Mercedes-Benz A B W169 W245 Rear Bumper Air Vent Ventilation Flap A1698300042

Mercedes-Benz A B W169 W245 Rear Bumper Air Vent Ventilation Flap is an original body ventilation system component designed for installation in the rear of the vehicle. It ensures controlled airflow from the cabin to the outside, stabilizing pressure and supporting the proper functioning of seals and body panels. Thanks to its factory design, it is a solution perfectly matched to the specifications of the Mercedes A-Class and B-Class models of the discussed generations.

Specifications and technical data

• SKU: A1698300042
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1698300042
• Substitutable numbers: A1698300042, A 169 830 00 42, EM
• Location on the vehicle: Rear
• Category: Bumpers & Reinforcements

Purpose and function of the component

The described rear bumper ventilation flap is part of the body venting system in Mercedes A-Class and B-Class W169 and W245 series cars. Mounted in the rear zone of the body, it works with the bumper structure and reinforcements, allowing for controlled air discharge from the cabin when closing doors, or while the ventilation or air conditioning system is running. A properly functioning flap reduces unwanted noise, minimizes drafts inside the cabin, and helps maintain stable pressure conditions.

Construction and fitment to the rear bumper

The element has been designed as part of the Bumpers and reinforcements system, taking into account the geometry of the rear body section. The flap construction is based on a housing integrated with movable ventilation slats that open when the pressure inside the vehicle increases and remain closed at rest. This solution:

• limits the ingress of water and contaminants from the outside,
• stabilizes airflow at various driving speeds,
• supports the proper operation of the heating and air conditioning system.

Due to its factory origin, the flap is precisely matched to the intended mounting location in the rear of the body, which facilitates installation and ensures proper sealing.

Benefits of using an original ventilation flap

Using an original ventilation flap in the rear bumper area provides a number of practical operational benefits. The most important include:

• Stable cabin pressure – proper venting makes closing doors easier and improves acoustic comfort.
• Better ventilation system performance – efficient airflow supports heating and air conditioning efficiency.
• Reduction of drafts and outside noise – the flap acts as a one-way valve, reducing unwanted air turbulence.
• Factory fitment to the body – no need for modifications to the bumper or reinforcements.

In case of damage or leaks to this component, unpleasant noises, increased window fogging, or ventilation system malfunctions may occur, which is why replacing it with a functional component is important for the comfort of using the vehicle.

Characteristics of the used product

The offered ventilation flap comes from dismantling and is classified as a used part. This means it bears signs of use typical for elements mounted in the rear of the body, while maintaining the functionality required for further use. This type of solution is cost-effective and at the same time allows for maintaining the original ventilation system design in Mercedes A-Class and B-Class cars of the discussed generations.

If you are considering choosing between new and used components and want to better understand the differences in terms of durability, quality, and cost-effectiveness, it is worth reading our guide Car parts – new or used? We compare costs, quality, and durability, which helps you consciously choose a solution for your specific budget and vehicle usage.

Complementary Mercedes body elements

If you are planning a comprehensive repair or upgrade of the rear bumper zone in your Mercedes and need other elements from the same group, such as reinforcements, beams, or additional covers, check out the available parts in the Mercedes Bumpers and reinforcements category.

Summary

Mercedes-Benz A B W169 W245 Rear Bumper Air Vent Ventilation Flap is a practical, factory-made body venting system element designed for installation in the rear of the vehicle. It ensures proper airflow from the cabin, supports acoustic comfort, and ensures the correct operation of the ventilation system. Choosing an original, used component allows you to maintain compliance with the manufacturer's design while optimizing the costs of repair or modernization of the rear body zone.