Lemforder 2517302 Suspension Control Arm

Lemforder 2517302 Suspension Control Arm

The Lemforder 2517302 is a high‑performance suspension control arm designed for the rear axle of Mercedes‑Benz vehicles, particularly the C‑Class (W203) and its derivatives such as the CLK, SLK, and CLC. This component plays a pivotal role in maintaining wheel alignment, ensuring optimal handling, and providing durability under demanding driving conditions.

Key Functionalities

• Wheel Alignment Control: The control arm maintains the correct camber, caster, and toe angles during suspension travel, which is essential for tire wear consistency and vehicle stability.
• Load Distribution: It evenly distributes lateral and longitudinal forces across the rear axle, reducing stress on other suspension elements like bushings and shock absorbers.
• Durability: Constructed from high‑strength steel with a protective coating, it resists corrosion and fatigue over extended mileage.
• Compatibility: Engineered to fit both left and right sides of the rear axle, making it suitable for symmetrical vehicle setups.

Material & Construction

The arm is fabricated from high‑grade alloy steel, which offers a superior strength-to-weight ratio. The manufacturing process includes:

1. Precision Machining: Ensures tight tolerances for bolt hole placement and mounting surfaces.
2. Heat Treatment: Enhances hardness and fatigue resistance, critical for withstanding repetitive load cycles.
3. Surface Coating: A multi‑layer anti‑corrosion finish protects against rust in varied climates.

Installation Overview

Installing the Lemforder 2517302 involves replacing the existing rear control arm with a new unit. The process typically follows these steps:

1. Safety First: Secure the vehicle on jack stands and remove the rear wheels.
2. Remove Old Arm: Detach the bolts connecting the old control arm to the chassis and wheel hub assembly. Carefully note the orientation of bushings and mounting brackets.
3. Prepare New Arm: Inspect the new unit for any manufacturing defects. Apply a thin layer of anti‑seize compound on bolt threads if recommended by the manufacturer.
4. Mounting: Align the new arm with the chassis and wheel hub, then secure it using the original bolts or OEM replacements. Torque specifications should follow the vehicle’s service manual.
5. Reassembly: Reinstall wheels, lower the vehicle, and perform a final torque check on all fasteners.

Performance Benefits

• Improved Handling: By maintaining precise wheel geometry, the arm enhances cornering grip and reduces body roll.
• Extended Component Life: The robust construction lessens wear on bushings, shocks, and steering linkages.
• Consistent Ride Quality: Proper alignment ensures a smooth ride even over uneven road surfaces.

Compatibility Summary

The Lemforder 2517302 is specifically engineered for the following Mercedes‑Benz models:

• C‑Class (W203) – 2000 to 2007
• CLK, SLK, and CLC variants derived from the W203 platform
• Other vehicles with similar rear suspension geometry as indicated by OEM part numbers such as 25173 02 and related references.

Maintenance Tips

1. Regular Inspection: Check for signs of wear or damage on bushings, bolts, and the arm itself during routine maintenance intervals.
2. Torque Checks: Re‑torque fasteners after a few hundred miles to ensure secure mounting.
3. Cleanliness: Keep the area around the control arm free from debris that could compromise bushings or seals.

Conclusion

The Lemforder 2517302 Suspension Control Arm delivers reliable performance, durability, and precise wheel alignment for Mercedes‑Benz rear suspensions. Its high‑quality construction and proven fitment across multiple model years make it a trusted choice for mechanics and enthusiasts seeking to maintain or restore optimal vehicle dynamics.