BMW 3 Series E90 E92 M3 Throttle Body Position Hall Sensor Unit 7841706 7841704

BMW 3 Series E90 E92 M3 Throttle Body Position Hall Sensor Unit is a component from the Cables, harnesses and connectors group, designed for precise cooperation with control systems in sports versions of the BMW 3 Series. The used OEM component ensures factory fitment, stable operating parameters, and predictable performance in demanding operating conditions.

Specifications and technical data

• SKU: 7841704
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7841706
• Substitutable numbers: 13627841704, 7841704, 13547838021, 7838021, 7841706, EM
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the BMW M3 Hall sensor

The BMW 3 Series E90 E92 M3 Throttle Body Position Hall Sensor Unit is responsible for the precise transmission of signals to the vehicle's control units, which has a direct impact on the engine's performance and the correct operation of related systems. Thanks to a design based on OEM solutions, full compatibility with the factory electrical installation and control logic is maintained.

The element belongs to the Cables, harnesses and connectors group, which means it works with the vehicle's electrical system via dedicated connectors and cable sections, minimizing the risk of signal interference and communication problems between modules.

Construction, connectors and integration with the installation

The solution used in this Hall sensor allows for direct integration with the factory BMW harness, without the need for modifications or soldering wires. The connectors used are matched to the original sockets in the vehicle, which facilitates installation and reduces the risk of installation errors.

In practice, this means that:

• installation is carried out in an orderly manner, maintaining factory cable routing,
• connectors ensure stable electrical contact and resistance to typical vibrations occurring in the engine compartment,
• the sensor works with the existing BMW controller architecture without the need for additional configuration.

Benefits of using an original BMW component

Choosing a used Hall sensor from the OEM group for the BMW M3 E90/E92/E93 allows you to maintain the consistency of the entire electrical system. Factory fitment reduces the risk of diagnostic errors, unstable readings, or communication problems between control modules.

Key advantages include:

• maintaining the original operating characteristics of the control system,
• secure fitment to factory BMW cables, harnesses, and connectors,
• the ability to be used as a replacement element within the existing installation without interfering with the vehicle's construction.

Condition, verification and service application

The product is in used condition, which makes it an attractive service solution for owners of the BMW M3 E90, E92, and E93 who are looking for parts with factory specifications at a reasonable price. A used component from the OEM group is a good solution for repairs where maintaining original control logic and compatibility with the existing harness is crucial.

It works well both for typical replacement of a damaged sensor and for more extensive work on the electrical installation, where it is required to maintain the consistency of all elements from the cables, harnesses, and connectors group.

Expansion of BMW installation modernization

If you are planning a comprehensive repair or modernization of the electrical installation area in your BMW and need other elements from the same group, such as additional harnesses, cable sections, or compatible connectors, check the available parts in the BMW cables, harnesses and connectors category.

If you are interested in a broader context of using used electrical and mechanical components when refreshing older generations of BMW and other premium brands, it is worth reading the practical tips in the article The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years, which discusses modernization scenarios and component selection in terms of compatibility.