Driveshaft
Driveshaft
Special tools, testers and auxiliary items required
• Assembly tool (3139)
• Pry lever (80 - 200)
• Engine/transmission jack (V.A.G 1383 A) with universal transmission support (V.A.G 1359/2)
Driveshaft (Audi A4 and Cabriolet, Audi A6), removing
• See notes => [ Driveshaft, Assembly Overview ] Driveshaft, Assembly Overview
• The driveshaft should only be worked on a two column lift.
Audi A4, Audi Cabriolet:
- Remove rear part of exhaust system from clamping sleeves - arrows -.
- Pry off mountings - A - for heat shield above intermediate bearing.
- Remove mounting bolts for intermediate bearing - B -. When doing this, support driveshaft by hand.
- Remove heat shield while supporting driveshaft.
- Install mounting bolts for intermediate bearing by hand.
Audi A6:
- If present, remove rear transverse beam - 1 -.
- Remove heat shield - 3 - from vehicle floor - arrows -.
Continuation for all vehicles:
- If present, remove mounting bolts for front exhaust pipes - 1 - and - 2 -.
- Remove shielding plate - A - from transmission - arrows -.
- Check whether there is a marking (colored marking) on driveshaft and at flange/driveshaft at rear final drive.
- If this marking is not present, then mark in color the position of driveshaft flange - arrow A - to rear final drive - arrow B -.
- Attach Alignment Fixture - 4W Dr. Shaft (3139 ) and tighten plastic nuts.
• Never set alignment fixture on balance plates.
- Remove mounting bolts - arrows - for intermediate bearing.
- Loosen securing bolts of front driveshaft - arrows -.
- Remove driveshaft from transmission and support it using engine/transmission jack (V.A.G 1383 A).
- Remove mounting bolts - arrows - on rear CV joint and remove driveshaft.
• Only store and move driveshaft fully extended.
Installing driveshaft - Audi A4 and Cabriolet, Audi A6
Installation is in reverse order of removal. Note the following:
• Remove old and dry high-temperature grease from CV joints and flanges for driveshaft. Fill the exact same amount of new grease G 000 633.
• Always remove any remaining locking fluid from thread bores in drive flanges for transmission driveshaft and for rear final drive. Cleaning can be performed with a tap. Otherwise, the securing bolts can shear while installing.
• After disconnecting driveshaft from rear final drive, an additional balance washer (thick washer) that may be located between shim and a mounting bolt may not be reinstalled.
• Always replace (self-locking) securing bolts for driveshaft.
• Note installation position of driveshaft: Center CV joint is located behind intermediate bearing in direction facing the rear final drive.
• Make sure that the markings on flange for driveshaft - arrow A - and for transmission/rear final drive - arrow B - line up.
• If a new driveshaft is installed and the factory marking on the rear final drive flange is no longer visible, check radial run out at flange/driveshaft and adjust color marking at new driveshaft to new marking at flange/driveshaft.
- Replace seals for driveshaft at transmission/rear final drive flange. Remove grease from sealing surfaces and adhere new seals.
- Insert driveshaft and install with new bolts for CV joint.
- Install mounting bolts - arrows - far enough that intermediate bearing can still be moved.
- Tighten bolts - arrows - of driveshaft at rear final drive to tightening torque => [ (Item 5) Socket head bolt, 55 Nm ] Driveshaft, Assembly Overview.
- Tighten bolts - arrows - of front driveshaft to tightening torque => [ (Item 5) Socket head bolt, 55 Nm ] Driveshaft, Assembly Overview.
- Remove alignment fixture (3139).
Audi A4, Audi Cabriolet:
- Remove mounting bolts - arrows -. When doing this, driveshaft must be supported by a second technician.
- Insert heat shield - 2 -. Continue to support driveshaft while doing this.
- Install mounting bolts - 4 - on left and right a few more turns.
- Secure heat shield - 2 - on left and right with a bolt - 1 - (M8x30) on intermediate bearing - 3 -.
• When tightening the combination bolt - 4 -, make sure that centering element - arrow A - is located in the locating hole - arrow B -.
- Tighten bolts - 2 - of intermediate bearing for driveshaft on to body free of tension. Torque => [ (Item 8) Hex bolt, 25 Nm ] Driveshaft, Assembly Overview
- Remove bolts - 1 -.
- Remove mounting bolts for intermediate bearing - B -. When doing this, support driveshaft by hand.
- Insert mounting clips for heat shield.
Audi A6:
- Tighten bolts of intermediate bearing for driveshaft on to body tightening torque => [ (Item 8) Hex bolt, 25 Nm ] Driveshaft, Assembly Overview. While doing this, centering elements of intermediate bearing must be located in the locating holes - arrows -.
Continuation for all vehicles:
- Tighten bolts of shielding plate - A - on to transmission - arrows -.
- If present, tighten bolts of front exhaust pipes - 1 - and - 2 -.
- If present, tighten bolts of heat shield - 3 - on to vehicle floor - arrows -.
- Install rear part of exhaust system - 2 -.
Tightening torques