Mercedes-Benz W203 W204 W207 Rear Suspension Spring Coil Rubber Cap A2103250484

Mercedes-Benz W203 W204 W207 Rear Suspension Spring Coil Rubber Cap is a precision-fitted suspension system component designed for operation in the rear suspension assembly. Thanks to the carefully selected rubber hardness and factory profile, it supports stable spring performance, improving ride comfort and suspension refinement in mid-range Mercedes vehicles.

Specifications and technical data

• SKU: A2103250484
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2103250484
• Substitutable numbers: A2103250484, A 210 325 04 84, KZ
• Location on the vehicle: Rear
• Category: Shocks, Struts & Assemblies

Purpose and function in the suspension

The described rear spring cap acts as an element separating the spring from the chassis, dampening vibrations and limiting noise transmission into the cabin. The precise fit of the shape to the spring seat in W203, W204, and W207 models allows for maintaining correct suspension geometry and even support for the spring coil.

Using a dedicated cap on the rear axle is particularly important when:

• replacing suspension springs due to wear or breakage,
• diagnosing knocks and squeaks coming from the rear of the vehicle,
• restoring factory ride comfort after suspension modifications.

Construction and fitment for Mercedes W203 / W204 / W207

The component has been designed specifically to work with the rear suspension spring in W203, W204, and W207 platforms, which ensures proper seating in the mount and stable spring guidance under load. The rubber profile is molded to:

• ensure even distribution of forces along the entire circumference of the coil,
• minimize the risk of spring displacement during suspension operation,
• reduce point wear on both the spring and the chassis seat.

As a result, the suspension system maintains predictable behavior during braking, acceleration, and driving over bumps, which translates into driving stability and better vehicle control.

Benefits of using the original rear spring cap

Using the correct rubber cap on the rear axle provides measurable operational benefits:

• Noise and vibration reduction – the rubber acts as an insulator, limiting the transmission of vibrations from the suspension to the chassis.
• Stable spring support – correct coil positioning reduces the risk of spring twisting and unwanted noises.
• Better durability of suspension components – even load distribution promotes slower wear of springs and mounting seats.
• Consistency with factory handling characteristics – maintaining the original operating characteristics of the Mercedes rear suspension.

This solution is especially recommended for comprehensive rear axle maintenance when you want to restore the predictable, comfortable behavior of the car without interfering with the system's design.

Component condition and service application

The cap comes from the Shock absorbers and struts group, meaning it is a part that works directly with the springing and damping elements in the rear suspension. As a used component, it represents an economical yet functional solution for service repairs, especially when the priority is to keep the vehicle in good technical condition at reasonable costs.

Replacing the rear spring cap is recommended whenever there are visible signs of material fatigue, rubber cracking, or when unusual noises appear from the rear axle area during suspension operation. Combined with checking the springs and shock absorbers, this allows for effectively refreshing the operation of the entire system.

Technical support and educational materials

If you want to better understand how the rear spring cap fits into the operation of the entire suspension system and which symptoms indicate wear of suspension components, it is worth checking out the guide: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. You will find practical tips on diagnostics and suspension maintenance in popular models there.

If you are planning a comprehensive repair or upgrade of the suspension area in your Mercedes and need other components from the same group, such as springs, shock absorbers, or mounts, check out the available parts in the Mercedes Shock absorbers and struts category.