51 23 400 Removing and installing/replacing left or right actuator (active pedestrian protection, not deployed), vehicles up to 09/2011

WARNING: Adhere to the following SAFETY INFORMATION so as to avoid a danger of injury by the actuator.
The BATTERY NEGATIVE LEAD must be clamped off prior to work on the actuator or engine compartment lid!
Do not exert any force on the actuator.
Incorrect handling may result in triggering of the actuator and thereby cause serious injury.

IMPORTANT: After the actuator has been installed, retaining screws (1) must be removed!

The retaining screws are required as aids to fitting the actuator.

If the retaining screws are not removed after the actuator has been installed, active pedestrian protection will not function.

Fig 1: Identifying Actuator Retaining Screws

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Actuator procedure not activated:

Necessary preliminary tasks:

Clamp off BATTERY EARTH LEAD .

NOTE: When the actuators have not activated, the bonnet and gas pressure springs do not have to be removed.

Removing actuator

Remove protective caps and screw in and tighten retaining screws M8 (1).

Remove resetter (2).

NOTE: The retaining screws are required as aids to fitting the actuator.
After the actuator has been installed, retaining screws must be removed again!

Fig 2: Identifying Resetter And Retaining Screws

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Release screws (1) and slowly raise actuator (2) until connector on underside of actuator is accessible.

Fig 3: Identifying Actuator And Screws

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Pull lock (1) in direction of arrow.

Then press together connector fastener on both sides and detach connector (2).

Fig 4: Pulling Lock

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Installing actuator

Connect plug (1) to actuator.

Fig 5: Connecting Plug To Actuator

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Secure actuator screws (2).

Tighten screws hand-tight only.

Fig 6: Identifying Actuator Screws

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Insert screws (1) and tighten down

Tightening torque 41 61 5AZ .

Fig 7: Identifying Actuator Screws

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Tighten down screws (1).

Tightening torque 41 61 4AZ .

Fig 8: Identifying Actuator Screws

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Fit resetter (2).

Remove retaining screws (1).

IMPORTANT: After the actuator has been installed, retaining screws (1) must be removed again!
If the retaining screws are not removed after the actuator has been installed, active pedestrian protection will not function.

Fig 9: Identifying Resetter And Retaining Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Seal holes of retaining screws with protective caps.

Comply with notes regarding handling active PEDESTRIAN PROTECTION .