Audi A6 Typ 4G: Overview - Driveshaft Bolted on Transmission Side, Audi A4 and A5
Note
- Follow the general repair information. Refer to → Chapter "General Repair Information".
- 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 transmission or the rear final drive, the driveshaft must be tied up by the end or otherwise supported. If necessary, the driveshaft can be bent as far as the end stop of the center without force.
- Label the position of all the parts to each other before removing them. Install in the same position otherwise the imbalance will be excessive and the bearings could get damaged causing rumbling noises.
- Use the Counterhold - Kit - Multiple Use -T10172- with the Counterhold - Kit - Adapter 5 -T10172/5- to loosen or tighten the driveshaft bolts.
- After detaching the driveshaft from the rear final drive, do not reinstall the balance disc (thicker washer between the backing plate and the internal multi-point bolt), if applicable.
- Tightening sequence for the attaching the driveshaft to the rear final drive. Refer to → Fig. "Tightening Specification and Sequence - Driveshaft to Rear Final Drive".
- If there are concerns (noises, vibrations), check the intermediate bearing for tension before replacing the driveshaft.
1 - Rear Final Drive
- Removing and installing. Refer to → Chapter "Rear Final Drive, Removing and Installing".
2 - 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
3 - driveshaft
- Removing and installing. Refer to → Chapter "Driveshaft Bolted on Transmission Side, Removing and Installing".
- Removing and installing on the transmission. Refer to → Chapter "Transmission Flange Installed 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 - Balance Disc
- Not on every vehicle
- May be installed between the multi-point socket bolt -item 5- and the backing -item 6- plate on the rear final drive.
- If fitted, balance disc must not be installed when driveshaft has been detached from rear final drive.
5 - Bolt
- 30 Nm + 90º
- Always replace.
- Self-locking
- Always clean the threaded holes in the flange shafts. (For example with a thread tap)
- On the rear final drive
- Tightening specification and sequence. Refer to → Fig. "Tightening Specification and Sequence - Driveshaft to Rear Final Drive"
- At the transmission
6 - Locking Plate
7 - Intermediate Bearing
8 - Bolt
- 20 Nm
9 - Transmission
Tightening Specification and Sequence - Driveshaft to Rear Final Drive
- Always replace the driveshaft bolts -1-.
- Counterhold with Counterhold - Kit - Multiple Use -T10172- and Counterhold - Kit - Adapter 5 -T10172/5-.
- Tighten the bolts -1- in three steps:
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Driveshaft Heat Shield - Tightening Specification
- Tighten the bolts -arrows- to 24 Nm.
Driveshaft Bolted on Transmission Side, Removing and Installing
Special tools and workshop equipment required
- Driveshaft Alignment Fixture -3139-
- Counterhold - Multiple Use -T10172A- with Counterhold - Kit - Adapter 5 -T10172/5-
- Engine and Gearbox Jack -VAS6931- with Universal Transmission Support -VAG1359/2-
- High Temperature Grease -G 000 633-
Driveshaft, Removing
- Note the instructions. Refer to → Chapter "Overview - Driveshaft Bolted on Transmission Side, Audi A4 and A5".
- A two-column shop hoist should be used when working on the driveshaft.
Note
Do not bend the flex joint in the front exhaust pipe more than 10º or it will be damaged.
- Loosen the clamping sleeves -1 and 2- and disconnect the exhaust system.
- Attach the front exhaust pipe on the underbody side.
- Remove the rear section of the exhaust system.
Note
A second technician is needed to help remove the rear section of the exhaust system.
- Remove the crossmember -3-.
- If equipped, remove the front crossmember -2-.
- Remove the heat shield -1- from the body -arrows-.
- Remove the heat shield -A- from the transmission-arrows-, if applicable.
- Check whether there is a color marking on the driveshaft and at flange/driveshaft on the rear final drive -arrow A- and -arrow B-.
- If one of these markings is no longer visible (for example -arrow A- on the driveshaft), then make a mark for the missing colored dot in color.
- The mark on the driveshaft -arrow A- and on the rear final drive -arrow B- are on one line.
- Attach the Driveshaft Alignment Fixture -3139- and tighten the plastic nuts.
Note
Never place the Alignment Fixture on the balance plates.
- Remove the intermediate bearing bolts -arrows-.
- Remove the bolts attaching the driveshaft to the transmission by counterholding with the Counterhold - Multiple Use -T10172A- and with the Counterhold - Kit - Adapter 5 -T10172/5-.
- Remove the driveshaft from the transmission and support the driveshaft with the Engine and Gearbox Jack -VAS6931-.
- Remove the bolts -1- (quantity: 6) from the rear CV joint.
- Use the Counterhold - Kit - Multiple Use - T10172- with Counterhold - Kit - Adapter 5 -T10172/5-.
- Remove the driveshaft.
Note
Always transport and store driveshaft when it is fully extended.
Driveshaft, 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 000 633-.
- 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).
- Check the driveshaft seal on the rear final drive flange and the transmission flange for damage (bent, rubber layer worn off) and replace if damaged. Replace the damaged seal.
- 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.
- Install the driveshaft while paying attention to the rear final drive:
- 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 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.
- Tighten the bolts -1- on the rear driveshaft. Follow the tightening sequence. Refer to → Fig. "Tightening Specification and Sequence - Driveshaft to Rear Final Drive".
- Tighten the bolts on the front driveshaft. Tightening specification -item 5-.
- Remove the Driveshaft Alignment Fixture -3139-.
- Tighten the driveshaft intermediate bearing on the body without tension -item 8-.
- 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-.
- Reconnect the exhaust system making sure it is not under stress.
Transmission Flange Installed on Transmission Side, Removing and Installing
Special tools and workshop equipment required
- Counterhold - Kit - Multiple Use -T10172- with Counterhold - Kit - Adapter 5 - T10172/5-
- High Temperature Grease -G 000 633-
Remove the Driveshaft
- Note the instructions. Refer to → Chapter "Overview - Driveshaft Bolted on Transmission Side, Audi A4 and A5".
- A two-column shop hoist should be used when working on the driveshaft.
Note
Do not bend the flex joint in the front exhaust pipe more than 10º or it will be damaged.
- Loosen the clamping sleeves -1 and 2- and disconnect the exhaust system.
- Tie the front exhaust pipe(s) to the underbody.
- Remove the heat shield -A- from the transmission-arrows-, if applicable.
- Remove the bolts attaching the driveshaft to the transmission by counterholding with the Counterhold - Multiple Use -T10172A- and with the Counterhold - Kit - Adapter 5 -T10172/5-.
- Secure the propshaft to the underbody.
Install the Driveshaft
Install in reverse order of removal. Pay attention to the following:
- Remove the 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 transmission must be cleaned of locking fluid residue. They can be cleaned with a thread tap. If the threads are not clean, the bolts will break off when they are being installed.
- Always replace the bolts for driveshaft (self-locking bolts).
- Check the driveshaft seal on the transmission flange for damage (bent, rubber layer worn off). Replace the damaged seal.
- Install the driveshaft and the new CV joint bolts.
- Tighten the bolts on the front driveshaft. Tightening specification -item 5-.
- Use the Counterhold - Kit - Multiple Use -T10172- with Counterhold - Kit - Adapter 5 -T10172/5-.
- Tighten the heat shield -A- to the transmission -arrows-. Tightening specification. Refer to → Fig. "Driveshaft Heat Shield - Tightening Specification".
- Connect exhaust system and align it without tension.
