Dual Mass Flywheel Needle Bearing Or Ball Bearing, Replacing

Special tools and workshop equipment required 

• Press Piece - 37mm VW416B
• Bearing Installer - Differential Bearing VW511
• Press Piece - Bushing - 50mm Diameter VW554
• Press Piece - Multiple Use 30-11
• Press Piece - Multiple Use 0-23
• Bearing Installer - Wheel Bearing 3345
• Puller - Kukko Internal - 20-30mm 21/4
• Puller - Kukko Internal - 28-37mm 21/5

NOTE:

Replacing the needle or ball bearing and the shaft seal on a "Sachs" clutch is identical to a "LuK" clutch.

If the surface of the input shaft is visibly damaged near the needle bearing in the dual mass flywheel -arrow-, then replace both the input shaft and the needle or ball bearing  .

Fig 1: Checking Input Shaft For Wear

Courtesy of AUDI OF AMERICA, LLC

Depending on the version, the ball bearing or needle bearing may have all rollers installed or it may be missing every 4th roller.

Fig 2: Checking Needle Bearing Inside Dual Mass Flywheel On Vehicles With 4-Cylinder TDI Engine (Except On 125 kW TDI)

Courtesy of AUDI OF AMERICA, LLC

If needle bearing -B- is missing every 4th roller -arrows-, it must be replaced on 4-cylinder TDI vehicles (except 125 kW TDI). Refer to DUAL MASS FLYWHEEL NEEDLE BEARING OR BALL BEARING, REPLACING .

On all other vehicles, the missing 4th roller is not a defect in the needle bearing. Do not replace the needle bearing!

New needle bearings are completely equipped with rollers -A- or with balls -C-.

Depending on the manufacture vehicles with 4-cylinder TDI engines (except 125 kW-TDI) the following bearing is installed:

• >>LuK<< dual mass flywheel: needle bearing -A-, completely equipped with rollers.
• >>Sachs<< dual mass flywheel: ball bearing -C-.
• Allocate correct components.

Removing

• The clutch pressure plate and clutch plate are removed from the dual mass flywheel. Refer to CLUTCH, REMOVING AND INSTALLING, "Sachs"  or CLUTCH, REMOVING AND INSTALLING, "LuK" .

Fig 3: Removing Shaft Seal From Dual Mass Flywheel

Courtesy of AUDI OF AMERICA, LLC

-- Tension the Internal Puller -A- behind the sealing lip on the shaft seal -B- and pry out the seal.

A - Internal Puller 30 to 37 mm, for example, Puller - Kukko Internal - 28-37mm 21/5

Fig 4: Removing Needle Bearing From Dual Mass Flywheel

Courtesy of AUDI OF AMERICA, LLC

• Always replace the needle bearing after removing from the dual mass flywheel

-- Remove the shaft seal from the dual mass flywheel. Refer to Fig 3.

-- Install the Internal Puller -A- near the seal -arrow- in the needle bearing and tighten down on it.

A - Puller - Kukko Internal - 20-30mm, for example 21/4

-- Install the Bearing Installer - Clutch Housing/Gearbox Bearing VW554 on the Internal Puller and remove the needle bearing.

Fig 5: Installing Dual Mass Flywheel Needle Bearing

Courtesy of AUDI OF AMERICA, LLC

-- Remove any grease still on the hole for the needle bearing inside the dual mass flywheel using a dry towel.

-- Support the dual mass flywheel -1- directly beneath bearing mount -arrow- using Bearing Installer - Differential Bearing VW511.

-- Install the Press Piece - Multiple Use 30-11 with the small diameter into the needle bearing -A-. The side of the needle bearing with the writing (the larger metal thickness) faces the thrust pad.

Fig 6: Installing Needle Bearing

Courtesy of AUDI OF AMERICA, LLC

-- Carefully install the needle bearing all the way in.

Fig 7: Installing Shaft Seal Into Dual Mass Flywheel

Courtesy of AUDI OF AMERICA, LLC

• The needle bearing is installed inside the dual mass flywheel.
• The open side of the shaft seal faces the transmission.

-- Install the shaft seal all the way.

-- Attach the clutch pressure plate with the clutch plate to the dual mass flywheel. Refer to CLUTCH, REMOVING AND INSTALLING, "Sachs"  or CLUTCH, REMOVING AND INSTALLING, "LuK" .