Mercedes C117 W176 AMG Line 4Matic Brake Caliper Front Left N/S Brake Unit

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes C117 W176 AMG Line 4Matic Brake Caliper Front Left N/S Brake Unit is an original brake system component by Mercedes, designed for installation on the front left axle in vehicles equipped with 4Matic drive and the AMG Line package. This used brake caliper from this group ensures a factory-fit, maintaining the proper operating characteristics of the braking system and compatibility with other components.

Specifications and technical data

• SKU: A0004217181-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0004217181
• Substitutable numbers: A0004217181, A 000 421 71 81
• Location on the vehicle: Front, Left
• Part type: Brake Caliper
• Category: Calipers & Brackets

Purpose and technical fitment

The presented caliper belongs to the Brake calipers and carriers category and is dedicated to operation on the front left axle. The design intended for the AMG Line version and 4Matic drive allows for maintaining the correct distribution of braking force, as well as proper cooperation with the brake disc, pads, and the ABS/ESP system in the given body model.

The vehicle placement defined as front – left side facilitates unambiguous part selection during service, reducing the risk of errors during ordering and installation. This allows the mechanic to quickly verify the component's compatibility with the specific car configuration.

Performance characteristics and installation benefits

The original Mercedes brake caliper provides:

• stable guidance of the brake pad within the caliper,
• proper transfer of braking force to the disc,
• consistent cooperation with the vehicle's factory hydraulic system.

Choosing a used OEM component allows for maintaining compliance with factory operating parameters, which is particularly important in vehicles with 4Matic drive, where even braking on both axles affects driving stability. For the workshop, this means predictable installation time and no need to adapt aftermarket replacements with different geometry.

Component condition and service application

The product is offered as a used brake caliper, which represents a reasonable compromise between repair costs and maintaining the manufacturer's original specifications. Such components are frequently chosen for:

• post-accident front axle repairs,
• brake system service following guide pin or piston seizure,
• comprehensive brake system renovation in vehicles under intensive use.

Selecting the correct caliper for a specific AMG Line 4Matic version reduces the risk of uneven pad and disc wear, and minimizes the possibility of vibrations or vehicle pulling during braking.

Support in selection and cost optimization

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other elements from the same group, such as additional calipers, mounting brackets, or supports, check the available parts in the Mercedes Brake calipers and carriers category.

To better understand how to safely use used brake system components and how to assess their suitability for further operation, it is worth checking the guide: Brake calipers under the microscope: How to effectively reduce brake system repair costs by choosing verified recycled parts.

Additional tips regarding service budget optimization while maintaining an appropriate level of safety are also provided in the article Rising repair costs and the boom in used parts – how to save on car service?, which helps to consciously plan repairs using original components from the secondary market.