Mercedes SLK R172 Roadster Rear Bumper Vent Flap Left N/S A1728300042

Mercedes SLK R172 Roadster Rear Bumper Vent Flap Left N/S is a precisely engineered body component responsible for controlled airflow in the rear section of the vehicle. As an original Mercedes component, it ensures proper airflow guidance behind the bumper, which promotes body stability and the correct operation of components installed in this area. This used sub-assembly allows for an economical, yet technically correct repair of the rear of the car.

Specifications and technical data

• SKU: A1728300042
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1728300042
• Substitutable numbers: A1728300042, A 172 830 00 42
• Location on the vehicle: Rear, Left
• Category: Bumper Inserts & Covers

Purpose and technical function

The rear bumper vent flap in the SLK R172 model is responsible for proper air extraction from the space behind the bumper and from inside the body. A properly functioning component:

• stabilizes airflow in the rear part of the vehicle,
• reduces the formation of unwanted turbulence,
• supports the maintenance of airtightness and proper pressure in the cabin,
• reduces the risk of unwanted noises and resonances in the bumper area.

Its location in the rear left side area of the body makes this component essential for post-accident repairs, bumper replacement, or restoring the factory geometry of the rear assembly.

Fitment for Mercedes SLK R172 body

The flap has been designed specifically for the bumper construction of the Mercedes SLK R172 generation, taking into account the shape of the paneling, air guidance, and factory mounts. Thanks to this:

• it fits original mounting points without the need for modifications,
• it maintains the body line and the ventilation gap layout intended by the manufacturer,
• it enables the restoration of the correct operation of the ventilation system in the rear part of the vehicle after mechanical damage.

Proper fitment to the bumper construction translates into stable mounting and reduces the risk of play, rattling, or leaks during operation.

Characteristics of the used component

The offered vent flap comes from the Bumper inserts and covers parts group, which means it is intended for operation in a demanding external environment – exposed to temperature changes, moisture, and road debris. A used component is a good solution when the goal is:

• restoring full functionality of the rear bumper after a collision,
• replacing a missing component after disassembly or modifications,
• reducing repair costs while maintaining the original construction.

The used condition allows for an economical repair while maintaining factory geometry and compatibility with other rear assembly components.

Benefits of using an original vent flap

Using an original vent flap in a Mercedes SLK R172 brings a number of practical benefits:

• preservation of the airflow in the rear part of the body as intended by the manufacturer,
• reduction of the risk of improper bumper and adjacent component alignment,
• maintenance of proper acoustic comfort in the cabin,
• consistency with other body ventilation system components.

For users who care about the technical correctness of the repair and the aesthetics of the rear of the vehicle, choosing an original component from this group is a safe and predictable solution in terms of assembly.

Expanding rear bumper modernization

If you are planning a comprehensive repair or modernization of the rear bumper zone in your Mercedes and need other components from the same group, such as inserts, covers, or additional panels, check the available parts in the Mercedes bumper inserts and covers category.

While working on the body, it is also worth taking care of comfort inside the vehicle – the article Premium interior for half the price: second-hand seats, steering wheels, and multimedia, which discusses issues of compatibility, selection, and installation of used components, can help in the optimal selection of cabin equipment elements.