Mercedes-Benz E-Class W210 Diesel Engine Rear Undertray Protection Cover Panel

Mercedes-Benz E-Class W210 Diesel Engine Rear Undertray Protection Cover Panel is a factory body component designed to protect the rear part of the engine bay in diesel engine versions. Its robust construction helps reduce dirt accumulation and the impact of external factors on components, improving the vehicle's durability and driving comfort.

Specifications and technical data

• SKU: A2105202223
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2105202223
• Substitutable numbers: A2105202223, A 210 520 22 23, BG
• Location on the vehicle: Rear
• Fuel type: Diesel
• Category: Splash Guards & Mud Flaps

Purpose and technical function

The presented rear undertray is dedicated to Mercedes E-Class W210 models with a diesel engine. The component is mounted in the rear section of the engine bay, where it is responsible for:

• protecting components against water, mud, and minor road impacts,
• stabilizing airflow under the vehicle,
• reducing the splashing of contaminants onto mechanical parts and the bodywork,
• supporting the maintenance of proper acoustics for the engine unit.

Thanks to its design tailored to the specific body and drivetrain version, the cover works with factory mounting points, which facilitates installation and maintenance.

Construction and fitment for Mercedes E-Class W210

The cover has been designed as a body component consistent with the geometry of the E-Class W210 undercarriage, ensuring precise fitment with other protective panels. Its shape and contours are adapted to guide airflow and accommodate mechanical components in the rear of the engine bay.

As a part from the Mudflaps category, the panel also serves to limit the splashing of water and debris from the wheels onto the rear part of the engine compartment and undercarriage. This is particularly important in daily use on roads with poor surfaces, where components are exposed to intense contact with water, salt, and small stones.

Condition, origin, and service application

The item comes from disassembly and is offered as a used original Mercedes part, which ensures the preservation of factory geometry and compatibility with factory mounting points. This type of panel is particularly useful for:

• post-accident repairs of the rear engine bay area,
• replacing missing cover components after previous repairs,
• restoring the completeness of underbody covers in vehicles operated in harsh conditions.

Choosing an original, used cover allows for proper fitment without the need for modifications, which shortens installation time and facilitates workshop work.

Benefits of installing the rear undertray

Using this panel in a Mercedes E-Class W210 with a diesel engine provides a number of practical operational benefits:

• Better component protection – limiting direct contact of mechanical elements with water, mud, and road salt.
• More stable underbody aerodynamics – more orderly airflow in the rear of the engine bay.
• Aesthetics and body completeness – restoring the factory look of the vehicle's underside.
• Support for long-term operation – lower risk of accelerated corrosion and dirt accumulation in the area of sensitive components.

Related body components and additional information

If you are planning a comprehensive repair or upgrade of the rear underbody area in your Mercedes and need other components from the same group, such as additional cover panels, mudguards, or supplementary wheel arch covers, check the available parts in the Mercedes Mudflaps category.

For more extensive bodywork and paint repairs, as well as when selecting used body parts, it is worth checking the practical tips regarding post-accident repairs and the selection of parts from disassembly, described in the article Bodywork and chassis – post-accident repairs using parts from disassembly.