51 70... Fitting seals

2009 BMW 550i Standard, GS653BZSECTION 51 70... Fitting seals
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NOTE: All seals on the vehicle must be removed with the utmost care. Incorrect fitting may result in among other things wind noises and water ingress, and may compromise closing and opening comfort.
  • The following instructions always apply:Β 

    Seals which are attached to the side frame can be removed and fitted as often as desired.

  • Seals must not be damaged or cracked.
  • The clamping area must be pressed together by hand to such an extent that rigid attachment to the side flange is still possible. The sides of the seal are permitted to touch each other slightly. A fully compressed seal is not permitted.
    Fig 1: Identifying Proper Position Of Seals
    G06885975Courtesy of BMW OF NORTH AMERICA, INC.
  • A special tool to press the clamping area together is not needed. Careful fitting by hand is sufficient.
  • The seals must always be fitted over their full extent. There is no defined pressing force.
  • If seals are repeatedly removed and fitted in the rear lid area, a new seal must be fitted (water ingress in event of sheet flaws).
  • Seals must be checked after fitting for correct seating. If necessary, the seals must be lifted over the adjacent components with a suitable tool. Adjacent components must not be damaged.
  • Seals must be replaced when the metal insert in the seal is visible (corrosion).
    Fig 2: Identifying Improper Position Of Seals
    G06885976Courtesy of BMW OF NORTH AMERICA, INC.
  • The clamping area must be uniform.
    Fig 3: Identifying Clamping Area
    G06885977Courtesy of BMW OF NORTH AMERICA, INC.
  • Joint seals which are fitted with plastic clips must rest rigidly on the body. Otherwise, the clips or the joint seal must be replaced.
Fig 4: Identifying Joint Seals And Plastic Clips
G06885978Courtesy of BMW OF NORTH AMERICA, INC.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.