Audi A6 Typ 4G: Overview - Driveshaft, Mounted On Transmission Side
- Follow the general repair information. Refer to → Chapter "General Repair Information".
- The attached driveshaft can only be separated from the transmission if it is completely removed.
- No repair work can be carried out on the driveshaft with the exception of removing, installing and adjusting.
- Always store and transport the driveshaft when it is fully extended.
- The driveshaft can be bent all the way to the center joint without force. Bending the joint forcibly all the way can damage the center joint and/or the protective boot.
- If the driveshaft is separated only from the rear final drive, the driveshaft must be tied up or supported. If necessary, the driveshaft can be bent as far as the end stop of the center without force.
- Use the Counterhold - Kit - Multiple Use -T10172- with the Counterhold - Kit - Adapter 5 -T10172/5- (M8 bolts) or Counterhold - Kit - Adapter 6 -T10172/6- (M10 bolts) to loosen or tighten the driveshaft bolts.
- Always remove or install the driveshaft horizontally from the transmission output shaft.
- Tightening sequence for the attaching the driveshaft to the rear final drive. Refer to → Fig. "Tightening Specification and Sequence - Driveshaft on the Rear Final Drive 0BE and 0BF".
Should there be complaints (noise, vibration), do the following before replacing the driveshaft:
- Make sure the intermediate bearing is free of tension.
- Remove the driveshaft bolts from the rear final drive. Attaching the driveshaft according to the tightening sequence. Refer to → Fig. "Tightening Specification and Sequence - Driveshaft on the Rear Final Drive 0BE and 0BF".
1 - Transmission
2 - Hose Clamp
- Replacing
3 - Driveshaft
- Removing and installing. Refer to → Chapter "Driveshaft, Mounted on Transmission Side, Removing and Installing".
- Removing and installing on the rear final drive. Refer to → Chapter "Driveshaft, Removing and Installing from Rear Final Drive".
4 - Locking Plate
5 - Bolt
- Final drive 0BF
- M8 x 45
- Self-locking
- Replacing
- The threads in the flange shaft on the rear final drive must be cleaned of locking fluid residue. Use a thread tap to clean.
- Tightening specification and sequence. Refer to → Fig. "Tightening Specification and Sequence - Driveshaft on the Rear Final Drive 0BE and 0BF"
- Final drive 0BE (only A8 with V8 TDI engine)
- M10 x 45 x 1
- Replacing
- Tightening specification and sequence. Refer to → Fig. "Tightening Specification and Sequence - Driveshaft on the Rear Final Drive 0BE and 0BF"
6 - Gasket
- Replace a damaged seal.
- A seal for which the rubber coating has come loose must be replaced
- Clean the flange shaft and position the seal
- Pay no attention to the different colored sides for the installation
7 - Rear Final Drive
- Removing and installing. Refer to → Chapter "Rear Final Drive, Removing and Installing".
8 - Intermediate Bearing
9 - Bolt
- 20 Nm
Tightening Specification and Sequence - Driveshaft on the Rear Final Drive 0BE and 0BF
- Always replace the driveshaft bolts -1-.
- Counterhold with Counterhold - Kit - Multiple Use -T10172- and Counterhold - Kit - Adapter 5 -T10172/5- (M8 bolts) or Counterhold - Kit - Adapter 6 -T10172/6- (M10 bolts).
- Tighten the bolts -1- in three steps:
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Driveshaft Heat Shield - Tightening Specification
- Tighten the bolts -arrows- to 24 Nm.
Driveshaft, Mounted on Transmission Side, Removing and Installing
Special tools and workshop equipment required
- Transmission Support -VW785/1B-
- Counterhold - Kit - Multiple Use -T10172-
- Counterhold - Kit - Adapter 5 -T10172/5-
- Counterhold - Kit - Adapter 6 -T10172/6-
- Hose Clip Pliers -VAG1275A-
- High Temperature Grease -G 000 633-
Removing
Note
- The attached driveshaft can only be separated from the transmission if it is completely removed.
- Perform work on driveshaft on a two-column shop hoist if possible.
- After removing the driveshaft from the rear final drive, tie up the shaft ends or hold them up.
- The driveshaft can be bent all the way to the center joint without force. Bending the joint forcibly all the way can damage the center joint and/or the protective boot.
- Always remove or install the driveshaft horizontally from the transmission output shaft.
Caution
Risk of damaging the coupling elements.
- Do not bend the coupling more than 10º.
