61 35 080 Removing And Installing (Replacing) Control Unit For Left Or Right Seat Adjustment (Front Seat)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: In the event of a faulty seat module, new variants with a 30 mm wider housing will be used as replacements as of 03/2005.

The following SM variants are affected:

SM BA/M
SM BA/M-HK

In the event of a repair, some cables are laid a little tauter.

Necessary preliminary tasks:

Disconnect battery negative lead . See 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD .

Unclip trim in upper rail at front (1) in direction of arrow and remove.

Fig 1: Identifying Upper Rail At Front

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip trim in upper rail on outside (1) towards top, feed out towards rear and remove.

Fig 2: Identifying Trim In Upper Rail On Outside

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For purposes of clarity, illustration shows seat frame folded up.

Disconnect plug connections (1).

Unlock catches (2) towards rear, feed out control unit for seat adjustment (3) in direction of arrow and remove.

Fig 3: Identifying Catches, Control Unit And Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure mounts (1) and retaining lugs (2) of control unit for seat adjustment (3) are correctly seated.

Fig 4: Identifying Mounts, Retaining Lugs And Control Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out coding/programming.

Observe following IDC specifications:

Programming
Coding
Car & Key Memory
CD "CIP"

Fig 5: Identifying IDC
Courtesy of BMW OF NORTH AMERICA, INC.