Drive Pinion, Disassembling And Assembling

The disassembling and assembling of the pinion is currently only possible on vehicles without reinforcement.

The pinions can only be differentiated on the sleeve -Item  : Sleeve or preload sleeve -Item  : Circlip.

Courtesy of AUDI OF AMERICA, LLC

Special tools and workshop equipment required 

• Press Plate: VW 401 
• Press Plate: VW 402 
• Press Piece - Multiple Use: VW 412 
• Press Piece - 60mm: VW 415A 
• Inductive Heater: VAS 6414 
• Circlip Pliers: VAS 5503A 

Special tools and workshop equipment required 

• Splitter (Kukko 17/2): VAS 251 411 

  Courtesy of AUDI OF AMERICA, LLC

• Extracting Tool - Thrust Piece: T40413/13 

Remove the circlip for the preload sleeve 1 from the pinion

• Position the Thrust Piece: T40413/13  on the pinion -2- so that the groove on the circlip -1- is in the center of the large opening on the Thrust Piece: T40413/13  .

A -  Press Piece - Multiple Use: VW412 

B -  Extracting Tool - Thrust Piece: T40413/13 

C -  Circlip Pliers: VAS 5503A 

D -  Press Plate: VW 402 

-- Push the preload sleeve together until the circlip -1- can be removed from the groove of the pinion -2-.

Remove the double angular contact ball bearing 2

-- Secure the pinion -3- from falling.

1. Splitter (Kukko 17/2): VAS 251 411 

• If the lower inner race of the double angular contact ball bearing stays on the pinion, it must be removed separately using the Splitter, for example KUKKO 17-2: VAS 251 411  -1-.

Remove the inner race of the double angular contact ball bearing 2

-- Secure the pinion from falling.

-- Secure the Separating Tool -1- in the groove of the inner races -arrow-.

Press the double angular contact ball bearing 1 on the pinion

• Installation position of the double angular contact ball bearing -1- : the groove all around -all arrow- points upward to the pressing tool.

-- Warm the double angular contact ball bearing using the Inductive Heater: VAS 6414  to approximately 100 °C (212 °F) and press in all the way.

Install the circlip 1 on the pinion as follows:

-- Fist install a new preload sleeve -2- in the installation position.

• Installation position of the preload sleeve: the higher collar -arrow- points to the circlip -1-.
• Push a new circlip -1- all the way on the preload sleeve.

Bring the circlip for the preload sleeve 2 into installation position

• Position the Thrust Piece: T40413/13  on the pinion so that the groove on the circlip -2- is in the center of the small opening on the Thrust Piece: T40413/13  .

A -  Press Piece - Multiple Use: VW412 

B -  Extracting Tool - Thrust Piece: T40413/13 

C -  Press Plate: VW402 

-- Carefully press the preload sleeve -1- together using the shop press.

-- The circlip must engage audibly in the pinion groove all around.

-- After pressing check that the circlip is in the groove all around.