BMW 3 5 6 Z4 Series E46 E60 E63 E64 E85 E86 Trunk Tailgate Catch Bracket

BMW E46 E60 E63 Trunk Latch Lock Bolt Rear is an original part from the switches, control elements, and ignition switches group, designed for installation in the rear of the body. This is a practical solution for users who want to restore the proper function of their BMW's trunk latch, maintaining the factory design and solid construction.

Specifications and technical data

• SKU: 8203771
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7840618
• Substitutable numbers: 51247840618, 7840618, 51248203771, 8203771
• Location on the vehicle: Rear
• Category: Switches & Controls

Purpose and Function of the Rear Trunk Latch Lock Bolt

The rear trunk latch lock bolt is responsible for mechanically locking and releasing the trunk lid, working in conjunction with the lock and the body control system. In BMW E46, E60, and E63 models, this is a crucial component ensuring:

• secure closing of the rear lid while driving,
• stable holding of the lid in the closed position,
• proper cooperation with the opening mechanism via button or remote control,
• consistency with the vehicle's factory security system.

Thanks to its original geometry and mounting points, the bolt allows for precise fitting with the lid and other lock components.

Construction and Vehicle Placement

The presented bolt is specifically designed for installation in the rear of the vehicle, within the trunk lid area. Its construction is adapted to the stresses resulting from daily use, frequent opening and closing, and operation in varying weather conditions.

This element belongs to the Switches, Control Elements, and Ignition Switches category, meaning it works with the lock control system and can be part of a larger system responsible for lid operation. Correct placement on the vehicle minimizes the risk of stress and ensures smooth operation of the locking mechanism.

Benefits of Using an Original BMW Bolt

Using an original rear trunk latch lock bolt in a BMW E46, E60, or E63 offers a range of practical benefits:

• Factory Fit – compatibility with the lid and lock design, with no modifications required.
• System Consistency – correct cooperation with the vehicle's electrical system and security system.
• Stable Mechanism Operation – reduction of play and unwanted noises while driving.
• Ability to use existing mounting points – faster installation and servicing.

This solution is particularly beneficial for repairs after mechanical damage to the lid, problems with closing, or replacement of worn lock components.

Condition and Practical Application

The bolt is a used part, allowing for an economical restoration of the lock system's functionality while maintaining original BMW specifications. This type of element is often chosen by workshops specializing in the brand and by users who value original design solutions.

Before installation, a standard check of the mechanism's proper operation and verification of compatibility with the specific vehicle body version and equipment are recommended. A correctly chosen rear trunk latch lock bolt can eliminate common issues such as the lid not closing properly, requiring forceful pressing, or occasionally opening while driving over uneven surfaces.

Other BMW Switches, Control Elements, and Ignition Switches

If you are also looking for other BMW switches, control elements, and ignition switches for your car, check out the BMW switches, control elements, and ignition switches available in our store to find complete solutions for your body control system.

More About Used Premium Parts

If you want to learn more about the cost-effectiveness of using used components in premium cars, read the article on our blog: used parts for Mercedes – original parts from dismantling, where we discuss the practical aspects of choosing original second-hand elements.