Mercedes W177 Brake Pump ESP ABS Hydraulic Unit Module A1779002305 A1779019102

Mercedes W177 Brake Booster ABS A1779002305 A1779019102 is an original part from the ABS and ESP System group, designed for Mercedes vehicles. It is a factory hydraulic-electronic module responsible for precise control of brake system pressure and cooperation with driving stability systems.

Specifications and technical data

• SKU: A1779002305
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779002305
• Substitutable numbers: A1779002305, A 177 900 23 05, A1779019102, A 177 901 91 02, A1779025809, A 177 902 58 09
• Category: ABS & Stability Hydraulic Units

Vehicle Application and Function

The ABS brake booster in the W177 model is responsible for dynamically dosing braking pressure to individual wheels, enabling effective operation of the anti-lock braking system and electronic stability control. A properly functioning module translates to stable vehicle behavior during sudden braking, emergency maneuvers, and driving on surfaces with varying grip.

This component works with wheel speed sensors, the vehicle's control unit, and driver assistance systems, ensuring cohesive operation of the entire active safety system. Replacing a worn or damaged booster with an original component restores the brake system's factory operating parameters.

Benefits of Using an Original ABS Booster

Using an original ABS brake booster dedicated to the W177 ensures:

• preservation of the brake system and stabilization systems' factory operating characteristics,
• compatibility with the software of control units used in the specific vehicle instance,
• appropriate hydraulic and electrical fit without the need for installation modifications,
• the possibility of correct calibration and diagnostics using factory service tools.

This allows for an organized installation process and reduces the risk of communication problems between electronic modules. This is particularly important in modern designs where the brake system is tightly integrated with driver assistance systems.

Product Characteristics and Compatibility

The offered ABS booster is a component from the Mercedes line, meaning it complies with factory quality and construction standards. The product has an assigned OEM part number and related interchangeable numbers, which facilitates verification of compatibility with a specific vehicle equipment version. Before purchasing, it is advisable to compare the markings with your vehicle's data or consult a mechanic to select the correct variant.

The component is classified in the ABS and ESP System group, making it easy to associate with other components responsible for driving safety, such as wheel speed sensors, control modules, or brake lines. Consistent selection of parts from the same technical group promotes trouble-free operation after repair.

Condition, Installation, and Service Aspects

The ABS brake booster offered in this listing is in Used condition, meaning it is a salvaged part that has been previously operated in a vehicle. This type of part is an attractive cost-effective alternative to a new module, especially for repairs where maintaining original specifications within a reasonable budget is crucial.

During installation, it is recommended to:

• perform thorough brake system diagnostics before and after replacement,
• properly bleed the system and check for leaks at connections,
• verify correct communication with the vehicle's electronics and perform any necessary adaptations in the control unit.

Professional installation at a specialized service center allows for full utilization of the part's potential and reduces the risk of further system interventions.

Complementary Technical Information and Guides

If you are planning a broader range of service work on your Mercedes, it is also worth considering other components responsible for driving comfort and safety. When working on the brake system, interior thermal comfort systems are often also inspected. A helpful guide for selecting used OEM parts is: Air Conditioning and Heating – How to Choose Used OEM Parts and Plan Maintenance.

If you are also looking for other parts from the ABS and ESP System group for your Mercedes, use the filtering options by brand, OEM part number, or interchangeable numbers to efficiently find compatible components and build a cohesive repair set.