- Do not load the coupling.
- Do not damage the wire mesh on the coupling.
- Loosen the clamping sleeves -1 and 2- and slide them to the rear.
- Tie the front muffler or the left and right front exhaust pipe to the underbody.
- Remove the bolts -arrows- and remove the driveshaft heat shield -1- (if equipped).
- Cut the clamp -1- for the driveshaft boot and remove it.
Note
Ignore item -2-.
Audi A6 and A7
- Remove the crossbrace -2-. Refer to →Body Exterior; Rep. Gr.66.
Audi A4, A5 Coupe, A5 Sportback, A5 Cabrio, A8
- Remove the front crossmember -2- and the rear crossmember -3-. Refer to →Body Exterior; Rep. Gr.66.
Continuation for All Vehicles
- Remove the heat shield -1-.
- Lower the front of the exhaust system rear section and then secure it using the Transmission Support -VW785/1B-, as illustrated.
- Make sure there is a mark (color dot) on the driveshaft and on the rear final drive driveshaft flange -arrow A- and -arrow B-.
- Make a color dot again if the original mark is no longer visible.
- The dots on the driveshaft -arrow A- and on the rear final drive -arrow B- must line up.
Rear Final Drive 0BF
- Remove the bolts -1- (quantity: 6) from the rear CV joint.
- Counterhold with Counterhold - Kit - Multiple Use -T10172- and Counterhold - Kit - Adapter 5 -T10172/5-.
Rear Final Drive 0BE
- Remove the bolts -1- (quantity: 6) from the rear CV joint.
- Counterhold with Counterhold - Kit - Multiple Use -T10172- and Counterhold - Kit - Adapter 6 -T10172/6-.
Continuation for All Final Drives
- Remove the bolts -arrows- for the driveshaft intermediate bearing.
- Guide the rear driveshaft on the fuel tank and on the rear subframe downward and remove it from the transmission.
Installing
- Tightening specification. Refer to → Chapter "Overview - Driveshaft, Mounted On Transmission Side" and → Fig. "Driveshaft Heat Shield - Tightening Specification".
Note
- Remove any old, dry high-temperature grease from the CV joint and the driveshaft flange. Insert the same quantity of High Temperature Grease -G 000 633-.
- The threads in the flange shaft on the rear final drive must be cleaned of locking fluid residue (not for M10 bolts). They can be cleaned with a thread tap. If the threads are not clean, the bolts will break off when they are being installed.
- Replace the driveshaft bolts.
- Replace the hose clamps -1- for the driveshaft boot -2-.
- Check the driveshaft seal on the rear final drive flange for damage (bent, rubber layer worn off) and replace if damaged. Replace the damaged seal.
- Wipe the splines on the transmission output shaft with a towel before installing the driveshaft. The splines are not lubricated.
- First mount the driveshaft on the transmission.
- Maximum bend angle: 10º.
- After the driveshaft is inserted approximately 50 mm into the transmission output shaft, turn the driveshaft slightly to make sure that the transmission output shaft splines are meshed into the inner splines of the driveshaft.
- Push the driveshaft all the way onto the splines on the transmission output shaft.
- Install the bolts -arrows- just far enough so that the so the intermediate bearing can still be moved.
- Position the driveshaft on the rear final drive while paying attention to the installation position:
- The dots on the driveshaft -arrow A- and on the rear final drive -arrow B- must line up.
- Maximum difference between the markings: 30º.
- Install the new bolts all the way in by hand but do not tighten them.
- Line up the hose clamp -1- for the driveshaft boot with the retainers -2- and then tighten the clamp using for example the Hose Clamp Pliers -VAG1275A-.
Note
In order to use the Hose Clamp Pliers -VAG1275A- correctly, move the driveshaft a little toward the rear.
- Tighten the driveshaft bolts -1-. Follow the tightening sequence. Refer to → Fig. "Tightening Specification and Sequence - Driveshaft on the Rear Final Drive 0BE and 0BF".
- Tighten the driveshaft intermediate bearing on the body without tension. Tightening specification -item 9-.
Install in reverse order of removal. Note the following:
- Tighten the heat shield -A- to the transmission -arrows-. Tightening specification. Refer to → Fig. "Driveshaft Heat Shield - Tightening Specification".
- Install the heat shield -1-.
- Install the front crossmember -2- and rear crossmember -3-.
- Install the exhaust system and align it free of tension. Refer to →Engine Mechanical;
