LEMFÃ-RDER – Control 37745 01 Bearing/Motor

Product Overview

The LEMFÖRDER Control 37745 01 Bearing/Motor is a high‑performance engine mounting solution engineered for the rear and upper motor positions in a range of Mercedes‑Benz vehicles, including the GLA, CLA Coupe, A‑Klass (W176), B‑Class Sports Tourer, and various W242/W246 models. Designed to replace or upgrade existing mounts, it delivers superior vibration isolation, structural rigidity, and longevity.

Key Design Features

Advanced Bearing Technology

The core of the mounting system is a precision‑machined bearing assembly that ensures smooth load distribution across the engine block. The bearing incorporates high‑grade steel with a surface finish tolerance of ±0.02 mm, minimizing micro‑defects and reducing wear over time.

Robust Mounting Interface

The mounting interface is engineered to match the original factory geometry, featuring integrated alignment pins that guarantee accurate placement during installation. The design also includes a dual‑layer damping system—a combination of elastomeric pads and metal springs—to absorb engine vibrations without compromising structural integrity.

Material Composition

The bearing housing is fabricated from high‑strength alloy steel (AISI 4140), treated with a phosphating process to enhance corrosion resistance. The elastomeric components are made from urethane rubber with a Shore A hardness of 70, providing both flexibility and durability under high temperature conditions.

Compatibility & Application

The Control 37745 01 is specifically tailored for the following Mercedes‑Benz models:

• GLA (X156)
• A‑Klass (W176) 1.6, 2015‑2018
• B‑Class Sports Tourer
• CLA Coupe (C117)
• W242/W246 series

It serves both the rear engine mounting and the upper motor support, making it a versatile replacement for original OEM mounts that may have suffered from fatigue or wear.

Installation Guide

Preparation

1. Disconnect the battery and ensure the vehicle is securely lifted on jack stands.
2. Remove any existing engine mount components, noting their orientation for accurate reassembly.
3. Clean the mounting surface with a solvent to remove oil or debris.

Mounting Procedure

1. Position the Control 37745 01 bearing onto the cleaned surface, aligning the alignment pins with the engine block.
2. Screw the mounting bolts in a cross‑pattern sequence to evenly distribute torque.
3. Torque each bolt to the manufacturer’s specification (typically 80–100 Nm) using a calibrated torque wrench.
4. Reinstall any ancillary components such as brackets or brackets, ensuring all fasteners are tightened securely.

Final Checks

• Verify that the engine sits level and that there is no undue play in the mounting area.
• Reconnect the battery and perform a short test drive to confirm smooth operation.

Performance Benefits

The Control 37745 01 offers several tangible advantages over standard mounts:

• Reduced Vibration Transmission: The dual‑layer damping system lowers engine noise by up to 30 dB in the cabin.
• Extended Lifespan: High‑grade materials and precision machining reduce wear, extending component life beyond 200,000 km under normal driving conditions.
• Improved Structural Integrity: The robust bearing design maintains engine alignment, preventing premature suspension or chassis fatigue.
• Easy Maintenance: Modular construction allows for straightforward replacement of individual components if needed.

Technical Specifications

Maintenance & Longevity Tips

• Inspect the elastomeric pads annually for signs of cracking or hardening; replace if necessary.
• Check bolt torque every 50,000 km to ensure secure mounting.
• Avoid exposure to extreme temperatures or corrosive environments that could degrade material properties.

Conclusion

The LEMFÖRDER Control 37745 01 Bearing/Motor is a meticulously engineered component that enhances the performance, durability, and comfort of Mercedes‑Benz vehicles. Its precision bearing system, robust materials, and thoughtful design make it an ideal choice for anyone seeking to upgrade or replace rear engine mounts with confidence in long‑term reliability.