Preparing the special tool

NOTE: TECHNICAL INFORMATION
In a profile rail pair, two profile rails are connected to one another by gearing.

Position the special tool fully on special tool 0490 133 (00 2 030) with the help of a support person.
Insert special tools 0 495 821 (31 5 255) in telescopic supports of a profile rail pair.
Insert special tools 0 495 819 (31 5 253) in telescopic supports of other profile rail pair.

Courtesy of BMW OF NORTH AMERICA, INC.

Only perform if the upper bore is not present.
Mark and perform the bore on the special tool 0 495 484 (00 9 324) according to the specified dimensions.

Introduce the bore on the side with the long shank.

The diameter of the bore is 6 mm.

Dimension (a) = 25 mm from the center of the existing bore

Dimension (b) = 50 mm from the outer edge of the special tool

Courtesy of BMW OF NORTH AMERICA, INC.