Backrest Adjusting Wheel

Special tools and workshop equipment required 

• Assembly tool 3399
  Fig 1: Identifying Assembly Tool 3399

  Courtesy of AUDI OF AMERICA, LLC

Removing 

Fig 2: Identifying Backrest Adjustment Wheel

Courtesy of AUDI OF AMERICA, LLC

-- Turn the backrest adjustment wheel -1- until a locking mechanism is visible from behind -arrow A-. It may be necessary to use a flashlight.

-- Engage Assembly Tool 3399 and pry it in direction of -arrow B-.

-- Turn backrest adjustment wheel about 120° more.

-- Engage Assembly Tool 3399 and pry it in direction of -arrow B-.

-- Remove backrest adjustment wheel.

Installation 

Install in reverse order of removal. Note the following:

-- If backrest adjustment wheel is too loose after installation, replace wheel.