Mercedes W164 Rear Bumper Carrier Cross Member Support Bar A1646190122

The Mercedes W164 Rear Bumper Beam is a factory-original reinforcement for the rear body structure, designed specifically for W164 series models. This original component from the Bumpers and Reinforcements group ensures proper load transfer in rear impacts and provides stable support for the bumper cover. A used OEM part is a sensible choice for drivers seeking a technically matched solution at an attractive price.

Specifications and technical data

• SKU: A1646190122
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1646190122
• Substitutable numbers: A1646190122, A 164 619 01 22
• Location on the vehicle: Rear
• Category: Bumpers & Reinforcements

Purpose and Function of the Rear Bumper Beam

The rear bumper beam in the Mercedes W164 is responsible for the structural rigidity of the rear body zone and the correct distribution of forces in low to medium energy collisions. This element serves as a mounting base for the outer bumper cover and works in conjunction with other energy absorption system components.

Thanks to its precise fit to the W164 body geometry, the beam allows for maintaining correct gaps between the bumper and the fenders and trunk lid, which is important for both aesthetics and the proper functioning of adjacent elements.

Benefits of Using an Original Mercedes Beam

Choosing an original rear bumper beam for the Mercedes W164 primarily offers:

• preservation of the factory geometry of the rear body section,
• secure fit of mounting points to existing installation holes,
• consistency with other components from the Bumpers and Reinforcements group,
• reduction of potential issues with bumper cover and sensor installation.

A used OEM part allows for economical repair while maintaining the vehicle's original structural characteristics, which is particularly important after damage to the rear of the car.

Vehicle Placement and Installation Aspects

The presented beam is designed for installation in the rear of the vehicle, in the area behind the bumper cover. Its placement in the rear zone means this component works with the chassis rails, energy absorbers, and bumper mounts, creating a cohesive protective system.

When replacing, it is recommended to:

• check the straightness of the mounting points on the body,
• inspect the condition of adjacent components from the Bumpers and Reinforcements group,
• install using appropriately selected fasteners and tightening torques in accordance with service documentation.

This approach allows for restoring the proper functioning of the rear body zone after a collision or corrosion of the previous part.

Application in Accident and Restoration Repairs

The rear bumper beam in the Mercedes W164 is a key component for accident repairs when the rear of the vehicle has been deformed. Replacing this part enables:

• restoration of the correct line of the bumper and trunk lid,
• preparation of the body for further bodywork and painting,
• maintenance of the structural integrity of the vehicle's rear zone.

For drivers planning long-term vehicle ownership, using an original rear bumper beam is beneficial in terms of durability and predictable future structural performance.

Repair Extension – Mercedes Bumpers and Reinforcements

If you are planning a comprehensive repair or upgrade of the rear body section of your Mercedes and need other elements from the same group, such as reinforcements, crossbars, or additional support elements, check the available parts in the Mercedes Bumpers and Reinforcements category.

For drivers interested in a broader approach to premium vehicle servicing, including cost optimization while maintaining high quality, an article describing the use of original used parts in luxury vehicle service may be helpful – you can find it here: Luxury Within Reach – How to Service a Porsche Legend with Proven Used Parts.