Transmission Speed Sensor 0B5927321L for Audi A4 A5 A6 A7 Q5 - 7-Speed Automatic Gearbox Position Sensor

For Audi automobiles with seven-speed automatic transmissions, this Transmission Speed Sensor 0B5927321L is a direct OEM replacement. This part, sometimes referred to as a gear position sensor or gearbox speed sensor, guarantees precise gearbox control and seamless gear changes in your Audi A4, A5, A6, A7, or Q5.

Function: Measures gearbox output/input speed for efficient transmission control.

OEM Number: 0B5927321F, 0B5927321L, 0B5927321J, 24012-83803
0B5 927 321F, 0B5 927 321L, 0B5 927 321J, 24012-83803
96SKV421, EAT-AU-011

Transmission Type : 7-Speed Automatic Transmission

Quantity : 1

Key Features:

• OEM Quality Construction : Premium aftermarket part built to original specifications
• Direct Fit Replacement : No modifications required for installation
• Accurate Speed Detection : Precisely monitors transmission input/output speeds
• Enhanced Performance : Improves gear shifting smoothness and transmission efficiency
• Transmission Health : Helps maintain optimal fuel efficiency and extends gearbox life

Benefits:
Ensures accurate speed signal to the ECU for smoother shifting.
Helps maintain fuel efficiency and transmission health.
Direct fit replacement, no modifications required.

Vehicle Compatibility:

This transmission speed sensor is compatible with the following Audi models equipped with 7-speed automatic transmission:

Audi A4 (B8) - 2007-2015

• All engine variants (2.0 TDI, 2.7 TDI, 3.0 TDI, 2.0 TFSI, 3.2 FSI, S4, RS4)
• Saloon, Estate, and Allroad body styles

Audi A5 - 2007-2017

• Coupe and Sportback variants
• All engine options including S5 and RS5

Audi A6 (C7) - 2011-2018

• Saloon, Estate, and Allroad models
• Compatible with S6 variants

Audi A7 - 2010-2018

• All engine configurations including S7

Audi Q5 - 2008-2017

• All drivetrain options (FWD and quattro)

Installation Notes:

Professional installation recommended. This sensor connects to the transmission control module to provide real-time speed data for optimal gear selection. Compatible with vehicles using VAG diagnostic systems.

Why Choose This Sensor:

• Genuine OEM Specifications - Manufactured to Audi's exact standards
• Long Service Life - Durable construction for extended reliability
• Improved Diagnostics - Eliminates transmission fault codes related to speed sensing
• Cost-Effective Solution - Premium quality at competitive pricing

Symptoms of a Faulty Transmission Speed Sensor:

• Erratic shifting or transmission slipping
• Check engine light or transmission warning lights
• Poor fuel economy
• Transmission stuck in limp mode
• Diagnostic trouble codes P0715, P0720, P0722

Our SKU : TA0B5927321L_94

All our AUTOMATIC GEARBOX TRANSMISSION SPEED SENSOR 0B5927321L FOR FOR AUDI A4 B8 (8K) are OEM quality and reliable after market car parts. This AUTOMATIC GEARBOX TRANSMISSION SPEED SENSOR 0B5927321L FOR FOR AUDI A4 B8 (8K) is specifically compatible with Audi: A4, A4 Allroad, A5, A6, A6 Allroad, A7, Q5, .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

❓ Frequently Asked Questions (FAQs)

Q1: What is a transmission speed sensor and what does it do?
This sensor (sometimes called a gear position/speed sensor) monitors the rotational speed of the transmission’s input/output shafts. The data is used by the transmission control unit (TCU) to decide shift timing, torque management, and overall transmission behavior. 

Q2: Which vehicles and transmissions is this sensor compatible with?
It’s compatible with Audi models that use the 7‑speed automatic (DL501 / “0B5”) transmission, including A4, A5, A6, A7, Q5. OEM numbers include 0B5927321L, 0B5927321F, 0B5927321J, and others.

Q3: Is this a direct plug‑and‑play replacement?
Yes. It’s designed to match OEM specifications, so if your existing sensor matches the same reference and connector, it should install without modification.

Q4: What are signs that the transmission speed sensor is failing?

• Erratic or delayed shifting

• Transmission slipping or poor shift quality

• “Gearbox malfunction” warning or transmission fault codes

• Limp mode activation (reduced gear use)

• Diagnostic codes such as P0715, P0720, or P0722

Q5: How do I confirm this sensor fits my specific car?

• Check the part number printed on your existing sensor

• Compare the transmission type in your vehicle (should be 7‑speed DL501 / 0B5)

• Provide your VIN / engine & transmission code to a parts vendor or use a compatibility tool on the listing page

Q6: What happens if I install the wrong sensor?
If the sensor is incompatible, you may get incorrect speed readings, shift errors, transmission faults, or limp mode behavior. It’s important to use the correct OEM match.

Q7: What warranty or return policy is offered?
This listing provides 60 days returns for new and unopened parts. Always check the individual product page for warranty details.