Audi Workshop Service and Repair Manuals

Removing and installing flexible coupling (rear)

Special tools and workshop equipment required

t	Torque wrench -V.A.G 1331-

t	Torque wrench -V.A.G 1332-

t	Engine and gearbox jack -V.A.G 1383 A- with universal gearbox support -V.A.G 1359/2-

Special tools and workshop equipment required

t  Counterhold tool -T10172- with adapters -T10172/5- Removing   Note t  Repairs on the propshaft should be carried out on a two pillar hoist. t  Before removing, mark the positions of all parts in relation to each other. Reinstall in the same position to avoid excessive imbalance, resulting in bearing damage and rumbling noise. t  Do not bend propshaft; only store and transport fully extended.

–  If fitted, remove cross member on underbody -arrows-.   Caution The flexible joints in the exhaust system can be damaged. The flexible joints in the front exhaust pipe must not be bent further than 10°. –  Disconnect exhaust system at clamp -1-. –  Tie up front exhaust pipe on underbody. –  Remove rear section of exhaust system → Rep. gr.26.

–  Loosen bolts -arrows- on centre bearing of propshaft approx. 2 turns. –  Take up weight of propshaft at rear propshaft tube using engine and gearbox jack -V.A.G 1383 A-. A -  Wooden block –  Secure propshaft against falling using belt from universal gearbox support -V.A.G 1359/2-.

–  Check whether there is a factory marking (coloured dot) on the flexible coupling and on the flange for the propshaft on the rear final drive -arrows-. –  If not, mark position of flexible coupling and flange for propshaft on rear final drive in relation to each other -arrows-.

–  If fitted, remove balancing nut and balancing washer -arrows-. l  Do not re-install previously fitted balancing nuts or balancing washers -arrows- after removing the flexible coupling.

–  When loosening and tightening propshaft bolts, counterhold at rear final drive using counterhold tool -T10172- and adapters -T10172/5-.

–  Unbolt rear propshaft tube with flexible coupling and vibration damper from final drive -arrows-.

–  Carefully detach rear propshaft tube from centring pin of propshaft flange on rear final drive.   Note t  Do not tilt propshaft when removing; pull off centring pin horizontally. Make sure that the seal in the centring sleeve -arrow- does not become damaged. t  The flexible coupling and vibration damper cannot be separated from each other.

–  Mark position of flexible coupling (rear) and flange of rear propshaft tube in relation to each other. –  Unbolt flexible coupling from propshaft tube -arrows-.

Installing Installation is carried out in reverse sequence; note the following:   Note t  The seals in flanges of the propshaft -arrow- must not be damaged when removing and installing. t  Renew propshaft if damaged. t  Do not tilt rear propshaft tube; push on horizontally onto centring pin. t  All parts of the propshaft marked in relation to each other must be reinstalled in the same position.

Installation position of flexible coupling with vibration damper: t  The shoulder on the outer circumference -arrows- must point away from the propshaft tube. t  Three projecting sleeves on the flange for propshaft on rear final drive and propshaft flange engage in mounting holes of flexible coupling.

–  Secure flexible coupling to propshaft tube -arrows-. Tightening torque → Item

–  Attach propshaft to rear final drive so that the markings -arrows- align.

–  Secure propshaft with flexible coupling to rear final drive -arrows-. Tightening torque → Item

Stress-free installation of centre bearing: l  Make sure that all propshaft bolts have been tightened. –  Position the centre bearing in its elongated holes so that the propshaft and centre bearing are not under stress. –  Tighten bolts with washers -1-. Make sure the bolts with washers -1- are within the four centring tabs on heat shield -2-. Tightening torque → Item

–  Install exhaust system and perform stress-free alignment → Rep. gr.26. –  If fitted, install cross member on underbody -arrows- → Rep. gr.26.