Audi A4 B8 Trunk Lid Lock Tailgate Boot Latch Catch Mechanism Rear 4E0827645A

Audi A4 B8 Trunk Lid Lock Tailgate Boot Latch Catch Mechanism Rear is a precision locking mechanism for the rear lid, designed specifically for models in this series. This component from the Tailgates and rear parts group is responsible for securely latching and safely holding the trunk lid in the closed position, which directly impacts user comfort and the protection of transported cargo. Thanks to its design, which complies with the manufacturer's standards, it serves as a functional solution for rear bodywork repairs.

Specifications and technical data

• SKU: 4E0827645A-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 4E0827645A
• Substitutable numbers: 4E0827645A, 4E0 827 645 A, 4F5827505D, 4F5 827 505 D
• Location on the vehicle: Rear
• Part type: Bootlid
• Category: Boot & Hatch Lids

Purpose and function of the trunk lid lock

The described lock mechanism is installed in the rear of the vehicle and works with the trunk lid, ensuring stable locking while driving. It is responsible for:

• mechanically locking the lid once closed,
• working with opening rods or actuators,
• maintaining proper pressure of the lid against the seals, which reduces noise and the ingress of contaminants. Due to its fitment to the Audi body design, the lock operates in a predictable manner, which facilitates diagnostics and potential adjustments after installation.

Construction and fitment for Audi

The mechanism has been developed with the rear body zone of the Audi in mind, maintaining the geometry of the mounts and compatibility with factory lid components. This means that:

• the placement of mounting points is consistent with the original design,
• the lock works with the factory lid catch and the vehicle's electrical system,
• there is no need for structural modifications within the rear body area. Such fitment translates into stable trunk lid operation and the preservation of the factory body lines when closed.

Use in rear bodywork repairs

Replacing the trunk lid lock is recommended in situations where there are problems with closing, accidental opening, or unstable holding of the lid. This component is particularly useful when:

• mechanical damage to the lock has occurred as a result of a rear-end collision,
• the mechanism shows signs of wear, causing play or irregular operation,
• it is necessary to restore proper lid locking after body and paint repairs. Selecting a lock compatible with the Audi design reduces installation time and facilitates adjustment after the repair is completed.

Benefits of using an original solution

Using a mechanism designed for a specific Audi series provides a number of practical benefits:

• secure lid locking – reducing the risk of accidental opening while driving,
• maintaining proper closing geometry – the lid aligns with the body line,
• compatibility with factory rear vehicle components – the catch, hinges, and seals. As a result, the lock is a functional element that restores full utility to the luggage compartment and ensures the proper operation of the rear body zone.

Expanding Audi rear body repairs

If you are planning a comprehensive repair or upgrade of the rear body zone in your Audi and need other items from the same group, such as lid hinges, lifting actuators, or additional mounts, check out the available parts in the Audi Tailgates and rear parts category. For vehicle owners interested in a broader approach to modifications and the selection of used components, guide materials may be useful – for example, an article on selecting and installing a Mini sports exhaust system, available at the link Used Mini John Cooper Works Pro sports exhaust – a legal way to get a race-inspired sound and +7 HP, which demonstrates a practical approach to using second-hand parts.