Ignitions and Electrical› Computers, Chips, Modules and Programmers

Unitronic

DQ501 Unlocked TCU

$2,299.98

SKU: UH013-DR2

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Unitronic DQ501 Unlocked TCU is a transmission tuning solution for 8Y RS3 customers. This unit replaces your existing TCU and is prepared and VIN-synced for plug-n-play installation. Unitronic TCU Software is required for this upgrade.
Show original supplier description
The Unitronic DQ501 Unlocked TCU (UH013-DR2) offers a transmission tuning solution for Audi 8Y RS3 models. This product is a genuine Bosch DQ501 Unlocked TCU that completely replaces your existing unit. It arrives expertly prepared and VIN-synced, making it ready for a plug-and-play installation into your gearbox. Unitronic also offers an optional Install Kit, which includes necessary service items and hardware, especially beneficial if your gearbox is due for a service. To utilize this upgrade, Unitronic TCU Software is a mandatory requirement. When purchasing this TCU upgrade, be prepared to provide Unitronic with your vehicle's TCU ID, TCU Revision, and VIN. This information is crucial to ensure the unit can be properly configured for your specific vehicle. Unitronic also recommends pairing this TCU upgrade with their ECU Software for optimal performance.
Vehicle Symptoms
  • Sluggish or delayed gear shifts during acceleration
  • Harsh or jerky downshifts when decelerating
  • Transmission slipping between gears under load
  • Inconsistent shift timing after engine modifications
  • Loss of transmission responsiveness in sport mode
Diagnostic Codes
  • P0700 – Transmission Control System Malfunction
  • P0730 – Incorrect Gear Ratio
  • P0741 – Torque Converter Clutch Circuit Performance or Stuck Off
  • P0765 – Shift Solenoid C Performance or Stuck Off
  • P0720 – Output Speed Sensor Circuit Malfunction
Relevant Conversations
  • DQ501 TCU unlock for Audi RS3 tuning
  • Unitronic DQ501 transmission tune review
  • Audi 8Y RS3 sluggish shifts after tune
  • P0700 code on Audi RS3 DQ501
  • Best transmission upgrade for RS3 8Y
  • DQ501 vs stock TCU shift quality comparison
  • How to install DQ501 unlocked TCU
  • Audi RS3 transmission slipping after stage 1
  • Unitronic TCU software required for unlocked ECU
  • DQ501 TCU VIN sync and plug and play installation

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandUnitronic
Part NumberUH013-DR2
CategoryIgnitions and Electrical
5,000+ Trusted brands
1M+ Enthusiasts
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(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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