Mercedes-Benz ML W164 R W251 Diesel Engine Compartment Insulation Panel

Mercedes-Benz ML W164 R W251 Diesel Engine Compartment Insulation Panel is a factory body component designed for installation in the front part of the vehicle. It is responsible for reducing engine noise, protecting components within the engine bay, and improving acoustic comfort inside the cabin, which is particularly important in diesel-powered vehicles. Thanks to a design compliant with manufacturer standards, the panel ensures a stable fit to factory mounting points.

Specifications and technical data

• SKU: A2515240730
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2515240730
• Substitutable numbers: A2515240730, A 251 524 07 30, BG
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Splash Guards & Mud Flaps

Purpose and function in the vehicle

The engine compartment insulation panel has been designed specifically for Mercedes-Benz ML-Class W164 and R-Class W251 models with a diesel engine, with placement in the front section of the vehicle. Its task is to limit the transmission of vibrations and sounds from the power unit to the cabin, as well as to shield sensitive components in the engine bay from road debris.

In practice, this means:

• reduced noise levels during diesel engine operation,
• more comfortable acoustic conditions in the cabin,
• better protection against water, mud, and small debris from the road surface,
• maintaining an orderly, consistent layout of the front engine compartment area.

Compatibility and fitment

The offered panel is a component intended for the specific generation of the ML W164 SUV and R W251 van, which translates into precise fitment with the factory front assembly. The design, intended for installation in the front zone of the diesel engine compartment, allows for the preservation of the original geometry of the covers and proper airflow in this area.

Selecting the correct insulation panel is particularly important in vehicles with a diesel engine, where generated noise and vibrations are higher than in gasoline units. Using a component consistent with the manufacturer's design helps maintain the factory level of driving comfort and limit unwanted resonances in the front part of the bodywork.

Performance characteristics of the used component

The panel comes from the secondary market, which is a sensible choice for users looking for a functional and economical solution while maintaining the original manufacturer's specifications. The used component allows for restoring the completeness of the engine bay assembly without the need to invest in a new part, while simultaneously maintaining proper fitment to the vehicle's front structure.

Choosing an original panel from the secondary market is particularly beneficial in situations where the existing cover has suffered mechanical damage, deformation, or significant wear, affecting increased cabin noise or poorer protection of components in the engine bay.

Benefits of installing the insulation panel

The use of an engine compartment insulation panel in a Mercedes-Benz ML W164 or R W251 with a diesel engine brings a number of practical benefits:

• Improved acoustic comfort – limiting the transmission of engine operating sounds into the vehicle interior.
• Protection of engine bay components – an additional barrier against dirt and external factors.
• Maintaining factory assembly standards – a panel matched to the vehicle's front structure.
• Reasonable repair costs – a used OEM component as an alternative to a new part.

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

For drivers interested in a broader approach to optimizing service costs, especially when using parts from the secondary market, an article discussing the advantages of used OEM components may be helpful – see why used parts can be a beneficial choice for your service budget.