52 17 054 Removing And Installing/Replacing Adjusting Unit (Active) For Seat Back Width Adjuster On Left Or Right Front Seat (M5)

WARNING: This page is about a different car, the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2006 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove FRONT SEAT
Partially remove BACKREST COVER for front seat

NOTE:

The right side is removed in the same way as the left side.

IMPORTANT:

Draw off chips during drilling operation.

Also cover rotary adjuster. Risk of lock blockage due to chips entering system.

Drill out rivets (1).

Carefully feed adjusting unit (2) out of backrest frame.

NOTE:

Remove all remnants of rivets.

Fig 1: Removing Adjusting Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock plug connections (1) and disconnect.

Fig 2: Identifying Plug Connections And Units

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE:

Carry out function check while removed with special tool 61 2 070 only.

Installation:

Carry out initialization while BMW diagnosis system is installed.

Alternatively the initialization can also be carried out manually.

Move drive mechanisms to fully open and hold down switch for at least 15 seconds.