BMW X5 Series E70 Trunk Lid Boot Tailgate Bottom Support 7149631

BMW X5 E70 Rear Tailgate Actuator 7149631 is an original part designed for the rear of the vehicle, responsible for the stable and predictable lifting and lowering of the tailgate. Thanks to its construction in line with BMW standards, it ensures proper tailgate guidance, maintaining user comfort and safety. This is a practical solution for drivers who want to restore the correct operation of their tailgate after the factory actuator has worn out.

Specifications and technical data

• SKU: 7149631
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7149631
• Substitutable numbers: 51247149631, 7149631, PK
• Location on the vehicle: Rear
• Category: Other Exterior Parts & Accessories

Purpose and Function in the Vehicle

The tailgate actuator in the BMW X5 E70 is responsible for the controlled movement of the tailgate in the rear area of the vehicle. Its tasks include:

• maintaining the tailgate in a stable position when open,
• damping movement during closing,
• ensuring repeatable operation under typical SUV operating conditions.

Its location in the rear body section means this component operates in variable conditions – from low temperatures to loads resulting from frequent trunk opening. A functional actuator reduces the risk of the tailgate dropping spontaneously and improves the ergonomics of daily car use.

Technical Characteristics and Fitment

The presented actuator is part of the BMW OE group, which means it retains the factory mounting geometry and is compatible with the original tailgate construction in the X5 E70 model. Thanks to this:

• it fits the designated mounting location in the rear of the body,
• it works with the factory mounting points,
• it allows for installation without the need for structural modifications.

The presence of the OEM part number and interchangeable numbers in the technical specification allows for precise verification of compatibility with a specific vehicle equipment version. This is particularly important when selecting components for the tailgate lifting system in premium class cars.

Component Condition and Service Application

The tailgate actuator comes from the secondary market, making it a cost-effective solution while maintaining original construction. This type of component is often chosen in situations where:

• the factory actuator has lost its ability to hold the tailgate in the upper position,
• the tailgate drops or operates unevenly,
• a single component needs replacement without affecting other tailgate elements.

For workshops and individual users, this means the possibility of restoring correct tailgate operation while maintaining the original mounting specifications. A used OEM part often offers a better fit than universal aftermarket replacements.

Benefits of Using an Original BMW Actuator

Using a tailgate actuator dedicated to the BMW X5 E70 translates into a number of practical benefits:

• maintaining the factory characteristics of tailgate opening and closing,
• reducing the risk of overloading the tailgate hinges and mountings,
• better cooperation with other elements of the rear body.

For the user, this means more convenient access to the luggage space and more predictable tailgate behavior in daily use. Consistency with BMW's design also contributes to maintaining the proper level of safety during servicing and operation.

If you are planning a comprehensive repair or upgrade of the rear section of your BMW and need other parts from the same group, such as actuators, locks, or tailgate guides, check the available parts in the Other BMW category.

Technical Support and Knowledge of Sporty Designs

When selecting body parts and tailgate hardware, it is beneficial to know the design differences between individual model lines and high-performance versions. In the context of comparing technical solutions – from engines, through brakes, to chassis – an article discussing the specifics of RS sports variants against standard models can be helpful. More information can be found in the material: Audi RS vs. Other Models – What's Under the Hood and Chassis?.