Volkswagen Jetta A6 Gearbox Speed Sender G182 Automatic Transmission 09M927321B

Volkswagen Jetta A6 Gearbox Speed Sender G182 Automatic Transmission is a precision component from the Transmission sensors category, designed for use with the automatic transmission in the Jetta A6 model. It is responsible for reliable rotational speed readings, which is crucial for smooth transmission operation and stable gear shifting characteristics.

Specifications and technical data

• SKU: 09M927321B
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 09M927321B
• Substitutable numbers: 09M927321B, 09M 927 321 B
• Gearbox type: Automatic
• Category: Transmission Sensors

Purpose and function of the G182 speed sensor

The G182 speed sensor in an automatic transmission is responsible for monitoring shaft rotational speed and transmitting the signal to the transmission control unit. Based on this data, the control module selects the appropriate gear ratio, controls shift timing, and interacts with safety and driving comfort systems.

A functioning speed sensor helps reduce common automatic transmission faults, such as jerking during gear changes, delayed throttle response, or incorrect gear shifting. Replacing a worn-out part with an original Volkswagen component is therefore an important step toward stable, predictable drivetrain operation.

Benefits of using an original Volkswagen sensor

Using a speed sensor dedicated to the automatic transmission in the Jetta A6 ensures:

• High signal compatibility with the factory transmission control unit, which minimizes the risk of errors and limp mode.
• Stable gear shifting characteristics, without unwanted delays or accidental downshifts.
• Better interaction with vehicle systems, such as traction control or driver assistance systems.
• The ability to restore proper transmission operation after errors related to rotational speed readings occur.

The component in this category is particularly important in vehicles used in urban traffic, where frequent gear changes and variable transmission loads require a precise, repeatable signal from the sensor.

Installation and operational characteristics

The G182 speed sensor is structurally prepared to work in the demanding environment of an automatic transmission, where temperature changes, the presence of transmission fluid, and vibrations occur. A properly selected housing and electrical connector ensure secure seating in the transmission casing and a stable connection to the wiring harness.

When replacing, it is recommended to:

• inspect the mounting socket in the transmission housing,
• check the condition of the connector and electrical wiring,
• clear errors in the control unit after installation and perform a test drive.

This approach allows you to fully utilize the potential of the newly installed sensor and quickly verify the repair effect.

Selecting the sensor for a specific automatic transmission

To correctly select a speed sensor for your Jetta A6, it is worth paying attention to the type of automatic transmission used and the factory part markings. Proper matching eliminates mechanical and electrical compatibility issues and reduces the risk of having to disassemble the transmission or its components again.

If you are planning a comprehensive repair or upgrade of the transmission area in your Volkswagen and need other components from the same group, such as position sensors, oil temperature sensors, or other measuring elements, check the available parts in the Volkswagen transmission sensors category.

Technical support and knowledge about automatic transmissions

When diagnosing faults related to automatic transmission operation and selecting the correct speed sensor, specialized knowledge about the typical problems of these transmissions will be helpful. A detailed discussion of the differences between manual, automatic, and DSG transmissions, as well as practical tips on purchasing used components, can be found in the article "Transmission: manual, automatic, or DSG – typical faults and a guide to buying a used transmission".

Additional information on when choosing used components for a Volkswagen is economically and technically justified is provided in the post "Volkswagen – solidity and reliability. Why are used VW parts a reasonable choice?", which discusses, among other things, compatibility issues and practical aspects of installation.