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 17 other vehicles, including the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2007 BMW 530xi. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply with NOTES ON PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION) .

Illustration of problem: (replacement only)

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.

Seat module up to 03/2005 approx. 135 mm
Seat module from 03/2005 approx. 165 mm

This results (on the right seat only) in a collision with the central seat connector.

In vehicles up to 03/2005 it is therefore necessary to fit the right seat with a new seat pan (applicable from 03/2005).

The following SM variants are affected:

SM H
SM BA/M
SM BA/M-HK

Necessary preliminary tasks:

Disconnect BATTERY NEGATIVE LEAD .
Remove TRIMS FOR TOP RAIL .

Removal and installation:

NOTE: To facilitate installation/removal of control unit, move seat upwards fully.

Unlock and disconnect all plug connections in area (1).

Unlock catches (2) towards rear, feed out control unit for seat adjustment (3) in direction of arrow and remove from seat rail (4).

Fig 1: Removing Control Unit For Seat Adjustment

G03262259

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 2: Installing Control Unit For Seat Adjustment

G03262260

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Remove trim for top rail on outside.

Unlock central seat connector (1) and disconnect.

Unlock and disconnect all plug connections from connector strips (2).

Fig 3: Disconnecting Central Seat Connector

G03262261

Courtesy of BMW OF NORTH AMERICA, INC.

Pull seat pan (1) forwards slightly and unclip from seat linkage.

Lift seat pan at rear left and right out of seat rail.

Fig 4: Pulling Seat Pan

G03262262

Courtesy of BMW OF NORTH AMERICA, INC.

Turn seat pan in seat mechanism and feed out towards front.

Unclip seat wiring harnesses from seat pan.

Remove seat pan.

Fig 5: Removing Seat Pan

G03262263

Courtesy of BMW OF NORTH AMERICA, INC.

The new seat module is secured to the new seat pan in the area marked "R".

Wiring harness (1) must be re-laid accordingly.

Pay attention to new clip positioning (2).

Fig 6: Identifying Wiring Harness And Clip Positioning

G03262264

Courtesy of BMW OF NORTH AMERICA, INC.

Carry out PROGRAMMING/CODING .