Driveshaft, Removing And Installing, Driveshaft Bolted On Transmission Side: Installing

Install in reverse order of removal. Pay attention to the following:

• Remove the old, dry High Temperature Grease from the CV joints and the driveshaft flanges. Insert the same quantity of High Temperature Grease G 052 133 A3.
• Always remove any remaining locking fluid from thread bores in drive flanges for transmission driveshaft and for rear final drive. They can be cleaned with a thread tap. If the threads are not clean, the bolts will break off when they are being installed.
• After removing the driveshaft from the rear final drive, do not install the additional balance washer (thicker washer) that may be between the backing plate and the bolt.
• Always replace the bolts for driveshaft (self-locking bolts).
• Pay attention to the installed position of the driveshaft: the center of the CV joint is located behind the intermediate bearing facing the rear final drive.
• Check the driveshaft seal on the rear final drive flange and the transmission for damage (bent, rubber layer worn off) and replace if damaged. Replace the damaged seal.

-- Install the driveshaft while paying attention to the rear final drive:

Fig 1: Marking Position Of Driveshaft Flange To Rear Final Drive

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• The dots on the driveshaft -arrow A- and on the rear final drive -arrow B- must line up.
• Maximum difference between the markings: 30°.

-- Install the new bolts all the way in by hand but do not tighten them.

-- Install the bolts -arrows- just far enough so that the so the intermediate bearing can still be moved.

Fig 2: Identifying Securing Bolts For Center Bearing, Removal/Installation

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-- Tighten the bolts -1- on the rear driveshaft. Follow the tightening sequence. Refer to Figure.

Fig 3: Removing/Installing Driveshaft Bolts

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-- Tighten the bolts on the front driveshaft. Tightening specification. Refer to -item  5- Bolt (See Figure).

Fig 4: Counterholding Driveshaft Using T10172 And T10172/5

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-- Remove the Driveshaft Alignment Fixture3139.

-- Tighten the driveshaft intermediate bearing on the body without tension. Tightening specification. Refer to -item  8- Bolt (See Figure).

-- Tighten the heat shield -A- to the transmission -arrows-. Tightening Specification. Refer to Figure.

Fig 5: Identifying Driveshaft Heat Shield

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-- Install the heat shield -1-.

Fig 6: Identifying Crossmember (A4, A5 Coupe/Sportback/Cabrio, Q5)

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-- If equipped, install the front crossmember -2- and the rear crossmember -3-. Refer to OVERVIEW - TUNNEL BRACE .

-- Install the exhaust system and align it without tension. Refer to EXHAUST PIPES/MUFFLERS for engine code CALA, EXHAUST PIPES/MUFFLERS for engine codes CAED, CAEB, CPMB, CPMA, or EXHAUST PIPES/MUFFLERS for engines CCBA, CGXC, CTUB .