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RENNtech | TCU Tune | AMG 9G Transmission Upgrade

HHT TCU Upgrade | 9G TRONIC Plus Transmissions
SKU: TCU:27.725.9.TS
Retail price without tax: $2,480.00
HHT modified Flip

RENNtech TCU upgrade for Mercedes-Benz 9G-Tronic Plus automatic transmission increases clutch torque limits and pressure, generating faster shifts and less slip for faster acceleration times.

TCU tuning is recommended for use with RENNtech ECU and Turbo upgrades, but also delivers sharper shifting and a more robust feel to stock vehicles.
Installation and programming of TCU tune requires no tools and takes only 2 minutes.

Fitment: All M176 and M177 (except R232 and W223)

  • Mercedes C-Class
    C63 (W205) 2019 - 2023
  • Mercedes E-Class
    E63 W/S 213
  • Mercedes GT 4-Door-Class
    GT 63 X290
  • Mercedes S-Class
    S560 S63 W222
  • Mercedes GLC-Class
    GLC 63
  • Mercedes G-Class
    G 550 G63
  • Mercedes-Benz GLE-Class (Coupe and SUV)
    GLE 63
  • Mercedes-Benz GLS-Class
    GLS 580 GLS 63 GLS 550

PLEASE NOTE: This upgrade is available for M177 and M176 Powered Vehicles  with 9G-Tronic Plus automatic transmissions only.


ABOUT RENNtech Option Modules -
RENNtech Option Modules (ROM) are electronic modules that offer quick solutions to override electronic factory settings and restrictions.
Installation is done in minutes through the OBD II -port, and requires no tools. 


Contact us

7825 SW Ellipse Way, Stuart, FL 34997
(+1) 561 - 845 7888
Mon - Fri 9am - 6pm


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7825 SW Ellipse Way - Stuart, FL 34997
TEL: 561.845.7888 FAX: 561.845.6777 E-MAIL: