Trunk Lid Switch BMW G20 G30 G31 Button Opener Open Tailgate Boot 9327029

Visual condition of the part

The product shows signs of use visible in the photos.

Trunk Lid Switch BMW G20 G30 G31 Button Opener Open Tailgate Boot is an original trunk lid control component designed for the latest generation 3 and 5 Series models. This tailgate release button provides a convenient, precise signal for the electrical system, enabling smooth operation of the lid opening and closing functions. Thanks to its factory design, it integrates perfectly with the BMW electrical system and the styling of the rear bodywork.

Specifications and technical data

• SKU: 9327029-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9327029
• Substitutable numbers: 9327029, 61319327029
• Category: Switches & Controls

Function and application in BMW G20, G30, G31

The offered switch is a component from the Switches, control elements and ignition locks group, responsible for transmitting the trunk lid open signal to the vehicle's control modules. Mounted within the trunk lid, it works with the factory wiring and the comfort access system, if the vehicle is equipped with one.

• Support for electric or manual lid opening (depending on vehicle configuration).
• Precise operation while maintaining factory electrical parameters.
• Full integration with BMW safety and comfort systems.

By maintaining the original design, the switch ensures stable operation of the lid control system and proper interaction with the vehicle's body electronics.

Construction and integration with the electrical system

The trunk lid release button is designed as an OEM component, which means its geometry, connectors, and mounting method comply with BMW's factory requirements. This facilitates installation and eliminates the need for wiring modifications.

• Dedicated electrical connector matched to the wiring harness in G20, G30, G31 models.
• Housing adapted for operation in the rear body area, exposed to temperature changes and humidity.
• Button with a tactile feel, providing clear confirmation of the press.

Such a solution allows for maintaining consistency of operation with other control elements in the vehicle, without the risk of communication errors in the car's electronic network.

Benefits of using an original trunk lid switch

Using an original switch in the BMW G20, G30, and G31 series primarily ensures compatibility and predictable behavior of the electrical system. Compared to replacements, the OEM component minimizes the risk of module communication issues, dashboard errors, or unstable lid operation.

• Proper fit to the lid paneling and trim elements.
• Electrical parameters consistent with the vehicle manufacturer's requirements.
• Ability to use existing mounting points and wiring harnesses.

Thanks to this, the switch represents an effective service solution for trunk opening system repairs, whether following a failure or mechanical damage to the rear bodywork.

Condition and performance characteristics

The item comes from disassembly and is offered as a used BMW OEM component. This means it retains factory specifications while providing an economical solution compared to a new part. In practice, this allows for restoring full trunk lid functionality while reducing repair costs.

The switch is suitable for users who expect consistency with the vehicle's original equipment and want to avoid problems typical of low-quality replacements, such as unstable operation or improper fitment.

If you are planning a comprehensive repair or upgrade of the rear body area in your BMW and need other components from the same group, such as buttons, switches, or control modules, check the available parts in the BMW Switches, control elements and ignition locks category.

For drivers also considering the use of used components in premium cars, including vehicles of other brands, a guide describing the selection of original parts from disassembly may be helpful – more information can be found in the article about used Mercedes parts and original components from disassembly.