BMW 3 Series E46 ASC Hydro Hydraulic Unit Pump Module 6751767 6751768

BMW 3 Series E46 ASC Hydro Hydraulic Unit Pump Module is a factory component from the ABS and ESP system group, responsible for precise control of the ASC traction control system in this model. Using an original hydraulic-electronic module allows for maintaining consistency with the vehicle's factory configuration, which translates into stable operation of safety systems and predictable vehicle behavior on the road.

Specifications and technical data

• SKU: 6756287
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6751767 6751768
• Substitutable numbers: 6751767, 6751768, 34516756287, 6756287, 34511164477, 1164477, 34516751770, 6751770, EM
• Category: ABS & Stability Hydraulic Units

Purpose and function in the ABS/ASC system

The pump with the control unit in the ASC system of the BMW E46 is responsible for generating and precisely metering pressure in the brake circuits during system intervention. It works in conjunction with wheel speed sensors and the electronics monitoring the system's operation to limit drive wheel slip and stabilize the vehicle's path in emergency situations.

Using an original component from this group ensures:

• maintenance of factory operating parameters for the ASC and ABS system,
• proper communication with the vehicle's electrical installation,
• consistency with the control software used in the BMW E46.

Benefits of using an original BMW module

The component comes from the vehicle manufacturer's line, which means full structural compatibility with the specific BMW E46 platform. The original hydraulic-electronic module minimizes the risk of issues with system bleeding, leaks, or communication errors in the vehicle network.

Key advantages include:

• Factory compatibility with the wiring harness and brake lines in the given model,
• maintenance of the ASC system operating characteristics intended by the manufacturer,
• possibility of diagnostics and adaptation using standard BMW service tools.

Application in service and repairs

The pump with the ASC control unit is particularly useful for repairs involving symptoms such as improper operation of the traction control system, error messages related to the hydraulic-electronic module, or problems with maintaining pressure in the circuit controlled by the ASC. Replacing the complete assembly often allows for shorter diagnostic time and restoring proper system operation without the need for component-level electronic intervention.

A used element of this type is an economical solution that allows for reducing repair costs while maintaining the original manufacturer's specification. The ABS and ESP system in a BMW is designed as a whole, which is why using a factory module promotes stable operation of the entire system.

Condition and preparation for installation

The product is offered as a dismantled part, which allows for an advantageous combination of price and the preservation of the original BMW design. Before installation, a standard service procedure is recommended: checking connection tightness, proper electrical connection, and bleeding the brake system in accordance with the procedure for the BMW E46.

Due to the nature of the component, installation should be performed by a person with experience in working with brake systems and active safety systems to fully utilize the potential of this solution.

Expanding knowledge and selecting components

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other elements from the same group, such as pumps, controllers, or stability control modules, check the available parts in the BMW ABS and ESP system category.

For drivers interested in a broader look at the solutions used by the manufacturer, including the cooperation of stability systems with all-wheel drive, an article comparing different AWD systems may be helpful – you can find it here: xDrive, 4Matic, quattro or 4Motion – AWD systems comparison.