Camshaft Timing Chain, Removing From Camshafts, Cylinder Bank 1 (Right): Removing

-- Remove the cylinder bank 1 upper timing chain cover. Refer to UPPER TIMING CHAIN COVERS, REMOVING AND INSTALLING .

-- Remove the right lower air duct pipe. Refer to AIR DUCT PIPE, REMOVING AND INSTALLING .

Audi RS6/RS7: 

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-- Release the catches -1 and 3- and remove the coupling -2- from the lock carrier -4-.

All: 

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-- Using the Wrench - 21mm: T40263  and Adapter: T40314  , turn the crankshaft -arrow- until the vibration damper is at "TDC".

Audi A8 / S8: 

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-- If the camshaft housing is supposed to be removed afterwards, then remove the bolts -arrows-, free up the bracket -1- and push to the side using the Mechanical Coolant Pump Switch -N649- -2-.

All: 

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• The mark -1 or 2- on the camshaft adjusters must align with the corresponding locating tabs -arrows- on the camshaft housing. If necessary turn the crankshaft an additional turn.

-- Pierce the exhaust camshaft plug -2- in the center with a bolt driver -1- in direction of -arrow- and carefully lift, at the same time do not damage the sealing surface.

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-- Repeat the procedure on the intake camshaft plugs.

-- Tighten the Adapter: T40331/2  on the camshaft housing to 9 Nm.

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• It must be easy to insert the Camshaft Lock: T40331/1  .

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• Do not use a hammer to install the camshaft positioning tool.

-- Insert the prepared Camshaft Positioning Tool : T40331/1  all the way in the camshafts. If necessary slightly turn the crankshaft.

• The Camshaft Positioning Tool : T40331/6  engages as shown in the flattened section -1- on the intake camshaft.
• The Camshaft Positioning Tool: T40331/7  engages as shown in the flattened position -2- on the exhaust camshaft.

-- Tighten the bolts -arrows- to 9 Nm.

TIP:

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The Counter Holder: T90001  can only be inserted in one position

-- To counterhold, position the Socket : VAS261001  on the corresponding camshaft adjuster using the Counterholder: T90001  and loosen the control valve -1- with the Socket E24: T90000  .

-- For reinstallation mark the camshaft adjuster to the camshafts using paint.

Procedures, where the Engine is NOT Removed: 

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-- Insert the Locking Pin: T10492  on the groove -1- in the vibration damper all the way in the hole -arrow- in the belt pulley side sealing flange. If necessary push the crankshaft slightly back and forth.

Procedure, if the Engine is Removed Due to Preliminary Work. 

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-- Remove the plug.

-- Install the Crankshaft Locking Pin: T40069  in the hole and tighten to 20 Nm. If necessary push the crankshaft slightly back and forth.

Continuation: 

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-- Push back the pistons of the chain tensioner -2- using a bolt driver -1- all the way back in direction of -arrow- and lock the chain tensioner using the Locking Pins: T03006  .

TIP:

The piston is lubricated with oil and can only be pushed back slowly by applying constant pressure.

-- Remove the control valves -1 and 2- and remove both camshaft adjusters.

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