Power Take-Off Drive Chain, Removing And Installing: Removing

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Fig 1: Identifying Crankshaft Key T40049

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The transmission is removed, refer to TRANSMISSION, REMOVING AND INSTALLING .

-- Remove the lower timing chain cover, refer to LOWER TIMING CHAIN COVER, REMOVING AND INSTALLING .

CAUTION:

Danger of damaging the drive chain because the bolt thread is too long.

Only use bolts with a maximum 22 mm thread length -a- to attach the Crankshaft Key T40049.
If only longer bolts are available, then the bolt head must be installed in such a way so that thread length is still 22 mm only.

-- Install the Crankshaft Key T40049 with two bolts -arrows- on the back of the crankshaft.

Fig 2: Identifying Key T40049 At Rear On Crankshaft

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-- Remove the locking bolt -arrow- for the "TDC" marking crankshaft from the cylinder block.

Fig 3: Identifying Locking Bolt

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-- Rotate the crankshaft in the direction of engine rotation to "TDC".

-- Install the Crankshaft Locking Pin T40069 in the hole and tighten to 20 Nm. Rotate the crankshaft -1- back and forth slightly to center the pin completely, if necessary.

Fig 4: Crankshaft Locking Pin T40069

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-- Press the chain tensioner guide rail in direction of -arrow- and secure chain tensioner using a Locking Pin T40071.

CAUTION:

Risk of destroying due to reversed running direction on a used drive chain.

Mark the drive chain running direction with arrows using paint for installation later. Do not mark the drive chain with a punch, notch or something similar.

-- Remove the bolts -3- and the balance shaft chain sprocket.

-- Remove the bolts -1- and -2- and the chain tensioner with the chain.

Fig 5: Pressing & Securing Chain Tensioner Using Locking Pin T40071

Courtesy of AUDI OF AMERICA, LLC