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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 965 (Seats - Repair Instructions) >> Front Seat, Comfort >> 52 17 025 Removing and installing/replacing drive for active seat, left or right

52 17 025 Removing and installing/replacing drive for active seat, left or right

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.

The active seat has diagnostic capabilities.

The system voltage must be > 11.6 volts.

If necessary, connect DIS Tester or MoDiC III and reset fault memory.

Check function.

Move backrest forward to maximum extent.

Move front seat back/upwards

until screws (1) are accessible.

Release screws (1) on front seat.

Installation 

  1. Replace screws (microencapsulation).
  2. Tightening Torque,
  3. refer to SEATS - TIGHTENING TORQUES - 540i .
Fig 1: Releasing Screws On Front Seat
G03154124Courtesy of BMW OF NORTH AMERICA, INC.

Raise front seat (1) until support (2) is free of sleeve (3) on left/right.

Do not move front seat completely backwards (cable).

Fig 2: Raising Front Seat
G03154125Courtesy of BMW OF NORTH AMERICA, INC.

Raise front seat a little.

Feed cable (1) for belt tensioner (2) out of support (3).

Disconnect plug connection from servodrive for longitudinal seat adjustment.

Fig 3: Feeding Cable For Belt Tensioner
G03154126Courtesy of BMW OF NORTH AMERICA, INC.

Tilt front seat (electric) back

so that it does not yet touch rear seat bench.

Lift out detents (2).

Detach control module (1) with supports (3).

Release cable strap (4).

Unhook cable (5) from support on pump housing.

Fig 4: Detaching Control Module With Supports
G03154127Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1) from control module (2).

Fig 5: Disconnecting Plug Connection
G03154128Courtesy of BMW OF NORTH AMERICA, INC.

Detach cable strap (1) at top from insulating cloth (2).

Fig 6: Detaching Cable Strap (1 of 2)
G03154129Courtesy of BMW OF NORTH AMERICA, INC.

Detach cable strap (1) at bottom from insulating cloth (2).

Fig 7: Detaching Cable Strap (2 of 2)
G03154130Courtesy of BMW OF NORTH AMERICA, INC.

Detach cable strap (1) from hose (2).

Slide insulating cloth (3) to one side.

Fig 8: Detaching Cable Strap And Sliding Insulating Cloth (3) To One Side
G03154131Courtesy of BMW OF NORTH AMERICA, INC.

Snap out catches (1) from wire (2) to foam.

Feed out right tray (3) to center from wire.

Remove left tray (4) in same way as tray (3).

Fig 9: Snap Out Catches (1) From Wire (2) To Foam, Feed Out Right Tray (3) To Center From Wire And Removing Left Tray (4) In Same Way As Tray (3)
G03154132Courtesy of BMW OF NORTH AMERICA, INC.

Fit trays (1) and (2) together.

Feed trays (1) and (2) with pump (3) out of seat subframe.

Fig 10: Identifying Trays
G03154133Courtesy of BMW OF NORTH AMERICA, INC.

The active seat unit comprises the following components, which must not be separated:

  1. Pump
  2. Hydraulic bubble (R), right
  3. Hydraulic bubble (L), left
    Fig 11: Identifying (1) Pump, (2) Hydraulic Bubble (R), And (3) Hydraulic Bubble (L)
    G03154134Courtesy of BMW OF NORTH AMERICA, INC.

Place removed active seat unit on a clean surface.

Turn hydraulic bubble (1) over and cut through clips (2) with side cutting pliers.

Remove left tray in same way as right tray.

Installation 

  1. Fit new clips (2).
Fig 12: Turning Hydraulic Bubble Over And Cutting Through Clips
G03154135Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

  1. Place tray (1) as illustrated under hydraulic bubble and connect with new clips.
  2. Connect left tray in mirror image fashion.
  1. Tray
  2. Opening for hydraulic hose (6)
  3. Hydraulic bubble (R), right
  4. Retaining lug on underside of hydraulic bubble
  5. Designation of hydraulic bubble (R), right (direction of travel)
  6. Hydraulic hose
    Fig 13: Identifying Tray And Hydraulic Hose Components
    G03154136Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

  1. After installing hydraulic bubbles (2) and (3) with trays, place active seat unit on a clean surface.
  2. Check all components for damage.
  3. The hydraulic bubbles (2) and (3) must rest on the surface without torsion (as shown in illustration); turn hydraulic bubble if necessary.
  4. For assembly, fold hydraulic bubbles together and place in seat subframe.
  1. Pump
  2. Hydraulic bubble (R), right
  3. Hydraulic bubble (L), left
    Fig 14: Identifying (1) Pump, (2) Hydraulic Bubble (R), And (3) Hydraulic Bubble (L)
    G03154137Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

  1. Feed in trays (1) and (2) that have been fitted together with pump (3).
Fig 15: Identifying Trays
G03154138Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

  1. Once active seat unit has been fed in, fold open hydraulic bubbles (1) and (2).

The hydraulic bubbles (1) and (2) must now rest on the surface without torsion (as shown in illustration).

Turn hydraulic bubbles if necessary.

Connect plug (3) to control module (4).

Check function.

Fig 16: Checking Function
G03154139Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

  1. Make sure that hydraulic lines (1)
  2. are correctly laid (position, kink-free)
  3. to wiring harness (2) and to air line (3).
CAUTION: If a hydraulic line (1) has been kinked, replace the active seat unit.
Fig 17: Ensuring Hydraulic Lines Are Correctly Positioned
G03154140Courtesy of BMW OF NORTH AMERICA, INC.
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