banjo Bolt -1- And Bolt -2-
GWWA48-10345Courtesy of AUDI OF AMERICA, LLC

Vehicles Built from 06.10: 

NOTE:

Place a cloth underneath to soak up any escaping power steering fluid.

-- Clamp off the power steering pump hydraulic hose -1- with a 3094.

Fig 3: Power Steering Pump Hydraulic Hose -1-, Bolts -2-
GWWA48-10590Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -2- and move the hydraulic line to the rear.

All Vehicles: 

-- Seal the open lines and connections with clean plugs from the VAS 6122.

-- Remove nuts -arrows- and remove the exhaust manifold.

Fig 4: Exhaust Manifold Bolts -Arrows-
GWWA26-10035Courtesy 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.

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

-- Install the power steering fluid line. Refer to Description and Operation .

-- Install the left intermediate pipe. Refer to LEFT INTERMEDIATE PIPE .